I think AI code generation will really amplify the importance of unit tests. If you can enumerate all the corner cases using tests then tell the AI to write code that does XYZ and passes the given tests, that's very powerful.
True, and honestly, if it turns out I can write unit tests all day I'll actually be a happy camper, I love thinking through problems and trying to account for issues, but I can guess how we will be encouraged to generate the unit tests in this new paradigm.