1#!./perl -w 2 3BEGIN { 4 chdir 't' if -d 't'; 5 @INC = '../lib'; 6 require './test.pl'; 7} 8 9plan tests => 62; 10 11# These tests make sure, among other things, that we don't end up 12# burning tons of CPU for dates far in the future. 13# watchdog() makes sure that the test script eventually exits if 14# the tests are triggering the failing behavior 15watchdog(15); 16 17($beguser,$begsys) = times; 18 19$beg = time; 20 21while (($now = time) == $beg) { sleep 1 } 22 23ok($now > $beg && $now - $beg < 10, 'very basic time test'); 24 25for ($i = 0; $i < 1_000_000; $i++) { 26 for my $j (1..100) {}; # burn some user cycles 27 ($nowuser, $nowsys) = times; 28 $i = 2_000_000 if $nowuser > $beguser && ( $nowsys >= $begsys || 29 (!$nowsys && !$begsys)); 30 last if time - $beg > 20; 31} 32 33ok($i >= 2_000_000, 'very basic times test'); 34 35($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg); 36($xsec,$foo) = localtime($now); 37$localyday = $yday; 38 39isnt($sec, $xsec, 'localtime() list context'); 40ok $mday, ' month day'; 41ok $year, ' year'; 42 43ok(localtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ] 44 (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ] 45 ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$ 46 /x, 47 'localtime(), scalar context' 48 ); 49 50SKIP: { 51 # This conditional of "No tzset()" is stolen from ext/POSIX/t/time.t 52 skip "No tzset()", 1 53 if $^O eq "VMS" || $^O eq "cygwin" || 54 $^O eq "djgpp" || $^O eq "MSWin32" || $^O eq "dos" || 55 $^O eq "interix"; 56 57# check that localtime respects changes to $ENV{TZ} 58$ENV{TZ} = "GMT-5"; 59($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg); 60$ENV{TZ} = "GMT+5"; 61($sec,$min,$hour2,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($beg); 62ok($hour != $hour2, 'changes to $ENV{TZ} respected'); 63} 64 65 66($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime($beg); 67($xsec,$foo) = localtime($now); 68 69isnt($sec, $xsec, 'gmtime() list conext'); 70ok $mday, ' month day'; 71ok $year, ' year'; 72 73my $day_diff = $localyday - $yday; 74ok( grep({ $day_diff == $_ } (0, 1, -1, 364, 365, -364, -365)), 75 'gmtime() and localtime() agree what day of year'); 76 77 78# This could be stricter. 79ok(gmtime() =~ /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat)[ ] 80 (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[ ] 81 ([ \d]\d)\ (\d\d):(\d\d):(\d\d)\ (\d{4})$ 82 /x, 83 'gmtime(), scalar context' 84 ); 85 86 87 88# Test gmtime over a range of times. 89{ 90 # The range should be limited only by the 53-bit mantissa of an IEEE double (or 91 # whatever kind of double you've got). Here we just prove that we're comfortably 92 # beyond the range possible with 32-bit time_t. 93 my %tests = ( 94 # time_t gmtime list scalar 95 -2**35 => [52, 13, 20, 7, 2, -1019, 5, 65, 0, "Fri Mar 7 20:13:52 881"], 96 -2**32 => [44, 31, 17, 24, 10, -67, 0, 327, 0, "Sun Nov 24 17:31:44 1833"], 97 -2**31 => [52, 45, 20, 13, 11, 1, 5, 346, 0, "Fri Dec 13 20:45:52 1901"], 98 -1 => [59, 59, 23, 31, 11, 69, 3, 364, 0, "Wed Dec 31 23:59:59 1969"], 99 0 => [0, 0, 0, 1, 0, 70, 4, 0, 0, "Thu Jan 1 00:00:00 1970"], 100 1 => [1, 0, 0, 1, 0, 70, 4, 0, 0, "Thu Jan 1 00:00:01 1970"], 101 2**30 => [4, 37, 13, 10, 0, 104, 6, 9, 0, "Sat Jan 10 13:37:04 2004"], 102 2**31 => [8, 14, 3, 19, 0, 138, 2, 18, 0, "Tue Jan 19 03:14:08 2038"], 103 2**32 => [16, 28, 6, 7, 1, 206, 0, 37, 0, "Sun Feb 7 06:28:16 2106"], 104 2**39 => [8, 18, 12, 25, 0, 17491, 2, 24, 0, "Tue Jan 25 12:18:08 19391"], 105 ); 106 107 for my $time (keys %tests) { 108 my @expected = @{$tests{$time}}; 109 my $scalar = pop @expected; 110 111 ok eq_array([gmtime($time)], \@expected), "gmtime($time) list context"; 112 is scalar gmtime($time), $scalar, " scalar"; 113 } 114} 115 116 117# Test localtime 118{ 119 # We pick times which fall in the middle of a month, so the month and year should be 120 # the same regardless of the time zone. 121 my %tests = ( 122 # time_t month, year, scalar 123 -8589934592 => [9, -203, qr/Oct \d+ .* 1697$/], 124 -1296000 => [11, 69, qr/Dec \d+ .* 1969$/], 125 1296000 => [0, 70, qr/Jan \d+ .* 1970$/], 126 5000000000 => [5, 228, qr/Jun \d+ .* 2128$/], 127 1163500000 => [10, 106, qr/Nov \d+ .* 2006$/], 128 ); 129 130 for my $time (keys %tests) { 131 my @expected = @{$tests{$time}}; 132 my $scalar = pop @expected; 133 134 my @time = (localtime($time))[4,5]; 135 ok( eq_array(\@time, \@expected), "localtime($time) list context" ) 136 or diag("@time"); 137 like scalar localtime($time), $scalar, " scalar"; 138 } 139} 140 141# Test floating point args 142{ 143 eval { 144 $SIG{__WARN__} = sub { die @_; }; 145 is( (localtime(1296000.23))[5] + 1900, 1970 ); 146 }; 147 is($@, '', 'Ignore fractional time'); 148 eval { 149 $SIG{__WARN__} = sub { die @_; }; 150 is( (gmtime(1.23))[5] + 1900, 1970 ); 151 }; 152 is($@, '', 'Ignore fractional time'); 153} 154 155 156# Some sanity tests for the far, far future and far, far past 157{ 158 my %time2year = ( 159 -2**52 => -142711421, 160 -2**48 => -8917617, 161 -2**46 => -2227927, 162 2**46 => 2231866, 163 2**48 => 8921556, 164 2**52 => 142715360, 165 ); 166 167 for my $time (sort keys %time2year) { 168 my $want = $time2year{$time}; 169 170 my $have = (gmtime($time))[5] + 1900; 171 is $have, $want, "year check, gmtime($time)"; 172 173 $have = (localtime($time))[5] + 1900; 174 is $have, $want, "year check, localtime($time)"; 175 } 176} 177 178 179# Test that Perl warns properly when it can't handle a time. 180{ 181 my $warning; 182 local $SIG{__WARN__} = sub { $warning .= join "\n", @_; }; 183 184 my $big_time = 2**60; 185 my $small_time = -2**60; 186 187 $warning = ''; 188 my $date = gmtime($big_time); 189 like $warning, qr/^gmtime(.*) too large/; 190 191 $warning = ''; 192 $date = localtime($big_time); 193 like $warning, qr/^localtime(.*) too large/; 194 195 $warning = ''; 196 $date = gmtime($small_time); 197 like $warning, qr/^gmtime(.*) too small/; 198 199 $warning = ''; 200 $date = localtime($small_time); 201 like $warning, qr/^localtime(.*) too small/; 202} 203