1 /* $NetBSD: t_time.c,v 1.2 2011/11/11 05:03:38 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_time.c,v 1.2 2011/11/11 05:03:38 jruoho Exp $"); 33 34 #ifdef __FreeBSD__ 35 #include <sys/time.h> 36 #endif 37 #include <atf-c.h> 38 #include <errno.h> 39 #include <inttypes.h> 40 #include <stdint.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <time.h> 44 #include <unistd.h> 45 46 ATF_TC(time_copy); 47 ATF_TC_HEAD(time_copy, tc) 48 { 49 atf_tc_set_md_var(tc, "descr", "Test the return values of time(3)"); 50 } 51 52 ATF_TC_BODY(time_copy, tc) 53 { 54 time_t t1, t2 = 0; 55 56 t1 = time(&t2); 57 58 if (t1 != t2) 59 atf_tc_fail("incorrect return values from time(3)"); 60 } 61 62 ATF_TC(time_mono); 63 ATF_TC_HEAD(time_mono, tc) 64 { 65 atf_tc_set_md_var(tc, "descr", "Test monotonicity of time(3)"); 66 } 67 68 ATF_TC_BODY(time_mono, tc) 69 { 70 const size_t maxiter = 10; 71 time_t t1, t2; 72 size_t i; 73 74 for (i = 0; i < maxiter; i++) { 75 76 t1 = time(NULL); 77 (void)sleep(1); 78 t2 = time(NULL); 79 80 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n", 81 (int64_t)t1, (int64_t)t2); 82 83 if (t1 >= t2) 84 atf_tc_fail("time(3) is not monotonic"); 85 } 86 } 87 88 ATF_TC(time_timeofday); 89 ATF_TC_HEAD(time_timeofday, tc) 90 { 91 atf_tc_set_md_var(tc, "descr", "Test time(3) vs. gettimeofday(2)"); 92 } 93 94 ATF_TC_BODY(time_timeofday, tc) 95 { 96 struct timeval tv = { 0, 0 }; 97 time_t t; 98 99 t = time(NULL); 100 ATF_REQUIRE(gettimeofday(&tv, NULL) == 0); 101 102 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n", 103 (int64_t)t, (int64_t)tv.tv_sec); 104 105 if (t != tv.tv_sec) 106 atf_tc_fail("time(3) and gettimeofday(2) differ"); 107 } 108 109 ATF_TP_ADD_TCS(tp) 110 { 111 112 ATF_TP_ADD_TC(tp, time_copy); 113 ATF_TP_ADD_TC(tp, time_mono); 114 ATF_TP_ADD_TC(tp, time_timeofday); 115 116 return atf_no_error(); 117 } 118