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-rwxr-xr-xtests/df/df-P.sh37
-rwxr-xr-xtests/df/df-output.sh140
-rwxr-xr-xtests/df/df-symlink.sh44
-rwxr-xr-xtests/df/header.sh28
-rwxr-xr-xtests/df/no-mtab-status.sh125
-rwxr-xr-xtests/df/over-mount-device.sh59
-rwxr-xr-xtests/df/problematic-chars.sh46
-rwxr-xr-xtests/df/skip-duplicates.sh191
-rwxr-xr-xtests/df/skip-rootfs.sh53
-rwxr-xr-xtests/df/total-unprocessed.sh44
-rwxr-xr-xtests/df/total-verify.sh67
-rwxr-xr-xtests/df/unreadable.sh32
12 files changed, 866 insertions, 0 deletions
diff --git a/tests/df/df-P.sh b/tests/df/df-P.sh
new file mode 100755
index 0000000..ea82610
--- /dev/null
+++ b/tests/df/df-P.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# Ensure that df -P is not affected by BLOCK_SIZE settings
+
+# Copyright (C) 2007-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+
+
+ df -P . > t1 || fail=1
+BLOCK_SIZE=1M df -P . > t2 || fail=1
+
+# Since disk utilization may be changing, compare only df's header line.
+# That records the block size. E.g., for "1M", it would be:
+# Filesystem 1048576-blocks Used Available Capacity Mounted on
+# while for 1K, it would be
+# Filesystem 1024-blocks Used Available Capacity Mounted on
+
+head -n1 t1 > exp || fail=1
+head -n1 t2 > out || fail=1
+
+compare exp out || fail=1
+
+Exit $fail
diff --git a/tests/df/df-output.sh b/tests/df/df-output.sh
new file mode 100755
index 0000000..e8591e8
--- /dev/null
+++ b/tests/df/df-output.sh
@@ -0,0 +1,140 @@
+#!/bin/sh
+# Exercise df's --output option.
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+
+# Ensure that --output is mutually exclusive with -i, -P, and -T.
+# Ensure that this limitation is not depending on the order of options.
+cat <<\EOF > exp || framework_failure_
+df: options OPT and --output are mutually exclusive
+Try 'df --help' for more information.
+EOF
+
+df -i --output '.' 2>out && fail=1
+sed 's/ -i / OPT /' out > out2
+compare exp out2 || fail=1
+
+df --output -i '.' 2>out && fail=1
+sed 's/ -i / OPT /' out > out2
+compare exp out2 || fail=1
+
+df -P --output '.' 2>out && fail=1
+sed 's/ -P / OPT /' out > out2
+compare exp out2 || fail=1
+
+df --output -P '.' 2>out && fail=1
+sed 's/ -P / OPT /' out > out2
+compare exp out2 || fail=1
+
+df -T --output '.' 2>out && fail=1
+sed 's/ -T / OPT /' out > out2
+compare exp out2 || fail=1
+
+df --output -T '.' 2>out && fail=1
+sed 's/ -T / OPT /' out > out2
+compare exp out2 || fail=1
+
+# Ensure that each field is only used once for the --output argument.
+cat <<\EOF > exp || framework_failure_
+df: option --output: field 'target' used more than once
+Try 'df --help' for more information.
+EOF
+
+df --output=target,source,target '.' 2>out && fail=1
+compare exp out || fail=1
+
+# Ensure that this limitation also works for splitted --output options.
+df --out=target,source --out=target '.' 2>out && fail=1
+compare exp out || fail=1
+
+# Ensure that the full output includes all fields, and
+# that --o (without argument) is identical to the full list.
+
+cat <<\EOF > exp || framework_failure_
+Filesystem Type Inodes IUsed IFree IUse% Size Used Avail Use% File Mounted on
+EOF
+
+df -h --o=source,fstype,itotal,iused,iavail,ipcent \
+ --o=size,used,avail,pcent,file,target '.' >out || fail=1
+sed -e '1 {
+ s/ [ ]*/ /g
+ q
+ }' out > out2
+compare exp out2 || fail=1
+
+df -h --output '.' >out || fail=1
+sed -e '1 {
+ s/ [ ]*/ /g
+ q
+ }' out > out2
+compare exp out2 || fail=1
+
+# Ensure that --output indicates the block size
+# when not using --human-readable
+cat <<\EOF > exp || framework_failure_
+1K-blocks
+EOF
+
+df -B1K --output=size '.' >out || fail=1
+sed -e '1 {
+ s/ *//
+ q
+ }' out > out2
+compare exp out2 || fail=1
+
+# Ensure that the grand total line now contains a "-" in the TARGET field ...
