public void the_basic_method_subscription_is_contravariant()
        {
            var sub = new MethodInvocation <MessageA>(msg => { });

            sub.Handles(typeof(MessageASpecialization)).ShouldBeTrue();
        }
 public void the_basic_method_subscription_is_contravariant()
 {
     var sub = new MethodInvocation<MessageA>(msg => { });
     sub.Handles(typeof(MessageASpecialization)).ShouldBeTrue();
 }