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#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
plan tests => 66;
# These tests make sure, among other things, that we don't end up
# burning tons of CPU for dates far in the future.
# watchdog() makes sure that the test script eventually exits if
# the tests are triggering the failing behavior
watchdog(15);
($beguser,$begsys) = times;
$beg = time;
while (($now = time) == $beg) { sleep 1 }
ok($now > $beg && $now - $beg < 10, 'very basic time test');
for ($i = 0; $i < 1_000_000; $i++) {
for my $j (1..100) {}; # burn some user cycles
($nowuser, $nowsys) = times;
$i = 2_000_000 if $nowuser > $beguser && ( $nowsys >= $begsys ||
(!$nowsys && !$begsys));
last if time - $beg > 20;
}
ok($i >= 2_000_000, 'very basic times test');
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
($xsec,$foo) = localtime($now);
$localyday = $yday;
isnt($sec, $xsec, 'localtime() list context');
ok $mday, ' month day';
ok $year, ' year';
ok(localtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
/x,
'localtime(), scalar context'
);
SKIP: {
# This conditional of "No tzset()" is stolen from ext/POSIX/t/time.t
skip "No tzset()", 1
if $^O eq "VMS" || $^O eq "cygwin" ||
$^O eq "djgpp" || $^O eq "MSWin32" || $^O eq "dos" ||
$^O eq "interix";
# check that localtime respects changes to $ENV{TZ}
$ENV{TZ} = "GMT-5";
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
$ENV{TZ} = "GMT+5";
($sec,$min,$hour2,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg);
ok($hour != $hour2, 'changes to $ENV{TZ} respected');
}
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime($beg);
($xsec,$foo) = localtime($now);
isnt($sec, $xsec, 'gmtime() list conext');
ok $mday, ' month day';
ok $year, ' year';
my $day_diff = $localyday - $yday;
ok( grep({ $day_diff == $_ } (0, 1, -1, 364, 365, -364, -365)),
'gmtime() and localtime() agree what day of year');
# This could be stricter.
ok(gmtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ]
(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ]
([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$
/x,
'gmtime(), scalar context'
);
# Test gmtime over a range of times.
{
# The range should be limited only by the 53-bit mantissa of an IEEE double (or
# whatever kind of double you've got). Here we just prove that we're comfortably
# beyond the range possible with 32-bit time_t.
my %tests = (
# time_t gmtime list scalar
-2**35 => [52, 13, 20, 7, 2, -1019, 5, 65, 0, "Fri Mar 7 20:13:52 881"],
-2**32 => [44, 31, 17, 24, 10, -67, 0, 327, 0, "Sun Nov 24 17:31:44 1833"],
-2**31 => [52, 45, 20, 13, 11, 1, 5, 346, 0, "Fri Dec 13 20:45:52 1901"],
-1 => [59, 59, 23, 31, 11, 69, 3, 364, 0, "Wed Dec 31 23:59:59 1969"],
0 => [0, 0, 0, 1, 0, 70, 4, 0, 0, "Thu Jan 1 00:00:00 1970"],
1 => [1, 0, 0, 1, 0, 70, 4, 0, 0, "Thu Jan 1 00:00:01 1970"],
2**30 => [4, 37, 13, 10, 0, 104, 6, 9, 0, "Sat Jan 10 13:37:04 2004"],
2**31 => [8, 14, 3, 19, 0, 138, 2, 18, 0, "Tue Jan 19 03:14:08 2038"],
2**32 => [16, 28, 6, 7, 1, 206, 0, 37, 0, "Sun Feb 7 06:28:16 2106"],
2**39 => [8, 18, 12, 25, 0, 17491, 2, 24, 0, "Tue Jan 25 12:18:08 19391"],
);
for my $time (keys %tests) {
my @expected = @{$tests{$time}};
my $scalar = pop @expected;
ok eq_array([gmtime($time)], \@expected), "gmtime($time) list context";
is scalar gmtime($time), $scalar, " scalar";
}
}
# Test localtime
{
# We pick times which fall in the middle of a month, so the month and year should be
# the same regardless of the time zone.
my %tests = (
# time_t month, year, scalar
-8589934592 => [9, -203, qr/Oct \d+ .* 1697$/],
-1296000 => [11, 69, qr/Dec \d+ .* 1969$/],
1296000 => [0, 70, qr/Jan \d+ .* 1970$/],
5000000000 => [5, 228, qr/Jun \d+ .* 2128$/],
1163500000 => [10, 106, qr/Nov \d+ .* 2006$/],
);
for my $time (keys %tests) {
my @expected = @{$tests{$time}};
my $scalar = pop @expected;
my @time = (localtime($time))[4,5];
ok( eq_array(\@time, \@expected), "localtime($time) list context" )
or diag("@time");
like scalar localtime($time), $scalar, " scalar";
}
}
# Test floating point args
{
warning_is(sub {is( (localtime(1296000.23))[5] + 1900, 1970 )},
undef, 'Ignore fractional time');
warning_is(sub {is( (gmtime(1.23))[5] + 1900, 1970 )},
undef, 'Ignore fractional time');
}
# Some sanity tests for the far, far future and far, far past
{
my %time2year = (
-2**52 => -142711421,
-2**48 => -8917617,
-2**46 => -2227927,
2**46 => 2231866,
2**48 => 8921556,
2**52 => 142715360,
);
for my $time (sort keys %time2year) {
my $want = $time2year{$time};
my $have = (gmtime($time))[5] + 1900;
is $have, $want, "year check, gmtime($time)";
$have = (localtime($time))[5] + 1900;
is $have, $want, "year check, localtime($time)";
}
}
# Test that Perl warns properly when it can't handle a time.
{
my $warning;
local $SIG{__WARN__} = sub { $warning .= join "\n", @_; };
my $big_time = 2**60;
my $small_time = -2**60;
$warning = '';
my $date = gmtime($big_time);
like $warning, qr/^gmtime(.*) too large/;
$warning = '';
$date = localtime($big_time);
like $warning, qr/^localtime(.*) too large/;
$warning = '';
$date = gmtime($small_time);
like $warning, qr/^gmtime(.*) too small/;
$warning = '';
$date = localtime($small_time);
like $warning, qr/^localtime(.*) too small/;
}
SKIP: { #rt #73040
# these are from the definitions of TIME_LOWER_BOUND AND TIME_UPPER_BOUND
my $smallest = -67768100567755200.0;
my $biggest = 67767976233316800.0;
# offset to a value that will fail
my $small_time = $smallest - 200;
my $big_time = $biggest + 200;
# check they're representable - typically means NV is
# long double
if ($small_time + 200 != $smallest
|| $small_time == $smallest
|| $big_time - 200 != $biggest
|| $big_time == $biggest) {
skip "Can't represent test values", 4;
}
my $small_time_f = sprintf("%.0f", $small_time);
my $big_time_f = sprintf("%.0f", $big_time);
# check the numbers in the warning are correct
my $warning;
local $SIG{__WARN__} = sub { $warning .= join "\n", @_; };
$warning = '';
my $date = gmtime($big_time);
like $warning, qr/^gmtime\($big_time_f\) too large/;
$warning = '';
$date = localtime($big_time);
like $warning, qr/^localtime\($big_time_f\) too large/;
$warning = '';
$date = gmtime($small_time);
like $warning, qr/^gmtime\($small_time_f\) too small/;
$warning = '';
$date = localtime($small_time);
like $warning, qr/^localtime\($small_time_f\) too small/;
}
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