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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
static struct
{
const char *fmt;
size_t min;
size_t max;
} tests[] =
{
{ "%2000Y", 2000, 4000 },
{ "%02000Y", 2000, 4000 },
{ "%_2000Y", 2000, 4000 },
{ "%-2000Y", 2000, 4000 },
};
#define ntests (sizeof (tests) / sizeof (tests[0]))
static int
do_test (void)
{
size_t cnt;
int result = 0;
time_t tnow = time (NULL);
struct tm *now = localtime (&tnow);
for (cnt = 0; cnt < ntests; ++cnt)
{
size_t size = 0;
int res;
char *buf = NULL;
do
{
size += 500;
buf = (char *) realloc (buf, size);
if (buf == NULL)
{
puts ("out of memory");
exit (1);
}
res = strftime (buf, size, tests[cnt].fmt, now);
if (res != 0)
break;
}
while (size < tests[cnt].max);
if (res == 0)
{
printf ("%Zu: %s: res == 0 despite size == %Zu\n",
cnt, tests[cnt].fmt, size);
result = 1;
}
else if (size < tests[cnt].min)
{
printf ("%Zu: %s: size == %Zu was enough\n",
cnt, tests[cnt].fmt, size);
result = 1;
}
else
printf ("%Zu: %s: size == %Zu: OK\n", cnt, tests[cnt].fmt, size);
free (buf);
}
struct tm ttm =
{
/* Initialize the fields which are needed in the tests. */
.tm_mday = 1,
.tm_hour = 2
};
const struct
{
const char *fmt;
const char *exp;
size_t n;
} ftests[] =
{
{ "%-e", "1", 1 },
{ "%-k", "2", 1 },
{ "%-l", "2", 1 },
};
#define nftests (sizeof (ftests) / sizeof (ftests[0]))
for (cnt = 0; cnt < nftests; ++cnt)
{
char buf[100];
size_t r = strftime (buf, sizeof (buf), ftests[cnt].fmt, &ttm);
if (r != ftests[cnt].n)
{
printf ("strftime(\"%s\") returned %zu not %zu\n",
ftests[cnt].fmt, r, ftests[cnt].n);
result = 1;
}
if (strcmp (buf, ftests[cnt].exp) != 0)
{
printf ("strftime(\"%s\") produced \"%s\" not \"%s\"\n",
ftests[cnt].fmt, buf, ftests[cnt].exp);
result = 1;
}
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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