Can I use this skill for frontend component testing?

Absolutely. While it focuses on logic patterns, the strategies are fully compatible with Testing Library for React, Vue, and other frontend frameworks.

Does it help with Test-Driven Development (TDD)?

Yes, it provides the scaffolding and boilerplate needed to write tests before implementation, facilitating a seamless TDD workflow.

Does this skill support both Jest and Vitest?

Yes, it provides comprehensive configuration patterns and implementation guides for both Jest and Vitest testing frameworks.

How does it handle mocking external APIs?

The skill includes specific patterns for mocking the global fetch API and module-level dependencies like axios or nodemailer.

JavaScript Testing Patterns

Name: JavaScript Testing Patterns
Author: HermeticOrmus

byHermeticOrmus

0•

Security & Testing

Implements comprehensive testing strategies using Jest and Vitest to ensure reliability in JavaScript and TypeScript applications.

JavaScript Testing Patterns provides a standardized framework for building robust test suites across the entire development lifecycle. It equips developers with production-ready patterns for unit, integration, and end-to-end testing, utilizing modern tools like Jest and Vitest. The skill simplifies complex tasks such as mocking external dependencies, testing asynchronous workflows, and implementing dependency injection, enabling teams to maintain high code coverage and adopt Test-Driven Development (TDD) with ease.

Key Features

010 GitHub stars

02Advanced mocking patterns for modules and global APIs

03Functional spying and lifecycle management patterns

04Pre-configured Jest and Vitest environment setups

05Asynchronous testing strategies for promises and fetch calls

06Dependency injection templates for isolated unit testing

Use Cases

01Establishing a test-driven development workflow for new features

02Configuring automated test coverage reports for CI/CD pipelines

03Isolating complex business logic from external service dependencies

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/hermetic-academy javascript-testing-patterns

For use in Claude.ai and ChatGPT

Download Skill