def test_sleep_until_time_in_past(default_context, clock_type):
clock = Clock(clock_type=clock_type)
sleep_duration = Duration(seconds=-1)
start = clock.now()
assert clock.sleep_until(clock.now() + sleep_duration)
stop = clock.now()
assert stop - start < A_SMALL_AMOUNT_OF_TIME
def test_sleep_until_basic(default_context, clock_type):
clock = Clock(clock_type=clock_type)
sleep_duration = Duration(seconds=0.1)
start = clock.now()
assert clock.sleep_until(clock.now() + sleep_duration)
stop = clock.now()
assert stop - start >= sleep_duration
def test_sleep_until_non_default_context(non_default_context):
clock = Clock()
assert clock.sleep_until(clock.now() + Duration(seconds=0.1),
context=non_default_context)
def test_sleep_until_invalid_context():
clock = Clock()
with pytest.raises(NotInitializedException):
clock.sleep_until(clock.now() + Duration(seconds=0.1),
context=Context())
def test_sleep_until_mismatched_clock_type(default_context):
clock = Clock(clock_type=ClockType.SYSTEM_TIME)
with pytest.raises(ValueError, match='.*clock type does not match.*'):
clock.sleep_until(Time(clock_type=ClockType.STEADY_TIME))
