Frontend E2E User Journeys

Overview

End-to-end (E2E) tests verify complete user workflows from start to finish, including multiple pages, API requests, and database state.

When to use this skill:

• Implementing critical user workflows (login, checkout, signup)
• Testing cross-page journeys (onboarding wizard)
• Verifying third-party integrations (OAuth, payments)
• Testing business-critical flows (cancel subscription, refund)

When NOT to use:

• Component-level behavior → Use component tests
• Edge cases → Use unit tests
• Variations of same flow → Use parameterized tests
• Rapid iteration → E2E tests too slow

The Iron Law