t/op/time.t

   1 #!./perl
   2
   3 $does_gmtime = gmtime(time);
   4
   5 BEGIN {
   6     chdir 't' if -d 't';
   7     @INC = '../lib';
   8     require './test.pl';
   9 }
  10
  11 plan tests => 8;
  12
  13 ($beguser,$begsys) = times;
  14
  15 $beg = time;
  16
  17 while (($now = time) == $beg) { sleep 1 }
  18
  19 ok($now > $beg && $now - $beg < 10,             'very basic time test');
  20
  21 for ($i = 0; $i < 1_000_000; $i++) {
  22     for my $j (1..100) {}; # burn some user cycles
  23     ($nowuser, $nowsys) = times;
  24     $i = 2_000_000 if $nowuser > $beguser && ( $nowsys >= $begsys ||
  25                                             (!$nowsys && !$begsys));
  26     last if time - $beg > 20;
  27 }
  28
  29 ok($i >= 2_000_000, 'very basic times test');
  30
  31 ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
  32 ($xsec,$foo) = localtime($now);
  33 $localyday = $yday;
  34
  35 ok($sec != $xsec && $mday && $year,             'localtime() list context');
  36
  37 ok(localtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
  38                     (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
  39                     ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
  40                   /x,
  41    'localtime(), scalar context'
  42   );
  43
  44 SKIP: {
  45     # This conditional of "No tzset()" is stolen from ext/POSIX/t/time.t
  46     skip "No tzset()", 1
  47         if $^O eq "MacOS" || $^O eq "VMS" || $^O eq "cygwin" ||
  48            $^O eq "djgpp" || $^O eq "MSWin32" || $^O eq "dos" ||
  49            $^O eq "interix";
  50
  51 # check that localtime respects changes to $ENV{TZ}
  52 $ENV{TZ} = "GMT-5";
  53 ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
  54 $ENV{TZ} = "GMT+5";
  55 ($sec,$min,$hour2,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
  56 ok($hour != $hour2,                             'changes to $ENV{TZ} respected');
  57 }
  58
  59 SKIP: {
  60     skip "No gmtime()", 3 unless $does_gmtime;
  61
  62 ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime($beg);
  63 ($xsec,$foo) = localtime($now);
  64
  65 ok($sec != $xsec && $mday && $year,             'gmtime() list context');
  66
  67 my $day_diff = $localyday - $yday;
  68 ok( grep({ $day_diff == $_ } (0, 1, -1, 364, 365, -364, -365)),
  69                      'gmtime() and localtime() agree what day of year');
  70
  71
  72 # This could be stricter.
  73 ok(gmtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
  74                  (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
  75                  ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
  76                /x,
  77    'gmtime(), scalar context'
  78   );
  79 }