Testing Infrastructure Summary

What Was Implemented

This document summarizes the complete testing infrastructure rebuild for the Gofannon project.

Key Achievements

✅ Full test coverage infrastructure for frontend and backend ✅ 95% minimum coverage requirement enforced via CI/CD ✅ Automated PR checks run unit tests on every pull request ✅ Nightly integration tests run comprehensive tests daily ✅ Comprehensive documentation for writing and maintaining tests ✅ Example tests demonstrating best practices ✅ Test data factories for generating consistent test fixtures

Testing Strategy

Test Types

Type	Location	Run When	Purpose
Unit Tests (Frontend)	packages/webui/src/**/*.test.jsx	Every PR	Test React components in isolation
Unit Tests (Backend)	packages/api/user-service/tests/unit/	Every PR	Test Python functions/classes in isolation
Integration Tests	packages/api/user-service/tests/integration/	Nightly	Test with real services (DB, S3, etc.)
E2E Tests	webapp/tests/e2e/	Nightly	Test complete user workflows

Coverage Requirements

• Minimum: 95% for lines, functions, branches, statements
• Enforced: CI/CD blocks PRs below threshold
• Reported: Codecov integration for tracking over time

Infrastructure Components

Frontend Testing (Vitest)

Files Created:

• vitest.config.ts - Vitest configuration
• src/test/setup.ts - Test environment setup
• src/components/ActionCard.test.jsx - Example component test
• src/test/utils.test.js - Example utility test

Dependencies Added:

• vitest - Test runner
• @testing-library/react - React component testing utilities
• @testing-library/user-event - User interaction simulation
• @testing-library/jest-dom - DOM matchers
• @vitest/ui - Interactive test UI
• @vitest/coverage-v8 - Coverage reporting
• jsdom - DOM environment for Node

Commands:

pnpm test                  # Run tests
pnpm test:ui              # Interactive UI
pnpm test:coverage        # With coverage report

Backend Testing (pytest)

Files Created:

• pytest.ini - pytest configuration
• .coveragerc - Coverage settings
• tests/conftest.py - Shared fixtures
• tests/factories/ - Test data factories
  • agent_factory.py
  • user_factory.py
  • chat_factory.py
• tests/unit/test_user_service.py - Example service tests
• tests/unit/test_user_model.py - Example model tests
• tests/integration/test_health_endpoint.py - Example integration test

Dependencies Added:

• pytest>=8.0.0 - Test framework
• pytest-asyncio>=0.23.0 - Async test support
• pytest-cov>=4.1.0 - Coverage plugin
• pytest-mock>=3.12.0 - Mocking utilities
• factory-boy>=3.3.0 - Test data factories
• faker>=22.0.0 - Fake data generation

Commands:

python -m pytest tests/unit              # Unit tests
python -m pytest tests/integration       # Integration tests
python -m pytest --cov=. --cov-report=html  # With coverage

CI/CD Workflows

Files Created:

1. pr-unit-tests.yml - Runs on every PR

   • Frontend unit tests with coverage
   • Backend unit tests with coverage
   • Lint checks
   • Coverage threshold validation
   • Codecov upload

2. nightly-integration-tests.yml - Runs daily at 2 AM UTC

   • Backend integration tests with full Docker stack
   • E2E tests with Playwright
   • Uses GitHub Secrets for API keys (OPENAI_API_KEY, AWS credentials)
   • Collects logs on failure
   • Sends notifications on failure

Secrets Required:

• OPENAI_API_KEY - For AI model testing
• GEMINI_API_KEY - For alternative AI model
• AWS_ACCESS_KEY_ID - For S3 integration tests
• AWS_SECRET_ACCESS_KEY - For S3 integration tests
• AWS_REGION - AWS region (optional, defaults to us-east-1)

NPM Scripts

Updated package.json:

{
  "test": "pnpm run test:unit && pnpm run test:integration",
  "test:unit": "pnpm run test:unit:frontend && pnpm run test:unit:backend",
  "test:unit:frontend": "pnpm --filter webui test",
  "test:unit:backend": "cd packages/api/user-service && python -m pytest tests/unit -v",
  "test:integration": "pnpm run test:integration:backend && pnpm run test:e2e",
  "test:integration:backend": "cd packages/api/user-service && python -m pytest tests/integration -v",
  "test:e2e": "playwright test",
  "test:coverage": "pnpm run test:coverage:frontend && pnpm run test:coverage:backend",
  "test:coverage:frontend": "pnpm --filter webui test:coverage",
  "test:coverage:backend": "cd packages/api/user-service && python -m pytest tests/unit --cov=. --cov-report=html --cov-report=term-missing"
}

Documentation

Created in docs/testing/:

1. README.md - Testing overview and quick start
2. unit-testing.md - Comprehensive unit testing guide
3. contributing.md - PR requirements and guidelines
4. SUMMARY.md - This document

