Reset call tracking

[Jerrie Pelser]

Hi,

I have a unit test where I assert that a certain action will call a method on a mock dependency object by using Mock.Assert().  I want to ensure that the action I take calls the method on the mock object exactly once.  The problem is that the setup of the unit test creates a scenario where the method of the mock object will also be called, so when I assert that the call to the mock object happened just once it fails because it has actually been called more than once.

Is there a way to "reset" the call tracking of methods on mock objects?  I basically want to tell JustMock that at a certain point, whatever calls have happened to my mock objects should be discarded and the call counter should basically start at 0 again.

Am I missing something in the framework or is there another way I should do this?

Jerrie

[Kaloyan]

Hi Jerrie,

Thank you for the detailed explanation.

I was able to reproduce the issue on my side.

Unfortunately, there is no such functionality in JustMock at this point. However, the idea sounds great, so I have added it to our Ideas and Feedback portal. To vote for its faster implementation check this link.

Nevertheless, I also managed to find a workaround for this. Let`s assume we have the following:

[TestClass]
public class JustMockTest1
{
    public MyClass myMock;

    [TestInitialize]
    public void TestInit()
    {
        myMock = Mock.Create<MyClass>(Behavior.CallOriginal);

        Mock.Arrange(() => myMock.DoSmt()).DoNothing();

        myMock.Foo();
    }

    [TestMethod]
    public void ShouldCheckForAllDoSmt()
    {
        myMock.Foo();

        Mock.Assert(() => myMock.DoSmt(), Occurs.Once());
    }
}

This will fail as the DoSmt() has actually been called two times (I believe you are experiencing similar issue).
However, to avoid this, I wrote the test like this:

[TestMethod]
public void ShouldCheckForTheArrangedDoSmt()
{
    Mock.Arrange(() => myMock.DoSmt()).DoNothing().OccursOnce();

    myMock.Foo();

    Mock.Assert(myMock);
}

This test passes. So, the workaround is to use occurrence expectations in the arrange.

I hope this helps.

Regards,
Kaloyan
Telerik

[Jerrie Pelser]

That works great!  

Thank you for the assistance.

[Kaloyan]

Hi Jerrie,

I am happy to see this did the job.

Please, contact us again if there is anything else.

Regards,
Kaloyan
Telerik