private void Given_That_A_TestMessageHandler_Has_Been_Registered()
{
_testMessageHandler = Substitute.For<IHandle>();
_testMessageHandler.MessageType.Returns(typeof(TestMessage));
_messageBus = new SimpleMessageBus(new [] {_testMessageHandler});
}
private void Given_That_No_Handlers_Have_Been_Registered()
{
_messageBus = new SimpleMessageBus(null);
}