git:20260529.7c05904 to git:20261004.4b0ddb9

---

name: e2e-testing

description: "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."

metadata:

category: testing

priority: high

difficulty: intermediate

estimatedTime: "30"

source: frontendchecklist.io

---

# Implement end-to-end testing

E2E tests catch integration issues that unit tests miss—verifying your application works correctly from the user's perspective across all components.

## Quick Reference

- Test critical user journeys: authentication, checkout, core business flows

- Use data-testid attributes for stable, maintainable selectors

- Implement Page Object Model for reusable test components

- Run E2E tests in CI/CD with artifact uploads on failure

## Check

Review this project for E2E test coverage of critical user journeys like authentication, checkout, and form submissions.

## Fix

Add E2E tests for critical user journeys using Playwright or Cypress.

## Explain

Explain E2E testing best practices including test organization, selectors, and CI/CD integration.

## Code Review

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.

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For full implementation details, code examples, and framework-specific guidance,

see `references/rule.md`.