async def test_with_zero_time_and_event_initially_set(timer):
event = asyncio.Event()
event.set()
with timer:
unslept = await asyncio.wait_for(sleep_or_wait(0, event), timeout=1.0)
assert timer.seconds <= 0.01
assert not unslept # 0/None; undefined for such case: both goals reached.
async def test_with_zero_time_and_event_initially_cleared(timer):
event = asyncio.Event()
event.clear()
with timer:
unslept = await asyncio.wait_for(sleep_or_wait(0, event), timeout=1.0)
assert timer.seconds <= 0.01
assert unslept is None
async def test_by_event_set_before_time_comes(timer):
event = asyncio.Event()
asyncio.get_running_loop().call_later(0.07, event.set)
with timer:
unslept = await asyncio.wait_for(sleep_or_wait(0.10, event),
timeout=1.0)
assert unslept is not None
assert 0.02 <= unslept <= 0.04
assert 0.06 <= timer.seconds <= 0.08
async def test_the_only_delay_is_awaited(timer):
with timer:
unslept = await asyncio.wait_for(sleep_or_wait(0.10), timeout=1.0)
assert 0.10 <= timer.seconds < 0.11
assert unslept is None
async def test_no_delays_skip_sleeping(timer, delays):
with timer:
unslept = await asyncio.wait_for(sleep_or_wait(delays), timeout=1.0)
assert timer.seconds < 0.01
assert unslept is None
async def test_specific_delays_only_are_awaited(timer):
with timer:
unslept = await asyncio.wait_for(sleep_or_wait([0.10, None]),
timeout=1.0)
assert 0.10 <= timer.seconds < 0.11
assert unslept is None