# E2E Testing Setup Summary for mockupAWS v0.4.0

## Overview

End-to-End testing has been successfully set up with Playwright for mockupAWS v0.4.0. This setup includes comprehensive test coverage for all major user flows, visual regression testing, and CI/CD integration.

## Files Created

### Configuration Files

| File | Path | Description |
|------|------|-------------|
| `playwright.config.ts` | `/frontend/playwright.config.ts` | Main Playwright configuration with multi-browser support |
| `package.json` (updated) | `/frontend/package.json` | Added Playwright dependency and npm scripts |
| `tsconfig.json` | `/frontend/e2e/tsconfig.json` | TypeScript configuration for E2E tests |
| `.gitignore` (updated) | `/frontend/.gitignore` | Excludes test artifacts from git |
| `e2e.yml` | `/.github/workflows/e2e.yml` | GitHub Actions workflow for CI |

### Test Files

| Test File | Description | Test Count |
|-----------|-------------|------------|
| `setup-verification.spec.ts` | Verifies E2E environment setup | 9 tests |
| `scenario-crud.spec.ts` | Scenario create, read, update, delete | 11 tests |
| `ingest-logs.spec.ts` | Log ingestion and metrics updates | 9 tests |
| `reports.spec.ts` | Report generation and download | 10 tests |
| `comparison.spec.ts` | Scenario comparison features | 16 tests |
| `navigation.spec.ts` | Routing, 404, mobile responsive | 21 tests |
| `visual-regression.spec.ts` | Visual regression testing | 18 tests |

**Total: 94 test cases across 7 test files**

### Supporting Files

| File | Path | Description |
|------|------|-------------|
| `test-scenarios.ts` | `/e2e/fixtures/test-scenarios.ts` | Sample scenario data for tests |
| `test-logs.ts` | `/e2e/fixtures/test-logs.ts` | Sample log data for tests |
| `test-helpers.ts` | `/e2e/utils/test-helpers.ts` | Shared test utilities |
| `global-setup.ts` | `/e2e/global-setup.ts` | Global test setup (runs once) |
| `global-teardown.ts` | `/e2e/global-teardown.ts` | Global test teardown (runs once) |
| `README.md` | `/e2e/README.md` | Comprehensive testing guide |

## NPM Scripts Added

```json
{
  "test:e2e": "playwright test",
  "test:e2e:ui": "playwright test --ui",
  "test:e2e:debug": "playwright test --debug",
  "test:e2e:headed": "playwright test --headed",
  "test:e2e:ci": "playwright test --reporter=dot,html"
}
```

## Playwright Configuration Highlights

### Browsers Configured
- **Chromium** (Desktop Chrome)
- **Firefox** (Desktop Firefox)
- **Webkit** (Desktop Safari)
- **Mobile Chrome** (Pixel 5)
- **Mobile Safari** (iPhone 12)
- **Tablet** (iPad Pro 11)

### Features Enabled
- ✅ Screenshot capture on failure
- ✅ Video recording for debugging
- ✅ Trace collection on retry
- ✅ HTML, list, and JUnit reporters
- ✅ Parallel execution (disabled in CI)
- ✅ Automatic test server startup
- ✅ Global setup and teardown hooks

### Timeouts
- Test timeout: 60 seconds
- Action timeout: 15 seconds
- Navigation timeout: 30 seconds
- Expect timeout: 10 seconds

## Test Coverage

### QA-E2E-001: Playwright Setup ✅
- [x] `@playwright/test` installed
- [x] `playwright.config.ts` created
- [x] Test directory: `frontend/e2e/`
- [x] Base URL: http://localhost:5173
- [x] Multiple browsers configured
- [x] Screenshot on failure
- [x] Video recording for debugging
- [x] NPM scripts added

### QA-E2E-002: Test Scenarios ✅
- [x] `scenario-crud.spec.ts` - Create, edit, delete scenarios
- [x] `ingest-logs.spec.ts` - Log ingestion and metrics
- [x] `reports.spec.ts` - PDF/CSV report generation
- [x] `comparison.spec.ts` - Multi-scenario comparison
- [x] `navigation.spec.ts` - All routes and responsive design

