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🧪 Testing Strategies

Comprehensive testing documentation covering unit tests, integration tests, end-to-end testing, and continuous integration.

🎯 Testing Philosophy​

Test Pyramid​

  1. Unit Tests (70%) - Fast, isolated, comprehensive
  2. Integration Tests (20%) - Component interactions
  3. E2E Tests (10%) - Critical user journeys

Quality Standards​

  • Coverage: Minimum 80% code coverage
  • Performance: Tests complete in under 5 minutes
  • Reliability: Tests are deterministic and stable
  • Maintainability: Clear, readable test code

🔬 Unit Testing​

Unit Testing - Component and function testing:

  • Jest configuration and setup
  • React Testing Library best practices
  • Component testing strategies
  • Mock implementations
  • Test coverage requirements
  • Snapshot testing guidelines

🌐 E2E Testing​

End-to-End Testing - Full application testing:

  • Playwright configuration and setup
  • User journey testing
  • Cross-browser compatibility
  • Visual regression testing
  • Performance testing
  • Mobile testing strategies

🔄 CI/CD​

Continuous Integration - Automated testing pipeline:

  • GitHub Actions configuration
  • Test automation workflows
  • Quality gates and requirements
  • Deployment testing
  • Performance monitoring
  • Security scanning

🛠️ Testing Tools​

Unit Testing Stack​

  • Jest - Test runner and assertion library
  • React Testing Library - Component testing utilities
  • MSW - API mocking for integration tests
  • @testing-library/jest-dom - Custom Jest matchers

E2E Testing Stack​

  • Playwright - Cross-browser automation
  • Percy - Visual regression testing
  • Lighthouse CI - Performance testing
  • Axe - Accessibility testing

📊 Test Reports​

Coverage Reports​

  • Line coverage: 85%+
  • Branch coverage: 80%+
  • Function coverage: 90%+
  • Statement coverage: 85%+

Performance Metrics​

  • Unit test execution: < 30 seconds
  • E2E test execution: < 5 minutes
  • CI pipeline completion: < 10 minutes

🚀 Getting Started​

  1. Set up unit tests - Configure Jest and RTL
  2. Configure E2E tests - Set up Playwright
  3. Enable CI/CD - Automate testing pipeline

📋 Testing Checklist​

Before Committing​

  • All unit tests pass
  • Code coverage meets requirements
  • No linting errors
  • Component tests include accessibility checks

Before Deploying​

  • All E2E tests pass
  • Performance tests meet benchmarks
  • Security scans complete
  • Visual regression tests pass

🔗 Related Sections​

  • Components - Component testing examples
  • Tools - Development environment setup
  • Documentation - API testing documentation

Testing documentation is continuously updated. Last updated: January 28, 2025