+cat <<\EOF > exp || framework_failure_
+-
+EOF
+
+df --output=source,target --total '.' >out || fail=1
+sed -n -e '3 {
+ s/^total[ ]*//
+ p
+ q
+ }' out > out2
+compare exp out2 || fail=1
+
+# ... but it should read "total" if there is no SOURCE field.
+cat <<\EOF > exp || framework_failure_
+total
+EOF
+
+df --output=target --total '.' >out || fail=1
+sed -n -e '3 {
+ p
+ q
+ }' out > out2
+compare exp out2 || fail=1
+
+# Ensure that --output is mentioned in the usage.
+df --help > out || fail=1
+grep ' --output' out >/dev/null || { fail=1; cat out; }
+
+# Ensure that the FILE field contains the argument.
+cat <<\EOF > exp || framework_failure_
+.
+exp
+EOF
+
+df --output=file '.' exp >out || fail=1
+sed '1d' out > out2
+compare exp out2 || fail=1
+
+Exit $fail
diff --git a/tests/df/df-symlink.sh b/tests/df/df-symlink.sh
new file mode 100755
index 0000000..4047256
--- /dev/null
+++ b/tests/df/df-symlink.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+# Ensure that df dereferences symlinks to disk nodes
+
+# Copyright (C) 2013-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+
+disk=$(df --out=source '.' | tail -n1) ||
+ skip_ "cannot determine '.' file system"
+
+ln -s "$disk" symlink || framework_failure_
+
+df --out=source,target "$disk" > exp || skip_ "cannot get info for $disk"
+df --out=source,target symlink > out || fail=1
+compare exp out || fail=1
+
+# Ensure we output the same values for device nodes and '.'
+# This was not the case in coreutil-8.22 on systems
+# where the device in the mount list was a symlink itself.
+# I.e., '.' => /dev/mapper/fedora-home -> /dev/dm-2
+# Restrict this test to systems with a 1:1 mapping between
+# source and target. This excludes for example BTRFS sub-volumes.
+if test "$(df --output=source | grep -F "$disk" | wc -l)" = 1; then
+ df --out=source,target '.' > out || fail=1
+ compare exp out || fail=1
+fi
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
diff --git a/tests/df/header.sh b/tests/df/header.sh
new file mode 100755
index 0000000..38a3c6f
--- /dev/null
+++ b/tests/df/header.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+# Ensure that "df ." outputs a header.
+
+# Copyright (C) 2006-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+
+case $(df .) in
+*'
+'*) ;;
+*) fail=1;;
+esac
+
+Exit $fail
diff --git a/tests/df/no-mtab-status.sh b/tests/df/no-mtab-status.sh
new file mode 100755
index 0000000..e2568eb
--- /dev/null
+++ b/tests/df/no-mtab-status.sh
@@ -0,0 +1,125 @@
+#!/bin/sh
+# Test df's behaviour when the mount list cannot be read.
+# This test is skipped on systems that lack LD_PRELOAD support; that's fine.
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_gcc_shared_
+
+# Protect against inaccessible remote mounts etc.
+timeout 10 df || skip_ "df fails"
+
+grep '^#define HAVE_MNTENT_H 1' $CONFIG_HEADER > /dev/null \
+ || skip_ "no mntent.h available to confirm the interface"
+
+grep '^#define HAVE_GETMNTENT 1' $CONFIG_HEADER > /dev/null \
+ || skip_ "getmntent is not used on this system"
+
+# Simulate "mtab" failure.
