---

name: Writing Tests description: Comprehensive guide for writing unit tests, integration tests, and component tests in AiderDesk using Vitest. Use when creating new tests, configuring mocks, or organizing test files.

Writing Tests

Write effective tests using Vitest and React Testing Library.

Quick Start

Create a unit test in src/common/__tests__/utils/math.test.ts:

Copyimport { describe, it, expect } from 'vitest';
import { add } from '../../utils/math';

describe('math utility', () => {
  it('adds two numbers correctly', () => {
    expect(add(1, 2)).toBe(3);
  });
});

Run tests with npm run test.

Core Patterns

Unit Testing

Focus on pure functions and logic in src/main or src/common. Use vi.mock() for dependencies.

• references/unit-testing-examples.md

Component Testing

Test React components in src/renderer. Focus on user interactions and props.

• references/component-testing-patterns.md

Mocking

Use centralized mock factories for consistent testing across components and contexts.

• references/mocking-guide.md - Mock factories and API patterns

Advanced Usage

For detailed information:

• references/test-organization.md - Directory structure and naming
• references/running-tests.md - CLI commands and coverage
• references/best-practices.md - Principles and patterns
• references/test-patterns.md - Code templates
• assets/test-checklist.md - Pre-flight checklist