async def test_streaming_error(monkeypatch):
alice, _ = MultiplexerPairFactory()
msg = "Multiplexing error"
exc = Exception(msg)
async def multiplexing():
alice._started_streaming.set()
raise exc
monkeypatch.setattr(alice, '_do_multiplexing', multiplexing)
await alice.stream_in_background()
with pytest.raises(Exception, match=msg):
await alice.wait_streaming_finished()
assert alice.get_streaming_error() == exc
with pytest.raises(Exception, match=msg):
alice.raise_if_streaming_error()
async def test_stream_in_background():
alice, _ = MultiplexerPairFactory()
assert not alice.is_streaming
assert not alice.is_closing
with pytest.raises(Exception):
await alice.wait_streaming()
await alice.stream_in_background()
assert alice.is_streaming
await alice.stop_streaming()
assert not alice.is_streaming
assert alice.is_closing
assert isinstance(alice.get_streaming_error(), asyncio.CancelledError)
with pytest.raises(asyncio.CancelledError):
await alice.wait_streaming_finished()
with pytest.raises(asyncio.CancelledError):
alice.raise_if_streaming_error()