Rhino Mocks: Re-assign a new result for a method on a stub

Question

I know I can do this: IDateTimeFactory dtf = MockRepository.GenerateStub(); dtf.Now = new DateTime(); DoStuff(dtf); // dtf.Now can be called arbitrary number of times, will always return the same value dtf.Now = new DateTime()+new TimeSpan(0,1,0); // 1 minute later DoStuff(dtf); //ditto from above What if instead of IDateTimeFactory.Now being a property it is a method IDateTimeFactory.GetNow(), how do I do the same thing? As per Judah's suggestion below I have rewritten my SetDateTime helper method as follows: private void SetDateTime(DateTime dt) { Expect.Call(_now_factory.GetNow()).Repeat.Any(); LastCall.Do((Func)delegate() { return dt; }); } but it still throws "The result for ICurrentDateTimeFactory.GetNow(); has already been setup." errors. Plus its still not going to work with a stub.... JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I know this is an old question, but thought I'd post an update for more recent Rhino Mocks versions. Based on the previous answers which use Do(), there is a slightly cleaner (IMO) way available if you are using AAA in Rhino Mocks (available from version 3.5+). [Test] public void TestDoStuff() { var now = DateTime.Now; var dtf = MockRepository.GenerateStub(); dtf .Stub(x => x.GetNow()) .Return(default(DateTime)) //need to set a dummy return value .WhenCalled(x => x.ReturnValue = now); //close over the now variable DoStuff(dtf); // dtf.Now can be called arbitrary number of times, will always return the same value now = now + new TimeSpan(0, 1, 0); // 1 minute later DoStuff(dtf); //ditto from above } private void DoStuff(IDateTimeFactory dtf) { Console.WriteLine(dtf.GetNow()); }