Testing Infrastructure: - Configure Jest with Next.js integration and TypeScript support - Add React Testing Library with proper setup for Next.js components - Install and configure Playwright for E2E testing - Create jest.setup.ts with mocks for Next.js router and browser APIs - Add CSS module mocking with identity-obj-proxy Unit Tests: - Create LoadingFallback component tests covering all 5 variants - Create tracking API tests for data transformation logic - Test createActivity, getActivities data structure conversions - Verify frontend (timestamp/data) to backend (startedAt/metadata) mapping E2E Tests (Playwright): - Create comprehensive tracking flow tests - Test navigation to all tracker pages (feeding, sleep, diaper) - Test homepage Today's Summary display - Test AI Assistant and Analytics navigation - Test feeding, sleep, and diaper tracker UI elements - Configure multi-browser testing (Chrome, Firefox, Safari, Mobile) CI/CD Pipeline (GitHub Actions): - Create automated CI/CD workflow for master/main branches - Run linting on every push and PR - Execute unit tests with coverage reporting - Run E2E tests (Chromium) in CI environment - Build application and upload artifacts - Upload test coverage to Codecov - Upload Playwright test reports as artifacts Test Scripts: - npm test: Run Jest unit tests - npm run test⌚ Run tests in watch mode - npm run test:coverage: Generate coverage report - npm run test:e2e: Run Playwright E2E tests - npm run test:e2e:ui: Run E2E tests with UI mode - npm run test:e2e:headed: Run E2E tests in headed mode Documentation: - Create comprehensive testing guide (tests/README.md) - Document test structure and best practices - Add troubleshooting section for common issues - Include useful commands for debugging tests Coverage Thresholds: - Branches: 70% - Functions: 70% - Lines: 70% - Statements: 70% 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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