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fix occasional op/time.t failure
[perl5.git] / t / op / time.t
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1#!./perl
2
a8c5b3cc 3$does_gmtime = gmtime(time);
26575770 4
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5BEGIN {
6 chdir 't' if -d 't';
7 @INC = '../lib';
8 require './test.pl';
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9}
10
a8c5b3cc 11plan tests => 8;
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12
13($beguser,$begsys) = times;
14
15$beg = time;
16
463ee0b2 17while (($now = time) == $beg) { sleep 1 }
8d063cd8 18
26575770 19ok($now > $beg && $now - $beg < 10, 'very basic time test');
8d063cd8 20
5f80d426 21for ($i = 0; $i < 1_000_000; $i++) {
584ba4d5 22 for my $j (1..100) {}; # burn some user cycles
8d063cd8 23 ($nowuser, $nowsys) = times;
5f80d426 24 $i = 2_000_000 if $nowuser > $beguser && ( $nowsys >= $begsys ||
a0d0e21e 25 (!$nowsys && !$begsys));
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26 last if time - $beg > 20;
27}
28
5f80d426 29ok($i >= 2_000_000, 'very basic times test');
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30
31($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
32($xsec,$foo) = localtime($now);
33$localyday = $yday;
34
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35ok($sec != $xsec && $mday && $year, 'localtime() list context');
36
37ok(localtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
38 (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
39 ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
40 /x,
41 'localtime(), scalar context'
42 );
8d063cd8 43
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44SKIP: {
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
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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($beg);
56ok($hour != $hour2, 'changes to $ENV{TZ} respected');
a8c5b3cc 57}
8572b25d 58
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59SKIP: {
60 skip "No gmtime()", 3 unless $does_gmtime;
a0d0e21e 61
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62($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime($beg);
63($xsec,$foo) = localtime($now);
64
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65ok($sec != $xsec && $mday && $year, 'gmtime() list context');
66
67my $day_diff = $localyday - $yday;
68ok( grep({ $day_diff == $_ } (0, 1, -1, 364, 365, -364, -365)),
69 'gmtime() and localtime() agree what day of year');
8d063cd8 70
f5a29b03
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71
72# This could be stricter.
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73ok(gmtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
74 (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
75 ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
76 /x,
77 'gmtime(), scalar context'
78 );
a8c5b3cc 79}