Agile Web Development with Rails 8: Part II - Iteration D3: Adding a Button, code path is incorrect

The last code sample says it’s

rails80/depot_g/test/controllers/line_items_controller_test.rb

I believe this must be depot_f not depot_g.

I was trying to reset my code around this section because I messed up something. I restarted with the depot_g but I got lost because there were many things I couldn’t remember I saw before.

I realized that the depot_g seems to be for the next iteration. Am I correct?