Adding upstream version 1:4.5.upstream/1%4.5upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

325 files changed, 19602 insertions, 0 deletions

diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config.txt b/tests/grouptools/groupmod/01_groupmod_change_gid/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/default/useradd b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/group b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/gshadow b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/login.defs b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/passwd b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/shadow b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/data/group b/tests/grouptools/groupmod/01_groupmod_change_gid/data/group
new file mode 100644
index 0000000..b51c3ad
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
diff --git a/tests/grouptools/groupmod/01_groupmod_change_gid/groupmod.test b/tests/grouptools/groupmod/01_groupmod_change_gid/groupmod.test
new file mode 100755
index 0000000..5c32e0b
--- /dev/null
+++ b/tests/grouptools/groupmod/01_groupmod_change_gid/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID of a group"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config.txt b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/default/useradd b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/group b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/gshadow b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/login.defs b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/passwd b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/passwd
new file mode 100644
index 0000000..dc7bf84
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/passwd
@@ -0,0 +1,20 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
+foo:x:1000:1000:::/bin/false
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/shadow b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/shadow
new file mode 100644
index 0000000..2baad3b
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/config/etc/shadow
@@ -0,0 +1,20 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
+foo:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/group b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/group
new file mode 100644
index 0000000..b51c3ad
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/passwd b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/passwd
new file mode 100644
index 0000000..9fd396a
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/data/passwd
@@ -0,0 +1,20 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
+foo:x:1000:1001:::/bin/false
diff --git a/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/groupmod.test b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/groupmod.test
new file mode 100755
index 0000000..f92fc52
--- /dev/null
+++ b/tests/grouptools/groupmod/02_groupmod_change_gid_change_primary_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod changes the primary group of users when it changes the GID of a group"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl data/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config.txt b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/default/useradd b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/group b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/gshadow b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/login.defs b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/passwd b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/shadow b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/data/group b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/data/group
new file mode 100644
index 0000000..b51c3ad
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
diff --git a/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/groupmod.test b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/groupmod.test
new file mode 100755
index 0000000..4b327c5
--- /dev/null
+++ b/tests/grouptools/groupmod/03_groupmod_change_gid_no_gshadow_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID of a group (no gshadow group)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config.txt b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/default/useradd b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/group b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/gshadow b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/login.defs b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/passwd b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/shadow b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/data/group b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/data/group
new file mode 100644
index 0000000..b51c3ad
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
diff --git a/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/groupmod.test b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/groupmod.test
new file mode 100755
index 0000000..6ba1e5e
--- /dev/null
+++ b/tests/grouptools/groupmod/04_groupmod_change_gid_no_gshadow_file/groupmod.test
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo "remove the gshadow file"
+rm -f /etc/gshadow
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+test ! -f /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config.txt b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config.txt
new file mode 100644
index 0000000..872618a
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config.txt
@@ -0,0 +1,2 @@
+group foo, GID 1000
+group bar, GID 1001
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/default/useradd b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/group b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/group
new file mode 100644
index 0000000..e65d5b0
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/group
@@ -0,0 +1,43 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
+bar:x:1001:
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/gshadow b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/gshadow
new file mode 100644
index 0000000..d8aa8ad
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/gshadow
@@ -0,0 +1,43 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
+bar:*::
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/login.defs b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/passwd b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/shadow b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/data/group b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/data/group
new file mode 100644
index 0000000..2c24807
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/data/group
@@ -0,0 +1,43 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
+bar:x:1001:
diff --git a/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/groupmod.test b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/groupmod.test
new file mode 100755
index 0000000..51f92a7
--- /dev/null
+++ b/tests/grouptools/groupmod/05_groupmod_change_gid_-o_override_used_GID/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID of a group to an already used GID, with -o"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 -o foo)..."
+groupmod -g 1001 -o foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config.txt b/tests/grouptools/groupmod/06_groupmod_change_group_name/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/default/useradd b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/group b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/gshadow b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/login.defs b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/passwd b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/shadow b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/data/group b/tests/grouptools/groupmod/06_groupmod_change_group_name/data/group
new file mode 100644
index 0000000..75815b9
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+bar:x:1000:
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/data/gshadow b/tests/grouptools/groupmod/06_groupmod_change_group_name/data/gshadow
new file mode 100644
index 0000000..e814af0
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+bar:*::
diff --git a/tests/grouptools/groupmod/06_groupmod_change_group_name/groupmod.test b/tests/grouptools/groupmod/06_groupmod_change_group_name/groupmod.test
new file mode 100755
index 0000000..cb567a8
--- /dev/null
+++ b/tests/grouptools/groupmod/06_groupmod_change_group_name/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the name of a group"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to bar (groupmod -n bar foo)..."
+groupmod -n bar foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config.txt b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/default/useradd b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/group b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/gshadow b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/login.defs b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/passwd b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/shadow b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/data/group b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/data/group
new file mode 100644
index 0000000..75815b9
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+bar:x:1000:
diff --git a/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/groupmod.test b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/groupmod.test
new file mode 100755
index 0000000..65391ba
--- /dev/null
+++ b/tests/grouptools/groupmod/07_groupmod_change_group_name_no_gshadow_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the name of a group (no gshadow group)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to bar (groupmod -n bar foo)..."
