xref: /freebsd/contrib/atf/atf-c/tp_test.c (revision 9268022b74279434ed6300244e3f977e56a8ceb5)
1 /* Copyright (c) 2010 The NetBSD Foundation, Inc.
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
14  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
15  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
20  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
22  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
24  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  */
25 
26 #include "atf-c/tp.h"
27 
28 #include <string.h>
29 #include <unistd.h>
30 
31 #include <atf-c.h>
32 
33 ATF_TC(getopt);
34 ATF_TC_HEAD(getopt, tc)
35 {
36     atf_tc_set_md_var(tc, "descr", "Checks if getopt(3) global state is "
37         "reset by the test program driver so that test cases can use "
38         "getopt(3) again");
39 }
40 ATF_TC_BODY(getopt, tc)
41 {
42     /* Provide an option that is unknown to the test program driver and
43      * one that is, together with an argument that would be swallowed by
44      * the test program option if it were recognized. */
45     int argc = 4;
46     char arg1[] = "progname";
47     char arg2[] = "-Z";
48     char arg3[] = "-s";
49     char arg4[] = "foo";
50     char *const argv[] = { arg1, arg2, arg3, arg4, NULL };
51 
52     int ch;
53     bool zflag;
54 
55     /* Given that this obviously is a test program, and that we used the
56      * same driver to start, we can test getopt(3) right here without doing
57      * any fancy stuff. */
58     zflag = false;
59     while ((ch = getopt(argc, argv, ":Z")) != -1) {
60         switch (ch) {
61         case 'Z':
62             zflag = true;
63             break;
64 
65         case '?':
66         default:
67             if (optopt != 's')
68                 atf_tc_fail("Unexpected unknown option -%c found", optopt);
69         }
70     }
71 
72     ATF_REQUIRE(zflag);
73     ATF_REQUIRE_EQ_MSG(1, argc - optind, "Invalid number of arguments left "
74         "after the call to getopt(3)");
75     ATF_CHECK_STREQ_MSG("foo", argv[optind], "The non-option argument is "
76         "invalid");
77 }
78 
79 /* ---------------------------------------------------------------------
80  * Main.
81  * --------------------------------------------------------------------- */
82 
83 ATF_TP_ADD_TCS(tp)
84 {
85     ATF_TP_ADD_TC(tp, getopt);
86 
87     return atf_no_error();
88 }
89