Playwright provides reliable end-to-end testing. Here's how to write effective E2E tests.
Setup and Configuration
Basic Tests
Page Object Model
Fixtures and Setup
API Mocking
Visual Testing
Accessibility Testing
CI Integration
Best Practices
Selectors:
✓ Prefer user-visible locators
✓ Use getByRole, getByLabel, getByText
✓ Add data-testid for complex cases
✓ Avoid CSS selectors
Tests:
✓ Keep tests independent
✓ Use page objects for reusability
✓ Mock external dependencies
✓ Test critical user journeys
Performance:
✓ Run tests in parallel
✓ Use test.describe.parallel
✓ Share authentication state
✓ Minimize browser contexts
Conclusion
Playwright provides reliable E2E testing with excellent developer experience. Use page objects for maintainability, fixtures for setup/teardown, and API mocking for isolation. Integrate visual and accessibility testing for comprehensive coverage, and run tests in CI for confidence in deployments.