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Rhino Mocks - Raise Event When Property Set
public interface IFoo
{
   int CurrentValue { get; set; }
   event EventHandler CurrentValueChanged;
}

IFoo mock = MockRepository.GenerateMock<IFoo>();
// variable for self-made property behavior
int currentValue;

// setting the value:
mock
  .Stub(x => CurrentValue = Arg<int>.Is.Anything)
  .WhenCalled(call =>
    {
      currentValue = (int)call.Arguments[0];
      myStub.Raise(/* ...*/);
    })

// getting value from the mock
mock
  .Stub(x => CurrentValue)
  // Return doesn't work, because you need to specify the value at runtime
  // it is still used to make Rhinos validation happy
  .Return(0)
  .WhenCalled(call => call.ReturnValue = currentValue);