tests/misc/date-next-dow.pl

   1 #!/usr/bin/perl
   2 # Test "date".
   3
   4 # Copyright (C) 2005-2019 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 use POSIX qw(strftime);
  21
  22 (my $ME = $0) =~ s|.*/||;
  23
  24 # Turn off localization of executable's output.
  25 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  26
  27 # Export TZ=UTC0 so that zone-dependent strings match.
  28 $ENV{TZ} = 'UTC0';
  29
  30 my $now = time;
  31 my @d = localtime ($now);
  32 my @d_week = localtime ($now + 7 * 24 * 3600);
  33 my $wday = $d[6];
  34 my $wday_str = qw(sun mon tue wed thu fri sat)[$wday];
  35
  36 my @Tests =
  37     (
  38      # test-name, [option, option, ...] {OUT=>"expected-output"}
  39      #
  40
  41      # Running "date -d mon +%a" on a Monday must print Mon.
  42      ['dow',  "-d $wday_str +%a", {OUT => ucfirst $wday_str}],
  43      # It had better be the same date, too.
  44      ['dow2', "-d $wday_str +%Y-%m-%d", {OUT => strftime("%Y-%m-%d", @d)}],
  45
  46      ['next-dow', "-d 'next $wday_str' +%Y-%m-%d",
  47       {OUT => strftime("%Y-%m-%d", @d_week)}],
  48     );
  49
  50 # Append "\n" to each OUT=> RHS if the expected exit value is either
  51 # zero or not specified (defaults to zero).
  52 foreach my $t (@Tests)
  53   {
  54     my $exit_val;
  55     foreach my $e (@$t)
  56       {
  57         ref $e && ref $e eq 'HASH' && defined $e->{EXIT}
  58           and $exit_val = $e->{EXIT};
  59       }
  60     foreach my $e (@$t)
  61       {
  62         ref $e && ref $e eq 'HASH' && defined $e->{OUT} && ! $exit_val
  63           and $e->{OUT} .= "\n";
  64       }
  65   }
  66
  67 my $save_temps = $ENV{DEBUG};
  68 my $verbose = $ENV{VERBOSE};
  69
  70 my $prog = 'date';
  71 my $fail = run_tests ($ME, $prog, \@Tests, $save_temps, $verbose);
  72
  73 # Skip the test if the starting and stopping day numbers differ.
  74 my @d_post = localtime (time);
  75 $d_post[7] == $d[7]
  76   or CuSkip::skip "$ME: test straddled a day boundary; skipped";
  77
  78 exit $fail;