I had never used CodePen before, so I was using the tests as an indicator that I was understanding the functionality of the editor correctly. I was shocked when it passed all unit tests even though I had only a shell of an app without the random quote feature implemented at all.
I don’t plan to submit it in this state, but it doesn’t seem like it should be passing all tests.
I made my pen into a template and created a copy here: Random Quote Machine Template for Debugging.