Skip to content

TESTING.md

Latest commit

 

History

History
222 lines (175 loc) · 6.13 KB

TESTING.md

File metadata and controls

222 lines (175 loc) · 6.13 KB

Testing Documentation

Overview

This document provides comprehensive information about the testing setup and practices implemented for the NEPA project.

Test Structure

tests/
├── unit/                    # Unit tests
│   ├── controllers/         # Controller tests
│   ├── services/           # Service tests
│   ├── hooks/              # React hook tests
│   └── helpers/            # Test helpers and utilities
├── integration/            # Integration tests
│   ├── auth.test.ts        # Authentication API tests
│   ├── payment.test.ts     # Payment API tests
│   └── analytics.test.ts  # Analytics API tests
├── e2e/                   # End-to-end tests
│   ├── auth.spec.ts        # Authentication flows
│   ├── payment.spec.ts     # Payment flows
│   ├── dashboard.spec.ts   # Dashboard functionality
│   └── accessibility.spec.ts # Accessibility & performance
├── helpers.ts             # Shared test utilities
├── mocks.ts               # Mock objects and factories
├── setup.ts               # Test environment setup
├── globalSetup.ts         # Global test setup
└── globalTeardown.ts      # Global test teardown

Testing Frameworks

Jest (Unit & Integration Tests)

  • Framework: Jest with TypeScript support
  • Coverage: Configured for >80% coverage requirement
  • Mocking: Built-in Jest mocking capabilities
  • Test Environment: Node.js for backend tests

Playwright (E2E Tests)

  • Framework: Playwright for cross-browser E2E testing
  • Browsers: Chromium, Firefox, WebKit, Mobile Chrome, Mobile Safari
  • Features: Automatic waiting, network interception, accessibility testing

Test Categories

Unit Tests

  • Purpose: Test individual functions and classes in isolation
  • Coverage: Services, controllers, utilities, hooks
  • Mocking: External dependencies are mocked
  • Speed: Fast execution, suitable for TDD

Integration Tests

  • Purpose: Test API endpoints with real database interactions
  • Coverage: HTTP routes, middleware, database operations
  • Environment: Test database with isolated transactions
  • Authentication: Real JWT tokens and API keys

End-to-End Tests

  • Purpose: Test complete user workflows
  • Coverage: Critical user journeys, cross-browser compatibility
  • Environment: Full application stack
  • Features: Accessibility, performance, responsive design

Running Tests

All Tests

npm test

Unit Tests Only

npm run test:unit

Integration Tests Only

npm run test:integration

E2E Tests Only

npm run test:e2e

With Coverage

npm run test:coverage

Watch Mode

npm run test:watch

Test Database Setup

Environment Variables

  • Test Database: PostgreSQL test instance
  • Redis: Separate Redis database for testing
  • Environment: NODE_ENV=test

Database Management

  • Isolation: Each test runs in a transaction
  • Cleanup: Automatic cleanup after each test
  • Seeding: Test helpers for creating test data

Mocking Strategy

Services

  • Prisma: Mocked for unit tests
  • External APIs: Mocked with Jest
  • File System: Mocked for file operations

Test Data

  • Factories: Helper functions for creating test entities
  • Fixtures: Pre-defined test scenarios
  • Randomization: Dynamic test data generation

Coverage Requirements

Minimum Coverage

  • Overall: 80%
  • Functions: 80%
  • Branches: 80%
  • Lines: 80%
  • Statements: 80%

Coverage Reports

  • Format: LCOV, HTML, Text
  • Integration: Codecov for CI/CD
  • Threshold: Enforced in CI pipeline

CI/CD Integration

GitHub Actions

  • Triggers: Push to main/develop, Pull Requests
  • Matrix: Multiple Node.js versions
  • Services: PostgreSQL, Redis
  • Parallel: Unit, integration, and security tests

Test Stages

  1. Linting: Code quality checks
  2. Type Checking: TypeScript compilation
  3. Unit Tests: Fast feedback
  4. Integration Tests: API validation
  5. Security Audit: Dependency scanning
  6. E2E Tests: Full workflow validation
  7. Coverage: Quality gates

Best Practices

Test Organization

  • Descriptive Names: Clear test descriptions
  • Arrange-Act-Assert: Structured test patterns
  • Single Responsibility: One assertion per test
  • Test Isolation: Independent test execution

Mock Management

  • Reset: Clean mocks between tests
  • Realistic: Mock behavior mirrors real implementations
  • Verification: Ensure mocks are called correctly

Error Handling

  • Edge Cases: Test failure scenarios
  • Validation: Input validation testing
  • Recovery: Error recovery mechanisms

Performance Testing

Load Testing

  • Concurrent Users: Multiple simultaneous requests
  • Response Times: Performance thresholds
  • Resource Usage: Memory and CPU monitoring

Accessibility Testing

  • WCAG Compliance: Accessibility standards
  • Keyboard Navigation: Full keyboard support
  • Screen Readers: Assistive technology compatibility

Debugging Tests

Unit Tests

npm run test:unit -- --testNamePattern="specific test"

Integration Tests

npm run test:integration -- --detectOpenHandles

E2E Tests

npm run test:e2e -- --debug

Troubleshooting

Common Issues

  • Database Connection: Ensure test database is running
  • Port Conflicts: Use different ports for parallel tests
  • Timeouts: Increase timeout for slow operations
  • Memory Leaks: Monitor memory usage in long-running tests

Debug Mode

  • Verbose Output: Use --verbose flag
  • Breakpoints: Use debugger statements
  • Screenshots: E2E tests capture screenshots on failure

Maintenance

Regular Updates

  • Dependencies: Keep testing frameworks updated
  • Test Data: Refresh test scenarios regularly
  • Coverage: Monitor coverage trends

Review Process

  • Code Review: All tests reviewed before merge
  • Flaky Tests: Identify and fix unreliable tests
  • Performance: Monitor test execution times