+cat > k.c <<EOF || framework_failure_
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <mntent.h>
+#include <string.h>
+#include <dlfcn.h>
+
+#define STREQ(a, b) (strcmp (a, b) == 0)
+
+FILE* fopen(const char *path, const char *mode)
+{
+ static FILE* (*fopen_func)(char const *, char const *);
+
+ /* get reference to original (libc provided) fopen */
+ if (!fopen_func)
+ {
+ fopen_func = (FILE*(*)(char const *, char const *))
+ dlsym(RTLD_NEXT, "fopen");
+ if (!fopen_func)
+ {
+ fprintf (stderr, "Failed to find fopen()\n");
+ errno = ESRCH;
+ return NULL;
+ }
+ }
+
+ /* Returning ENOENT here will get read_file_system_list()
+ to fall back to using getmntent() below. */
+ if (STREQ (path, "/proc/self/mountinfo"))
+ {
+ errno = ENOENT;
+ return NULL;
+ }
+ else
+ return fopen_func(path, mode);
+}
+
+struct mntent *getmntent (FILE *fp)
+{
+ /* Prove that LD_PRELOAD works. */
+ static int done = 0;
+ if (!done)
+ {
+ fclose (fopen ("x", "w"));
+ ++done;
+ }
+ /* Now simulate the failure. */
+ errno = ENOENT;
+ return NULL;
+}
+EOF
+
+# Then compile/link it:
+gcc_shared_ k.c k.so \
+ || framework_failure_ 'failed to build shared library'
+
+cleanup_() { unset LD_PRELOAD; }
+
+export LD_PRELOAD=$LD_PRELOAD:./k.so
+
+# Test if LD_PRELOAD works:
+df 2>/dev/null
+test -f x || skip_ "internal test failure: maybe LD_PRELOAD doesn't work?"
+
+# These tests are supposed to succeed:
+df '.' || fail=1
+df -i '.' || fail=1
+df -T '.' || fail=1
+df -Ti '.' || fail=1
+df --total '.' || fail=1
+
+# These tests are supposed to fail:
+returns_ 1 df || fail=1
+returns_ 1 df -i || fail=1
+returns_ 1 df -T || fail=1
+returns_ 1 df -Ti || fail=1
+returns_ 1 df --total || fail=1
+
+returns_ 1 df -a || fail=1
+returns_ 1 df -a '.' || fail=1
+
+returns_ 1 df -l || fail=1
+returns_ 1 df -l '.' || fail=1
+
+returns_ 1 df -t hello || fail=1
+returns_ 1 df -t hello '.' || fail=1
+
+returns_ 1 df -x hello || fail=1
+returns_ 1 df -x hello '.' || fail=1
+
+Exit $fail
diff --git a/tests/df/over-mount-device.sh b/tests/df/over-mount-device.sh
new file mode 100755
index 0000000..3bee9bd
--- /dev/null
+++ b/tests/df/over-mount-device.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+# Ensure that df /dev/loop0 errors out if overmounted by another device
+
+# Copyright (C) 2014-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_root_
+
+cwd=$(pwd)
+cleanup_() { cd /; umount "$cwd/mnt"; umount "$cwd/mnt"; }
+
+skip=0
+
+# Create 2 file systems
+for i in 1 2; do
+ dd if=/dev/zero of=blob$i bs=8192 count=200 > /dev/null 2>&1 \
+ || skip=1
+ mkfs -t ext2 -F blob$i \
+ || skip_ "failed to create ext2 file system"
+done
+
+# Mount both at the same place (eclipsing the first)
+mkdir mnt || skip=1
+mount -oloop blob1 mnt || skip=1
+eclipsed_dev=$(df --o=source mnt | tail -n1) || skip=1
+mount -oloop blob2 mnt || skip=1
+
+test $skip = 1 \
+ && skip_ "insufficient mount/ext2 support"
+
+df . || skip_ "failed to lookup the device for the current dir"
+
+echo "df: cannot access '$eclipsed_dev': over-mounted by another device" > exp
+
+# We should get an error for the eclipsed device and continue
+df $eclipsed_dev . > out 2> err && fail=1
+
+# header and single entry in output
+test $(wc -l < out) = 2 || fail=1
+
+compare exp err || fail=1
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
diff --git a/tests/df/problematic-chars.sh b/tests/df/problematic-chars.sh
new file mode 100755
index 0000000..6cedad5
--- /dev/null
+++ b/tests/df/problematic-chars.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+# Ensure that df outputs one line per entry
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_root_
+
+mnt='mount
+point'
+
+cwd=$(pwd)
+cleanup_() { cd /; umount "$cwd/$mnt"; }
+
+skip=0
+# Create a file system, then mount it.
+dd if=/dev/zero of=blob bs=8192 count=200 > /dev/null 2>&1 \
+ || skip=1
+mkdir "$mnt" || skip=1
+mkfs -t ext2 -F blob \
+ || skip_ "failed to create ext2 file system"
+
+mount -oloop blob "$mnt" || skip=1
+
+test $skip = 1 \
+ && skip_ "insufficient mount/ext2 support"
+
+test $(df "$mnt" | wc -l) = 2 || fail=1
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
diff --git a/tests/df/skip-duplicates.sh b/tests/df/skip-duplicates.sh
new file mode 100755
index 0000000..47a60ee
--- /dev/null
+++ b/tests/df/skip-duplicates.sh
@@ -0,0 +1,191 @@
+#!/bin/sh
+# Test df's behavior when the mount list contains duplicate entries.