+groupmod -n bar foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config.txt b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/default/useradd b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/group b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/gshadow b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/login.defs b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/passwd b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/shadow b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/data/group b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/data/group
new file mode 100644
index 0000000..75815b9
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+bar:x:1000:
diff --git a/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/groupmod.test b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/groupmod.test
new file mode 100755
index 0000000..dee0d5b
--- /dev/null
+++ b/tests/grouptools/groupmod/08_groupmod_change_group_name_no_gshadow_file/groupmod.test
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the name of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo "remove the gshadow file"
+rm -f /etc/gshadow
+
+echo -n "Rename group foo to bar (groupmod -n bar foo)..."
+groupmod -n bar foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+test ! -f /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config.txt b/tests/grouptools/groupmod/09_groupmod_set_password/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/default/useradd b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/group b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/gshadow b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/login.defs b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/passwd b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/shadow b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/data/gshadow b/tests/grouptools/groupmod/09_groupmod_set_password/data/gshadow
new file mode 100644
index 0000000..601bd46
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:foopassw::
diff --git a/tests/grouptools/groupmod/09_groupmod_set_password/groupmod.test b/tests/grouptools/groupmod/09_groupmod_set_password/groupmod.test
new file mode 100755
index 0000000..dd2b400
--- /dev/null
+++ b/tests/grouptools/groupmod/09_groupmod_set_password/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config.txt b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/default/useradd b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/group b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/gshadow b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/login.defs b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/passwd b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/shadow b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/data/gshadow b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/data/gshadow
new file mode 100644
index 0000000..601bd46
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:foopassw::
diff --git a/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/groupmod.test b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/groupmod.test
new file mode 100755
index 0000000..01a7d46
--- /dev/null
+++ b/tests/grouptools/groupmod/10_groupmod_set_password_no_gshadow_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow group)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config.txt b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/default/useradd b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/group b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/group
new file mode 100644
index 0000000..7c2b4e8
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:oldpass:1000:
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/gshadow b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/login.defs b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/passwd b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/shadow b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/data/group b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/data/group
new file mode 100644
index 0000000..fafb2ea
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:foopassw:1000:
diff --git a/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/groupmod.test b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/groupmod.test
new file mode 100755
index 0000000..44597ad
--- /dev/null
+++ b/tests/grouptools/groupmod/11_groupmod_set_password_no_gshadow_file/groupmod.test
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo "Remove the gshadow file"
+rm -f /etc/gshadow
+
+echo -n "Change GID of foo to 1001 (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+test ! -f /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config.txt b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/default/useradd b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/group b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/gshadow b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/login.defs b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/passwd b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/shadow b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/data/groupmod.err b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/data/groupmod.err
new file mode 100644
index 0000000..35720f8
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: group 'bar' does not exist
diff --git a/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/groupmod.test b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/groupmod.test
new file mode 100755
index 0000000..4c7f477
--- /dev/null
+++ b/tests/grouptools/groupmod/12_groupmod_change_gid_error_unknown_group/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the group exists"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of bar to 1001 (groupmod -g 1001 bar)..."
+groupmod -g 1001 bar 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "6"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config.txt b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config.txt
new file mode 100644
index 0000000..872618a
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config.txt
@@ -0,0 +1,2 @@
+group foo, GID 1000
+group bar, GID 1001
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/default/useradd b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/group b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/group
new file mode 100644
index 0000000..e65d5b0
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/group
@@ -0,0 +1,43 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
+bar:x:1001:
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/gshadow b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/gshadow
new file mode 100644
index 0000000..d8aa8ad
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/gshadow
@@ -0,0 +1,43 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
+bar:*::
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/login.defs b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/passwd b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/shadow b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/data/groupmod.err b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/data/groupmod.err
new file mode 100644
index 0000000..796f655
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: GID '1001' already exists
diff --git a/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/groupmod.test b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/groupmod.test
new file mode 100755
index 0000000..9ce5bfe
--- /dev/null
+++ b/tests/grouptools/groupmod/13_groupmod_change_gid_error_used_GID/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the new GID is used"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "4"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config.txt b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config.txt
new file mode 100644
index 0000000..872618a
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config.txt
@@ -0,0 +1,2 @@
+group foo, GID 1000
+group bar, GID 1001
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/default/useradd b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/group b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/group
new file mode 100644
index 0000000..e65d5b0
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/group
@@ -0,0 +1,43 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
+bar:x:1001:
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/gshadow b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/gshadow
new file mode 100644
index 0000000..d8aa8ad
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/gshadow
@@ -0,0 +1,43 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
+bar:*::
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/login.defs b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/passwd b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/shadow b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/data/groupmod.err b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/data/groupmod.err
new file mode 100644
index 0000000..97ea6f6
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: group 'bar' already exists
diff --git a/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/groupmod.test b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/groupmod.test
new file mode 100755
index 0000000..1245a9d
--- /dev/null
+++ b/tests/grouptools/groupmod/14_groupmod_change_group_name_error_used_name/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the new group name is used"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to bar (groupmod --new-name bar foo)..."
+groupmod --new-name bar foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "9"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config.txt b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config.txt
new file mode 100644
index 0000000..872618a
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config.txt
@@ -0,0 +1,2 @@
+group foo, GID 1000
+group bar, GID 1001
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/default/useradd b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/group b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/group
new file mode 100644
index 0000000..e65d5b0
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/group
@@ -0,0 +1,43 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
+bar:x:1001:
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/gshadow b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/gshadow
new file mode 100644
index 0000000..d8aa8ad
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/gshadow
@@ -0,0 +1,43 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
+bar:*::
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/login.defs b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/passwd b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/shadow b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/data/groupmod.err b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/data/groupmod.err
new file mode 100644
index 0000000..1a0e537
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: invalid group name 'to:to'
diff --git a/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/groupmod.test b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/groupmod.test
new file mode 100755
index 0000000..f326d1d
--- /dev/null
+++ b/tests/grouptools/groupmod/15_groupmod_change_group_name_error_invalid_name/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the new group name is used"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to to:to (groupmod --new-name to:to foo)..."
