+2023-03-08 Bruno Haible <bruno@clisp.org>
+
+ gettimeofday tests: Enhance test.
+ * tests/test-gettimeofday.c: Include <stdlib.h> and macros.h.
+ (test_clobber): New function, extracted from main.
+ (test_consistency): New function, based on tests/test-timespec_get.c.
+ (main): Invoke both functions.
+ * modules/gettimeofday-tests (Files): Add macros.h.
+
2023-03-05 Paul Eggert <eggert@cs.ucla.edu>
stdio: suppress macOS 13 sprintf warnings
/*
* Copyright (C) 2005, 2007, 2009-2023 Free Software Foundation, Inc.
- * Written by Jim Meyering.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>. */
+/* Written by Jim Meyering and Bruno Haible. */
+
#include <config.h>
#include <sys/time.h>
#include <time.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-int
-main (void)
+#include "macros.h"
+
+static void
+test_clobber ()
{
time_t t = 0;
struct tm *lt;
if (memcmp (lt, &saved_lt, sizeof (struct tm)) != 0)
{
fprintf (stderr, "gettimeofday still clobbers the localtime buffer!\n");
- return 1;
+ exit (1);
}
+}
+
+static void
+test_consistency ()
+{
+ struct timeval tv1;
+ time_t tt2;
+ struct timeval tv3;
+ time_t tt4;
+
+ ASSERT (gettimeofday (&tv1, NULL) == 0);
+ tt2 = time (NULL);
+ ASSERT (gettimeofday (&tv3, NULL) == 0);
+ tt4 = time (NULL);
+
+ /* Verify monotonicity of gettimeofday(). */
+ ASSERT (tv1.tv_sec < tv3.tv_sec
+ || (tv1.tv_sec == tv3.tv_sec && tv1.tv_usec <= tv3.tv_usec));
+
+ /* Verify monotonicity of time(). */
+ ASSERT (tt2 <= tt4);
+
+ /* Verify that the tv_sec field of the result is the same as time(NULL). */
+ /* Note: This assertion sometimes fails on glibc systems, see
+ https://sourceware.org/bugzilla/show_bug.cgi?id=30200 */
+ ASSERT (tv1.tv_sec <= tt2);
+ ASSERT (tt2 <= tv3.tv_sec);
+ ASSERT (tv3.tv_sec <= tt4);
+}
+
+int
+main (void)
+{
+ test_clobber ();
+ test_consistency ();
+
return 0;
}