Standardizes software testing with reliable patterns for unit, integration, API, and E2E tests.
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.
Key Features
01Pre-configured coverage thresholds and reporting setup
02Standardized unit and integration test structures for Vitest/Jest
03Standardized mocking patterns for external services and APIs
04End-to-end (E2E) testing patterns using Playwright
05Automated test data factories and database cleanup helpers
061 GitHub stars
Use Cases
01Creating realistic test data using factories and lifecycle hooks
02Setting up a new testing suite for a TypeScript/JavaScript project
03Implementing API integration tests with proper authentication and error handling
