Jest Generator Skill

Purpose

This skill generates Jest-based unit tests for JavaScript and TypeScript code, following Jest conventions, best practices, and project standards. It creates comprehensive test suites with proper mocking, describe blocks, and code organization.

When to Use

• Generate Jest tests for JavaScript/TypeScript modules
• Create test files for React components
• Add missing test coverage to existing JS/TS code
• Need Jest-specific patterns (mocks, spies, snapshots)

Test File Naming Convention

Source to Test Mapping:

• Source: src/components/Feature.tsx
• Test: src/components/Feature.test.tsx
• Pattern: <source_filename>.test.ts or <source_filename>.test.js