Jest React Testing

A comprehensive skill for testing React applications using Jest and React Testing Library. This skill covers everything from basic component testing to advanced patterns including mocking, async testing, custom hooks testing, and integration testing strategies.

When to Use This Skill

Use this skill when:

• Testing React components with Jest and React Testing Library
• Setting up Jest configuration for React projects
• Writing unit tests for components, hooks, and utilities
• Testing user interactions and component behavior
• Mocking modules, functions, API calls, and external dependencies
• Testing asynchronous operations (API calls, timers, promises)
• Testing custom React hooks
• Writing integration tests for complex component trees
• Debugging failing tests or improving test coverage
• Following testing best practices and patterns