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Get Started Free →Use when reviewing CI coverage, automated checks, or test strategy related to Implement end-to-end testing. Focus on whether the rule is continuously verified, not just documented.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-13 | ✗→✓ | ▲ Improved | -8% | 0% |
| case-19 | ✗→✓ | ▲ Improved | -1% | 0% |
| case-01 | ✓→✓ | ＝ Same ✓ | -19% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | 16% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | -19% | 0% |
E2E tests catch integration issues that unit tests miss—verifying your application works correctly from the user's perspective across all components.
Review this project for E2E test coverage of critical user journeys like authentication, checkout, and form submissions.
Add E2E tests for critical user journeys using Playwright or Cypress.
Explain E2E testing best practices including test organization, selectors, and CI/CD integration.
Review tests, CI workflows, and enforcement points related to Implement end-to-end testing. Flag exact gaps where the rule is not automatically verified or where failures do not block regressions.
For full implementation details, code examples, and framework-specific guidance, see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/testing/e2e-testing
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