135 lines
4.3 KiB
C
135 lines
4.3 KiB
C
/**
|
|
* Copyright (c) 2026 Dominic Masters
|
|
*
|
|
* This software is released under the MIT License.
|
|
* https://opensource.org/licenses/MIT
|
|
*/
|
|
|
|
#include "dusktest.h"
|
|
#include <SDL2/SDL.h>
|
|
|
|
// Mocks
|
|
static uint64_t SDL_GETTICKS_TICKS = 0;
|
|
static bool_t SDL_GETTICKS_CALLED = false;
|
|
|
|
uint64_t SDL_GetTicks64(void) {
|
|
SDL_GETTICKS_CALLED = true;
|
|
return SDL_GETTICKS_TICKS;
|
|
}
|
|
|
|
// Mocked includes
|
|
#include "util/memory.h"
|
|
#include "time/time.h"
|
|
|
|
// Tests
|
|
static void test_timeInit(void **state) {
|
|
(void)state;
|
|
|
|
// Fill time with garbage
|
|
memorySet(&TIME, 0xFF, sizeof(TIME));
|
|
|
|
// Init
|
|
timeInit();
|
|
|
|
// Inital struct is set.
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.dynamicDelta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_false(TIME.dynamicUpdate);
|
|
}
|
|
|
|
static void test_timeUpdate(void **state) {
|
|
(void)state;
|
|
|
|
// Init first
|
|
timeInit();
|
|
|
|
// First time update, calls SDL_GetTicks
|
|
SDL_GETTICKS_TICKS = 14; // Simulate 15ms elapsed (just barely not one step)
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_true(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.014f, 0.0001f);
|
|
assert_float_equal(
|
|
TIME.dynamicTime, DUSK_TIME_STEP + TIME.dynamicDelta, 0.0001f
|
|
);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f); // Not changed
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP, 0.0001f); // Not changed
|
|
|
|
// Simulate total 16ms elapsed (2ms more)
|
|
SDL_GETTICKS_TICKS = 16;
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_false(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.002f, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP * 2, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP * 2, 0.0001f); // Stepped once
|
|
|
|
// Second test, half step (16 + 8)
|
|
SDL_GETTICKS_TICKS = 24;
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_true(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.008f, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP + 0.024f, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP * 2, 0.0001f);// Unchanged.
|
|
|
|
// Third test, another half step, leading to non dynamic update
|
|
SDL_GETTICKS_TICKS = 32;
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_false(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.008f, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP + 0.032f, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP * 3, 0.0001f);
|
|
|
|
// Fourth test, large jump, should only step once
|
|
SDL_GETTICKS_TICKS = 100; // Simulate 100ms elapsed
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_false(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.068f, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP + 0.100f, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP * 4, 0.0001f);
|
|
|
|
// Fifth test, despite a small time passing the game should not start
|
|
// trying to run ahead
|
|
SDL_GETTICKS_TICKS = 104; // Simulate 4ms elapsed
|
|
SDL_GETTICKS_CALLED = false;
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
assert_true(TIME.dynamicUpdate);
|
|
assert_float_equal(TIME.dynamicDelta, 0.004f, 0.0001f);
|
|
assert_float_equal(TIME.dynamicTime, DUSK_TIME_STEP + 0.104f, 0.0001f);
|
|
assert_float_equal(TIME.delta, DUSK_TIME_STEP, 0.0001f);
|
|
assert_float_equal(TIME.time, DUSK_TIME_STEP * 4, 0.0001f);
|
|
|
|
// Time can stand still if needed
|
|
SDL_GETTICKS_CALLED = false;
|
|
SDL_GETTICKS_TICKS = 104; // No time elapsed
|
|
timeUpdate();
|
|
assert_true(SDL_GETTICKS_CALLED);
|
|
|
|
// Time cannot go backwards
|
|
SDL_GETTICKS_TICKS = 90;
|
|
SDL_GETTICKS_CALLED = false;
|
|
expect_assert_failure(timeUpdate());
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
const struct CMUnitTest tests[] = {
|
|
cmocka_unit_test(test_timeInit),
|
|
cmocka_unit_test(test_timeUpdate),
|
|
};
|
|
return cmocka_run_group_tests(tests, NULL, NULL);
|
|
} |