+groupmod --new-name to:to foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "3"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config.txt b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/default/useradd b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/group b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/gshadow b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/login.defs b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/passwd b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/shadow b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/groupmod.test b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/groupmod.test
new file mode 100755
index 0000000..f9a3519
--- /dev/null
+++ b/tests/grouptools/groupmod/16_groupmod_change_group_name_no_changes/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can rename a group to its name"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to foo (groupmod -n foo foo)..."
+groupmod -n foo foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config.txt b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/default/useradd b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/group b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/gshadow b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/login.defs b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/passwd b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/shadow b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/data/groupmod.err b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/data/groupmod.err
new file mode 100644
index 0000000..e399ec7
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/data/groupmod.err
@@ -0,0 +1,2 @@
+groupmod: existing lock file /etc/group.lock without a PID
+groupmod: cannot lock /etc/group; try again later.
diff --git a/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/groupmod.test b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/groupmod.test
new file mode 100755
index 0000000..21a0a1b
--- /dev/null
+++ b/tests/grouptools/groupmod/17_groupmod_change_gid_error_locked_group/groupmod.test
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the group file is locked"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/group.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/group..."
+touch /etc/group.lock
+echo "done"
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+rm -f /etc/group.lock
+
+echo -n "Check returned status ($status)..."
+test "$status" = "10"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config.txt b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/default/useradd b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/group b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/gshadow b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/login.defs b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/passwd b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/shadow b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/data/group b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/data/group
new file mode 100644
index 0000000..b51c3ad
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1001:
diff --git a/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/groupmod.test b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/groupmod.test
new file mode 100755
index 0000000..60b4c4f
--- /dev/null
+++ b/tests/grouptools/groupmod/18_groupmod_change_gid_no_error_locked_gshadow/groupmod.test
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the gshadow file is locked only if gshadow is changed"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/gshadow.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/gshadow..."
+touch /etc/gshadow.lock
+echo "done"
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo
+echo "OK"
+
+echo -n "Delete lock file for /etc/gshadow..."
+rm -f /etc/gshadow.lock
+echo "done"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config.txt b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/default/useradd b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/group b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/gshadow b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/login.defs b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/passwd b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/shadow b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/data/groupmod.err b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/data/groupmod.err
new file mode 100644
index 0000000..c8745ef
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: invalid group ID '1001a'
diff --git a/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/groupmod.test b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/groupmod.test
new file mode 100755
index 0000000..d3ae0a1
--- /dev/null
+++ b/tests/grouptools/groupmod/19_groupmod_change_gid_error_invalid_GID/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the specified GID is valid"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of bar to 1001a (groupmod -g 1001a bar)..."
+groupmod -g 1001a bar 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "3"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config.txt b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/default/useradd b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/group b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/gshadow b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/login.defs b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/passwd b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/shadow b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/data/groupmod.err b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/data/groupmod.err
new file mode 100644
index 0000000..824372f
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: invalid group ID '-1001'
diff --git a/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/groupmod.test b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/groupmod.test
new file mode 100755
index 0000000..cc583b9
--- /dev/null
+++ b/tests/grouptools/groupmod/20_groupmod_change_gid_error_negativ_GID/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the specified GID is valid"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of bar to -1001 (groupmod -g -1001 bar)..."
+groupmod -g -1001 bar 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "3"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config.txt b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/default/useradd b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/group b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/gshadow b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/login.defs b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/passwd b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/shadow b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/data/groupmod.err b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/data/groupmod.err
new file mode 100644
index 0000000..c9b28d7
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/data/groupmod.err
@@ -0,0 +1,11 @@
+Usage: groupmod [options] GROUP
+
+Options:
+  -g, --gid GID                 change the group ID to GID
+  -h, --help                    display this help message and exit
+  -n, --new-name NEW_GROUP      change the name to NEW_GROUP
+  -o, --non-unique              allow to use a duplicate (non-unique) GID
+  -p, --password PASSWORD       change the password to this (encrypted)
+                                PASSWORD
+  -R, --root CHROOT_DIR         directory to chroot into
+
diff --git a/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/groupmod.test b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/groupmod.test
new file mode 100755
index 0000000..bcfbb64
--- /dev/null
+++ b/tests/grouptools/groupmod/21_groupmod_change_gid_error_no_group/groupmod.test
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks a group parameter was given"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/group.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/group..."
+touch /etc/group.lock
+echo "done"
+
+echo -n "Change GID to 1001 (groupmod -g 1001)..."
+groupmod -g 1001 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+rm -f /etc/group.lock
+
+echo -n "Check returned status ($status)..."
+test "$status" = "2"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/group b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/gshadow b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/login.defs b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/passwd b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/shadow b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/group b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/group
new file mode 100644
index 0000000..4b6a079
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo2:x:1001:
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/gshadow b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/gshadow
new file mode 100644
index 0000000..08d25a2
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo2:*::
diff --git a/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/groupmod.test b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/groupmod.test
new file mode 100755
index 0000000..612ac24
--- /dev/null
+++ b/tests/grouptools/groupmod/22_groupmod_change_gid_and_group_name/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID of a group and the group's name"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID and name of foo to 1001/foo2 (groupmod -g 1001 -n foo2 foo)..."
