The correctness lens for a frontend build, organized around one question that decides whether your test suite is a safety net or a straitjacket: does this test go red when BEHAVIOR changes (a net — it warns on real regressions) or when the IMPLEMENTATION changes (a shackle — it reddens on every refa
The correctness lens for a frontend build, organized around one question that decides whether your test suite is a safety net or a straitjacket: does this test go red when BEHAVIOR changes (a net — it warns on real regressions) or when the IMPLEMENTATION changes (a shackle — it reddens on every refactor, so you fix tests instead of code, and learn to ignore red). Use after seaworthy's slices exist