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Testing

Backend Tests

Run All Tests

cd backend
pytest tests/ -v

Run with Coverage

pytest tests/ --cov=app --cov-report=html

Coverage report generated in htmlcov/index.html

Test Structure

backend/tests/
├── conftest.py           # Test fixtures and configuration
├── test_main.py          # API endpoint tests
├── test_gemini_service.py # AI service tests
├── test_integration.py   # Integration tests
└── test_fasting.py       # Fasting feature tests

Current Status

  • Total tests: 85
  • Coverage: 74.5%
  • All critical paths tested

Frontend Tests

Run All Tests

cd frontend
npm test

Run in Watch Mode

npm run test:watch

Run with UI

npm run test:ui

Generate Coverage Report

npm run test:coverage

Test Structure

frontend/src/
├── components/
│   └── __tests__/       # Component tests
├── services/
│   └── __tests__/       # Service tests
└── pages/
    └── __tests__/       # Page tests

Current Status

  • Total tests: 137
  • Passing: 137
  • Coverage: 60.4%
  • Framework: Vitest + React Testing Library

Continuous Integration

Tests run automatically via GitHub Actions on:

  • Pull requests
  • Pushes to main branch

See .github/workflows/ci.yml for CI configuration.

Writing Tests

Backend Test Example

def test_search_food(client):
    response = client.get("/api/search-food?query=apple")
    assert response.status_code == 200
    assert "foods" in response.json()

Frontend Test Example

import { render, screen } from '@testing-library/react'
import { Login } from './Login'

test('renders login form', () => {
  render(<Login />)
  expect(screen.getByText('Sign In')).toBeInTheDocument()
})

Troubleshooting

Backend tests fail with import errors

Ensure virtual environment is activated:

source venv/bin/activate  # macOS/Linux
venv\Scripts\activate     # Windows

Frontend tests fail with module errors

Clear cache and reinstall:

rm -rf node_modules
npm install

Tests pass locally but fail in CI

Check:

  • Environment variables are set in GitHub Secrets
  • Dependencies are correctly specified in requirements.txt and package.json
  • No system-specific paths in tests

Next: Deployment