async def test_sync_join(self):
p = BarrierState(reply_to='rt')
assert not p.pending
assert p.size == 0
await self.adder(p)
await self.fulfiller(p)
await self.finalizer(p, 0.0)
await self.joiner(p)
assert p.get_nowait()
async def test_get_nowait__exhaust_sentinels(self):
p = BarrierState(reply_to='rt')
for _ in range(20):
p._results.put_nowait(None)
with pytest.raises(asyncio.QueueEmpty):
p.get_nowait()