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#include "../libft.h"
#include "test_utils.h"
#include <bsd/string.h>
static void
_s_ft_strchr_null (void)
{
_s_sink = (size_t)ft_strchr (NULL, 'a');
}
static void
_s_libc_strchr_null (void)
{
_s_sink = (size_t)strchr (NULL, 'a');
}
static void
_s_ft_strrchr_null (void)
{
_s_sink = (size_t)ft_strrchr (NULL, 'a');
}
static void
_s_libc_strrchr_null (void)
{
_s_sink = (size_t)strrchr (NULL, 'a');
}
static void
_s_ft_strnstr_null_big (void)
{
_s_sink = (size_t)ft_strnstr (NULL, "abc", 10);
}
static void
_s_libc_strnstr_null_big (void)
{
_s_sink = (size_t)strnstr (NULL, "abc", 10);
}
static void
_s_ft_strnstr_null_little (void)
{
_s_sink = (size_t)ft_strnstr ("abc", NULL, 10);
}
static void
_s_libc_strnstr_null_little (void)
{
_s_sink = (size_t)strnstr ("abc", NULL, 10);
}
/* ======================================
* strchr
* ====================================== */
static void
_s_test_strchr (void)
{
char buf[] = "hello world";
int i;
char label[64];
printf ("-- strchr --\n");
/* NULL */
_s_check_both_crash ("strchr NULL", _s_ft_strchr_null, _s_libc_strchr_null);
/* find first occurrence */
_s_check ("find 'l'", ft_strchr (buf, 'l') == strchr (buf, 'l'));
/* find first char */
_s_check ("find 'h'", ft_strchr (buf, 'h') == strchr (buf, 'h'));
/* find last char */
_s_check ("find 'd'", ft_strchr (buf, 'd') == strchr (buf, 'd'));
/* not found */
_s_check ("not found 'z'", ft_strchr (buf, 'z') == strchr (buf, 'z'));
/* find null terminator */
_s_check ("find '\\0'", ft_strchr (buf, '\0') == strchr (buf, '\0'));
/* empty string */
_s_check ("empty + 'a'", ft_strchr ("", 'a') == strchr ("", 'a'));
_s_check ("empty + '\\0'", ft_strchr ("", '\0') == strchr ("", '\0'));
/* int truncation to char */
_s_check ("int truncation",
ft_strchr (buf, 'h' + 256) == strchr (buf, 'h' + 256));
/* all printable ASCII */
for (i = 32; i < 127; i++)
{
snprintf (label, sizeof (label), "char %d in buf", i);
_s_check (label, ft_strchr (buf, i) == strchr (buf, i));
}
/* randomized */
srand (time (NULL));
for (i = 0; i < 50; i++)
{
char rnd[128];
int len = rand () % 127 + 1;
int j;
int c;
for (j = 0; j < len; j++)
rnd[j] = 'A' + rand () % 52;
rnd[len] = '\0';
c = 'A' + rand () % 52;
snprintf (label, sizeof (label), "random len=%d c=%c", len, c);
_s_check (label, ft_strchr (rnd, c) == strchr (rnd, c));
}
}
/* ======================================
* strrchr
* ====================================== */
static void
_s_test_strrchr (void)
{
char buf[] = "hello world";
int i;
char label[64];
printf ("-- strrchr --\n");
/* NULL */
_s_check_both_crash ("strrchr NULL", _s_ft_strrchr_null,
_s_libc_strrchr_null);
/* find last occurrence */
_s_check ("find 'l'", ft_strrchr (buf, 'l') == strrchr (buf, 'l'));
/* only one occurrence */
_s_check ("find 'w'", ft_strrchr (buf, 'w') == strrchr (buf, 'w'));
/* find first char */
_s_check ("find 'h'", ft_strrchr (buf, 'h') == strrchr (buf, 'h'));
/* find last char */
_s_check ("find 'd'", ft_strrchr (buf, 'd') == strrchr (buf, 'd'));
/* not found */
_s_check ("not found 'z'", ft_strrchr (buf, 'z') == strrchr (buf, 'z'));
/* find null terminator */
_s_check ("find '\\0'", ft_strrchr (buf, '\0') == strrchr (buf, '\0'));
/* empty string */
_s_check ("empty + 'a'", ft_strrchr ("", 'a') == strrchr ("", 'a'));
_s_check ("empty + '\\0'", ft_strrchr ("", '\0') == strrchr ("", '\0'));
/* int truncation to char */
