def test_countdown_timer_non_blocking():
timer = CountdownTimer(0)
assert timer.is_non_blocking
assert timer.time_left() == 0
for arg, expected_duration in [(2, 2.0), (0.5, 0.5), (1 * u.second, 1.0)]:
timer = CountdownTimer(arg)
assert timer.duration == expected_duration
def test_countdown_timer_bad_input():
with pytest.raises(ValueError):
assert CountdownTimer('d')
with pytest.raises(ValueError):
assert CountdownTimer(current_time())
with pytest.raises(AssertionError):
assert CountdownTimer(-1)
def test_countdown_timer_sleep():
count_time = 1
timer = CountdownTimer(count_time)
assert timer.time_left() > 0
assert timer.expired() is False
assert timer.is_non_blocking is False
counter = 0.
while timer.time_left() > 0.5:
assert timer.sleep(max_sleep=0.1)
counter += 0.1
# Wait for the remaining half second
assert timer.sleep() is False
assert counter == pytest.approx(0.5)
assert timer.time_left() == 0
assert timer.expired() is True
assert timer.sleep() is False
def test_countdown_timer():
count_time = 1
timer = CountdownTimer(count_time)
assert timer.time_left() > 0
assert timer.expired() is False
assert timer.is_non_blocking is False
counter = 0.
while timer.time_left() > 0:
time.sleep(0.1)
counter += 0.1
assert counter == pytest.approx(1)
assert timer.time_left() == 0
assert timer.expired() is True