Question

I m trying to mock the Add method of subsonic SimpleRepository with Rihino mocks, I m using the IRepository Interface but I m new to mocking and dont know how to go from there, can this be done? thanks for your help.

Answer 1

It depends what you want to test. Do you care if the Add() method is called or not, or do you just want to set up a canned response which may or may not be called?

If you expect the call:-

var mocks = new MockRepository();
var repo = mocks.StrictMock<IRepository>():

var myObj = CreateSampleObject(); 

using(mocks.Record())
{
    Expect.Call(repo.Add(myObj)).Return(myObj);
}

using(mocks.Playback())
{
    var target = CreateTarget(repo);
    target.DoSomething(myObj);
}

If you don t care whether it is called or not, then use SetUpResult instead of Expect, e.g.

SetUpResult.For(rep.Add(myObj)).Return(myObj);

Answer 2

AdamRalph is correct, but I prefer the AAA syntax of Rhino Mocks:

// arrange
var repo = MockRepository.GenerateStub<IRepository>();
var myObject = CreateSampleObject();
repo.Stub(r => r.Add(myObj)).Return(myObj);

// act (this assumes that the call to "SomeMethod" on "SomeClass"
// returns the result of the IRepository.Add).
var someClass = new SomeClass(repo);
var result = someClass.SomeMethod();

// assert
Assert.AreSame(myObject, result);

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