How to set the Expect call to check that a method is not called in Rhino Mocks

Question

Using Rhino Mocks, how do I ensure that a method is not called while setting up the Expectations on the mock object.

In my example, I am testing the Commit method and I need to ensure that the Rollback method is not called while doing the commit. (this is because i have logic in the commit method that will automatically rollback if commit fails)

Here's how the code looks like..

[Test]
public void TestCommit_DoesNotRollback() 
{
    //Arrange
    var mockStore = MockRepository.GenerateMock<IStore>();
    mockStore.Expect(x => x.Commit());
    //here i want to set an expectation that x.Rollback() should not be called.

    //Act
    subject.Commit();

    //Assert
    mockStore.VerifyAllExpectation();
}

Of course, I can do this at Assert phase like this:

mockStore.AssertWasNotCalled(x => x.Rollback());

But i would like to set this as an Expectation in the first place.

Curious why you want to use Expectation, and not just go for AssertWasNotCalled? — Cousken, Feb 27 '14 at 10:37
@Cousken AssertWasNotCalled() does not seem to work with BackToRecord() and Replay(), maybe that's the reason?? — danio, Mar 07 '17 at 15:15

score 36 · Answer 1 · answered Jul 29 '11 at 22:38

36

Another option would be:

mockStore.Expect(x => x.Rollback()).Repeat.Never();

answered Jul 29 '11 at 22:38

Pedro

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score 8 · Answer 2 · answered Jul 29 '11 at 19:10

8

Is this what are you looking for?

ITest test = MockRepository.GenerateMock<ITest>();
test.Expect(x => x.TestMethod()).AssertWasNotCalled(mi => {});

answered Jul 29 '11 at 19:10

sll

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score 3 · Answer 3 · answered Aug 01 '11 at 08:37

3

Here is another option:

        mockStore.Stub(x => x.DoThis()).Repeat.Times(0);

        //EXECUTION HERE 

        x.VerifyAllExpectations();

answered Aug 01 '11 at 08:37

Morten

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score 2 · Answer 4 · answered Apr 10 '15 at 20:16

For this case I created an extension method to better show my intent

public static IMethodOptions<RhinoMocksExtensions.VoidType> ExpectNever<T>(this T mock, Action<T> action) where T : class
{
    return mock.Expect(action).IgnoreArguments().Repeat.Never();
}

Note the IgnoreArguments() call. I'm assuming that you don't want the method to be called ever...no matter what the parameter value(s) are.

How to set the Expect call to check that a method is not called in Rhino Mocks

4 Answers4