Does it provide the code or just instructions?

The skill provides functional code snippets that are ready to be integrated directly into your unit test files.

Can this skill identify dependencies automatically?

Yes, it analyzes your source code to identify external imports and services that need to be replaced with test doubles for isolation.

Which testing frameworks does this skill support?

The skill is optimized for popular JavaScript and TypeScript testing frameworks including Jest and Sinon.

How do I trigger the test double generation?

You can trigger the skill by asking Claude to generate test doubles or by using the shorthand commands `/gen-doubles` or `/gd`.

What is the difference between the mocks and stubs it creates?

It generates mocks for behavior verification (expecting calls) and stubs for providing controlled responses to dependencies.

Test Double Generator

Name: Test Double Generator
Author: BbgnsurfTech

byBbgnsurfTech

•

Security & Testing

Generates mocks, stubs, and spies for unit testing by automatically analyzing code dependencies and framework requirements.

The Test Double Generator skill streamlines the unit testing process by automatically creating mocks, stubs, spies, and fakes to isolate code units. By analyzing existing code and dependencies, it generates framework-specific doubles for popular tools like Jest and Sinon, significantly reducing the manual effort required to write robust test suites. Whether you need to simulate API responses or track object interactions, this skill provides ready-to-use code snippets that ensure high-quality, isolated testing.

Key Features

01Automated dependency analysis

023 GitHub stars

03Framework-specific code generation for Jest and Sinon

04Direct code insertion via CLI commands

05Context-aware test isolation logic

06Support for mocks, stubs, spies, and fakes

Use Cases

01Mocking external API calls to simulate various response scenarios

02Stubbing service dependencies to isolate business logic during unit tests

03Implementing spies to track and verify interactions with real objects

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bbgnsurftech/claude-skills-collection skill-adapter

For use in Claude.ai and ChatGPT

Download Skill