public void add_a_second_handler_for_a_concrete_class_appends_to_the_chain()
{
theGraph.Add(concreteCall);
theGraph.Add(concreteCall2);
theGraph.Add(concreteCall3);
theGraph.ShouldHaveCount(1);
var calls = theGraph.ChainFor(typeof(Input)).OfType <HandlerCall>().ToArray();
calls.ShouldHaveCount(3);
var firstCall = calls.ElementAt(0).ShouldBeOfType <HandlerCall>();
firstCall.Equals(concreteCall).ShouldBeTrue();
calls.ElementAt(0).ShouldNotBeTheSameAs(concreteCall);
calls.ElementAt(1).Equals(concreteCall2).ShouldBeTrue();
calls.ElementAt(1).ShouldNotBeTheSameAs(concreteCall2);
}
