[pixelrevision]

At work we use snapshot tests to see visual changes to ui. It helps a lot with code review especially with adding edge case data to tight designs.

We use ui tests specifically for testing accessibility, analytics and data passed along during navigation.

We use fixtures for all of this.

None of these tests really help with bugs. What they do help with is:

- Making sure the ui stays really decoupled from the business logic. This helps a lot with getting the data unit tested which does help a lot with bugs.

- Making sure that analytics and accessibility are not forgotten about. This helps a ton when refactoring.

- Making the intent of the code really clear during review.

It takes a bit of practice and being ruthless about removing/fixing stuff that’s not helping. I have found it makes it much easier for new developers to work, review code and understand how the code is organized. YMMV.