### QA-E2E-003: Test Data & Fixtures ✅
- [x] `test-scenarios.ts` - Sample scenario data
- [x] `test-logs.ts` - Sample log data
- [x] Database seeding via API helpers
- [x] Cleanup mechanism after tests
- [x] Parallel execution configured

### QA-E2E-004: Visual Regression Testing ✅
- [x] Visual regression setup with Playwright
- [x] Baseline screenshots directory
- [x] 20% threshold for differences
- [x] Tests for critical UI pages
- [x] Dark mode testing support
- [x] Cross-browser visual testing

## How to Run Tests

### Local Development

```bash
# Install dependencies
cd frontend
npm install

# Install Playwright browsers
npx playwright install

# Run all tests
npm run test:e2e

# Run with UI mode (interactive)
npm run test:e2e:ui

# Run specific test file
npx playwright test scenario-crud.spec.ts

# Run in debug mode
npm run test:e2e:debug

# Run with visible browser
npm run test:e2e:headed
```

### CI Mode

```bash
# Run tests as in CI
npm run test:e2e:ci
```

### Visual Regression

```bash
# Run visual tests
npx playwright test visual-regression.spec.ts

# Update baseline screenshots
UPDATE_BASELINE=true npx playwright test visual-regression.spec.ts
```

## Prerequisites

1. **Backend running** on http://localhost:8000
2. **Frontend dev server** will be started automatically by Playwright
3. **PostgreSQL** database (if using full backend)

## Coverage Report Strategy

### Current Setup
- HTML reporter generates `e2e-report/` directory
- JUnit XML output for CI integration
- Screenshots and videos on failure
- Trace files for debugging

### Future Enhancements
To add code coverage:

1. **Frontend Coverage**:
   ```bash
   npm install -D @playwright/test istanbul-lib-coverage nyc
   ```
   Instrument code with Istanbul and collect coverage during tests.

2. **Backend Coverage**:
   Use pytest-cov with Playwright tests to measure API coverage.

3. **Coverage Reporting**:
   - Upload coverage reports to codecov.io
   - Block PRs if coverage drops below threshold
   - Generate coverage badges

## GitHub Actions Workflow

The workflow (`/.github/workflows/e2e.yml`) includes:

1. **E2E Tests Job**: Runs all tests on every push/PR
2. **Visual Regression Job**: Compares screenshots on PRs
3. **Smoke Tests Job**: Quick sanity checks on pushes

### Workflow Features
- PostgreSQL service container
- Backend server startup
- Artifact upload for reports
- Parallel job execution
- Conditional visual regression on PRs

## Test Architecture

### Design Principles
1. **Deterministic**: Tests use unique names and clean up after themselves
2. **Isolated**: Each test creates its own data
3. **Fast**: Parallel execution where possible
4. **Reliable**: Retry logic for flaky operations
5. **Maintainable**: Shared utilities and fixtures

### Data Flow
```
Global Setup → Test Suite → Individual Tests → Global Teardown
    ↓              ↓              ↓                ↓
  Create dirs  Create data   Run assertions   Cleanup data
```

### API Helpers
All test files use shared API helpers for:
- Creating/deleting scenarios
- Starting/stopping scenarios
- Sending logs
- Generating unique names

## Next Steps

1. **Run setup verification**:
   ```bash
   npx playwright test setup-verification.spec.ts
   ```

2. **Generate baseline screenshots** (for visual regression):
   ```bash
   UPDATE_BASELINE=true npx playwright test visual-regression.spec.ts
   ```

3. **Add data-testid attributes** to frontend components for more robust selectors

4. **Configure environment variables** in `.env` file if needed

5. **Start backend** and run full test suite:
   ```bash
   npm run test:e2e
   ```

## Troubleshooting

### Common Issues

1. **Browsers not installed**:
   ```bash
   npx playwright install
   ```

2. **Backend not accessible**:
   - Ensure backend is running on port 8000
   - Check CORS configuration

3. **Tests timeout**:
   - Increase timeout in `playwright.config.ts`
   - Check if dev server starts correctly

4. **Visual regression failures**:
   - Review diff images in `e2e/screenshots/diff/`
   - Update baselines if UI intentionally changed

## Support

- **Playwright Docs**: https://playwright.dev/
- **Test Examples**: See `e2e/README.md`
- **GitHub Actions**: Workflow in `.github/workflows/e2e.yml`