+# This test is skipped on systems that lack LD_PRELOAD support; that's fine.
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_gcc_shared_
+
+# We use --local here so as to not activate
+# potentially very many remote mounts.
+df --local --output=target >LOCAL_FS || skip_ 'df fails'
+grep '^/$' LOCAL_FS || skip_ 'no root file system found'
+
+# Get real targets to substitute for /NONROOT and /REMOTE below.
+export CU_NONROOT_FS=$(grep /. LOCAL_FS | head -n1)
+export CU_REMOTE_FS=$(grep /. LOCAL_FS | tail -n+2 | head -n1)
+
+unique_entries=1
+test -z "$CU_NONROOT_FS" || unique_entries=$(expr $unique_entries + 1)
+test -z "$CU_REMOTE_FS" || unique_entries=$(expr $unique_entries + 2)
+
+grep '^#define HAVE_MNTENT_H 1' $CONFIG_HEADER > /dev/null \
+ || skip_ "no mntent.h available to confirm the interface"
+
+grep '^#define HAVE_GETMNTENT 1' $CONFIG_HEADER > /dev/null \
+ || skip_ "getmntent is not used on this system"
+
+# Simulate an mtab file to test various cases.
+cat > k.c <<EOF || framework_failure_
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <mntent.h>
+#include <string.h>
+#include <dlfcn.h>
+
+#define STREQ(a, b) (strcmp (a, b) == 0)
+
+FILE* fopen(const char *path, const char *mode)
+{
+ static FILE* (*fopen_func)(char const *, char const *);
+
+ /* get reference to original (libc provided) fopen */
+ if (!fopen_func)
+ {
+ fopen_func = (FILE*(*)(char const *, char const *))
+ dlsym(RTLD_NEXT, "fopen");
+ if (!fopen_func)
+ {
+ fprintf (stderr, "Failed to find fopen()\n");
+ errno = ESRCH;
+ return NULL;
+ }
+ }
+
+ /* Returning ENOENT here will get read_file_system_list()
+ to fall back to using getmntent() below. */
+ if (STREQ (path, "/proc/self/mountinfo"))
+ {
+ errno = ENOENT;
+ return NULL;
+ }
+ else
+ return fopen_func(path, mode);
+}
+
+#define STREQ(a, b) (strcmp (a, b) == 0)
+
+struct mntent *getmntent (FILE *fp)
+{
+ static char *nonroot_fs;
+ static char *remote_fs;
+ static int done;
+
+ /* Prove that LD_PRELOAD works. */
+ if (!done)
+ {
+ fclose (fopen ("x", "w"));
+ ++done;
+ }
+
+ static struct mntent mntents[] = {
+ {.mnt_fsname="/short", .mnt_dir="/invalid/mount/dir", .mnt_opts=""},
+ {.mnt_fsname="fsname", .mnt_dir="/", .mnt_opts=""},
+ {.mnt_fsname="/fsname", .mnt_dir="/.", .mnt_opts=""},
+ {.mnt_fsname="/fsname", .mnt_dir="/", .mnt_opts=""},
+ {.mnt_fsname="virtfs", .mnt_dir="/NONROOT", .mnt_type="t1", .mnt_opts=""},
+ {.mnt_fsname="virtfs2", .mnt_dir="/NONROOT", .mnt_type="t2", .mnt_opts=""},
+ {.mnt_fsname="netns", .mnt_dir="net:[1234567]", .mnt_opts=""},
+ {.mnt_fsname="rem:ote1",.mnt_dir="/REMOTE", .mnt_opts=""},
+ {.mnt_fsname="rem:ote1",.mnt_dir="/REMOTE", .mnt_opts=""},
+ {.mnt_fsname="rem:ote2",.mnt_dir="/REMOTE", .mnt_opts=""},
+ };
+
+ if (done == 1)
+ {
+ nonroot_fs = getenv ("CU_NONROOT_FS");
+ if (!nonroot_fs || !*nonroot_fs)
+ nonroot_fs = "/"; /* merge into / entries. */
+
+ remote_fs = getenv ("CU_REMOTE_FS");
+ }
+
+ if (done == 1 && !getenv ("CU_TEST_DUPE_INVALID"))
+ done++; /* skip the first entry. */
+
+ while (done++ <= 10)
+ {
+ if (!mntents[done-2].mnt_type)
+ mntents[done-2].mnt_type = "-";
+ if (!mntents[done-2].mnt_opts)
+ mntents[done-2].mnt_opts = "-";
+ if (STREQ (mntents[done-2].mnt_dir, "/NONROOT"))
+ mntents[done-2].mnt_dir = nonroot_fs;
+ if (STREQ (mntents[done-2].mnt_dir, "/REMOTE"))
+ {
+ if (!remote_fs || !*remote_fs)
+ continue;
+ else
+ mntents[done-2].mnt_dir = remote_fs;
+ }
+ return &mntents[done-2];
+ }
+
+ return NULL;
+}
+EOF
+
+# Then compile/link it:
+gcc_shared_ k.c k.so \
+ || framework_failure_ 'failed to build shared library'
+
+# Test if LD_PRELOAD works:
+LD_PRELOAD=$LD_PRELOAD:./k.so df
+test -f x || skip_ "internal test failure: maybe LD_PRELOAD doesn't work?"
