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#include "test_def.h"
#include "lwip/def.h"
#define MAGIC_UNTOUCHED_BYTE 0x7a
#define TEST_BUFSIZE 32
#define GUARD_SIZE 4
/* Setups/teardown functions */
static void
def_setup(void)
{
}
static void
def_teardown(void)
{
}
static void
def_check_range_untouched(const char *buf, size_t len)
{
size_t i;
for (i = 0; i < len; i++) {
fail_unless(buf[i] == (char)MAGIC_UNTOUCHED_BYTE);
}
}
static void test_def_itoa(int number, const char *expected)
{
char buf[TEST_BUFSIZE];
char *test_buf = &buf[GUARD_SIZE];
size_t exp_len = strlen(expected);
fail_unless(exp_len + 4 < (TEST_BUFSIZE - (2 * GUARD_SIZE)));
memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf));
lwip_itoa(test_buf, exp_len + 1, number);
def_check_range_untouched(buf, GUARD_SIZE);
fail_unless(test_buf[exp_len] == 0);
fail_unless(!memcmp(test_buf, expected, exp_len));
def_check_range_untouched(&test_buf[exp_len + 1], TEST_BUFSIZE - GUARD_SIZE - exp_len - 1);
/* check with too small buffer */
memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf));
lwip_itoa(test_buf, exp_len, number);
def_check_range_untouched(buf, GUARD_SIZE);
def_check_range_untouched(&test_buf[exp_len + 1], TEST_BUFSIZE - GUARD_SIZE - exp_len - 1);
/* check with too large buffer */
memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf));
lwip_itoa(test_buf, exp_len + 4, number);
def_check_range_untouched(buf, GUARD_SIZE);
fail_unless(test_buf[exp_len] == 0);
fail_unless(!memcmp(test_buf, expected, exp_len));
def_check_range_untouched(&test_buf[exp_len + 4], TEST_BUFSIZE - GUARD_SIZE - exp_len - 4);
}
START_TEST(test_def_lwip_itoa)
{
LWIP_UNUSED_ARG(_i);
test_def_itoa(0, "0");
test_def_itoa(1, "1");
test_def_itoa(-1, "-1");
test_def_itoa(15, "15");
test_def_itoa(-15, "-15");
test_def_itoa(156, "156");
test_def_itoa(1192, "1192");
test_def_itoa(-156, "-156");
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
def_suite(void)
{
testfunc tests[] = {
TESTFUNC(test_def_lwip_itoa)
};
return create_suite("DEF", tests, sizeof(tests)/sizeof(testfunc), def_setup, def_teardown);
}
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