async def test_waiting_until_off_wakes_when_turned_off(timer):
toggleset = ToggleSet()
toggle = await toggleset.make_toggle(True)
async def delayed_turning_off(delay: float):
await asyncio.sleep(delay)
await toggle.turn_to(False)
with timer:
asyncio.create_task(delayed_turning_off(0.05))
await asyncio.wait_for(toggleset.wait_for(False), timeout=1.0)
assert toggleset.is_off()
assert timer.seconds < 0.5 # approx. 0.05 plus some code overhead
async def test_waiting_until_off_fails_when_not_turned_off():
toggleset = ToggleSet()
await toggleset.make_toggle(True)
with pytest.raises(asyncio.TimeoutError):
await asyncio.wait_for(toggleset.wait_for(False), timeout=0.1)
assert toggleset.is_on()
