websocket doesn't filter by streams

[lshamis]

Long story short

websocket doesn't filter by stream as args would suggest. https://github.com/aio-libs/aiodocker/blob/f1dbdc3d42147f4c2ab5e6802acf6f7d0f885be4/aiodocker/containers.py#L239

async def websocket(self, **params):
    if not params:
        params = {"stdin": True, "stdout": True, "stderr": True, "stream": True}
    ...

• Expected behaviour:

ws_out = await proc.websocket(stdin=False, stdout=True, stderr=False, stream=True)
ws_err = await proc.websocket(stdin=False, stdout=False, stderr=True, stream=True)

# proc prints "foobar" to stdout

msg = await ws_out.receive()  # msg.data == b"foobar"
msg = await ws_err.receive()  # msg.data != b"foobar"

• Actual behaviour:

msg = await ws_err.receive()  # msg.data == b"foobar"

How to reproduce

Get/Build a docker image that prints anything to stdout. Then

docker = aiodocker.Docker()
proc = await docker.containers.create_or_replace(name, config)
ws_out = await proc.websocket(stdin=False, stdout=True, stderr=False, stream=True)
ws_err = await proc.websocket(stdin=False, stdout=False, stderr=True, stream=True)
await proc.start()
print(await ws_err.receive())

Your environment

Linux