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#include "libft.h"
#include "test_utils.h"
_S_CRASH (ft_strjoin_null_s1, ft_strjoin (NULL, "hello"))
_S_CRASH (ft_strjoin_null_s2, ft_strjoin ("hello", NULL))
_S_CRASH (ft_strjoin_null_both, ft_strjoin (NULL, NULL))
static void
_s_test_strjoin (void)
{
int i;
char label[128];
_s_section ("ft_strjoin");
/* NULL crashes */
_s_check ("NULL s1 crashes", _s_crashes (_s_crash_ft_strjoin_null_s1));
_s_check ("NULL s2 crashes", _s_crashes (_s_crash_ft_strjoin_null_s2));
_s_check ("NULL both crashes", _s_crashes (_s_crash_ft_strjoin_null_both));
/* two normal strings */
{
char *p = ft_strjoin ("hello ", "world");
_s_check ("basic", p && strcmp (p, "hello world") == 0);
free (p);
}
/* first string empty */
{
char *p = ft_strjoin ("", "world");
_s_check ("s1 empty", p && strcmp (p, "world") == 0);
free (p);
}
/* second string empty */
{
char *p = ft_strjoin ("hello", "");
_s_check ("s2 empty", p && strcmp (p, "hello") == 0);
free (p);
}
/* both empty */
{
char *p = ft_strjoin ("", "");
_s_check ("both empty", p && strcmp (p, "") == 0);
free (p);
}
/* returns independent copy */
{
char s1[] = "abc";
char s2[] = "def";
char *p = ft_strjoin (s1, s2);
_s_check ("independent ptr", p && p != s1 && p != s2);
s1[0] = 'X';
_s_check ("mutation safe", p[0] == 'a');
free (p);
}
/* randomized */
for (i = 0; i < _S_RAND_ITERS; i++)
{
int len1 = rand () % 200 + 1;
int len2 = rand () % 200 + 1;
char *s1 = malloc (len1 + 1);
char *s2 = malloc (len2 + 1);
char *expected;
char *p;
int j;
if (!s1 || !s2)
{
free (s1);
free (s2);
continue;
}
for (j = 0; j < len1; j++)
s1[j] = 'A' + rand () % 26;
s1[len1] = '\0';
for (j = 0; j < len2; j++)
s2[j] = 'a' + rand () % 26;
s2[len2] = '\0';
expected = malloc (len1 + len2 + 1);
if (!expected)
{
free (s1);
free (s2);
continue;
}
memcpy (expected, s1, len1);
memcpy (expected + len1, s2, len2 + 1);
p = ft_strjoin (s1, s2);
snprintf (label, sizeof (label), "random len1=%d len2=%d", len1, len2);
_s_check (label, p && strcmp (p, expected) == 0);
free (s1);
free (s2);
free (expected);
free (p);
}
}
int
main (void)
{
srand (time (NULL));
_s_test_strjoin ();
_s_print_results ();
return (_s_fail != 0);
}
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