# Testing Setup Complete! 🎉

Your API Client Core project now has a comprehensive testing setup with documentation and utilities.

## What's Been Added

### 📚 Documentation

- **`TESTING_SETUP.md`** - Complete testing guide and reference
- **Test Templates** - Ready-to-use templates for new tests

### 🛠️ Utilities

- **`tests/test-utils.ts`** - Common testing utilities and helpers
- **`tests/example-test-setup.ts`** - Working examples of test patterns
- **`tests/template-node.spec.ts`** - Template for Node.js tests
- **`test/template-browser.test.ts`** - Template for browser tests

### ⚡ VS Code Tasks

- **Test: Run All Tests** - Runs both Node.js and browser tests
- Additional test tasks available in the Command Palette

## Quick Start

### Run All Tests

```bash
npm test
```

### Run Node.js Tests Only

```bash
npm run test:node
```

### Run Browser Tests Only  

```bash
npm run test:browser
```

### Run Tests with Coverage

```bash
npm run test:coverage
```

### Run Tests in Watch Mode

```bash
npm run test:browser:watch
```

## Your Testing Stack

### Node.js Tests (Japa)

- **Location**: `tests/unit/**/*.spec.ts`
- **Framework**: Japa with Assert plugin
- **Features**: Sinon mocking, API client testing, type checking
- **Run with**: `npm run test:node`

### Browser Tests (Web Test Runner)  

- **Location**: `test/**/*.browser.test.ts` or `test/**/*.spec.ts`
- **Framework**: Web Test Runner with Chai
- **Features**: Playwright automation, OAuth2 mock server, DOM testing
- **Run with**: `npm run test:browser`

## File Naming Conventions

- **Node.js tests**: `*.spec.ts` in `tests/unit/`
- **Browser tests**: `*.browser.test.ts` or `*.spec.ts` in `test/`
- **Shared utilities**: Place in `test/` directory

## Next Steps

1. **Review the documentation** in `TESTING_SETUP.md`
2. **Explore the examples** in `test/example-test-setup.ts`
3. **Use the templates** to create new tests:
   - Copy `test/template-node.spec.ts` for Node.js tests
   - Copy `test/template-browser.test.ts` for browser tests
4. **Run the existing tests** to ensure everything works
5. **Write tests for your modules** using the patterns shown

## Testing Best Practices

✅ **Separate Node.js and browser tests** - Use appropriate file naming  
✅ **Use test utilities** - Leverage `TestUtils` for common operations  
✅ **Mock external dependencies** - Use Sinon for consistent mocking  
✅ **Test both success and error cases** - Ensure comprehensive coverage  
✅ **Group related tests** - Use test groups for better organization  
✅ **Clean up after tests** - Restore mocks and clean up resources  

## Available Test Utilities

- `TestUtils.createMockResponse()` - HTTP response mocking
- `TestUtils.createTestRequest()` - HTTP request creation  
- `TestUtils.generateTestData()` - Random test data
- `TestUtils.assertThrows()` - Error testing
- `TestUtils.mockFetch()` - Fetch API mocking
- `BrowserTestUtils.waitForElement()` - DOM element waiting
- `BrowserTestUtils.createMockLocalStorage()` - Storage mocking

## Need Help?

- Check `TESTING_SETUP.md` for detailed documentation
- Look at existing tests in `tests/unit/` for examples
- Review the templates for common patterns
- Run tests with `--verbose` flag for more output

Happy testing! 🚀