Topics Covered:

• Testing philosophy and strategy
• Running tests locally
• Writing unit tests (frontend & backend)
• Using test factories
• Mocking dependencies
• Testing async code
• Coverage requirements
• PR requirements
• Best practices
• Common patterns
• Troubleshooting

Test Examples

Backend Unit Test Example

class TestUserService:
    @pytest.fixture
    def mock_db(self):
        db = Mock()
        db.get = Mock(return_value={"id": "test-123"})
        return db

    def test_get_user_existing(self, user_service, mock_db):
        user = user_service.get_user("test-123")
        mock_db.get.assert_called_once_with("users", "test-123")
        assert user.id == "test-123"

Frontend Unit Test Example

describe('ActionCard', () => {
  it('calls onClick when clicked', async () => {
    const onClick = vi.fn();
    render(<ActionCard {...props} onClick={onClick} />);

    await userEvent.click(screen.getByRole('button'));

    expect(onClick).toHaveBeenCalled();
  });
});

Project Structure

webapp/
├── packages/
│   ├── webui/                          # Frontend
│   │   ├── src/
│   │   │   ├── components/*.test.jsx   # Component tests
│   │   │   └── test/
│   │   │       ├── setup.ts            # Test setup
│   │   │       └── *.test.js           # Utility tests
│   │   └── vitest.config.ts            # Vitest config
│   │
│   └── api/user-service/               # Backend
│       ├── tests/
│       │   ├── conftest.py             # Pytest fixtures
│       │   ├── unit/                   # Unit tests
│       │   ├── integration/            # Integration tests
│       │   └── factories/              # Test data factories
│       ├── pytest.ini                  # Pytest config
│       └── .coveragerc                 # Coverage config
│
└── package.json                        # NPM scripts

.github/workflows/
├── pr-unit-tests.yml                   # PR checks
└── nightly-integration-tests.yml       # Nightly tests

docs/testing/
├── README.md                           # Overview
├── unit-testing.md                     # Unit test guide
├── contributing.md                     # PR requirements
└── SUMMARY.md                          # This file

Usage Guide

For Developers

When writing new code:

1. Write tests first (TDD)
2. Ensure 95% coverage on new files
3. Run pnpm test:unit before committing
4. PR checks will run automatically

When reviewing PRs:

1. Verify tests exist for new code
2. Check coverage reports
3. Run tests locally if needed
4. Ensure CI checks pass

For Contributors

Required for every PR:

• Unit tests for new/modified code
• 95% minimum coverage
• All tests passing
• No lint errors

See contributing.md for detailed guidelines.

Maintenance

Adding New Tests

Backend:

# Create test file
touch tests/unit/test_new_feature.py

# Write tests following examples
# Run to verify
python -m pytest tests/unit/test_new_feature.py -v

Frontend:

# Create test file next to component
touch src/components/NewComponent.test.jsx

# Write tests following examples
# Run to verify
pnpm test NewComponent.test.jsx

Updating Coverage Thresholds

Frontend: Edit vitest.config.ts

coverage: {
  thresholds: {
    lines: 95,  // Adjust here
    functions: 95,
    branches: 95,
    statements: 95,
  }
}

Backend: Edit pytest.ini

addopts =
    --cov-fail-under=95  # Adjust here

Adding GitHub Secrets

1. Go to repository Settings → Secrets and variables → Actions
2. Click "New repository secret"
3. Add required secrets:
   • OPENAI_API_KEY
   • AWS_ACCESS_KEY_ID
   • AWS_SECRET_ACCESS_KEY
   • AWS_REGION (optional)

Benefits

For Development

• ✅ Catch bugs early
• ✅ Faster debugging
• ✅ Safe refactoring
• ✅ Living documentation
• ✅ Better code design

For Collaboration

• ✅ Consistent quality bar
• ✅ Easier code reviews
• ✅ Onboarding documentation
• ✅ Prevents regressions
• ✅ CI/CD confidence

For Maintenance

• ✅ Easy to add features
• ✅ Safe to modify code
• ✅ Coverage tracking
• ✅ Automated validation
• ✅ Long-term stability

Next Steps

1. Install dependencies:

   cd webapp
   pnpm install
   cd packages/api/user-service
   pip install -r requirements.txt

2. Run tests:

   cd webapp
   pnpm test:unit

3. Check coverage:

   pnpm test:coverage

4. Read the guides:

   • Start with README.md
   • Review unit-testing.md
   • Read contributing.md before your first PR

5. Write your first test:

   • Pick a file without tests
   • Follow the examples
   • Aim for 100% coverage
   • Run and verify

Support

• Documentation: Check docs/testing/
• Examples: Review existing test files
• Questions: Ask in team chat or PR comments
• Issues: Open a GitHub issue for testing infrastructure problems

---

Testing infrastructure implemented: January 2025 Documentation version: 1.0