+
+# The fake mtab file should only contain entries
+# having the same device number; thus the output should
+# consist of a header and unique entries.
+LD_PRELOAD=$LD_PRELOAD:./k.so df -T >out || fail=1
+test $(wc -l <out) -eq $(expr 1 + $unique_entries) || { fail=1; cat out; }
+
+# With --total we should suppress the duplicate but separate remote file system
+LD_PRELOAD=$LD_PRELOAD:./k.so df --total >out || fail=1
+test "$CU_REMOTE_FS" && elide_remote=1 || elide_remote=0
+test $(wc -l <out) -eq $(expr 2 + $unique_entries - $elide_remote) ||
+ { fail=1; cat out; }
+
+# Ensure we don't fail when unable to stat (currently) unavailable entries
+LD_PRELOAD=$LD_PRELOAD:./k.so CU_TEST_DUPE_INVALID=1 df -T >out || fail=1
+test $(wc -l <out) -eq $(expr 1 + $unique_entries) || { fail=1; cat out; }
+
+# df should also prefer "/fsname" over "fsname"
+if test "$unique_entries" = 2; then
+ test $(grep -c '/fsname' <out) -eq 1 || { fail=1; cat out; }
+ # ... and "/fsname" with '/' as Mounted on over '/.'
+ test $(grep -cF '/.' <out) -eq 0 || { fail=1; cat out; }
+fi
+
+# df should use the last seen devname (mnt_fsname) and devtype (mnt_type)
+test $(grep -c 'virtfs2.*t2' <out) -eq 1 || { fail=1; cat out; }
+
+# Ensure that filtering duplicates does not affect -a processing.
+LD_PRELOAD=$LD_PRELOAD:./k.so df -a >out || fail=1
+total_fs=6; test "$CU_REMOTE_FS" && total_fs=$(expr $total_fs + 3)
+test $(wc -l <out) -eq $total_fs || { fail=1; cat out; }
+# Ensure placeholder "-" values used for the eclipsed "virtfs"
+test $(grep -c 'virtfs *-' <out) -eq 1 || { fail=1; cat out; }
+
+# Ensure that filtering duplicates does not affect
+# argument processing (now without the fake getmntent()).
+df '.' '.' >out || fail=1
+test $(wc -l <out) -eq 3 || { fail=1; cat out; }
+
+Exit $fail
diff --git a/tests/df/skip-rootfs.sh b/tests/df/skip-rootfs.sh
new file mode 100755
index 0000000..05aa3a2
--- /dev/null
+++ b/tests/df/skip-rootfs.sh
@@ -0,0 +1,53 @@
+#!/bin/sh
+# Test df's behavior for skipping the pseudo "rootfs" file system.
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+
+# Protect against inaccessible remote mounts etc.
+timeout 10 df || skip_ "df fails"
+
+# Verify that rootfs is in mtab (and shown when the -a option is specified).
+# Note this is the case when /proc/self/mountinfo is parsed
+# rather than /proc/mounts. I.e., when libmount is being used.
+df -a >out || fail=1
+grep '^rootfs' out || skip_ 'no rootfs in mtab'
+
+# Ensure that rootfs is suppressed when no options is specified.
