def test_remain_time_returns_positive_if_not_passed_duration_sec(
self, duration):
timer = Timer(duration=duration)
remain_time = timer.remain_time()
assert 0 < remain_time < duration
with freeze_time(datetime.datetime.utcnow() +
datetime.timedelta(seconds=duration)) as frozen_time:
frozen_time.tick(TICK_INTERVAL)
remain_time = timer.remain_time()
assert remain_time == 0
def test_reset_timer_restores_its_start_time(self):
duration = 5
offset = 1
timer = Timer(duration=duration)
with freeze_time(datetime.datetime.utcnow() + datetime.timedelta(
seconds=duration - offset)) as frozen_time:
frozen_time.tick(TICK_INTERVAL)
assert 0 < timer.remain_time() < offset
timer.reset()
frozen_time.tick(TICK_INTERVAL)
assert offset < timer.remain_time() < duration