I would change the implementation so that the Presenter gets an IProfileRepository in the constructor. During unit testing, just feed it your mock. In production, use an IoC container to inject it.
--- Patrick Steele http://weblogs.asp.net/psteele On Fri, Feb 12, 2010 at 8:55 AM, Stan B <[email protected]> wrote: > Oh, I see, thank you. I need Activator.Create instance in order to > swap real repository (class that talks to SharePoint) to the mock > during unit testing. I am testing presenter class that doesn't see the > difference because it is where Activator.CreateInstance for the given > interface is called and real or mock type is being instantiated. > > I can accomplish this by creating manual (static) class mock but don't > want to go to this route.. > > > > On Feb 12, 8:21 am, Patrick Steele <[email protected]> wrote: >> On Fri, Feb 12, 2010 at 7:52 AM, Stan B <[email protected]> wrote: >> > Here is the problem in a nutshell, only two lines of code: >> >> > IProfileRepository mock = mocks.StrictMock<IProfileRepository>(); >> >> > Activator.CreateInstance(mock.GetType()); // this fails with "No >> > parameterless constructor defined for this >> > object" >> >> > Why doesn't mock have default constructor? >> >> Because you're not supposed to "create" direct instances of mocks. >> Rhino Mocks creates the mock object for you and handles all of >> internal plumbing to keep track of expectations and stubbing. >> >> Your first line of code (IProfileRepository mock = >> mocks.StrictMock<IProfileRepository>()) tells Rhino Mocks to generate >> (dynamically) an object that implements the IProfileRepository >> interface. So what you're given back ("mock") is an object that was >> dynamically created from Rhino Mocks, but it implements your interface >> and can therefore be used in place of your real ProfileRepository. >> >> What are you trying to accomplish with the Activator.CreateInstance? >> >> --- >> Patrick Steelehttp://weblogs.asp.net/psteele > > -- > You received this message because you are subscribed to the Google Groups > "Rhino.Mocks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rhinomocks?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Rhino.Mocks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rhinomocks?hl=en.
