125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/* Basic tests for gmtime.
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Copyright (C) 2021-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <time.h>
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#include <stdlib.h>
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#include <support/check.h>
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static int
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do_test (void)
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{
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/* Check if the epoch time can be converted. */
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{
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time_t t = 0;
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struct tm *tmg = gmtime (&t);
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TEST_COMPARE (tmg->tm_sec, 0);
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TEST_COMPARE (tmg->tm_min, 0);
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TEST_COMPARE (tmg->tm_hour, 0);
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TEST_COMPARE (tmg->tm_mday, 1);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 70);
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TEST_COMPARE (tmg->tm_wday, 4);
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TEST_COMPARE (tmg->tm_yday, 0);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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{
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/* Same as before but with gmtime_r. */
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time_t t = 0;
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struct tm tms;
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struct tm *tmg = gmtime_r (&t, &tms);
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TEST_VERIFY (tmg == &tms);
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TEST_COMPARE (tmg->tm_sec, 0);
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TEST_COMPARE (tmg->tm_min, 0);
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TEST_COMPARE (tmg->tm_hour, 0);
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TEST_COMPARE (tmg->tm_mday, 1);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 70);
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TEST_COMPARE (tmg->tm_wday, 4);
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TEST_COMPARE (tmg->tm_yday, 0);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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/* Check if the max time value for 32 bit time_t can be converted. */
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{
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time_t t = 0x7fffffff;
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struct tm *tmg = gmtime (&t);
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TEST_COMPARE (tmg->tm_sec, 7);
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TEST_COMPARE (tmg->tm_min, 14);
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TEST_COMPARE (tmg->tm_hour, 3);
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TEST_COMPARE (tmg->tm_mday, 19);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 138);
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TEST_COMPARE (tmg->tm_wday, 2);
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TEST_COMPARE (tmg->tm_yday, 18);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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{
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/* Same as before but with ctime_r. */
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time_t t = 0x7fffffff;
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struct tm tms;
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struct tm *tmg = gmtime_r (&t, &tms);
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TEST_VERIFY (tmg == &tms);
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TEST_COMPARE (tmg->tm_sec, 7);
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TEST_COMPARE (tmg->tm_min, 14);
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TEST_COMPARE (tmg->tm_hour, 3);
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TEST_COMPARE (tmg->tm_mday, 19);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 138);
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TEST_COMPARE (tmg->tm_wday, 2);
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TEST_COMPARE (tmg->tm_yday, 18);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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if (sizeof (time_t) < 8)
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return 0;
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{
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time_t t = (time_t) 0x80000000ull;
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struct tm *tmg = gmtime (&t);
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TEST_COMPARE (tmg->tm_sec, 8);
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TEST_COMPARE (tmg->tm_min, 14);
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TEST_COMPARE (tmg->tm_hour, 3);
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TEST_COMPARE (tmg->tm_mday, 19);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 138);
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TEST_COMPARE (tmg->tm_wday, 2);
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TEST_COMPARE (tmg->tm_yday, 18);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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{
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time_t t = (time_t) 0x80000000ull;
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struct tm tms;
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struct tm *tmg = gmtime_r (&t, &tms);
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TEST_VERIFY (tmg == &tms);
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TEST_COMPARE (tmg->tm_sec, 8);
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TEST_COMPARE (tmg->tm_min, 14);
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TEST_COMPARE (tmg->tm_hour, 3);
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TEST_COMPARE (tmg->tm_mday, 19);
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TEST_COMPARE (tmg->tm_mon, 0);
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TEST_COMPARE (tmg->tm_year, 138);
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TEST_COMPARE (tmg->tm_wday, 2);
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TEST_COMPARE (tmg->tm_yday, 18);
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TEST_COMPARE (tmg->tm_isdst, 0);
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}
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return 0;
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}
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#include <support/test-driver.c>
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