概要
The JavaScript Testing Patterns skill provides a comprehensive toolkit for implementing high-quality test suites in modern JS/TS environments. It offers standardized patterns for unit testing pure functions and classes, mocking external dependencies, handling asynchronous operations, and setting up complex test infrastructures. By following these industry-standard practices for Jest and Vitest, developers can ensure higher code reliability, maintainable test suites, and streamlined TDD/BDD workflows across both frontend and backend projects.