Only for limited areas of a server codebase on a small team who understood what tests were meant to accomplish and wrote excellent tests. Basically, about a yea

Only for limited areas of a server codebase on a small team who understood what tests were meant to accomplish and wrote excellent tests. Basically, about a year and a half out of a twenty five year career. I’ve never seen them useful on front end code except in extremely limited circumstances. In most other cases, we had tests that only covered the happy path and did little more than slow down builds and make refactoring more difficult. In other words, they made things worse. E2E tests, in particular, are the Afghanistan of web development. I’ve seen more time wasted getting useless tests green than I’ve seen wasted on any other programming exercise.