+df >out || fail=1
+grep '^rootfs' out && { fail=1; cat out; }
+
+# Ensure that rootfs is yet skipped when explicitly specifying "-t rootfs".
+# As df emits "no file systems processed" in this case, it would be a failure
+# if df exited with status Zero.
+returns_ 1 df -t rootfs >out || fail=1
+grep '^rootfs' out && { fail=1; cat out; }
+
+# Ensure that the rootfs is shown when explicitly both specifying "-t rootfs"
+# and the -a option.
+df -t rootfs -a >out || fail=1
+grep '^rootfs' out || { fail=1; cat out; }
+
+# Ensure that the rootfs is omitted in all_fs mode when it is explicitly
+# black-listed.
+df -a -x rootfs >out || fail=1
+grep '^rootfs' out && { fail=1; cat out; }
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
diff --git a/tests/df/total-unprocessed.sh b/tests/df/total-unprocessed.sh
new file mode 100755
index 0000000..865c307
--- /dev/null
+++ b/tests/df/total-unprocessed.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+# Ensure that df exits non-Zero and writes an error message when
+# --total is used but no file system has been processed.
+
+# Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_mount_list_
+
+cat <<\EOF > exp || framework_failure_
+df: no file systems processed
+EOF
+
+# Check we exit with non-Zero.
+# Note we don't check when the file system can't be determined
+# as -t filtering is not applied in that case.
+if test "$(df --output=fstype . | tail -n1)" != '-'; then
+ df -t _non_existent_fstype_ --total . 2>out && fail=1
+ compare exp out || fail=1
+fi
+
+cat <<\EOF > exp || framework_failure_
+df: _does_not_exist_: No such file or directory
+EOF
+
+# Ensure that df writes the error message also in the following case.
+df --total _does_not_exist_ 2>out && fail=1
+compare exp out || fail=1
+
+Exit $fail
diff --git a/tests/df/total-verify.sh b/tests/df/total-verify.sh
new file mode 100755
index 0000000..5f4cd06
--- /dev/null
+++ b/tests/df/total-verify.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+# Ensure "df --total" computes accurate totals
+
+# Copyright (C) 2008-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+require_perl_
+
+# Protect against inaccessible remote mounts etc.
+timeout 10 df || skip_ "df fails"
+
+cat <<\EOF > check-df || framework_failure_
+my ($total, $used, $avail) = (0, 0, 0);
+while (<>)
+ {
+ $. == 1
+ and next; # skip first (header) line
+ # Recognize df output lines like these:
+ # /dev/sdc1 0 0 0 - /c
+ # tmpfs 1536000 12965 1523035 1% /tmp
+ # total 5285932 787409 4498523 15% -
+ /^(.*?) +(-?\d+|-) +(-?\d+|-) +(-?\d+|-) +(?:-|[0-9]+%) (.*)$/
+ or die "$0: invalid input line\n: $_";
+ if ($1 eq 'total' && $5 eq '-')
+ {
+ $total == $2 or die "$total != $2";
+ $used == $3 or die "$used != $3";
+ $avail == $4 or die "$avail != $4";
+ my $line = <>;
+ defined $line
+ and die "$0: extra line(s) after totals\n";
+ exit 0;
+ }
+ $total += $2 unless $2 eq '-';
+ $used += $3 unless $3 eq '-';
+ $avail += $4 unless $4 eq '-';
+ }
+die "$0: missing line of totals\n";
+EOF
+
+# Use --block-size=512 to keep df from printing rounded-to-kilobyte
+# numbers which wouldn't necessarily add up to the displayed total.
+df --total -P --block-size=512 > space || framework_failure_
+cat space # this helps when debugging any test failure
+df --total -i -P > inode || framework_failure_
+cat inode
+
+$PERL check-df space || fail=1
+$PERL check-df inode || fail=1
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
diff --git a/tests/df/unreadable.sh b/tests/df/unreadable.sh
new file mode 100755
index 0000000..f3e6100
--- /dev/null
+++ b/tests/df/unreadable.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+# ensure that df can handle an unreadable argument
+
+# Copyright (C) 2009-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ df
+skip_if_root_
+
+touch unreadable || fail=1
+chmod a-r unreadable || fail=1
+df unreadable || fail=1
+
+mkfifo_or_skip_ fifo
+timeout 10 df fifo || fail=1
+
+test "$fail" = 1 && dump_mount_list_
+
+Exit $fail
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 19:22:47 +0000