[TestBox 2.5.0] Possible to add a mocked method to my live object?

[Stewart McGuire]

I have a class foo1 that I am unit testing.  It has a function A that calls function B.  Function B returns an instance of class foo2.  In order to make this a true unit test, I created a mocked version of class foo2 called mockFoo2.  I need to mock function B in foo1 to return mockFoo2 instead of a live version of foo2.

I am still fairly new to TestBox and MockBox, so I am not sure if this is possible.  I tried using createStub on foo1 to create stubFoo1 and then the $() function to create a mocked version of function B but it didn't seem to work as the call to function A in the stub object didn't seem to do anything.

Also, I am a little confused as to the difference between createMock and createStub.  I have read the TestBox/MockBox manual and am still unsure if I am doing this right.

Any help or suggestions would be appreciated.