I'd say the Test.expect. Seeing the '\n' appear should provide enough of a clue given system constraints. I'll go ahead and switch my vote. Thanks for your awesome work!

I'm seeing the newline now, that's great! However, I'm not seeing the erroneous answer any longer. If you could add that back in, I'd be willing to mark you as good to go out the door.

Great work on this.

I agree the kata is good to go as it stands. However, I think the author should review the solutions to ensure that the solutions most of us are coming up with, just to make sure they're within the author's intent.

You deserve a cookie for doing it this way.

I can see the argument for 6, given that the exercise can challenge the student to explore between if, if-else, and case statements. As I see it, it's riding the fine line between 7 and 6 though.

I think this is really close to being ready. I would suggest adding some slightly more descriptive test failure statements for the non-'' cases. Also, I'm thinking an edge case for searchString being longer than fullText might be something to consider.