1 files changed, 94 insertions, 0 deletions
diff --git a/tests/du/files0-from.pl b/tests/du/files0-from.pl
new file mode 100755
index 0000000..331d614
--- /dev/null
+++ b/tests/du/files0-from.pl
@@ -0,0 +1,94 @@
+#!/usr/bin/perl
+# Exercise du's --files0-from option.
+# FIXME: keep this file in sync with tests/misc/wc-files0-from.
+
+# Copyright (C) 2004-2018 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/>.
+
+use strict;
+
+(my $program_name = $0) =~ s|.*/||;
+
+my $prog = 'du';
+
+# Turn off localization of executable's output.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+my @Tests =
+  (
+   # invalid extra command line argument
+   ['f-extra-arg', '--files0-from=- no-such', {IN=>"a"}, {EXIT=>1},
+    {ERR => "$prog: extra operand 'no-such'\n"
+        . "file operands cannot be combined with --files0-from\n"
+        . "Try '$prog --help' for more information.\n"}
+    ],
+
+   # missing input file
+   ['missing', '--files0-from=missing', {EXIT=>1},
+    {ERR => "$prog: cannot open 'missing' for reading: "
+     . "No such file or directory\n"}],
+
+   # input file name of '-'
+   ['minus-in-stdin', '--files0-from=-', '<', {IN=>{f=>'-'}}, {EXIT=>1},
+    {ERR => "$prog: when reading file names from stdin, no file name of"
+     . " '-' allowed\n"}],
+
+   # empty input, regular file
+   ['empty', '--files0-from=@AUX@', {AUX=>''}],
+
+   # empty input, from non-regular file
+   ['empty-nonreg', '--files0-from=/dev/null'],
+
+   # one NUL
+   ['nul-1', '--files0-from=-', '<', {IN=>"\0"}, {EXIT=>1},
+    {ERR => "$prog: -:1: invalid zero-length file name\n"}],
+
+   # two NULs
+   ['nul-2', '--files0-from=-', '<', {IN=>"\0\0"}, {EXIT=>1},
+    {ERR => "$prog: -:1: invalid zero-length file name\n"
+          . "$prog: -:2: invalid zero-length file name\n"}],
+
+   # one file name, no NUL
+   ['1', '--files0-from=-', '<',
+    {IN=>{f=>"g"}}, {AUX=>{g=>''}},
+    {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'} ],
+
+   # one file name, with NUL
+   ['1a', '--files0-from=-', '<',
+    {IN=>{f=>"g\0"}}, {AUX=>{g=>''}},
+    {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'} ],
+
+   # two identical file names, no final NUL
+   ['2', '--files0-from=-', '<',
+    {IN=>{f=>"g\0g"}}, {AUX=>{g=>''}},
+    {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'} ],
+
+   # two identical file names, with final NUL
+   ['2a', '--files0-from=-', '<',
+    {IN=>{f=>"g\0g\0"}}, {AUX=>{g=>''}},
+    {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'} ],
+
+   # Ensure that $prog processes FILEs following a zero-length name.
+   ['zero-len', '--files0-from=-', '<',
+    {IN=>{f=>"\0g\0"}}, {AUX=>{g=>''}},
+    {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'},
+    {ERR => "$prog: -:1: invalid zero-length file name\n"}, {EXIT=>1} ],
+  );
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;