End-to-end tests validate complete user workflows through the actual UI. Playwright and Cypress dominate modern E2E testing with auto-waiting, network interception, and visual snapshots. Key practices: test critical paths only, use page objects, manage test data, handle flakiness, and run in CI with parallelization.
The 5-Mode Loop
5 of 5 modes available
Read · See · Animate · Test · Build
Before this, understand: unit testing