public IEnumerator UnRegisterMessage1()
{
Action <WovenTestMessage> func = Substitute.For <Action <WovenTestMessage> >();
connectionToClient.RegisterHandler(func);
connectionToClient.UnregisterHandler <WovenTestMessage>();
connectionToServer.Send(message);
yield return(null);
func.Received(0).Invoke(
Arg.Any <WovenTestMessage>());
}