+groupmod -g 1001 -n foo2 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/group b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/gshadow b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/login.defs b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/passwd b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/passwd
new file mode 100644
index 0000000..dc7bf84
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/passwd
@@ -0,0 +1,20 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
+foo:x:1000:1000:::/bin/false
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/shadow b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/group b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/group
new file mode 100644
index 0000000..e898b8d
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo3:x:1001:
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/gshadow b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/gshadow
new file mode 100644
index 0000000..3c65dec
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo3:toto::
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/passwd b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/passwd
new file mode 100644
index 0000000..9fd396a
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/data/passwd
@@ -0,0 +1,20 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
+foo:x:1000:1001:::/bin/false
diff --git a/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/groupmod.test b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/groupmod.test
new file mode 100755
index 0000000..5f1c0f8
--- /dev/null
+++ b/tests/grouptools/groupmod/23_groupmod_change_gid_and_group_name_and_password/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the GID, the name, and the password of a group"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID, name and password of foo (groupmod -n foo3 -g 1001 -p toto foo)..."
+groupmod -n foo3 -g 1001 -p toto foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl data/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/group b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/gshadow b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/login.defs b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/passwd b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/shadow b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/data/groupmod.err b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/data/groupmod.err
new file mode 100644
index 0000000..3b3400f
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/data/groupmod.err
@@ -0,0 +1,2 @@
+groupmod: existing lock file /etc/gshadow.lock without a PID
+groupmod: cannot lock /etc/gshadow; try again later.
diff --git a/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/groupmod.test b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/groupmod.test
new file mode 100755
index 0000000..a07c6a1
--- /dev/null
+++ b/tests/grouptools/groupmod/24_groupmod_change_gid_and_name_error_locked_gshadow/groupmod.test
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the gshadow file is locked"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/gshadow.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/gshadow..."
+touch /etc/gshadow.lock
+echo "done"
+
+echo -n "Change GID and name of foo to 1001 (groupmod -g 1001 -n bar foo)..."
+groupmod -g 1001 -n bar foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+rm -f /etc/gshadow.lock
+
+echo -n "Check returned status ($status)..."
+test "$status" = "10"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/group b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/gshadow b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/login.defs b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/passwd b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/shadow b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/data/groupmod.err b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/data/groupmod.err
new file mode 100644
index 0000000..5d391a0
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/data/groupmod.err
@@ -0,0 +1,2 @@
+groupmod: existing lock file /etc/passwd.lock without a PID
+groupmod: cannot lock /etc/passwd; try again later.
diff --git a/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/groupmod.test b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/groupmod.test
new file mode 100755
index 0000000..b56d14c
--- /dev/null
+++ b/tests/grouptools/groupmod/25_groupmod_change_gid_change_primary_group_error_locked_passwd/groupmod.test
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the passwd file is locked"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/passwd.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/passwd..."
+touch /etc/passwd.lock
+echo "done"
+
+echo -n "Change GID of foo to 1001 (groupmod -g 1001 foo)..."
+groupmod -g 1001 foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+rm -f /etc/passwd.lock
+
+echo -n "Check returned status ($status)..."
+test "$status" = "10"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/group b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/gshadow b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/login.defs b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/passwd b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/shadow b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/group b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/group
new file mode 100644
index 0000000..75815b9
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+bar:x:1000:
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/gshadow b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/gshadow
new file mode 100644
index 0000000..e814af0
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+bar:*::
diff --git a/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/groupmod.test b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/groupmod.test
new file mode 100755
index 0000000..d0831fd
--- /dev/null
+++ b/tests/grouptools/groupmod/26_groupmod_change_group_name_no_error_locked_passwd/groupmod.test
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the passwd file is locked only if passwd is changed"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config; rm -f /etc/passwd.lock' 0
+
+change_config
+
+echo -n "Create lock file for /etc/passwd..."
+touch /etc/passwd.lock
+echo "done"
+
+echo -n "Change name of foo to bar (groupmod -n bar foo)..."
+groupmod -n bar foo
+echo "OK"
+
+echo -n "Delete lock file for /etc/gshadow..."
+rm -f /etc/passwd.lock
+echo "done"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config.txt b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/default/useradd b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/group b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/gshadow b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/login.defs b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/passwd b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/shadow b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/data/groupmod.err b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/data/groupmod.err
new file mode 100644
index 0000000..70d741a
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/data/groupmod.err
@@ -0,0 +1 @@
+groupmod: invalid group ID '4294967295'
diff --git a/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/groupmod.test b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/groupmod.test
new file mode 100755
index 0000000..6dc895f
--- /dev/null
+++ b/tests/grouptools/groupmod/27_groupmod_change_gid_error_GID_4294967295/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod checks if the specified GID is valid"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change GID of bar to 4294967295 (groupmod -g 4294967295 bar)..."
