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/* $NetBSD: t_strcmp.c,v 1.4 2012/03/25 08:17:54 joerg Exp $ */
/*
* Written by J.T. Conklin <jtc@acorntoolworks.com>
* Public domain.
*/
#include <atf-c.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
ATF_TC(strcmp_basic);
ATF_TC_HEAD(strcmp_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "Test strcmp(3) results, #1");
}
ATF_TC_BODY(strcmp_basic, tc)
{
/* try to trick the compiler */
int (*f)(const char *, const char *s) = strcmp;
unsigned int a0, a1, t;
char buf0[64];
char buf1[64];
int ret;
struct tab {
const char* val0;
const char* val1;
int ret;
};
const struct tab tab[] = {
{ "", "", 0 },
{ "a", "a", 0 },
{ "a", "b", -1 },
{ "b", "a", +1 },
{ "", "a", -1 },
{ "a", "", +1 },
{ "aa", "aa", 0 },
{ "aa", "ab", -1 },
{ "ab", "aa", +1 },
{ "a", "aa", -1 },
{ "aa", "a", +1 },
{ "aaa", "aaa", 0 },
{ "aaa", "aab", -1 },
{ "aab", "aaa", +1 },
{ "aa", "aaa", -1 },
{ "aaa", "aa", +1 },
{ "aaaa", "aaaa", 0 },
{ "aaaa", "aaab", -1 },
{ "aaab", "aaaa", +1 },
{ "aaa", "aaaa", -1 },
{ "aaaa", "aaa", +1 },
{ "aaaaa", "aaaaa", 0 },
{ "aaaaa", "aaaab", -1 },
{ "aaaab", "aaaaa", +1 },
{ "aaaa", "aaaaa", -1 },
{ "aaaaa", "aaaa", +1 },
{ "aaaaaa", "aaaaaa", 0 },
{ "aaaaaa", "aaaaab", -1 },
{ "aaaaab", "aaaaaa", +1 },
{ "aaaaa", "aaaaaa", -1 },
{ "aaaaaa", "aaaaa", +1 },
};
for (a0 = 0; a0 < sizeof(long); ++a0) {
for (a1 = 0; a1 < sizeof(long); ++a1) {
for (t = 0; t < __arraycount(tab); ++t) {
memcpy(&buf0[a0], tab[t].val0,
strlen(tab[t].val0) + 1);
memcpy(&buf1[a1], tab[t].val1,
strlen(tab[t].val1) + 1);
ret = f(&buf0[a0], &buf1[a1]);
if ((ret == 0 && tab[t].ret != 0) ||
(ret < 0 && tab[t].ret >= 0) ||
(ret > 0 && tab[t].ret <= 0)) {
fprintf(stderr, "a0 %d, a1 %d, t %d\n",
a0, a1, t);
fprintf(stderr, "\"%s\" \"%s\" %d\n",
&buf0[a0], &buf1[a1], ret);
atf_tc_fail("Check stderr for details");
}
}
}
}
}
ATF_TC(strcmp_simple);
ATF_TC_HEAD(strcmp_simple, tc)
{
atf_tc_set_md_var(tc, "descr", "Test strcmp(3) results, #2");
}
ATF_TC_BODY(strcmp_simple, tc)
{
char buf1[10] = "xxx";
char buf2[10] = "xxy";
ATF_CHECK(strcmp(buf1, buf1) == 0);
ATF_CHECK(strcmp(buf2, buf2) == 0);
ATF_CHECK(strcmp("x\xf6x", "xox") > 0);
ATF_CHECK(strcmp("xxx", "xxxyyy") < 0);
ATF_CHECK(strcmp("xxxyyy", "xxx") > 0);
ATF_CHECK(strcmp(buf1 + 0, buf2 + 0) < 0);
ATF_CHECK(strcmp(buf1 + 1, buf2 + 1) < 0);
ATF_CHECK(strcmp(buf1 + 2, buf2 + 2) < 0);
ATF_CHECK(strcmp(buf1 + 3, buf2 + 3) == 0);
ATF_CHECK(strcmp(buf2 + 0, buf1 + 0) > 0);
ATF_CHECK(strcmp(buf2 + 1, buf1 + 1) > 0);
ATF_CHECK(strcmp(buf2 + 2, buf1 + 2) > 0);
ATF_CHECK(strcmp(buf2 + 3, buf1 + 3) == 0);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, strcmp_basic);
ATF_TP_ADD_TC(tp, strcmp_simple);
return atf_no_error();
}
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