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#include "libft.h"
#include "test_utils.h"
_S_CRASH (ft_split_null, ft_split (NULL, ' '))
static void
_s_free_split (char **arr)
{
size_t i;
if (!arr)
return;
i = 0;
while (arr[i])
free (arr[i++]);
free (arr);
}
static size_t
_s_arr_len (char **arr)
{
size_t n;
n = 0;
while (arr[n])
n++;
return (n);
}
static void
_s_test_split (void)
{
int i;
char label[128];
_s_section ("ft_split");
/* NULL crashes */
_s_check ("NULL crashes", _s_crashes (_s_crash_ft_split_null));
/* basic split */
{
char **arr = ft_split ("hello world foo", ' ');
_s_check ("basic count", arr && _s_arr_len (arr) == 3);
_s_check ("basic [0]", arr && strcmp (arr[0], "hello") == 0);
_s_check ("basic [1]", arr && strcmp (arr[1], "world") == 0);
_s_check ("basic [2]", arr && strcmp (arr[2], "foo") == 0);
_s_check ("basic NULL-term", arr && arr[3] == NULL);
_s_free_split (arr);
}
/* leading delimiters */
{
char **arr = ft_split (" hello", ' ');
_s_check ("leading delim count", arr && _s_arr_len (arr) == 1);
_s_check ("leading delim [0]", arr && strcmp (arr[0], "hello") == 0);
_s_free_split (arr);
}
/* trailing delimiters */
{
char **arr = ft_split ("hello ", ' ');
_s_check ("trailing delim count", arr && _s_arr_len (arr) == 1);
_s_check ("trailing delim [0]", arr && strcmp (arr[0], "hello") == 0);
_s_free_split (arr);
}
/* consecutive delimiters */
{
char **arr = ft_split ("a,,b,,c", ',');
_s_check ("consec count", arr && _s_arr_len (arr) == 3);
_s_check ("consec [0]", arr && strcmp (arr[0], "a") == 0);
_s_check ("consec [1]", arr && strcmp (arr[1], "b") == 0);
_s_check ("consec [2]", arr && strcmp (arr[2], "c") == 0);
_s_free_split (arr);
}
/* no delimiter in string */
{
char **arr = ft_split ("hello", ' ');
_s_check ("no delim count", arr && _s_arr_len (arr) == 1);
_s_check ("no delim [0]", arr && strcmp (arr[0], "hello") == 0);
_s_free_split (arr);
}
/* empty string */
{
char **arr = ft_split ("", ' ');
_s_check ("empty count", arr && _s_arr_len (arr) == 0);
_s_check ("empty NULL-term", arr && arr[0] == NULL);
_s_free_split (arr);
}
/* string is only delimiters */
{
char **arr = ft_split (" ", ' ');
_s_check ("only delims count", arr && _s_arr_len (arr) == 0);
_s_check ("only delims NULL-term", arr && arr[0] == NULL);
_s_free_split (arr);
}
/* single character string, is delimiter */
{
char **arr = ft_split (",", ',');
_s_check ("single delim count", arr && _s_arr_len (arr) == 0);
_s_free_split (arr);
}
/* single character string, not delimiter */
{
char **arr = ft_split ("a", ',');
_s_check ("single non-delim count", arr && _s_arr_len (arr) == 1);
_s_check ("single non-delim [0]", arr && strcmp (arr[0], "a") == 0);
_s_free_split (arr);
}
/* delimiter '\0' — whole string is one word */
{
char **arr = ft_split ("hello", '\0');
_s_check ("nul delim count", arr && _s_arr_len (arr) == 1);
_s_check ("nul delim [0]", arr && strcmp (arr[0], "hello") == 0);
_s_free_split (arr);
}
/* each word is independently allocated */
{
char **arr = ft_split ("a b c", ' ');
_s_check ("independent ptrs", arr && arr[0] != arr[1] && arr[1] != arr[2]);
_s_free_split (arr);
}
/* randomized: build string from words, split, verify */
for (i = 0; i < _S_RAND_ITERS; i++)
{
int nwords = rand () % 10 + 1;
int pads = rand () % 5;
char **words = malloc (nwords * sizeof (char *));
char *src;
char **arr;
size_t total;
int j, k;
int ok;
if (!words)
continue;
/* generate random words (letters only) */
total = 0;
ok = 1;
for (j = 0; j < nwords; j++)
{
int wlen = rand () % 20 + 1;
words[j] = malloc (wlen + 1);
if (!words[j])
{
ok = 0;
break;
}
for (k = 0; k < wlen; k++)
words[j][k] = 'A' + rand () % 26;
words[j][wlen] = '\0';
total += wlen;
}
if (!ok)
{
for (k = 0; k < j; k++)
free (words[k]);
free (words);
continue;
}
/* build: pads + word + delimiters + ... + pads */
total += (nwords - 1) + 2 * pads;
src = malloc (total + 1);
if (!src)
{
for (j = 0; j < nwords; j++)
free (words[j]);
free (words);
continue;
}
k = 0;
for (j = 0; j < pads; j++)
src[k++] = ',';
for (j = 0; j < nwords; j++)
{
size_t wlen = strlen (words[j]);
memcpy (src + k, words[j], wlen);
k += wlen;
if (j < nwords - 1)
src[k++] = ',';
}
for (j = 0; j < pads; j++)
src[k++] = ',';
src[k] = '\0';
arr = ft_split (src, ',');
snprintf (label, sizeof (label), "random nwords=%d pads=%d", nwords,
pads);
if (!arr || (int)_s_arr_len (arr) != nwords)
{
_s_check (label, 0);
}
else
{
int match = 1;
for (j = 0; j < nwords; j++)
{
if (strcmp (arr[j], words[j]) != 0)
{
match = 0;
break;
}
}
_s_check (label, match && arr[nwords] == NULL);
}
for (j = 0; j < nwords; j++)
free (words[j]);
free (words);
free (src);
_s_free_split (arr);
}
}
int
main (void)
{
srand (time (NULL));
_s_test_split ();
_s_print_results ();
return (_s_fail != 0);
}
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