+groupmod -g 4294967295 bar 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "3"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config.txt b/tests/grouptools/groupmod/28_groupmod_usage/config.txt
new file mode 100644
index 0000000..31f5635
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config.txt
@@ -0,0 +1,10 @@
+# no testsuite password
+# root password: rootF00barbaz
+# myuser password: myuserF00barbaz
+
+user foo, in group users (only in /etc/group)
+user foo, in group tty (only in /etc/gshadow)
+user foo, in group floppy
+user foo, admin of group disk
+user foo, admin and member of group fax
+user foo, admin and member of group cdrom (only in /etc/gshadow)
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config/etc/default/useradd b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config/etc/group b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/group
new file mode 100644
index 0000000..1012390
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/group
@@ -0,0 +1,41 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config/etc/gshadow b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config/etc/passwd b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/config/etc/shadow b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/data/usage.out b/tests/grouptools/groupmod/28_groupmod_usage/data/usage.out
new file mode 100644
index 0000000..c9b28d7
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/data/usage.out
@@ -0,0 +1,11 @@
+Usage: groupmod [options] GROUP
+
+Options:
+  -g, --gid GID                 change the group ID to GID
+  -h, --help                    display this help message and exit
+  -n, --new-name NEW_GROUP      change the name to NEW_GROUP
+  -o, --non-unique              allow to use a duplicate (non-unique) GID
+  -p, --password PASSWORD       change the password to this (encrypted)
+                                PASSWORD
+  -R, --root CHROOT_DIR         directory to chroot into
+
diff --git a/tests/grouptools/groupmod/28_groupmod_usage/groupmod.test b/tests/grouptools/groupmod/28_groupmod_usage/groupmod.test
new file mode 100755
index 0000000..29fe545
--- /dev/null
+++ b/tests/grouptools/groupmod/28_groupmod_usage/groupmod.test
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can display its usage message"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Get groupmod usage (groupmod -h)..."
+groupmod -h >tmp/usage.out
+
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/usage.out
+echo "======================================================================="
+echo -n "Check the usage message..."
+diff -au data/usage.out tmp/usage.out
+echo "usage message OK."
+rm -f tmp/usage.out
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config.txt b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/default/useradd b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/group b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/gshadow b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/login.defs b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/passwd b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/shadow b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/group b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/group
new file mode 100644
index 0000000..75815b9
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+bar:x:1000:
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/gshadow b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/gshadow
new file mode 100644
index 0000000..e814af0
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+bar:*::
diff --git a/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/groupmod.test b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/groupmod.test
new file mode 100755
index 0000000..f899420
--- /dev/null
+++ b/tests/grouptools/groupmod/29_groupmod_-g_same_gid_new_name/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can change the name of a group and keep the same gid"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to bar and keep the same gid (groupmod -n bar -g 1000 foo)..."
+groupmod -n bar -g 1000 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config.txt b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/default/useradd b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/group b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/gshadow b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/login.defs b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/passwd b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/shadow b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/groupmod.test b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/groupmod.test
new file mode 100755
index 0000000..976476c
--- /dev/null
+++ b/tests/grouptools/groupmod/30_groupmod_-g_same_gid_same_name/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can keep the name and gid for a group and does not complain"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Rename group foo to bar and keep the same gid (groupmod -n foo -g 1000 foo)..."
+groupmod -n foo -g 1000 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config.txt b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/default/useradd b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/group b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/gshadow b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/login.defs b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/passwd b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/shadow b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/31_groupmod_-g_same_gid/groupmod.test b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/groupmod.test
new file mode 100755
index 0000000..95262ef
--- /dev/null
+++ b/tests/grouptools/groupmod/31_groupmod_-g_same_gid/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod keeps the same gid and does not complain if there are no other changes"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Keep the same gid and no other changes (groupmod -g 1000 foo)..."
+groupmod -g 1000 foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config.txt b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config.txt
new file mode 100644
index 0000000..31f5635
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config.txt
@@ -0,0 +1,10 @@
+# no testsuite password
+# root password: rootF00barbaz
+# myuser password: myuserF00barbaz
+
+user foo, in group users (only in /etc/group)
+user foo, in group tty (only in /etc/gshadow)
+user foo, in group floppy
+user foo, admin of group disk
+user foo, admin and member of group fax
+user foo, admin and member of group cdrom (only in /etc/gshadow)
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/default/useradd b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/group b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/group
new file mode 100644
index 0000000..1012390
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/group
@@ -0,0 +1,41 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/gshadow b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/passwd b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/shadow b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/data/groupmod.err b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/data/groupmod.err
new file mode 100644
index 0000000..c9b28d7
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/data/groupmod.err
@@ -0,0 +1,11 @@
+Usage: groupmod [options] GROUP
+
+Options:
+  -g, --gid GID                 change the group ID to GID
+  -h, --help                    display this help message and exit
+  -n, --new-name NEW_GROUP      change the name to NEW_GROUP
+  -o, --non-unique              allow to use a duplicate (non-unique) GID
+  -p, --password PASSWORD       change the password to this (encrypted)
+                                PASSWORD
+  -R, --root CHROOT_DIR         directory to chroot into
+
diff --git a/tests/grouptools/groupmod/32_groupmod_-o_without_-g/groupmod.test b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/groupmod.test
new file mode 100755
index 0000000..13d13ee
--- /dev/null
+++ b/tests/grouptools/groupmod/32_groupmod_-o_without_-g/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod -o requires -g"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "groupmod -o -n bar foo..."
