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Testing

Backend Tests

The backend is now Supabase Edge Functions (supabase/functions/). The old FastAPI pytest suite (85 tests) was retired along with the FastAPI app - it tested code that no longer exists. There is no automated backend test suite yet; adding one would mean deno test specs per function (not set up here).

Manually verify a function locally with:

supabase functions serve --env-file supabase/.env
curl "http://localhost:54321/functions/v1/search-food?query=apple"

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

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

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 package.json
  • No system-specific paths in tests

Next: Deployment