CODEWITHSUNDEEP
c#unit-testingmockingrhino-mocksrhino
maestro
maestro

Reputation: 671

How to mock a not implemented method with Rhino Mock?

I have this simplified implementation and the unit test below:

public class Parent
{
    public virtual int GetSomeValue()
    {
        throw new NotImplementedException();
    }
}

public class Child
{
    public Parent MyParent { get; set; }

    public virtual Parent GetParent()
    {
        return MyParent;
    }

    public virtual int GetParentsValue()
    {
        var parent = GetParent();

        return parent.GetSomeValue();
    }
}

How can I test the GetParentsValue() method with Rhino Mock without implement the parent's GetSomeValue() method?

Thanks!

Upvotes: 0

Views: 605

Answers (2)

Davin Tryon
Davin Tryon

Reputation: 67296

You can do this:

Child target = new Child();

Parent mockParent = MockRepository.GenerateStub<Parent>();
mockParent.Stub(x => x.GetSomeValue()).Return(1);

target.MyParent = mockParent;

int value = target.GetParentsValue();

Assert.AreEqual(value, 1);

Upvotes: 2

Wouter de Kort
Wouter de Kort

Reputation: 39898

You can use this code:

Child child = MockRepository.GenerateStrictMock<Child>();
child.Stub(c => c.GetParentsValue()).Return(1);

Assert.AreEqual(1, child.GetParentsValue());

If you want to test some internals of the GetParentsValue() method you should mock Parent.GetSomeValue() with:

Parent mockParent = MockRepository.GenerateStub<Parent>();
mockParent.Stub(x => x.GetSomeValue()).Return(1);

target.MyParent = mockParent;

Upvotes: 1

Related Questions