+groupmod -o -n bar foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "2"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config.txt b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/default/useradd b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/group b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/gshadow b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/login.defs b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/passwd b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/shadow b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/data/group b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/data/group
new file mode 100644
index 0000000..fafb2ea
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:foopassw:1000:
diff --git a/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/groupmod.test b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/groupmod.test
new file mode 100755
index 0000000..44597ad
--- /dev/null
+++ b/tests/grouptools/groupmod/33_groupmod_set_password_no_gshadow_file_with_group_pwd_x/groupmod.test
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo "Remove the gshadow file"
+rm -f /etc/gshadow
+
+echo -n "Change GID of foo to 1001 (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+test ! -f /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config.txt b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/default/useradd b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/group b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/group
new file mode 100644
index 0000000..7c2b4e8
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:oldpass:1000:
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/gshadow b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/login.defs b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/passwd b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/shadow b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/group b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/group
new file mode 100644
index 0000000..fafb2ea
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:foopassw:1000:
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/gshadow b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/gshadow
new file mode 100644
index 0000000..601bd46
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:foopassw::
diff --git a/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/groupmod.test b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/groupmod.test
new file mode 100755
index 0000000..a765f4d
--- /dev/null
+++ b/tests/grouptools/groupmod/34_groupmod_set_password_group_without_shadow_pwd/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change password of foo (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config.txt b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/default/useradd b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/group b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/group
new file mode 100644
index 0000000..7c2b4e8
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:oldpass:1000:
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/gshadow b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/login.defs b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/passwd b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/shadow b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/data/group b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/data/group
new file mode 100644
index 0000000..fafb2ea
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/data/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:foopassw:1000:
diff --git a/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/groupmod.test b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/groupmod.test
new file mode 100755
index 0000000..1e2303c
--- /dev/null
+++ b/tests/grouptools/groupmod/35_groupmod_set_password_group_without_shadow_pwd_no_gshadow_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change password of foo (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl data/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config.txt b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/default/useradd b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/default/useradd
new file mode 100644
index 0000000..31c44ab
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/default/useradd
@@ -0,0 +1,36 @@
+# Default values for useradd(8)
+#
+# The SHELL variable specifies the default login shell on your
+# system.
+# Similar to DHSELL in adduser. However, we use "sh" here because
+# useradd is a low level utility and should be as general
+# as possible
+SHELL=/bin/foobar
+#
+# The default group for users
+# 100=users on Debian systems
+# Same as USERS_GID in adduser
+# This argument is used when the -n flag is specified.
+# The default behavior (when -n and -g are not specified) is to create a
+# primary user group with the same name as the user being added to the
+# system.
+GROUP=10
+#
+# The default home directory. Same as DHOME for adduser
+HOME=/tmp
+#
+# The number of days after a password expires until the account 
+# is permanently disabled
+INACTIVE=12
+#
+# The default expire date
+EXPIRE=2007-12-02
+#
+# The SKEL variable specifies the directory containing "skeletal" user
+# files; in other words, files such as a sample .profile that will be
+# copied to the new user's home directory when it is created.
+# SKEL=/etc/skel
+#
+# Defines whether the mail spool should be created while
+# creating the account
+# CREATE_MAIL_SPOOL=yes
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/group b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/gshadow b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/gshadow
new file mode 100644
index 0000000..ae42486
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/gshadow
@@ -0,0 +1,41 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/login.defs b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/passwd b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/shadow b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/data/gshadow b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/data/gshadow
new file mode 100644
index 0000000..601bd46
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/data/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:foopassw::
diff --git a/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/groupmod.test b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/groupmod.test
new file mode 100755
index 0000000..c2a0b6b
--- /dev/null
+++ b/tests/grouptools/groupmod/36_groupmod_set_password_group_with_shadow_pwd_no_gshadow_group/groupmod.test
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod can set the password of a group (no gshadow file)"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Change password of foo (groupmod -p foopassw foo)..."
+groupmod -p foopassw foo
+echo "OK"
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl data/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config.txt b/tests/grouptools/groupmod/37_groupmod_invalid_option/config.txt
new file mode 100644
index 0000000..e9e4bbe
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config.txt
@@ -0,0 +1 @@
+group foo, GID 1000
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/group b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/group
new file mode 100644
index 0000000..fecba0c
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/group
@@ -0,0 +1,42 @@
+root:x:0:
+daemon:x:1:
+bin:x:2:
+sys:x:3:
+adm:x:4:
+tty:x:5:
+disk:x:6:
+lp:x:7:
+mail:x:8:
+news:x:9:
+uucp:x:10:
+man:x:12:
+proxy:x:13:
+kmem:x:15:
+dialout:x:20:
+fax:x:21:
+voice:x:22:
+cdrom:x:24:
+floppy:x:25:
+tape:x:26:
+sudo:x:27:
+audio:x:29:
+dip:x:30:
+www-data:x:33:
+backup:x:34:
+operator:x:37:
+list:x:38:
+irc:x:39:
+src:x:40:
+gnats:x:41:
+shadow:x:42:
+utmp:x:43:
+video:x:44:
+sasl:x:45:
+plugdev:x:46:
+staff:x:50:
+games:x:60:
+users:x:100:
+nogroup:x:65534:
+crontab:x:101:
+Debian-exim:x:102:
+foo:x:1000:
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/gshadow b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/gshadow
new file mode 100644
index 0000000..5042e58
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/gshadow
@@ -0,0 +1,42 @@
+root:*::
+daemon:*::
+bin:*::
+sys:*::
+adm:*::
+tty:*::
+disk:*::
+lp:*::
+mail:*::
+news:*::
+uucp:*::
+man:*::
+proxy:*::
+kmem:*::
+dialout:*::
+fax:*::
+voice:*::
+cdrom:*::
+floppy:*::
+tape:*::
+sudo:*::
+audio:*::
+dip:*::
+www-data:*::
+backup:*::
+operator:*::
+list:*::
+irc:*::
+src:*::
+gnats:*::
+shadow:*::
+utmp:*::
+video:*::
+sasl:*::
+plugdev:*::
+staff:*::
+games:*::
+users:*::
+nogroup:*::
+crontab:x::
+Debian-exim:x::
+foo:*::
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/login.defs b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/login.defs
new file mode 100644
index 0000000..84fb3cc
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/login.defs
@@ -0,0 +1,315 @@
+#
+# /etc/login.defs - Configuration control definitions for the login package.
