jest-testing

# Jest Testing Skill ## Overview This skill provides expert-level capabilities for Jest-based testing, enabling comprehensive unit testing, snapshot testing, and integration with React Testing Library. ## Capabilities ### Test Execution - Configure Jest for various project types (Node, React, TypeScript) - Execute tests with coverage collection - Parallel test execution configuration - Watch mode and selective test running ### Unit Testing - Write unit tests with proper mocking - Configure custom matchers and test utilities - Mock module resolution and timer handling - Handle async testing patterns ### Snapshot Testing - Configure and manage snapshot tests - Handle snapshot updates and reviews - Implement inline snapshots ### Coverage Analysis - Coverage report generation and analysis - Configure coverage thresholds - Identify uncovered code paths ### React Integration - Integration with React Testing Library - Component testing patterns - Hook testing utilities ## Target Processes - `automation-framework.js` - Test framework setup - `mutation-testing.js` - Test quality assessment - `continuous-testing.js` - CI/CD integration - `shift-left-testing.js` - Early testing integration ## Dependencies - `jest` - Test runner - `@testing-library/react` - React testing utilities - `ts-jest` - TypeScript support (optional) ## Usage Example ```javascript { kind: 'skill', skill: { name: 'jest-testing', context: { action: 'execute-tests', testPath: 'sr...