Question

Is it possible to test that a property setter has not been called using Rhino Mocks 3.5?

Answer 1

This is entirely possible:

public class OneProperty
{
    virtual public int MyInt
    {
        get;
        set;
    }
}

[Test]
public void IntWasSet()
{
    var prop = Rhino.Mocks.MockRepository.GenerateMock<OneProperty>();

    prop.MyInt = 5;

    prop.AssertWasNotCalled(x => x.MyInt = Arg<int>.Is.Anything);

    prop.VerifyAllExpectations();
}

Running this test on Rhino Mocks 3.5 results in the following error:

Errors and Failures: 1) Test Error :
InterfacerTests.TestMatchesInterface.IntWasSet
Rhino.Mocks.Exceptions.ExpectationViolationException
: Expected that
OneProperty.set_MyInt(anything); would
not be called, but it was found on the
actual calls made on the mocked
object.

I discovered the Arg<T> syntax from this part of the Rhino documentation.