public void Interchangable_For_System_Exception_class_Registered()
{
Person person = new Person();
Poison poison = new Poison();
IPoison poisonTarget = poison.As <IPoison>();
IPerson personTarget = person.As <IPerson>(
GooseTypePair.Create <Poison, IPoison>(),
GooseTypePair.Create <Exception, IException>());
var ex = Assert.Throws <WrappedException <IException> >(() => personTarget.Drink(poisonTarget));
Assert.NotNull(ex.Exception);
Assert.Equal(typeof(Exception), ex.Exception.GetSource <Exception>().GetType());
}