Socket.beginReceive

I have a socketmanager class that manages my socket communication.

I am trying figure out a game plan on how to test it. Any ideas or patterns out there for unit testing socket communication?

I have 4 events, connected, disconnected, data arrived, and error. A constructor that takes the connection parameters and a connect method that connects to the server.

Do I make a unit test class that instantiates the class and wires up the events then connect to the actual server I am testing. I was hoping I could avoid that as it goes against the whole separation of concerns.

_ClientSocket.BeginReceive(thisSockectPacket.dataBuffer,
0, thisSockectPacket.dataBuffer.Length,
                  SocketFlags.None,
                  CallBack,
                  thisSockectPacket);

How would I mock this?

Thanks in advance.

Bryan