Faking a base class event fails

   public class BaseClass {
      public event Action BaseClassEvent;
   }


   public class DerivedClass : BaseClass {
   }


   public class UsingClass {
      DerivedClass _derived;

      public UsingClass() {
         _derived = new DerivedClass();
         _derived.BaseClassEvent += BaseClassEvent;
      }

      void BaseClassEvent() {
      }
   }


   [TestFixture]
   public class UsingClassTest {
      [Test]
      public void TestUsingClass() {
         DerivedClass derivedClass = Isolate.Fake.Instance<DerivedClass>();
         Isolate.Swap.NextInstance<DerivedClass>().With(derivedClass);
         Action baseClassEvent = null;
         Isolate.WhenCalled(() => derivedClass.BaseClassEvent += null).DoInstead((call) => {
            baseClassEvent = (Action) call.Parameters[0];
         });
         UsingClass usingClass = new UsingClass();
         baseClassEvent();
      }
   }