+#
+# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
+# If unspecified, some arbitrary (and possibly incorrect) value will
+# be assumed.  All other items are optional - if not specified then
+# the described action or option will be inhibited.
+#
+# Comment lines (lines beginning with "#") and blank lines are ignored.
+#
+# Modified for Linux.  --marekm
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable logging and display of /var/log/faillog login failure info.
+# This option conflicts with the pam_tally PAM module.
+#
+FAILLOG_ENAB		yes
+
+#
+# Enable display of unknown usernames when login failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable. 
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		no
+
+#
+# Enable "syslog" logging of su activity - in addition to sulog file logging.
+# SYSLOG_SG_ENAB does the same for newgrp and sg.
+#
+SYSLOG_SU_ENAB		yes
+SYSLOG_SG_ENAB		yes
+
+#
+# If defined, all su activity is logged to this file.
+#
+#SULOG_FILE	/var/log/sulog
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format something like "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, login failures will be logged here in a utmp format
+# last, when invoked as lastb, will read /var/log/btmp, so...
+#
+FTMP_FILE	/var/log/btmp
+
+#
+# If defined, the command name to display when running "su -".  For
+# example, if this is defined as "su" then a "ps" will display the
+# command is "-su".  If not defined, then "ps" would display the
+# name of the shell actually being run, e.g. something like "-sh".
+#
+SU_NAME		su
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/games
+
+#
+# Terminal permissions
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+# If you have a "write" program which is "setgid" to a special group
+# which owns the terminals, define TTYGROUP to the group number and
+# TTYPERM to 0620.  Otherwise leave TTYGROUP commented out and assign
+# TTYPERM to either 622 or 600.
+#
+# In Debian /usr/bin/bsd-write or similar programs are setgid tty
+# However, the default and recommended value for TTYPERM is still 0600
+# to not allow anyone to write to anyone else console or terminal
+
+# Users can still allow other people to write them by issuing 
+# the "mesg y" command.
+
+TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#	UMASK		Default "umask" value.
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+# 
+# UMASK usage is discouraged because it catches only some classes of user
+# entries to system, in fact only those made through login(1), while setting
+# umask in shell rc file will catch also logins through su, cron, ssh etc.
+#
+# At the same time, using shell rc to set umask won't catch entries which use
+# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
+# user and alike.
+#
+# Therefore the use of pam_umask is recommended (Debian package libpam-umask)
+# as the solution which catches all these cases on PAM-enabled systems.
+# 
+# This avoids the confusion created by having the umask set
+# in two different places -- in login.defs and shell rc files (i.e.
+# /etc/profile).
+#
+# For discussion, see #314539 and #248150 as well as the thread starting at
+# http://lists.debian.org/debian-devel/2005/06/msg01598.html
+#
+# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
+#
+ERASECHAR	0177
+KILLCHAR	025
+# 022 is the "historical" value in Debian for UMASK when it was used
+# 027, or even 077, could be considered better for privacy
+# There is no One True Answer here : each sysadmin must make up his/her
+# mind.
+#UMASK		022
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	99999
+PASS_MIN_DAYS	0
+PASS_WARN_AGE	7
+
+#
+# Min/max values for automatic uid selection in useradd
+#
+UID_MIN			 1000
+UID_MAX			60000
+
+#
+# Min/max values for automatic gid selection in groupadd
+#
+GID_MIN			  100
+GID_MAX			60000
+
+#
+# Max number of login retries if password is bad. This will most likely be
+# overriden by PAM, since the default pam_unix module has it's own built
+# in of 3 retries. However, this is a safe fallback in case you are using
+# an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login
+#
+LOGIN_TIMEOUT		60
+
+#
+# Which fields may be changed by regular users using chfn - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+# 
+CHFN_RESTRICT		rwh
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default in no.
+#
+DEFAULT_HOME	yes
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# This enables userdel to remove user groups if no members exist.
+#
+# Other former uses of this variable such as setting the umask when
+# user==primary group are not used in PAM environments, thus in Debian
+#
+USERGROUPS_ENAB yes
+
+#
+# Instead of the real user shell, the program specified by this parameter
+# will be launched, although its visible name (argv[0]) will be the shell's.
+# The program may do whatever it wants (logging, additional authentification,
+# banner, ...) before running the actual shell.
+#
+# FAKE_SHELL /bin/fakeshell
+
+#
+# If defined, either full pathname of a file containing device names or
+# a ":" delimited list of device names.  Root logins will be allowed only
+# upon these devices.
+#
+# This variable is used by login and su.
+#
+#CONSOLE	/etc/consoles
+#CONSOLE	console:tty01:tty02:tty03:tty04
+
+#
+# List of groups to add to the user's supplementary group set
+# when logging in on the console (as determined by the CONSOLE
+# setting).  Default is none.
+#
+# Use with caution - it is possible for users to gain permanent
+# access to these groups, even when not logged in on the console.
+# How to do it is left as an exercise for the reader...
+#
+# This variable is used by login and su.
+#
+#CONSOLE_GROUPS		floppy:audio:cdrom
+
+#
+# Only works if compiled with MD5_CRYPT defined:
+# If set to "yes", new passwords will be encrypted using the MD5-based
+# algorithm compatible with the one used by recent releases of FreeBSD.
