Test Runner

# test-runner

Write and run tests across languages and frameworks.

## Framework Selection

| Language | Unit Tests | Integration | E2E |
|----------|-----------|-------------|-----|
| TypeScript/JS | Vitest (preferred), Jest | Supertest | Playwright |
| Python | pytest | pytest + httpx | Playwright |
| Swift | XCTest | XCTest | XCUITest |

## Quick Start by Framework

### Vitest (TypeScript / JavaScript)
```bash
npm install -D vitest @testing-library/react @testing-library/jest-dom
```

```typescript
// vitest.config.ts
import { defineConfig } from 'vitest/config'
export default defineConfig({
  test: {
    globals: true,
    environment: 'jsdom',
    setupFiles: './tests/setup.ts',
  },
})
```

```bash
npx vitest              # Watch mode
npx vitest run          # Single run
npx vitest --coverage   # With coverage
```

### Jest
```bash
npm install -D jest @types/jest ts-jest
```

```bash
npx jest                # Run all
npx jest --watch        # Watch mode
npx jest --coverage     # With coverage
npx jest path/to/test   # Single file
```

### pytest (Python)
```bash
uv pip install pytest pytest-cov pytest-asyncio httpx
```

```bash
pytest                          # Run all
pytest -v                       # Verbose
pytest -x                       # Stop on first failure
pytest --cov=app                # With coverage
pytest tests/test_api.py -k "test_login"  # Specific test
pytest --tb=short               # Short tracebacks
```

### XCTest (Swift)
```bash
swift test                      # Run all tests
swift test --filter MyTests     # Specific test suite
swift test --parallel           # Parallel execution
```

### Playwright (E2E)
```bash
npm install -D @playwright/test
npx playwright install
```

```bash
npx playwright test                    # Run all
npx playwright test --headed           # With browser visible
npx playwright test --debug            # Debug mode
npx playwright test --project=chromium # Specific browser
npx playwright show-report             #...