With Claude Code you can, it is aware of your code base. Or you can have it generate them and then manually check them. If there are existing tests you can tell

With Claude Code you can, it is aware of your code base. Or you can have it generate them and then manually check them. If there are existing tests you can tell it to use those. I usually have it work on the thing I want it to do, keep a journal MarkDown file capturing what it did and why in case I want to review something later and tell it to build and test its changes after each edit.