[TEST-001] Increase Test Coverage to 70%

[AndrewHakmi]

Problem

Minimal test coverage: ~15% estimated

Current state:

• Backend: 726 lines of tests for ~5800 lines of code
• Frontend: No test files found
• Missing: Auth, proposals, engine, services

Target Coverage

• Backend: 70%+ line coverage
• Frontend: 60%+ line coverage
• Critical paths: 90%+ coverage

Implementation Plan

1. Setup Test Infrastructure

# Backend
pip install pytest-cov pytest-asyncio

# Frontend
npm install --save-dev @testing-library/react vitest @testing-library/jest-dom

2. Priority Test Areas (Backend)

• tests/api/test_auth.py - Authentication flow
• tests/api/test_engine.py - Roadmap generation
• tests/api/test_proposals.py - Proposal lifecycle
• tests/services/test_graph_repo.py - Graph operations
• tests/workers/test_commit.py - Transaction handling

3. Priority Test Areas (Frontend)

• tests/pages/ExplorePage.test.tsx - Graph visualization
• tests/components/AIChat.test.tsx - Chat functionality
• tests/api.test.ts - API client
• tests/store/exploreSlice.test.ts - Redux state

4. Configure Coverage

# pytest.ini
[pytest]
testpaths = tests
addopts =
    --cov=app
    --cov-report=html
    --cov-report=term-missing
    --cov-fail-under=70

5. CI Integration

Add to .github/workflows/ci.yml:

- name: Run tests with coverage
  run: |
    pytest --cov=app --cov-report=xml

- name: Upload coverage
  uses: codecov/codecov-action@v3

Estimated Time

15-20 hours (comprehensive coverage)

References

• COMPREHENSIVE_TODO.md: TEST-001