+# It supports passwords of unlimited length and longer salt strings.
+# Set to "no" if you need to copy encrypted passwords to other systems
+# which don't understand the new algorithm.  Default is "no".
+#
+# This variable is used by chpasswd, gpasswd and newusers.
+#
+#MD5_CRYPT_ENAB	no
+
+################# OBSOLETED BY PAM ##############
+#						#
+# These options are now handled by PAM. Please	#
+# edit the appropriate file in /etc/pam.d/ to	#
+# enable the equivelants of them.
+#
+###############
+
+#MOTD_FILE
+#DIALUPS_CHECK_ENAB
+#LASTLOG_ENAB
+#MAIL_CHECK_ENAB
+#OBSCURE_CHECKS_ENAB
+#PORTTIME_CHECKS_ENAB
+#SU_WHEEL_ONLY
+#CRACKLIB_DICTPATH
+#PASS_CHANGE_TRIES
+#PASS_ALWAYS_WARN
+#ENVIRON_FILE
+#NOLOGINS_FILE
+#ISSUE_FILE
+#PASS_MIN_LEN
+#PASS_MAX_LEN
+#ULIMIT
+#ENV_HZ
+#CHFN_AUTH
+#CHSH_AUTH
+#FAIL_DELAY
+
+################# OBSOLETED #######################
+#						  #
+# These options are no more handled by shadow.    #
+#                                                 #
+# Shadow utilities will display a warning if they #
+# still appear.                                   #
+#                                                 #
+###################################################
+
+# CLOSE_SESSIONS
+# LOGIN_STRING
+# NO_PASSWORD_CONSOLE
+# QMAIL_DIR
+
+
+
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/passwd b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/passwd
new file mode 100644
index 0000000..43fc135
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/passwd
@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/bin/sh
+bin:x:2:2:bin:/bin:/bin/sh
+sys:x:3:3:sys:/dev:/bin/sh
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/bin/sh
+man:x:6:12:man:/var/cache/man:/bin/sh
+lp:x:7:7:lp:/var/spool/lpd:/bin/sh
+mail:x:8:8:mail:/var/mail:/bin/sh
+news:x:9:9:news:/var/spool/news:/bin/sh
+uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
+proxy:x:13:13:proxy:/bin:/bin/sh
+www-data:x:33:33:www-data:/var/www:/bin/sh
+backup:x:34:34:backup:/var/backups:/bin/sh
+list:x:38:38:Mailing List Manager:/var/list:/bin/sh
+irc:x:39:39:ircd:/var/run/ircd:/bin/sh
+gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
+nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
+Debian-exim:x:102:102::/var/spool/exim4:/bin/false
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/shadow b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/shadow
new file mode 100644
index 0000000..5f50d18
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/config/etc/shadow
@@ -0,0 +1,19 @@
+root:$1$NBLBLIXb$WUgojj1bNuxWEADQGt1m9.:12991:0:99999:7:::
+daemon:*:12977:0:99999:7:::
+bin:*:12977:0:99999:7:::
+sys:*:12977:0:99999:7:::
+sync:*:12977:0:99999:7:::
+games:*:12977:0:99999:7:::
+man:*:12977:0:99999:7:::
+lp:*:12977:0:99999:7:::
+mail:*:12977:0:99999:7:::
+news:*:12977:0:99999:7:::
+uucp:*:12977:0:99999:7:::
+proxy:*:12977:0:99999:7:::
+www-data:*:12977:0:99999:7:::
+backup:*:12977:0:99999:7:::
+list:*:12977:0:99999:7:::
+irc:*:12977:0:99999:7:::
+gnats:*:12977:0:99999:7:::
+nobody:*:12977:0:99999:7:::
+Debian-exim:!:12977:0:99999:7:::
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/data/groupmod.err b/tests/grouptools/groupmod/37_groupmod_invalid_option/data/groupmod.err
new file mode 100644
index 0000000..6bec2e0
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/data/groupmod.err
@@ -0,0 +1,12 @@
+groupmod: invalid option -- 'Z'
+Usage: groupmod [options] GROUP
+
+Options:
+  -g, --gid GID                 change the group ID to GID
+  -h, --help                    display this help message and exit
+  -n, --new-name NEW_GROUP      change the name to NEW_GROUP
+  -o, --non-unique              allow to use a duplicate (non-unique) GID
+  -p, --password PASSWORD       change the password to this (encrypted)
+                                PASSWORD
+  -R, --root CHROOT_DIR         directory to chroot into
+
diff --git a/tests/grouptools/groupmod/37_groupmod_invalid_option/groupmod.test b/tests/grouptools/groupmod/37_groupmod_invalid_option/groupmod.test
new file mode 100755
index 0000000..23c394f
--- /dev/null
+++ b/tests/grouptools/groupmod/37_groupmod_invalid_option/groupmod.test
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../../common/config.sh
+. ../../../common/log.sh
+
+log_start "$0" "groupmod reports usage when called with an invalid option"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Call groupmod with an invalid option (groupmod -Z bar -g 1000 foo)..."
+groupmod -Z bar -g 1000 foo 2>tmp/groupmod.err && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "2"
+echo "OK"
+
+echo "groupmod reported:"
+echo "======================================================================="
+cat tmp/groupmod.err
+echo "======================================================================="
+echo -n "Check that there were a failure message..."
+diff -au data/groupmod.err tmp/groupmod.err
+echo "error message OK."
+rm -f tmp/groupmod.err
+
+echo -n "Check the passwd file..."
+../../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+