async def test_closed_unblock():
"""
GIVEN
Channel is open.
WHEN
Wait on closed, and Channel is closed while blocked.
EXPECT
Unblocks.
"""
q = asyncio.Queue()
ch = Channel(q)
asyncio.get_running_loop().call_later(0.05, ch.close)
await asyncio.wait_for(ch.closed(), timeout=0.1)
async def test_closed():
"""
GIVEN
Channel is open.
WHEN
Wait on closed.
EXPECT
Blocks.
"""
q = asyncio.Queue()
ch = Channel(q)
with pytest.raises(asyncio.TimeoutError):
await asyncio.wait_for(ch.closed(), timeout=0.05)