Generate Jest unit tests for JavaScript/TypeScript with mocking, coverage. Use for JS/TS modules, React components, test generation, or encountering missing coverage, improper mocking, test structure errors.
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Generate Jest unit tests for JavaScript/TypeScript with mocking, coverage. Use for JS/TS modules, React components, test generation, or encountering missing coverage, improper mocking, test structure errors.
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Stars194
Forks29
LanguageTypeScript
LicenseMIT
📦 Ships with claude-skills
</> SKILL.md
jest-generator.SKILL.md
---name: jest-generator
description: Generate Jest unit tests for JavaScript/TypeScript with mocking, coverage. Use for JS/TS modules, React components, test generation, or encountering missing coverage, improper mocking, test structure errors.
allowed-tools: Read, Write, Edit, Bash, Grep, Glob
license: MIT
---# Jest Generator Skill
## Purpose
Generate Jest-based unit tests for JavaScript and TypeScript code, following Jest conventions and best practices 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 code
- Need Jest-specific patterns (mocks, spies, snapshots)
## Test File Naming
**Source to Test Mapping:**
- `src/components/Feature.tsx` → `src/components/Feature.test.tsx`
- `src/utils/validator.ts` → `src/utils/validator.test.ts`
- `src/models/User.ts` → `src/models/User.test.ts`
## Running Tests
```bash
# Preferred: Using bun (faster)
bun test
# Run specific file
bun test src/utils/validator.test.ts
