Question

Suppose I have the following class:

public class TestBase {   public bool runMethod1 { get; set; }    public void BaseMethod()    {     if (runMethod1)       ChildMethod1();     else        ChildMethod2();   }    protected abstract void ChildMethod1();   protected abstract void ChildMethod2(); } 

I also have the class

public class ChildTest : TestBase {   protected override void ChildMethod1()   {     //do something   }     protected override void ChildMethod2()   {     //do something completely different   }  } 

I’m using Moq, and I’d like to write a test that verifies ChildMethod1() is being called when I call BaseMethod() and runMethod1 is true. Is it possible to create an implemention of TestBase with Moq, call BaseMethod() and verify that ChildMethod was called on the Moq implementation?

[Test] public BaseMethod_should_call_correct_child_method() {   TestBase testBase;    //todo: get a mock of TestBase into testBase variable    testBase.runMethod1 = true;    testBase.BaseMethod();    //todo: verify that ChildMethod1() was called  } 

Answer 1

You can also set the expectation/setup as Verifiable and do without a strict mock:

  //expect that ChildMethod1() will be called once. (it's protected)   testBaseMock.Protected().Expect('ChildMethod1')     .AtMostOnce()     .Verifiable();    ...    //make sure the method was called   testBase.Verify(); 

Edit This syntax does not work in current versions of Moq. See this question for how to do it as of at least 4.0.10827