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/* $NetBSD: t_time.c,v 1.4 2017/01/10 15:32:46 christos Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_time.c,v 1.4 2017/01/10 15:32:46 christos Exp $");
#include <atf-c.h>
#include <errno.h>
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
ATF_TC(time_copy);
ATF_TC_HEAD(time_copy, tc)
{
atf_tc_set_md_var(tc, "descr", "Test the return values of time(3)");
}
ATF_TC_BODY(time_copy, tc)
{
time_t t1, t2 = 0;
t1 = time(&t2);
if (t1 != t2)
atf_tc_fail("incorrect return values from time(3)");
}
ATF_TC(time_mono);
ATF_TC_HEAD(time_mono, tc)
{
atf_tc_set_md_var(tc, "descr", "Test monotonicity of time(3)");
}
ATF_TC_BODY(time_mono, tc)
{
const size_t maxiter = 10;
time_t t1, t2;
size_t i;
for (i = 0; i < maxiter; i++) {
t1 = time(NULL);
(void)sleep(1);
t2 = time(NULL);
(void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
(int64_t)t1, (int64_t)t2);
if (t1 >= t2)
atf_tc_fail("time(3) is not monotonic");
}
}
ATF_TC(time_timeofday);
ATF_TC_HEAD(time_timeofday, tc)
{
atf_tc_set_md_var(tc, "descr", "Test time(3) vs. gettimeofday(2)");
}
ATF_TC_BODY(time_timeofday, tc)
{
struct timeval tv = { 0, 0 };
time_t t1, t2;
t1 = time(NULL);
ATF_REQUIRE(gettimeofday(&tv, NULL) == 0);
t2 = time(NULL);
(void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
(int64_t)t1, (int64_t)tv.tv_sec);
if (t1 > tv.tv_sec || t2 < tv.tv_sec)
atf_tc_fail("time(3) and gettimeofday(2) differ");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, time_copy);
ATF_TP_ADD_TC(tp, time_mono);
ATF_TP_ADD_TC(tp, time_timeofday);
return atf_no_error();
}
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