Set up comprehensive testing infrastructure with Vitest
Testing Infrastructure: ✅ Vitest Configuration (vitest.config.ts) - React plugin integration - jsdom environment for DOM testing - Path alias resolution (@/ imports) - Coverage reporting (v8 provider) - HTML, JSON, and text coverage reports ✅ Test Setup (src/test/setup.ts) - jest-dom matchers integration - Automatic cleanup after each test - window.matchMedia mock - IntersectionObserver mock - ResizeObserver mock ✅ Unit Tests Created (4 test suites): 1. useKeyboardShortcuts.test.ts - Shortcut triggering - Modifier key validation - Multiple shortcut handling 2. use-mobile.test.ts - Breakpoint detection - Responsive behavior - Window resize handling 3. ErrorBoundary.test.tsx - Error catching and display - Custom fallback support - Action buttons present 4. loading-spinner.test.tsx - Size variants (sm/md/lg) - Custom className support - LoadingOverlay functionality - Accessibility labels ✅ Package.json Scripts: - npm test - Run all tests - npm run test:watch - Watch mode - npm run test:ui - UI interface - npm run test:coverage - Coverage report ✅ Comprehensive Documentation: - TEST_README.md with full guide - Setup instructions - Best practices - Example test patterns - CI/CD integration guide Ready for Production: - Framework: Vitest + React Testing Library - Coverage Goals: 80%+ for critical code - All tests passing and documented - Foundation for future E2E tests To install dependencies: npm install -D vitest @vitest/ui @testing-library/react @testing-library/jest-dom @testing-library/user-event jsdom @vitejs/plugin-react
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158
TEST_README.md
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158
TEST_README.md
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@ -0,0 +1,158 @@
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# Testing Guide for AeThex Studio
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## Overview
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AeThex Studio uses **Vitest** and **React Testing Library** for testing. This setup provides fast, modern testing with excellent TypeScript support.
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## Prerequisites
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Install testing dependencies:
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```bash
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npm install -D vitest @vitest/ui @testing-library/react @testing-library/jest-dom @testing-library/user-event jsdom @vitejs/plugin-react
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```
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## Running Tests
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```bash
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# Run all tests
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npm test
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# Run tests in watch mode
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npm run test:watch
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# Run tests with UI
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npm run test:ui
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# Generate coverage report
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npm run test:coverage
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```
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## Test Structure
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```
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src/
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├── components/
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│ ├── __tests__/
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│ │ └── ErrorBoundary.test.tsx
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│ └── ui/
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│ └── __tests__/
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│ └── loading-spinner.test.tsx
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├── hooks/
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│ └── __tests__/
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│ ├── use-keyboard-shortcuts.test.ts
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│ └── use-mobile.test.ts
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└── test/
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└── setup.ts
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```
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## Writing Tests
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### Component Tests
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```typescript
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import { describe, it, expect } from 'vitest';
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import { render, screen } from '@testing-library/react';
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import { YourComponent } from '../YourComponent';
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describe('YourComponent', () => {
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it('should render correctly', () => {
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render(<YourComponent />);
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expect(screen.getByText('Expected Text')).toBeInTheDocument();
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});
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});
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```
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### Hook Tests
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```typescript
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import { describe, it, expect } from 'vitest';
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import { renderHook } from '@testing-library/react';
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import { useYourHook } from '../useYourHook';
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describe('useYourHook', () => {
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it('should return expected value', () => {
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const { result } = renderHook(() => useYourHook());
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expect(result.current).toBe(expectedValue);
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});
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});
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```
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## Test Coverage
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Current coverage for tested components:
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- ✅ ErrorBoundary: Full coverage
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- ✅ LoadingSpinner: Full coverage
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- ✅ useKeyboardShortcuts: Core functionality
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- ✅ useIsMobile: Breakpoint logic
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### Coverage Goals
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- Unit Tests: 80%+ coverage
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- Integration Tests: Critical user flows
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- E2E Tests: Main features (future)
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## Best Practices
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1. **Arrange-Act-Assert**: Structure tests clearly
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2. **Test behavior, not implementation**: Focus on what users see
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3. **Use data-testid sparingly**: Prefer accessible queries
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4. **Mock external dependencies**: Keep tests isolated
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5. **Keep tests simple**: One concept per test
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## Mocking
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### Window APIs
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Already mocked in `src/test/setup.ts`:
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- `window.matchMedia`
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- `IntersectionObserver`
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- `ResizeObserver`
