# Testing Guide

## Overview

This project uses two testing frameworks:
- **Vitest** for unit and integration tests (src/__tests__)
- **Playwright** for end-to-end tests (tests/e2e/)

## Running Tests

### Unit/Integration Tests (Vitest)

```bash
# Run all unit tests
npm run test

# Run tests in watch mode (auto-rerun on changes)
npm test

# Run tests with coverage report
npm run test:coverage

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

### End-to-End Tests (Playwright)

```bash
# Run all E2E tests
npm run test:e2e

# Run E2E tests with UI
npm run test:e2e:ui

# Run E2E tests in headed mode (see browser)
npm run test:e2e:headed
```

## App Tenant Validation Tests

Location: `src/__tests__/App.tenant.test.tsx`

Tests the critical subdomain-based tenant validation logic. Run with:

```bash
npm test -- App.tenant
```

See `src/__tests__/README.md` for detailed testing documentation.