1 files changed, 83 insertions, 0 deletions
diff --git a/tests/tsort/basic-1 b/tests/tsort/basic-1
new file mode 100755
index 0000000..4fe24f3
--- /dev/null
+++ b/tests/tsort/basic-1
@@ -0,0 +1,83 @@
+#!/bin/sh
+# -*- perl -*-
+# Test "tsort".
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 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 2 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+: ${PERL=perl}
+: ${srcdir=.}
+
+$PERL -e 1 > /dev/null 2>&1 || {
+  echo 1>&2 "$0: configure didn't find a usable version of Perl," \
+    "so can't run this test"
+  exit 77
+}
+
+exec $PERL -w -I$srcdir/.. -MCoreutils -- - <<\EOF
+#/
+require 5.003;
+use strict;
+
+(my $program_name = $0) =~ s|.*/||;
+
+# Turn off localisation of executable's ouput.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+my @Tests =
+  (
+   ['cycle-1', {IN => {f => "t b\nt s\ns t\n"}}, {OUT => "s\nt\nb\n"},
+    {EXIT => 1},
+    {ERR => "tsort: f: input contains a loop:\ntsort: s\ntsort: t\n"} ],
+   ['cycle-2', {IN => {f => "t x\nt s\ns t\n"}}, {OUT => "s\nt\nx\n"},
+    {EXIT => 1},
+    {ERR => "tsort: f: input contains a loop:\ntsort: s\ntsort: t\n"} ],
+
+   ['posix-1', {IN => "a b c c d e\ng g\nf g e f\nh h\n"},
+    {OUT => "a\nc\nd\nh\nb\ne\nf\ng\n"}],
+   ['posix-2', {IN => "b a\nd c\nz h x h r h\n"},
+    {OUT => "b\nd\nr\nx\nz\na\nc\nh\n"}],
+
+   ['linear-1', {IN => "a b b c c d d e e f f g\n"},
+    {OUT => "a\nb\nc\nd\ne\nf\ng\n"}],
+
+   ['tree-1', {IN => "a b b c c d d e e f f g\nc x x y y z\n"},
+    {OUT => "a\nb\nc\nx\nd\ny\ne\nz\nf\ng\n"}],
+   ['tree-2', {IN => "a b b c c d d e e f f g\nc x x y y z\nf r r s s t\n"},
+    {OUT => "a\nb\nc\nx\nd\ny\ne\nz\nf\nr\ng\ns\nt\n"}],
+
+   # Before coreutils-5.0.1, given an odd number of input tokens,
+   # tsort would accept that and treat the input as if an additional
+   # copy of the final token were appended.
+   ['odd', {IN => "a\n"},
+    {EXIT => 1},
+    {ERR => "tsort: odd.1: input contains an odd number of tokens\n"}],
+
+   ['only-one', {IN => {f => ""}}, {IN => {g => ""}},
+    {EXIT => 1},
+    {ERR => "tsort: extra operand `g'\n"
+     . "Try `tsort --help' for more information.\n"}],
+  );
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+
+my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;
+EOF