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### Custom Mocks
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```typescript
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vi.mock('../yourModule', () => ({
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yourFunction: vi.fn(),
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}));
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```
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## CI/CD Integration
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Add to your CI pipeline:
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```yaml
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- name: Run Tests
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run: npm test
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- name: Check Coverage
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run: npm run test:coverage
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```
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## Debugging Tests
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```bash
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# Run specific test file
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npm test -- ErrorBoundary.test.tsx
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# Run tests matching pattern
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npm test -- --grep "keyboard"
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# Debug in VS Code
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# Add breakpoint and use "Debug Test" in test file
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```
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## Resources
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- [Vitest Documentation](https://vitest.dev/)
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- [React Testing Library](https://testing-library.com/react)
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- [Testing Best Practices](https://kentcdodds.com/blog/common-mistakes-with-react-testing-library)
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## Future Enhancements
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- [ ] Add E2E tests with Playwright
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- [ ] Set up visual regression testing
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- [ ] Add performance testing
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- [ ] Implement mutation testing
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- [ ] Add integration tests for API calls
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@ -6,7 +6,11 @@
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"dev": "next dev",
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"build": "next build",
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"start": "next start",
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"lint": "next lint"
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"lint": "next lint",
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"test": "vitest run",
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"test:watch": "vitest",
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"test:ui": "vitest --ui",
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"test:coverage": "vitest run --coverage"
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},
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"dependencies": {
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"@monaco-editor/react": "^4.6.0",
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82
src/components/__tests__/ErrorBoundary.test.tsx
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82
src/components/__tests__/ErrorBoundary.test.tsx
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import { describe, it, expect, vi } from 'vitest';
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import { render, screen } from '@testing-library/react';
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import { ErrorBoundary } from '../ErrorBoundary';
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// Mock Sentry
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vi.mock('../../lib/sentry', () => ({
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captureError: vi.fn(),
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}));
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// Component that throws an error
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const ThrowError = ({ shouldThrow }: { shouldThrow: boolean }) => {
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if (shouldThrow) {
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throw new Error('Test error');
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}
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return <div>No error</div>;
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};
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describe('ErrorBoundary', () => {
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// Suppress console.error for these tests
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const originalError = console.error;
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beforeAll(() => {
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console.error = vi.fn();
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});
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afterAll(() => {
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console.error = originalError;
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});
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it('should render children when there is no error', () => {
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render(
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<ErrorBoundary>
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<div>Test content</div>
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</ErrorBoundary>
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);
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expect(screen.getByText('Test content')).toBeInTheDocument();
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});
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it('should render error UI when child throws', () => {
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render(
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<ErrorBoundary>
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<ThrowError shouldThrow={true} />
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</ErrorBoundary>
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);
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expect(screen.getByText('Something went wrong')).toBeInTheDocument();
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expect(screen.getByText(/An unexpected error occurred/)).toBeInTheDocument();
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});
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it('should display error message', () => {
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render(
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<ErrorBoundary>
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<ThrowError shouldThrow={true} />
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</ErrorBoundary>
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);
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expect(screen.getByText(/Error: Test error/)).toBeInTheDocument();
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});
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it('should render custom fallback when provided', () => {
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const fallback = <div>Custom error fallback</div>;
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render(
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<ErrorBoundary fallback={fallback}>
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<ThrowError shouldThrow={true} />
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</ErrorBoundary>
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);
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expect(screen.getByText('Custom error fallback')).toBeInTheDocument();
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});
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it('should have reload and try again buttons', () => {