_s_check ("int truncation",
ft_strrchr (buf, 'l' + 256) == strrchr (buf, 'l' + 256));
/* multiple occurrences */
_s_check ("'o' last",
ft_strrchr ("foo bar boo", 'o') == strrchr ("foo bar boo", 'o'));
/* all printable ASCII */
for (i = 32; i < 127; i++)
{
snprintf (label, sizeof (label), "char %d in buf", i);
_s_check (label, ft_strrchr (buf, i) == strrchr (buf, i));
}
/* randomized */
for (i = 0; i < 50; i++)
{
char rnd[128];
int len = rand () % 127 + 1;
int j;
int c;
for (j = 0; j < len; j++)
rnd[j] = 'A' + rand () % 52;
rnd[len] = '\0';
c = 'A' + rand () % 52;
snprintf (label, sizeof (label), "random len=%d c=%c", len, c);
_s_check (label, ft_strrchr (rnd, c) == strrchr (rnd, c));
}
}
/* ======================================
* strnstr
* ====================================== */
static void
_s_test_strnstr (void)
{
char hay[] = "hello world, hello earth";
printf ("-- strnstr --\n");
/* NULL */
_s_check_both_crash ("strnstr NULL big", _s_ft_strnstr_null_big,
_s_libc_strnstr_null_big);
_s_check_both_crash ("strnstr NULL little", _s_ft_strnstr_null_little,
_s_libc_strnstr_null_little);
/* empty needle */
_s_check ("empty needle", ft_strnstr (hay, "", 24) == strnstr (hay, "", 24));
/* empty haystack */
_s_check ("empty haystack",
ft_strnstr ("", "abc", 0) == strnstr ("", "abc", 0));
_s_check ("both empty", ft_strnstr ("", "", 0) == strnstr ("", "", 0));
/* basic find */
_s_check ("find 'world'",
ft_strnstr (hay, "world", 24) == strnstr (hay, "world", 24));
/* find at start */
_s_check ("find 'hello'",
ft_strnstr (hay, "hello", 24) == strnstr (hay, "hello", 24));
/* find at end */
_s_check ("find 'earth'",
ft_strnstr (hay, "earth", 24) == strnstr (hay, "earth", 24));
/* not found */
_s_check ("not found 'xyz'",
ft_strnstr (hay, "xyz", 24) == strnstr (hay, "xyz", 24));
/* needle longer than len */
_s_check ("needle beyond len",
ft_strnstr (hay, "world", 8) == strnstr (hay, "world", 8));
/* len=0 */
_s_check ("len=0",
ft_strnstr (hay, "hello", 0) == strnstr (hay, "hello", 0));
/* exact match at boundary */
_s_check ("exact boundary",
ft_strnstr (hay, "world", 11) == strnstr (hay, "world", 11));
/* one short of match */
_s_check ("one short",
ft_strnstr (hay, "world", 10) == strnstr (hay, "world", 10));
/* single char needle */
_s_check ("single char 'w'",
ft_strnstr (hay, "w", 24) == strnstr (hay, "w", 24));
/* needle same as haystack */
_s_check ("needle == haystack",
ft_strnstr ("abc", "abc", 3) == strnstr ("abc", "abc", 3));
/* needle longer than haystack */
_s_check ("needle > haystack",
ft_strnstr ("ab", "abc", 3) == strnstr ("ab", "abc", 3));
/* partial match then fail */
_s_check ("partial match",
ft_strnstr ("aab", "ab", 3) == strnstr ("aab", "ab", 3));
/* randomized */
for (int i = 0; i < 50; i++)
{
char rbig[128];
char rlittle[16];
int blen = rand () % 100 + 20;
int llen = rand () % 10 + 1;
size_t n;
int j;
char label[64];
for (j = 0; j < blen; j++)
rbig[j] = 'A' + rand () % 4;
rbig[blen] = '\0';
for (j = 0; j < llen; j++)
rlittle[j] = 'A' + rand () % 4;
rlittle[llen] = '\0';
n = rand () % (blen + 10);
snprintf (label, sizeof (label), "random blen=%d llen=%d n=%zu", blen,
llen, n);
_s_check (label,
ft_strnstr (rbig, rlittle, n) == strnstr (rbig, rlittle, n));
}
}
int
main (void)
{
printf ("=== search functions ===\n");
_s_test_strchr ();
_s_test_strrchr ();
_s_test_strnstr ();
_s_print_results ();
return (_s_fail != 0);
}
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