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Testing an inheriting C # class

I have the following code in c♯ but cannot figure out how to test it; I need to test aMethodUnderTest. I cannot change ABaseClass like in the library. But if I have to test AClass, I need to be able to establish what TheThing returns. Anyone have any ideas or experience with testing this type of code?

public ABaseClass
{
  protected ThingBaseClass theThing {get;}
  public virtual ....
  ...
}


public AClassUnderTest : ABaseClass
{
  public MyThing Thing
  {
    get
    {
      return (MyThing)base.theThing;
    }
  }

  public void aMethedUnderTest()
  {
    Thing.doSomething();
  }
}

Note. The initial value for the Thing parameter is null. TheThing doesn't have a public setter.

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3 answers


I think you can create a mock that inherits ABaseClass and then check if AClass.Thing returns the same result as ABaseClassMock.theThing



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You can use mocking libraries like Moles. This way you can set the value to "thing" from your test code. http://research.microsoft.com/en-us/projects/moles/



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You can create a layout ABaseClass

and still install theThing

with MOQ

(even if it doesn't have a setter)

var mock = new Mock<ABaseClass>();
mock.SetupGet(x => x.theThing).Returns(\*Whatever you need*\);
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