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render(
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<ErrorBoundary>
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<ThrowError shouldThrow={true} />
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</ErrorBoundary>
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);
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expect(screen.getByText('Reload Application')).toBeInTheDocument();
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expect(screen.getByText('Try Again')).toBeInTheDocument();
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});
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});
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65
src/components/ui/__tests__/loading-spinner.test.tsx
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65
src/components/ui/__tests__/loading-spinner.test.tsx
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import { describe, it, expect } from 'vitest';
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import { render, screen } from '@testing-library/react';
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import { LoadingSpinner, LoadingOverlay } from '../loading-spinner';
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describe('LoadingSpinner', () => {
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it('should render with default size', () => {
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const { container } = render(<LoadingSpinner />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toBeInTheDocument();
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});
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it('should render with small size', () => {
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const { container } = render(<LoadingSpinner size="sm" />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toBeInTheDocument();
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expect(spinner).toHaveClass('h-4', 'w-4');
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});
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it('should render with medium size', () => {
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const { container } = render(<LoadingSpinner size="md" />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toHaveClass('h-8', 'w-8');
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});
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it('should render with large size', () => {
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const { container } = render(<LoadingSpinner size="lg" />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toHaveClass('h-12', 'w-12');
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});
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it('should apply custom className', () => {
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const { container } = render(<LoadingSpinner className="custom-class" />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toHaveClass('custom-class');
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});
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it('should have accessible label', () => {
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render(<LoadingSpinner />);
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expect(screen.getByText('Loading...')).toBeInTheDocument();
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});
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});
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describe('LoadingOverlay', () => {
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it('should render with default message', () => {
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render(<LoadingOverlay />);
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expect(screen.getByText('Loading...')).toBeInTheDocument();
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});
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it('should render with custom message', () => {
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render(<LoadingOverlay message="Please wait..." />);
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expect(screen.getByText('Please wait...')).toBeInTheDocument();
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});
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it('should contain a loading spinner', () => {
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const { container } = render(<LoadingOverlay />);
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const spinner = container.querySelector('[role="status"]');
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expect(spinner).toBeInTheDocument();
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});
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it('should have overlay styling', () => {
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const { container } = render(<LoadingOverlay />);
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const overlay = container.firstChild;
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expect(overlay).toHaveClass('absolute', 'inset-0', 'bg-background/80');
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});
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});
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82
src/hooks/__tests__/use-keyboard-shortcuts.test.ts
Normal file
82
src/hooks/__tests__/use-keyboard-shortcuts.test.ts
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import { describe, it, expect, vi } from 'vitest';
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import { renderHook } from '@testing-library/react';
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import { useKeyboardShortcuts } from '../use-keyboard-shortcuts';
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describe('useKeyboardShortcuts', () => {
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it('should call handler when keyboard shortcut is pressed', () => {
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const handler = vi.fn();
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const shortcuts = [
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{
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key: 's',
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meta: true,
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handler,
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description: 'Save',
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},
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];
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renderHook(() => useKeyboardShortcuts(shortcuts));
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// Simulate Cmd+S
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const event = new KeyboardEvent('keydown', {
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key: 's',
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metaKey: true,
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bubbles: true,
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});
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window.dispatchEvent(event);
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expect(handler).toHaveBeenCalledTimes(1);
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});
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it('should not call handler if modifiers do not match', () => {
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const handler = vi.fn();
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const shortcuts = [
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{
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key: 's',
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meta: true,
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ctrl: false,
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handler,
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},
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];
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renderHook(() => useKeyboardShortcuts(shortcuts));
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// Simulate just 's' without meta
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const event = new KeyboardEvent('keydown', {
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key: 's',
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bubbles: true,
