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-rwxr-xr-xgnulib-tests/test-update-copyright.sh561
1 files changed, 561 insertions, 0 deletions
diff --git a/gnulib-tests/test-update-copyright.sh b/gnulib-tests/test-update-copyright.sh
new file mode 100755
index 0000000..a88a3d0
--- /dev/null
+++ b/gnulib-tests/test-update-copyright.sh
@@ -0,0 +1,561 @@
+#!/bin/sh
+# Test suite for update-copyright.
+# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# This file is part of the GNUlib Library.
+#
+# 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/>.
+
+diffout=`diff -u /dev/null /dev/null 2>&1`
+if test x"$diffout" = x"" && test $? -eq 0; then
+ compare() { diff -u "$@"; }
+else
+ compare() { cmp "$@"; }
+fi
+
+# Ensure the update-copyright program gets found.
+PATH=$abs_aux_dir:$PATH
+export PATH
+
+TMP_BASE=update-copyright.test
+trap 'rm -f $TMP_BASE*' 0 1 2 3 15
+
+## --------------------------------- ##
+## Skip if user does not have perl. ##
+## --------------------------------- ##
+
+TMP=$TMP_BASE
+s=$TMP-script
+cat <<\EOF > $s
+#!/bin/sh
+#! -*-perl-*-
+# This is a prologue that allows to run a perl script as an executable
+# on systems that are compliant to a POSIX version before POSIX:2017.
+# On such systems, the usual invocation of an executable through execlp()
+# or execvp() fails with ENOEXEC if it is a script that does not start
+# with a #! line. The script interpreter mentioned in the #! line has
+# to be /bin/sh, because on GuixSD systems that is the only program that
+# has a fixed file name. The second line is essential for perl and is
+# also useful for editing this file in Emacs. The next two lines below
+# are valid code in both sh and perl. When executed by sh, they re-execute
+# the script through the perl program found in $PATH. The '-x' option
+# is essential as well; without it, perl would re-execute the script
+# through /bin/sh. When executed by perl, the next two lines are a no-op.
+eval 'exec perl -wSx -pi "$0" "$@"'
+ if 0;
+
+s/a/b/
+EOF
+chmod a+x $s
+echo a > $TMP-in
+./$s $TMP-in 2>/dev/null && test b = "`cat $TMP-in 2>/dev/null`" ||
+ {
+ printf '%s\n' "$0: skipping this test;" \
+ 'your system has insufficient support for Perl' 1>&2
+ exit 77
+ }
+
+# Skip this test if Perl is too old. FIXME: 5.8.0 is just a guess.
+# We have a report that 5.6.1 is inadequate and that 5.8.0 works.
+perl -e 'require 5.8.0' || {
+ echo '$0: skipping this test; Perl version is too old' 1>&2
+ exit 77
+}
+
+# Do not let a different envvar setting perturb results.
+UPDATE_COPYRIGHT_MAX_LINE_LENGTH=72
+export UPDATE_COPYRIGHT_MAX_LINE_LENGTH
+
+## ----------------------------- ##
+## Examples from documentation. ##
+## ----------------------------- ##
+
+TMP=$TMP_BASE-ex
+cat > $TMP.1 <<EOF
+Copyright @copyright{} 1990-2005, 2007-2009 Free Software
+Foundation, Inc.
+EOF
+cat > $TMP.2 <<EOF
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+cat > $TMP.3 <<EOF
+/*
+ * Copyright &copy; 90,2005,2007-2009
+ * Free Software Foundation, Inc.
+ */
+EOF
+cat > $TMP.4 <<EOF
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+cat > $TMP.5 <<EOF
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+cat > $TMP.6 <<EOF
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2009 Free Software Foundation,
+Inc.
+EOF
+cat > $TMP.7 <<EOF
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+
+UPDATE_COPYRIGHT_YEAR=2009 \
+ update-copyright $TMP.? 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: copyright statement not found
+$TMP.5: warning: copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990-2005, 2007-2009 Free Software
+Foundation, Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 90,2005,2007-2009
+ * Free Software Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2009 Free Software Foundation,
+Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+
+UPDATE_COPYRIGHT_YEAR=2010 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP.? 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: copyright statement not found
+$TMP.5: warning: copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990-2005, 2007-2010 Free Software Foundation,
+Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 1990, 2005, 2007-2010 Free Software Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+
+UPDATE_COPYRIGHT_YEAR=2010 UPDATE_COPYRIGHT_FORCE=1 \
+ update-copyright $TMP.? 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: copyright statement not found
+$TMP.5: warning: copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+Free Software Foundation, Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+# Software Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 1990, 2005, 2007, 2008, 2009, 2010 Free Software
+ * Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+
+Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+Software Foundation, Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+# Software Foundation, Inc.
+EOF
+
+rm $TMP*
+
+## -------------- ##
+## Current year. ##
+## -------------- ##
+
+TMP=$TMP_BASE-current-year
+YEAR=`date +%Y`
+cat > $TMP <<EOF
+'\" Copyright (C) 2006
+'\" Free Software Foundation,
+'\" Inc.
+EOF
+update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------ ##
+## Surrounding text. ##
+## ------------------ ##
+
+TMP=$TMP_BASE-surrounding-text
+cat > $TMP <<EOF
+ Undisturbed text.
+dnl Undisturbed text.
