TL;DR: Snapshot tests are a trap. I know because I walked straight into it. 📖 Reading time: ~28 min What's in this article The Problem: Your React Tests Are Either Slow, Brittle, or Both My Current Testing Stack at a Glance 1. Vitest — What I Switched to From Jest and Haven't Looked Back 2. Jest — Still the Default for a Reason, Even If I'm Moving Away 3. React Testing Library — Not a Framework, But You're Already Using It Wrong 4. Playwright — My Go-To for E2E Since I Stopped Trusting Cypress in CI 5. Cypress — Still Worth It for Teams New to E2E Testing Side-by-Side: Which Framework for Which Situation The Problem: Your React Tests Are Either Slow, Brittle, or Both Snapshot tests are a trap. I know because I walked straight into it. You write a toMatchSnapshot() call, feel productive, commit it, and three weeks later you're approving a 400-line snapshot diff because someone changed a button's aria-label . The test isn't telling you anything broke — it's just screaming about change.…