public void ShouldHandleUnregisteredMessagesOnlyOnListener()
{
//Given
var message = new SecondMessage();
_target.AddListener(_listeners.Add);
//When
_target.Send(message);
//Then
Assert.AreEqual(0, _queues.Count);
Assert.AreEqual(0, _topics.Count);
Assert.AreEqual(1, _listeners.Count);
var received = _listeners[0];
Assert.AreEqual(SerializeObject(message), SerializeObject(received));
Assert.AreNotSame(message, received);
}