public void GivenIHaveRegisteredForAMessageType_WhenIClearAllRegistrations_ThenNoMoreMessagesAreReceived()
{
// Arrange
var messageBroker = new MessageBroker();
bool messageReceived = false;
messageBroker.Register(this, new Action <TestMessage>(message => messageReceived = true));
messageBroker.Clear();
// Act
messageBroker.Send(new TestMessage());
// Assert
Assert.That(messageReceived, Is.False);
}