1 /* $NetBSD: t_strcmp.c,v 1.4 2012/03/25 08:17:54 joerg Exp $ */
2
3 /*
4 * Written by J.T. Conklin <jtc@acorntoolworks.com>
5 * Public domain.
6 */
7
8 #include <atf-c.h>
9 #include <string.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <stdlib.h>
13
14 ATF_TC(strcmp_basic);
ATF_TC_HEAD(strcmp_basic,tc)15 ATF_TC_HEAD(strcmp_basic, tc)
16 {
17 atf_tc_set_md_var(tc, "descr", "Test strcmp(3) results, #1");
18 }
19
ATF_TC_BODY(strcmp_basic,tc)20 ATF_TC_BODY(strcmp_basic, tc)
21 {
22 /* try to trick the compiler */
23 int (*f)(const char *, const char *s) = strcmp;
24
25 unsigned int a0, a1, t;
26 char buf0[64];
27 char buf1[64];
28 int ret;
29
30 struct tab {
31 const char* val0;
32 const char* val1;
33 int ret;
34 };
35
36 const struct tab tab[] = {
37 { "", "", 0 },
38
39 { "a", "a", 0 },
40 { "a", "b", -1 },
41 { "b", "a", +1 },
42 { "", "a", -1 },
43 { "a", "", +1 },
44
45 { "aa", "aa", 0 },
46 { "aa", "ab", -1 },
47 { "ab", "aa", +1 },
48 { "a", "aa", -1 },
49 { "aa", "a", +1 },
50
51 { "aaa", "aaa", 0 },
52 { "aaa", "aab", -1 },
53 { "aab", "aaa", +1 },
54 { "aa", "aaa", -1 },
55 { "aaa", "aa", +1 },
56
57 { "aaaa", "aaaa", 0 },
58 { "aaaa", "aaab", -1 },
59 { "aaab", "aaaa", +1 },
60 { "aaa", "aaaa", -1 },
61 { "aaaa", "aaa", +1 },
62
63 { "aaaaa", "aaaaa", 0 },
64 { "aaaaa", "aaaab", -1 },
65 { "aaaab", "aaaaa", +1 },
66 { "aaaa", "aaaaa", -1 },
67 { "aaaaa", "aaaa", +1 },
68
69 { "aaaaaa", "aaaaaa", 0 },
70 { "aaaaaa", "aaaaab", -1 },
71 { "aaaaab", "aaaaaa", +1 },
72 { "aaaaa", "aaaaaa", -1 },
73 { "aaaaaa", "aaaaa", +1 },
74 };
75
76 for (a0 = 0; a0 < sizeof(long); ++a0) {
77 for (a1 = 0; a1 < sizeof(long); ++a1) {
78 for (t = 0; t < __arraycount(tab); ++t) {
79 memcpy(&buf0[a0], tab[t].val0,
80 strlen(tab[t].val0) + 1);
81 memcpy(&buf1[a1], tab[t].val1,
82 strlen(tab[t].val1) + 1);
83
84 ret = f(&buf0[a0], &buf1[a1]);
85
86 if ((ret == 0 && tab[t].ret != 0) ||
87 (ret < 0 && tab[t].ret >= 0) ||
88 (ret > 0 && tab[t].ret <= 0)) {
89 fprintf(stderr, "a0 %d, a1 %d, t %d\n",
90 a0, a1, t);
91 fprintf(stderr, "\"%s\" \"%s\" %d\n",
92 &buf0[a0], &buf1[a1], ret);
93 atf_tc_fail("Check stderr for details");
94 }
95 }
96 }
97 }
98 }
99
100 ATF_TC(strcmp_simple);
ATF_TC_HEAD(strcmp_simple,tc)101 ATF_TC_HEAD(strcmp_simple, tc)
102 {
103 atf_tc_set_md_var(tc, "descr", "Test strcmp(3) results, #2");
104 }
105
ATF_TC_BODY(strcmp_simple,tc)106 ATF_TC_BODY(strcmp_simple, tc)
107 {
108 char buf1[10] = "xxx";
109 char buf2[10] = "xxy";
110
111 ATF_CHECK(strcmp(buf1, buf1) == 0);
112 ATF_CHECK(strcmp(buf2, buf2) == 0);
113
114 ATF_CHECK(strcmp("x\xf6x", "xox") > 0);
115 ATF_CHECK(strcmp("xxx", "xxxyyy") < 0);
116 ATF_CHECK(strcmp("xxxyyy", "xxx") > 0);
117
118 ATF_CHECK(strcmp(buf1 + 0, buf2 + 0) < 0);
119 ATF_CHECK(strcmp(buf1 + 1, buf2 + 1) < 0);
120 ATF_CHECK(strcmp(buf1 + 2, buf2 + 2) < 0);
121 ATF_CHECK(strcmp(buf1 + 3, buf2 + 3) == 0);
122
123 ATF_CHECK(strcmp(buf2 + 0, buf1 + 0) > 0);
124 ATF_CHECK(strcmp(buf2 + 1, buf1 + 1) > 0);
125 ATF_CHECK(strcmp(buf2 + 2, buf1 + 2) > 0);
126 ATF_CHECK(strcmp(buf2 + 3, buf1 + 3) == 0);
127 }
128
ATF_TP_ADD_TCS(tp)129 ATF_TP_ADD_TCS(tp)
130 {
131
132 ATF_TP_ADD_TC(tp, strcmp_basic);
133 ATF_TP_ADD_TC(tp, strcmp_simple);
134
135 return atf_no_error();
136 }
137