#include "common/common.h"#include "osdep/timer.h"#include "test_utils.h" #include <time.h>#include <limits.h> int main(void){    mp_time_init();     /* timekeeping */    {        int64_t now = mp_time_ns();        assert_true(now >= 0);         mp_sleep_ns(MP_TIME_MS_TO_NS(10));         int64_t now2 = mp_time_ns();        assert_true(now2 > now);         mp_sleep_ns(MP_TIME_MS_TO_NS(10));         double now3 = mp_time_sec();        assert_true(now3 > MP_TIME_NS_TO_S(now2));    }     /* arithmetic */    {        const int64_t test = 123456;        assert_int_equal(mp_time_ns_add(test, 1.0), test + MP_TIME_S_TO_NS(1));        assert_int_equal(mp_time_ns_add(test, DBL_MAX), INT64_MAX);        assert_int_equal(mp_time_ns_add(test, -1e13), 1);         const int64_t test2 = INT64_MAX - MP_TIME_S_TO_NS(20);        assert_int_equal(mp_time_ns_add(test2, 20.44), INT64_MAX);    }     return 0;}