tp_test.c revision 275988 
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
33ATF_TC(getopt);
34ATF_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}
40ATF_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
83ATF_TP_ADD_TCS(tp)
84{
85    ATF_TP_ADD_TC(tp, getopt);
86
87    return atf_no_error();
88}
89