Going Further sections #58

In the "Going Further" sections - are there suggested answers for how to modify the code?

E.g., Chapter 2 when it asks for modifying the program to match case. The book suggests copying an existing test and adding it, but making sure previous tests pass.

I seem to not understand how this is possible, as existing tests hard code the lowercase article. So, the suggestion of simply copying an existing test is not quite correct, yes? I would have to also modify existing tests to work with dynamic article capitalization?

Thank you,
Conrad