public void MonitorActor_SubjectActorUp_NoTarget_Silient()
{
var discoveryActor = ActorOf(Props.Create(() => new ClusterActorDiscovery(null)));
discoveryActor.Tell(new ClusterActorDiscoveryMessage.MonitorActor("test"));
discoveryActor.Tell(new ClusterActorDiscoveryMessage.RegisterActor(TestActor, "no"));
ExpectNoMsg();
}