tests/tac/tac.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright (C) 2008-2023 Free Software Foundation, Inc.
   4
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17
  18 use strict;
  19
  20 my $prog = 'tac';
  21
  22 # Turn off localization of executable's output.
  23 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  24
  25 my $bad_dir = 'no/such/dir';
  26
  27 # This must be longer than 16KiB to trigger the double free in coreutils-8.5.
  28 my $long_line = 'o' x (16 * 1024 + 1);
  29
  30 my @Tests =
  31 (
  32   ['segfault', '-r', {IN=>"a\n"}, {IN=>"b\n"}, {OUT=>"a\nb\n"}],
  33   ['segfault2','-r', {IN=>"a\nb\n"}, {IN=>"1\n2\n"}, {OUT=>"b\na\n2\n1\n"}],
  34
  35   ['basic-0', '', {IN=>""}, {OUT=>""}],
  36   ['basic-a', '', {IN=>"a"}, {OUT=>"a"}],
  37   ['basic-b', '', {IN=>"\n"}, {OUT=>"\n"}],
  38   ['basic-c', '', {IN=>"a\n"}, {OUT=>"a\n"}],
  39   ['basic-d', '', {IN=>"a\nb"}, {OUT=>"ba\n"}],
  40   ['basic-e', '', {IN=>"a\nb\n"}, {OUT=>"b\na\n"}],
  41   ['basic-f', '', {IN=>"1234567\n8\n"}, {OUT=>"8\n1234567\n"}],
  42   ['basic-g', '', {IN=>"12345678\n9\n"}, {OUT=>"9\n12345678\n"}],
  43   ['basic-h', '', {IN=>"123456\n8\n"}, {OUT=>"8\n123456\n"}],
  44   ['basic-i', '', {IN=>"12345\n8\n"}, {OUT=>"8\n12345\n"}],
  45   ['basic-j', '', {IN=>"1234\n8\n"}, {OUT=>"8\n1234\n"}],
  46   ['basic-k', '', {IN=>"123\n8\n"}, {OUT=>"8\n123\n"}],
  47
  48   ['nul-0', '-s ""', {IN=>""}, {OUT=>""}],
  49   ['nul-a', '-s ""', {IN=>"a"}, {OUT=>"a"}],
  50   ['nul-b', '-s ""', {IN=>"\0"}, {OUT=>"\0"}],
  51   ['nul-c', '-s ""', {IN=>"a\0"}, {OUT=>"a\0"}],
  52   ['nul-d', '-s ""', {IN=>"a\0b"}, {OUT=>"ba\0"}],
  53   ['nul-e', '-s ""', {IN=>"a\0b\0"}, {OUT=>"b\0a\0"}],
  54
  55   ['opt-b', '-b', {IN=>"\na\nb\nc"}, {OUT=>"\nc\nb\na"}],
  56   ['opt-s', '-s:', {IN=>"a:b:c:"}, {OUT=>"c:b:a:"}],
  57   ['opt-sb', qw(-s : -b), {IN=>":a:b:c"}, {OUT=>":c:b:a"}],
  58   ['opt-r', qw(-r -s '\._+'),
  59    {IN=>"1._2.__3.___4._"},
  60    {OUT=>"4._3.___2.__1._"}],
  61
  62   ['opt-r2', qw(-r -s '\._+'),
  63    {IN=>"a.___b.__1._2.__3.___4._"},
  64    {OUT=>"4._3.___2.__1._b.__a.___"}],
  65
  66   # This gave incorrect output (.___4._2.__3._1) with tac-1.22.
  67   ['opt-br', qw(-b -r -s '\._+'),
  68    {IN=>"._1._2.__3.___4"}, {OUT=>".___4.__3._2._1"}],
  69
  70   ['opt-br2', qw(-b -r -s '\._+'),
  71    {IN=>".__x.___y.____z._1._2.__3.___4"},
  72    {OUT=>".___4.__3._2._1.____z.___y.__x"}],
  73
  74   ['pipe-bad-tmpdir',
  75    {ENV => "TMPDIR=$bad_dir"},
  76    {IN_PIPE => "a\n"},
  77    {ERR_SUBST => "s,'$bad_dir': .*,...,"},
  78    {ERR => "$prog: failed to create temporary file in ...\n"},
  79    {EXIT => 1}],
  80
  81   # coreutils-8.5's tac would double-free its primary buffer.
  82   ['double-free', {IN=>$long_line}, {OUT=>$long_line}],
  83 );
  84
  85 @Tests = triple_test \@Tests;
  86
  87 my $save_temps = $ENV{DEBUG};
  88 my $verbose = $ENV{VERBOSE};
  89
  90 my $fail = run_tests ($prog, $prog, \@Tests, $save_temps, $verbose);
  91 exit $fail;