How do I test a virtual property on an abstract class with Rhino Mocks and MSpec?

Question

I have a virtual property, FirstName, on an abstract class, Foo. I need to test the virtual property's behavior. The method never fires when this test executes (and so the test always fails, no matter what's in the method's body). How can I make this method my system under test? How can I test this method?

[Subject(typeof(Foo))]
public class When_whatever 
{
    Establish context = () => 
    {
        _fooSut = _mockRepository.PartialMock<Foo>(argumentOne, argumentTwo);
    };

    Because of = () => _result = _fooSut.FirstName;

    It should_return_not_null = () => _result.ShouldNotBeNull();

    private static string _result;
    private static Foo _fooSut;
}

I'm using Rhino Mocks 3.5 and mspec.

Answer 1

Are you tried PartialMock feature? See here