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From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org
Subject: [PATCH 07/15] time: Add gmtime/gmtime_r tests
Date: Tue, 23 Mar 2021 10:44:50 -0300	[thread overview]
Message-ID: <20210323134458.2563022-8-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20210323134458.2563022-1-adhemerval.zanella@linaro.org>

Checked on x86_64-linux-gnu and i686-linux-gnu.
---
 time/Makefile     |   2 +-
 time/tst-gmtime.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 time/tst-gmtime.c

diff --git a/time/Makefile b/time/Makefile
index 91cb02a003..a503297527 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-settimeofday tst-itimer tst-gmtime
 
 include ../Rules
 
diff --git a/time/tst-gmtime.c b/time/tst-gmtime.c
new file mode 100644
index 0000000000..4d09cade79
--- /dev/null
+++ b/time/tst-gmtime.c
@@ -0,0 +1,125 @@
+/* Basic tests for gmtime.
+   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 int
+do_test (void)
+{
+  /* Check if the epoch time can be converted.  */
+  {
+    time_t t = 0;
+    struct tm *tmg = gmtime (&t);
+    TEST_COMPARE (tmg->tm_sec,   0);
+    TEST_COMPARE (tmg->tm_min,   0);
+    TEST_COMPARE (tmg->tm_hour,  0);
+    TEST_COMPARE (tmg->tm_mday,  1);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  70);
+    TEST_COMPARE (tmg->tm_wday,  4);
+    TEST_COMPARE (tmg->tm_yday,  0);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+  {
+    /* Same as before but with gmtime_r.  */
+    time_t t = 0;
+    struct tm tms;
+    struct tm *tmg = gmtime_r (&t, &tms);
+    TEST_VERIFY (tmg == &tms);
+    TEST_COMPARE (tmg->tm_year, 70);
+    TEST_COMPARE (tmg->tm_sec,   0);
+    TEST_COMPARE (tmg->tm_min,   0);
+    TEST_COMPARE (tmg->tm_hour,  0);
+    TEST_COMPARE (tmg->tm_mday,  1);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  70);
+    TEST_COMPARE (tmg->tm_wday,  4);
+    TEST_COMPARE (tmg->tm_yday,  0);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+
+  /* Check if the max time value for 32 bit time_t can be converted.  */
+  {
+    time_t t = 0x7fffffff;
+    struct tm *tmg = gmtime (&t);
+    TEST_COMPARE (tmg->tm_sec,   7);
+    TEST_COMPARE (tmg->tm_min,   14);
+    TEST_COMPARE (tmg->tm_hour,  3);
+    TEST_COMPARE (tmg->tm_mday,  19);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  138);
+    TEST_COMPARE (tmg->tm_wday,  2);
+    TEST_COMPARE (tmg->tm_yday,  18);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+  {
+    /* Same as before but with ctime_r.  */
+    time_t t = 0x7fffffff;
+    struct tm tms;
+    struct tm *tmg = gmtime_r (&t, &tms);
+    TEST_VERIFY (tmg == &tms);
+    TEST_COMPARE (tmg->tm_sec,   7);
+    TEST_COMPARE (tmg->tm_min,   14);
+    TEST_COMPARE (tmg->tm_hour,  3);
+    TEST_COMPARE (tmg->tm_mday,  19);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  138);
+    TEST_COMPARE (tmg->tm_wday,  2);
+    TEST_COMPARE (tmg->tm_yday,  18);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+
+  if (sizeof (time_t) < 8)
+    return 0;
+
+  {
+    time_t t = (time_t) 0x80000000ull;
+    struct tm *tmg = gmtime (&t);
+    TEST_COMPARE (tmg->tm_sec,   8);
+    TEST_COMPARE (tmg->tm_min,   14);
+    TEST_COMPARE (tmg->tm_hour,  3);
+    TEST_COMPARE (tmg->tm_mday,  19);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  138);
+    TEST_COMPARE (tmg->tm_wday,  2);
+    TEST_COMPARE (tmg->tm_yday,  18);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+
+  {
+    time_t t = (time_t) 0x80000000ull;
+    struct tm tms;
+    struct tm *tmg = gmtime_r (&t, &tms);
+    TEST_VERIFY (tmg == &tms);
+    TEST_COMPARE (tmg->tm_sec,   8);
+    TEST_COMPARE (tmg->tm_min,   14);
+    TEST_COMPARE (tmg->tm_hour,  3);
+    TEST_COMPARE (tmg->tm_mday,  19);
+    TEST_COMPARE (tmg->tm_mon,   0);
+    TEST_COMPARE (tmg->tm_year,  138);
+    TEST_COMPARE (tmg->tm_wday,  2);
+    TEST_COMPARE (tmg->tm_yday,  18);
+    TEST_COMPARE (tmg->tm_isdst, 0);
+  }
+
+  return 0;
+}
+
+#include <support/test-driver.c>
-- 
2.27.0


  parent reply	other threads:[~2021-03-23 13:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-23 13:44 [PATCH 00/15] Add some tests and infra changes Adhemerval Zanella
2021-03-23 13:44 ` [PATCH 01/15] io: Move file timestamps tests out of Linux Adhemerval Zanella
2021-04-15  5:04   ` Siddhesh Poyarekar
2021-04-15  5:15     ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 02/15] linux: Add futimes test Adhemerval Zanella
2021-04-15  5:07   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 03/15] linux: Add lutimes test Adhemerval Zanella
2021-04-15  5:25   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 04/15] io: Add basic tests for utimensat Adhemerval Zanella
2021-04-15  5:33   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 05/15] io: Use temporary directory and file for ftwtest-sh Adhemerval Zanella
2021-03-23 14:24   ` Andreas Schwab
2021-03-23 16:03     ` Adhemerval Zanella
2021-04-15  5:46   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 06/15] time: Add getitimer and setitimer basic tests Adhemerval Zanella
2021-04-15  5:59   ` Siddhesh Poyarekar
2021-03-23 13:44 ` Adhemerval Zanella [this message]
2021-04-15  6:01   ` [PATCH 07/15] time: Add gmtime/gmtime_r tests Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 08/15] time: Add timegm/timelocal basic tests Adhemerval Zanella
2021-03-23 14:28   ` Andreas Schwab
2021-03-23 15:53     ` Adhemerval Zanella
2021-04-15  6:05       ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 09/15] time: Add basic timespec_get tests Adhemerval Zanella
2021-04-15  6:08   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 10/15] time: Add 64 bit tests for getdate / getdate_r Adhemerval Zanella
2021-04-15  6:16   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 11/15] posix: Add wait3 tests Adhemerval Zanella
2021-04-15  6:26   ` Siddhesh Poyarekar
2021-03-23 13:44 ` [PATCH 12/15] linux: mips: Split libpthread.abilist in n32 and n64 Adhemerval Zanella
2021-04-15  7:01   ` Siddhesh Poyarekar
2021-04-15 12:00     ` Adhemerval Zanella
2021-03-23 13:44 ` [PATCH 13/15] linux: mips: Split librt.abilist " Adhemerval Zanella
2021-03-23 13:44 ` [PATCH 14/15] linux: mips: Split libanl.abilist " Adhemerval Zanella
2021-03-23 13:44 ` [PATCH 15/15] linux: s390: Add libanl.abilist in s390 and s390x Adhemerval Zanella

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