+dnl Copyright (C) 89
+dnl Free Software Foundation, Inc.
+dnl Undisturbed text.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ Undisturbed text.
+dnl Undisturbed text.
+dnl Copyright (C) 1989, 2010 Free Software Foundation, Inc.
+dnl Undisturbed text.
+EOF
+rm $TMP*
+
+## --------------- ##
+## Widest prefix. ##
+## --------------- ##
+
+TMP=$TMP_BASE-widest-prefix
+cat > $TMP <<EOF
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#### 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#### 2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984,
+#### 1985, 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+#### 2006, 2007, 2008, 2010 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976-1988, 1999-2008, 2010-2011 Free Software
+#### Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------- ##
+## Prefix too large. ##
+## ------------------- ##
+
+TMP=$TMP_BASE-prefix-too-large
+cat > $TMP <<EOF
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#### 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#### 2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP: warning: copyright statement not found
+EOF
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#### 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#### 2008 Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------- ##
+## Blank lines. ##
+## ------------- ##
+
+TMP=$TMP_BASE-blank-lines
+cat > $TMP <<EOF
+#Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#
+#1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#2008 Free Software Foundation, Inc.
+
+Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+
+1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP: warning: copyright statement not found
+EOF
+compare - $TMP <<EOF || exit 1
+#Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#
+#1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#2008 Free Software Foundation, Inc.
+
+Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+
+1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008 Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## -------------- ##
+## Leading tabs. ##
+## -------------- ##
+
+TMP=$TMP_BASE-leading-tabs
+cat > $TMP <<EOF
+ Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free
+ Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
+ Inc.
+EOF
+rm $TMP*
+
+## -------------------- ##
+## Unusual whitespace. ##
+## -------------------- ##
+
+TMP=$TMP_BASE-unusual-ws
+cat > $TMP <<EOF
+ # Copyright (C) 87-88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ # 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ # 2009 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ # Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994,
+ # 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ # 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+ # Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ # Copyright (C) 1987-1988, 1991-2011 Free Software
+ # Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=2 \
+ UPDATE_COPYRIGHT_FORCE=1 update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ # Copyright (C) 1987-2011 Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## --------- ##
+## DOS EOL. ##
+## --------- ##
+
+TMP=$TMP_BASE-dos-eol
+tr @ '\015' > $TMP <<\EOF
+Rem Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
+Rem 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
+Rem 2009 Free Software Foundation, Inc.@
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+tr @ '\015' > $TMP-exp <<\EOF
+Rem Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
+Rem 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
+Rem 2009, 2010 Free Software Foundation, Inc.@
+EOF
+compare $TMP-exp $TMP || exit 1
+rm $TMP*
+
+## --------------- ##
+## Omitted "(C)". ##
+## --------------- ##
+
+TMP=$TMP_BASE-omitted-circle-c
+cat > $TMP <<EOF
+ Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ 2009 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------ ##
+## C-style comments. ##
+## ------------------ ##
+
+TMP=$TMP_BASE-c-style-comments
+cat > $TMP.star <<EOF
+/* Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ * 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ * 2009 Free Software Foundation, Inc. */
+EOF
+cat > $TMP.space <<EOF
+ /*Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ 2009 Free Software Foundation, Inc. */
+EOF
+cat > $TMP.single-line <<EOF
+/* Copyright 87, 1991, 1992 Free Software Foundation, Inc. */
+EOF
+cat > $TMP.single-line-wrapped <<EOF
+ /* Copyright 1988, 1991, 1992, 1993 Free Software Foundation, Inc. */
+EOF
+cat > $TMP.extra-text-star <<EOF
+ /* Copyright 1987, 1988, 1991, 1992 Free Software Foundation, Inc. End
+ * More comments. */
+EOF
+cat > $TMP.extra-text-space <<EOF
+ /* Copyright 1987, 1988, 1991, 1992 Free Software Foundation, Inc. ***
+ * End of comments. */
+EOF
+cat > $TMP.two-digit-final-is-substr-of-first <<EOF
+ /* Copyright 1991, 99 Free Software Foundation, Inc. */
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+ update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP.star <<EOF || exit 1
+/* Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ * 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ * 2009, 2010 Free Software Foundation, Inc. */
+EOF
+compare - $TMP.space <<EOF || exit 1
+ /*Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ 2009, 2010 Free Software Foundation, Inc. */
+EOF
+compare - $TMP.single-line <<EOF || exit 1
+/* Copyright 1987, 1991, 1992, 2010 Free Software Foundation, Inc. */
+EOF
+compare - $TMP.single-line-wrapped <<EOF || exit 1
+ /* Copyright 1988, 1991, 1992, 1993, 2010 Free Software Foundation,
+ * Inc. */
+EOF
+compare - $TMP.extra-text-star <<EOF || exit 1
+ /* Copyright 1987, 1988, 1991, 1992, 2010 Free Software Foundation,
+ * Inc. End
+ * More comments. */
+EOF
+compare - $TMP.extra-text-space <<EOF || exit 1
+ /* Copyright 1987, 1988, 1991, 1992, 2010 Free Software Foundation,
+ Inc. ***
+ * End of comments. */
+EOF
+compare - $TMP.two-digit-final-is-substr-of-first <<EOF || exit 1
+ /* Copyright 1991, 1999, 2010 Free Software Foundation, Inc. */
+EOF
+rm $TMP*
+
+exit 0