scrcpy/app/tests/test_clock.c
Romain Vimont 2f03141e9f Add clock tests
The clock rolling sum is not trivial. Test it.
2021-07-14 14:54:22 +02:00

80 lines
2.2 KiB
C

#include "common.h"
#include <assert.h>
#include "clock.h"
void test_small_rolling_sum(void) {
struct sc_clock clock;
sc_clock_init(&clock);
assert(clock.count == 0);
assert(clock.left_sum.system == 0);
assert(clock.left_sum.stream == 0);
assert(clock.right_sum.system == 0);
assert(clock.right_sum.stream == 0);
sc_clock_update(&clock, 2, 3);
assert(clock.count == 1);
assert(clock.left_sum.system == 0);
assert(clock.left_sum.stream == 0);
assert(clock.right_sum.system == 2);
assert(clock.right_sum.stream == 3);
sc_clock_update(&clock, 10, 20);
assert(clock.count == 2);
assert(clock.left_sum.system == 2);
assert(clock.left_sum.stream == 3);
assert(clock.right_sum.system == 10);
assert(clock.right_sum.stream == 20);
sc_clock_update(&clock, 40, 80);
assert(clock.count == 3);
assert(clock.left_sum.system == 2);
assert(clock.left_sum.stream == 3);
assert(clock.right_sum.system == 50);
assert(clock.right_sum.stream == 100);
sc_clock_update(&clock, 400, 800);
assert(clock.count == 4);
assert(clock.left_sum.system == 12);
assert(clock.left_sum.stream == 23);
assert(clock.right_sum.system == 440);
assert(clock.right_sum.stream == 880);
}
void test_large_rolling_sum(void) {
const unsigned half_range = SC_CLOCK_RANGE / 2;
struct sc_clock clock1;
sc_clock_init(&clock1);
for (unsigned i = 0; i < 5 * half_range; ++i) {
sc_clock_update(&clock1, i, 2 * i + 1);
}
struct sc_clock clock2;
sc_clock_init(&clock2);
for (unsigned i = 3 * half_range; i < 5 * half_range; ++i) {
sc_clock_update(&clock2, i, 2 * i + 1);
}
assert(clock1.count == SC_CLOCK_RANGE);
assert(clock2.count == SC_CLOCK_RANGE);
// The values before the last SC_CLOCK_RANGE points in clock1 should have
// no impact
assert(clock1.left_sum.system == clock2.left_sum.system);
assert(clock1.left_sum.stream == clock2.left_sum.stream);
assert(clock1.right_sum.system == clock2.right_sum.system);
assert(clock1.right_sum.stream == clock2.right_sum.stream);
}
int main(int argc, char *argv[]) {
(void) argc;
(void) argv;
test_small_rolling_sum();
test_large_rolling_sum();
return 0;
};