diff options
Diffstat (limited to 'time')
| -rw-r--r-- | time/Makefile | 2 | ||||
| -rw-r--r-- | time/tst-timegm.c | 95 |
2 files changed, 96 insertions, 1 deletions
diff --git a/time/Makefile b/time/Makefile index a503297527..5fcd40ccbb 100644 --- a/time/Makefile +++ b/time/Makefile @@ -49,7 +49,7 @@ tests := test_time clocktest tst-posixtz tst-strptime tst_wcsftime \ tst-tzname tst-y2039 bug-mktime4 tst-strftime2 tst-strftime3 \ tst-clock tst-clock2 tst-clock_nanosleep tst-cpuclock1 \ tst-adjtime tst-ctime tst-difftime tst-mktime4 tst-clock_settime \ - tst-settimeofday tst-itimer tst-gmtime + tst-settimeofday tst-itimer tst-gmtime tst-timegm include ../Rules diff --git a/time/tst-timegm.c b/time/tst-timegm.c new file mode 100644 index 0000000000..d9b08d380c --- /dev/null +++ b/time/tst-timegm.c @@ -0,0 +1,95 @@ +/* Basic tests for timegm. + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <time.h> +#include <stdlib.h> +#include <support/check.h> + +static void +do_test_func (time_t (*func)(struct tm *)) +{ + { + struct tm tmg = + { + .tm_sec = 0, + .tm_min = 0, + .tm_hour = 0, + .tm_mday = 1, + .tm_mon = 0, + .tm_year = 70, + .tm_wday = 4, + .tm_yday = 0, + .tm_isdst = 0 + }; + time_t t = func (&tmg); + TEST_COMPARE (t, 0); + } + + { + struct tm tmg = + { + .tm_sec = 7, + .tm_min = 14, + .tm_hour = 3, + .tm_mday = 19, + .tm_mon = 0, + .tm_year = 138, + .tm_wday = 2, + .tm_yday = 18, + .tm_isdst = 0 + }; + time_t t = func (&tmg); + TEST_COMPARE (t, 0x7fffffff); + } + + if (sizeof (time_t) < 8) + return; + + { + struct tm tmg = + { + .tm_sec = 8, + .tm_min = 14, + .tm_hour = 3, + .tm_mday = 19, + .tm_mon = 0, + .tm_year = 138, + .tm_wday = 2, + .tm_yday = 18, + .tm_isdst = 0 + }; + time_t t = func (&tmg); + TEST_COMPARE (t, (time_t) 0x80000000ull); + } +} + +static int +do_test (void) +{ + do_test_func (timegm); + + /* timelocal is an alias to mktime and behaves like timegm with the + difference that it takes timezone into account. */ + TEST_VERIFY_EXIT (setenv ("TZ", ":", 1) == 0); + tzset (); + do_test_func (timelocal); + + return 0; +} + +#include <support/test-driver.c> |