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#include "../libft.h"
#include "test_utils.h"
static void
_s_call_ft_strlen_null (void)
{
_s_sink = ft_strlen (NULL);
}
static void
_s_call_strlen_null (void)
{
_s_sink = strlen (NULL);
}
static void
_s_test_empty (void)
{
printf ("-- empty string --\n");
_s_check_eq ("ft_strlen", ft_strlen (""), 0);
_s_check_eq ("libc strlen", strlen (""), 0);
}
static void
_s_test_null (void)
{
int ft_crashed;
int libc_crashed;
printf ("-- NULL --\n");
ft_crashed = _s_crashes (_s_call_ft_strlen_null);
libc_crashed = _s_crashes (_s_call_strlen_null);
if (ft_crashed && libc_crashed)
{
printf (" PASS both crash on NULL\n");
_s_pass++;
}
else if (ft_crashed == libc_crashed)
{
printf (" PASS both behave the same on NULL (no crash)\n");
_s_pass++;
}
else
{
printf (" FAIL ft_crashed=%d libc_crashed=%d\n", ft_crashed,
libc_crashed);
_s_fail++;
}
}
static void
_s_test_random (int n)
{
int i;
int len;
char *buf;
char label[64];
printf ("-- %d randomized tests --\n", n);
for (i = 0; i < n; i++)
{
len = rand () % 10000;
buf = malloc (len + 1);
if (!buf)
{
printf (" FAIL malloc\n");
_s_fail++;
return;
}
memset (buf, 'A' + (i % 26), len);
buf[len] = '\0';
snprintf (label, sizeof (label), "random len=%d", len);
_s_check_eq (label, ft_strlen (buf), strlen (buf));
free (buf);
}
}
static void
_s_test_large (void)
{
size_t len;
char *buf;
printf ("-- large string (100 MB) --\n");
len = 100 * 1024 * 1024;
buf = malloc (len + 1);
if (!buf)
{
printf (" SKIP could not allocate %zu bytes\n", len);
return;
}
memset (buf, 'X', len);
buf[len] = '\0';
_s_check_eq ("100 MB string", ft_strlen (buf), len);
free (buf);
}
int
main (void)
{
srand (time (NULL));
printf ("=== ft_strlen ===\n");
_s_test_empty ();
_s_test_null ();
_s_test_random (100);
_s_test_large ();
_s_print_results ();
return (_s_fail != 0);
}
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