Do you feel the snapshot tests are useful? I've mostly had bad experiences with them (mostly noise), so interested in hearing what makes them work for you/others.

I (weirdly) got sold on snapshot tests while developing a tree-sitter grammar. They don’t make it super obvious (and most snapshotting test solutions don’t) that you can “update all”, but the workflow makes more sense to me now that I’ve even generated my test cases from a more intentional suite. The goal is for it to be noise! It’s entirely a regression test, and it should alert you if you changed something without knowing you did. But it’s only valuable if you snapshot test the things you expect to be stable, write specific tests for the changes you intend to make, and compare between them.

I only have a handful of Jest unit tests, but they each take nearly 30 seconds nowadays and I don't really know why. Maybe because everything is wrapped in a Formik top level tag? Maybe it somehow pulls in and executes all my code multiple times over? There's probably something silly going on there.

Anyway as just the one developer on this project, I don't see the value in writing unit tests for every one of my components. They just work, I'll leave them alone for a few years until someone else builds a new UI.

That’s awesome news. Started looking it integrating jest today but we use vite, so this is a very timely post!