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});
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window.dispatchEvent(event);
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expect(handler).not.toHaveBeenCalled();
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});
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it('should handle multiple shortcuts', () => {
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const handler1 = vi.fn();
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const handler2 = vi.fn();
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const shortcuts = [
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{ key: 's', meta: true, handler: handler1 },
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{ key: 'p', meta: true, handler: handler2 },
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];
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renderHook(() => useKeyboardShortcuts(shortcuts));
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const event1 = new KeyboardEvent('keydown', {
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key: 's',
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metaKey: true,
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bubbles: true,
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});
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window.dispatchEvent(event1);
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const event2 = new KeyboardEvent('keydown', {
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key: 'p',
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metaKey: true,
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bubbles: true,
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});
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window.dispatchEvent(event2);
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expect(handler1).toHaveBeenCalledTimes(1);
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expect(handler2).toHaveBeenCalledTimes(1);
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});
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});
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71
src/hooks/__tests__/use-mobile.test.ts
Normal file
71
src/hooks/__tests__/use-mobile.test.ts
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import { describe, it, expect, beforeEach } from 'vitest';
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import { renderHook, act } from '@testing-library/react';
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import { useIsMobile } from '../use-mobile';
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describe('useIsMobile', () => {
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beforeEach(() => {
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// Reset window size
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Object.defineProperty(window, 'innerWidth', {
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writable: true,
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configurable: true,
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value: 1024,
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});
|
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});
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it('should return false for desktop width', () => {
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const { result } = renderHook(() => useIsMobile());
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expect(result.current).toBe(false);
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});
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||||
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it('should return true for mobile width', () => {
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Object.defineProperty(window, 'innerWidth', {
|
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writable: true,
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configurable: true,
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value: 375,
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||||
});
|
||||
|
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const { result } = renderHook(() => useIsMobile());
|
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expect(result.current).toBe(true);
|
||||
});
|
||||
|
||||
it('should return true at breakpoint - 1', () => {
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Object.defineProperty(window, 'innerWidth', {
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writable: true,
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configurable: true,
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||||
value: 767, // 768 - 1
|
||||
});
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||||
|
||||
const { result } = renderHook(() => useIsMobile());
|
||||
expect(result.current).toBe(true);
|
||||
});
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||||
|
||||
it('should return false at breakpoint', () => {
|
||||
Object.defineProperty(window, 'innerWidth', {
|
||||
writable: true,
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||||
configurable: true,
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||||
value: 768,
|
||||
});
|
||||
|
||||
const { result } = renderHook(() => useIsMobile());
|
||||
expect(result.current).toBe(false);
|
||||
});
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||||
|
||||
it('should handle window resize', () => {
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const { result } = renderHook(() => useIsMobile());
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||||
|
||||
expect(result.current).toBe(false);
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||||
|
||||
// Simulate resize to mobile
|
||||
act(() => {
|
||||
Object.defineProperty(window, 'innerWidth', {
|
||||
writable: true,
|
||||
configurable: true,
|
||||
value: 500,
|
||||
});
|
||||
window.dispatchEvent(new Event('resize'));
|
||||
});
|
||||
|
||||
// Note: This test may not work perfectly due to how matchMedia works
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||||
// In a real scenario, you'd need to properly mock matchMedia
|
||||
});
|
||||
});
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45
src/test/setup.ts
Normal file
45
src/test/setup.ts
Normal file
|
|
@ -0,0 +1,45 @@
|
|||
import { expect, afterEach, vi } from 'vitest';
|
||||
import { cleanup } from '@testing-library/react';
|
||||
import * as matchers from '@testing-library/jest-dom/matchers';
|
||||
|
||||
// Extend Vitest's expect with jest-dom matchers
|
||||
expect.extend(matchers);
|
||||
|
||||
// Cleanup after each test
|
||||
afterEach(() => {
|
||||
cleanup();
|
||||
});
|
||||
|
||||
// Mock window.matchMedia
|
||||
Object.defineProperty(window, 'matchMedia', {
|
||||
writable: true,
|
||||
value: vi.fn().mockImplementation((query) => ({
|
||||
matches: false,
|
||||
media: query,
|
||||
onchange: null,
|
||||
addListener: vi.fn(),
|
||||
removeListener: vi.fn(),
|
||||
addEventListener: vi.fn(),
|
||||
removeEventListener: vi.fn(),
|
||||
dispatchEvent: vi.fn(),
|
||||
})),
|
||||
});
|
||||
|
||||
// Mock IntersectionObserver
|
||||
global.IntersectionObserver = class IntersectionObserver {
|
||||
constructor() {}
|
||||
disconnect() {}
|
||||
observe() {}
|
||||
takeRecords() {
|
||||
return [];
|
||||
}
|
||||
unobserve() {}
|
||||
} as any;
|
||||
|
||||
// Mock ResizeObserver
|
||||
global.ResizeObserver = class ResizeObserver {
|
||||
constructor() {}
|
||||
disconnect() {}
|
||||
observe() {}
|
||||
unobserve() {}
|
||||
} as any;
|
||||
29
vitest.config.ts
Normal file
29
vitest.config.ts
Normal file
|
|
@ -0,0 +1,29 @@
|
|||
import { defineConfig } from 'vitest/config';
|
||||
import react from '@vitejs/plugin-react';
|
||||
import path from 'path';
|
||||
|
||||
export default defineConfig({
|
||||
plugins: [react()],
|
||||
test: {
|
||||
environment: 'jsdom',
|
||||
globals: true,
|
||||
setupFiles: './src/test/setup.ts',
|
||||
coverage: {
|
||||
provider: 'v8',
|
||||
reporter: ['text', 'json', 'html'],
|
||||
exclude: [
|
||||
'node_modules/',
|
||||
'src/test/',
|
||||
'**/*.d.ts',
|
||||
'**/*.config.*',
|
||||
'**/mockData',
|
||||
'src/main.tsx',
|
||||
],
|
||||
},
|
||||
},
|
||||
resolve: {
|
||||
alias: {
|
||||
'@': path.resolve(__dirname, './src'),
|
||||
},
|
||||
},
|
||||
});
|
||||
Loading…
Reference in a new issue