소개
The Test Patterns skill provides a comprehensive library of reusable templates and best practices for creating robust, maintainable test suites across the entire development stack. It includes standardized structures for unit testing with Vitest and Jest, end-to-end flows with Playwright, and API endpoint validation, alongside utility patterns for database cleanup, external service mocking, and code coverage configuration. This skill ensures that Claude generates consistent, high-quality tests that follow industry-standard isolation and reliability principles to prevent regression and eliminate flakiness.