glibc/time/tst-timespec_get.c

/* Basic tests for timespec_get.
   Copyright (C) 2021-2022 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 <support/check.h>

static int
do_test (void)
{
  {
    struct timespec ts;
    TEST_COMPARE (timespec_get (&ts, 0), 0);
  }

  {
    struct timespec ts;
    TEST_COMPARE (timespec_get (&ts, TIME_UTC), TIME_UTC);
    TEST_VERIFY (ts.tv_nsec >= 0);
    TEST_VERIFY (ts.tv_nsec < 1000000000);
  }

  return 0;
}

#include <support/test-driver.c>