xref: /freebsd/contrib/netbsd-tests/lib/libc/gen/t_assert.c (revision 49b49cda41feabe3439f7318e8bf40e3896c7bf4)
1 /* $NetBSD: t_assert.c,v 1.2 2011/06/14 05:28:00 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_assert.c,v 1.2 2011/06/14 05:28:00 jruoho Exp $");
33 
34 #include <sys/wait.h>
35 
36 #include <assert.h>
37 #include <atf-c.h>
38 #include <signal.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <unistd.h>
42 
43 #ifdef __FreeBSD__
44 #include <sys/types.h>
45 #include <sys/time.h>
46 #include <sys/resource.h>
47 
48 static void
49 disable_corefile(void)
50 {
51 	struct rlimit limits;
52 
53 	limits.rlim_cur = 0;
54 	limits.rlim_max = 0;
55 
56 	ATF_REQUIRE(setrlimit(RLIMIT_CORE, &limits) == 0);
57 }
58 #endif
59 
60 static void		handler(int);
61 
62 static void
63 handler(int signo)
64 {
65 	/* Nothing. */
66 }
67 
68 ATF_TC(assert_false);
69 ATF_TC_HEAD(assert_false, tc)
70 {
71 	atf_tc_set_md_var(tc, "descr", "Test that assert(3) works, #1");
72 }
73 
74 ATF_TC_BODY(assert_false, tc)
75 {
76 	struct sigaction sa;
77 	pid_t pid;
78 	int sta;
79 
80 	pid = fork();
81 	ATF_REQUIRE(pid >= 0);
82 
83 	if (pid == 0) {
84 
85 #ifdef __FreeBSD__
86 		disable_corefile();
87 #endif
88 		(void)closefrom(0);
89 		(void)memset(&sa, 0, sizeof(struct sigaction));
90 
91 		sa.sa_flags = 0;
92 		sa.sa_handler = handler;
93 
94 		(void)sigemptyset(&sa.sa_mask);
95 		(void)sigaction(SIGABRT, &sa, 0);
96 
97 		assert(1 == 1);
98 
99 		_exit(EXIT_SUCCESS);
100 	}
101 
102 	(void)wait(&sta);
103 
104 	if (WIFSIGNALED(sta) != 0 || WIFEXITED(sta) == 0)
105 		atf_tc_fail("assert(3) fired haphazardly");
106 }
107 
108 ATF_TC(assert_true);
109 ATF_TC_HEAD(assert_true, tc)
110 {
111 	atf_tc_set_md_var(tc, "descr", "Test that assert(3) works, #2");
112 }
113 
114 ATF_TC_BODY(assert_true, tc)
115 {
116 	struct sigaction sa;
117 	pid_t pid;
118 	int sta;
119 
120 	pid = fork();
121 	ATF_REQUIRE(pid >= 0);
122 
123 	if (pid == 0) {
124 
125 #ifdef __FreeBSD__
126 		disable_corefile();
127 #endif
128 		(void)closefrom(0);
129 		(void)memset(&sa, 0, sizeof(struct sigaction));
130 
131 		sa.sa_flags = 0;
132 		sa.sa_handler = handler;
133 
134 		(void)sigemptyset(&sa.sa_mask);
135 		(void)sigaction(SIGABRT, &sa, 0);
136 
137 		assert(1 == 2);
138 
139 		_exit(EXIT_SUCCESS);
140 	}
141 
142 	(void)wait(&sta);
143 
144 	if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != SIGABRT)
145 		atf_tc_fail("assert(3) did not fire");
146 }
147 
148 ATF_TP_ADD_TCS(tp)
149 {
150 
151 	ATF_TP_ADD_TC(tp, assert_false);
152 	ATF_TP_ADD_TC(tp, assert_true);
153 
154 	return atf_no_error();
155 }
156