Add mplex tests and fix error in SwarmConn.close

libp2p/stream_muxer/mplex/mplex.py

@@ -29,9 +29,6 @@ class Mplex(IMuxedConn):
 
     secured_conn: ISecureConn
     peer_id: ID
-    # TODO: `dataIn` in go implementation. Should be size of 8.
-    # TODO: Also, `dataIn` is closed indicating EOF in Go. We don't have similar strategies
-    #   to let the `MplexStream`s know that EOF arrived (#235).
     next_channel_id: int
     streams: Dict[StreamID, MplexStream]
     streams_lock: asyncio.Lock

libp2p/stream_muxer/mplex/mplex_stream.py

@@ -24,6 +24,7 @@ class MplexStream(IMuxedStream):
 
     close_lock: asyncio.Lock
 
+    # NOTE: `dataIn` is size of 8 in Go implementation.
     incoming_data: "asyncio.Queue[bytes]"
 
     event_local_closed: asyncio.Event