tests/misc/tail.pl

   1 #!/usr/bin/perl
   2 # Test tail.
   3
   4 # Copyright (C) 2008-2019 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 use strict;
  20
  21 my $prog = 'tail';
  22 my $normalize_strerror = "s/': .*/'/";
  23
  24 # Turn off localization of executable's output.
  25 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  26
  27 my @tv = (
  28 # test name, options, input, expected output, expected return code
  29 #
  30 ['obs-plus-c1', '+2c', 'abcd', 'bcd', 0],
  31 ['obs-plus-c2', '+8c', 'abcd', '', 0],
  32 ['obs-c3', '-1c', 'abcd', 'd', 0],
  33 ['obs-c4', '-9c', 'abcd', 'abcd', 0],
  34 ['obs-c5', '-12c', 'x' . ('y' x 12) . 'z', ('y' x 11) . 'z', 0],
  35
  36 ['obs-l1', '-1l', 'x', 'x', 0],
  37 ['obs-l2', '-1l', "x\ny\n", "y\n", 0],
  38 ['obs-l3', '-1l', "x\ny", "y", 0],
  39 ['obs-plus-l4', '+1l', "x\ny\n", "x\ny\n", 0],
  40 ['obs-plus-l5', '+2l', "x\ny\n", "y\n", 0],
  41
  42 # Same as -l tests, but without the 'l'.
  43 ['obs-1', '-1', 'x', 'x', 0],
  44 ['obs-2', '-1', "x\ny\n", "y\n", 0],
  45 ['obs-3', '-1', "x\ny", "y", 0],
  46 ['obs-plus-4', '+1', "x\ny\n", "x\ny\n", 0],
  47 ['obs-plus-5', '+2', "x\ny\n", "y\n", 0],
  48
  49 # This is equivalent to +10c
  50 ['obs-plus-x1', '+c', 'x' . ('y' x 10) . 'z', 'yyz', 0],
  51 # This is equivalent to +10l
  52 ['obs-plus-x2', '+l', "x\n" . ("y\n" x 10) . 'z', "y\ny\nz", 0],
  53 # With no number, this is like -10l
  54 ['obs-l', '-l', "x\n" . ("y\n" x 10) . 'z', ("y\n" x 9) . 'z', 0],
  55
  56 ['obs-b', '-b', "x\n" x (512 * 10 / 2 + 1), "x\n" x (512 * 10 / 2), 0],
  57
  58 ['err-1', '+cl', '', '', 1,
  59  "$prog: cannot open '+cl' for reading: No such file or directory\n"],
  60
  61 ['err-2', '-cl', '', '', 1,
  62  "$prog: invalid number of bytes: 'l'\n", $normalize_strerror],
  63
  64 ['err-3', '+2cz', '', '', 1,
  65  "$prog: cannot open '+2cz' for reading: No such file or directory\n"],
  66
  67 # This should get 'tail: invalid option -- 2'
  68 ['err-4', '-2cX', '', '', 1,
  69  "$prog: option used in invalid context -- 2\n"],
  70
  71 # Since the number is larger than 2^64, this should provoke
  72 # the diagnostic: 'tail: 99999999999999999999: invalid number of bytes'
  73 # on all systems... probably, for now, maybe.
  74 ['err-5', '-c99999999999999999999', '', '', 1,
  75  "$prog: invalid number of bytes: '99999999999999999999'\n",
  76  $normalize_strerror],
  77 ['err-6', '-c --', '', '', 1,
  78  "$prog: invalid number of bytes: '-'\n", $normalize_strerror],
  79
  80 # Same as -n 10
  81 ['minus-1', '-', '', '', 0],
  82 ['minus-2', '-', "x\n" . ("y\n" x 10) . 'z', ("y\n" x 9) . 'z', 0],
  83
  84 ['c-2', '-c 2', "abcd\n", "d\n", 0],
  85 ['c-2-minus', '-c 2 --', "abcd\n", "d\n", 0],
  86 ['c2', '-c2', "abcd\n", "d\n", 0],
  87 ['c2-minus', '-c2 --', "abcd\n", "d\n", 0],
  88
  89 ['n-1', '-n 10', "x\n" . ("y\n" x 10) . 'z', ("y\n" x 9) . 'z', 0],
  90 ['n-2', '-n -10', "x\n" . ("y\n" x 10) . 'z', ("y\n" x 9) . 'z', 0],
  91 ['n-3', '-n +10', "x\n" . ("y\n" x 10) . 'z', "y\ny\nz", 0],
  92
  93 # Accept +0 as synonym for +1.
  94 ['n-4',  '-n +0', "y\n" x 5, "y\n" x 5, 0],
  95 ['n-4a', '-n +1', "y\n" x 5, "y\n" x 5, 0],
  96
  97 # Note that -0 is *not* a synonym for -1.
  98 ['n-5',  '-n -0', "y\n" x 5, '', 0],
  99 ['n-5a', '-n -1', "y\n" x 5, "y\n", 0],
 100 ['n-5b', '-n  0', "y\n" x 5, '', 0],
 101
 102 # With textutils-1.22, this failed.
 103 ['f-pipe-1', '-f -n 1', "a\nb\n", "b\n", 0],
 104
 105 # --zero-terminated
 106 ['zero-1', '-z -n 1', "x\0y", "y", 0],
 107 ['zero-2', '-z -n 2', "x\0y", "x\0y", 0],
 108 );
 109
 110 my @Tests;
 111
 112 foreach my $t (@tv)
 113   {
 114     my ($test_name, $flags, $in, $exp, $ret, $err_msg, $err_sub) = @$t;
 115     my $e = [$test_name, $flags, {IN=>$in}, {OUT=>$exp}];
 116     $ret
 117       and push @$e, {EXIT=>$ret}, {ERR=>$err_msg}, {ERR_SUBST=>$err_sub};
 118
 119     $test_name =~ /^minus-/
 120       and push @$e, {ENV=>'_POSIX2_VERSION=199209'};
 121
 122     $test_name =~ /^(err-6|c-2)$/
 123       and push @$e, {ENV=>'_POSIX2_VERSION=200112'};
 124
 125     $test_name =~ /^obs-plus-/
 126       and push @$e, {ENV=>'_POSIX2_VERSION=200809'};
 127
 128     $test_name =~ /^f-pipe-/
 129       and push @$e, {ENV=>'POSIXLY_CORRECT=1'};
 130
 131     push @Tests, $e;
 132   }
 133
 134 @Tests = triple_test \@Tests;
 135
 136 # If you run the minus* tests with a FILE arg they'd hang.
 137 # If you run the err-1 or err-3 tests with a FILE, they'd misinterpret
 138 # the arg unless we are using the obsolete form.
 139 @Tests = grep { $_->[0] !~ /^(minus|err-[13])/ || $_->[0] =~ /\.[rp]$/ } @Tests;
 140
 141 # Using redirection or a file would make this hang.
 142 @Tests = grep { $_->[0] !~ /^f-/ || $_->[0] =~ /\.p$/ } @Tests;
 143
 144 my $save_temps = $ENV{DEBUG};
 145 my $verbose = $ENV{VERBOSE};
 146
 147 my $fail = run_tests ($prog, $prog, \@Tests, $save_temps, $verbose);
 148 exit $fail;