$22k is pretty nice. Through I have no idea what "the prettier JavaScript tests" even means.
Is there a unit-test bootstap project someone could download that verifies this requirement? I'm already too confused deciphering what the contest even is
What tests? There is no hyperlink, for all I know, these are just some hidden tests that the owners of the competition run on the solutions to verify them. There is no link to Prettier at all, and at a first read it's very unclear this is what they want you to do if you aren't already familiar with the tool they want you to recreate.
Ok, I don't know what is more worrying, that a developer fails to find prettier on GitHub, or that a developer fails to Google it.
But I guess that if you fail this, you were probably not the target audience for the challenge.
Nobody reading about the contest in the linked page should have to rely on Google to fully understand the parameters of the contest. Whoever authored this page is lazy.