react-testing

Test React components and custom hooks with Vitest and React Testing Library.

51|10|Updated Oct 22, 2025
One-click install
npx skills add https://github.com/JosiahSiegel/claude-plugin-marketplace --skill react-testing-josiahsiegel
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: react-testing
Source: https://github.com/JosiahSiegel/claude-plugin-marketplace/tree/main/plugins/react-master/skills/react-testing
Command: npx skills add https://github.com/JosiahSiegel/claude-plugin-marketplace --skill react-testing-josiahsiegel

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a comprehensive system for testing React components, ensuring their reliability, functionality, and adherence to user behavior and accessibility standards.

Core Features & Use Cases

  • Test Setup: Guides for Vitest and Jest configuration.
  • Component Testing: Demonstrates patterns for testing individual components, forms, and async operations.
  • Hook Testing: Shows how to test custom React hooks in isolation and with context.
  • Accessibility Testing: Integrates jest-axe for ensuring accessible UI.
  • Use Case: You've built a complex form in React. Use this Skill to write robust tests that verify user input, form submission, error handling, and accessibility compliance, giving you confidence in the component's quality.

Quick Start

Use the react-testing skill to set up Vitest for a React project.

Frequently Asked Questions about react-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test React components with Vitest and React Testing Library?

To test React components with Vitest and React Testing Library, you need to configure your test setup and use specific patterns for component interaction, form handling, and asynchronous operations to verify user behavior robustly.

What is the best way to test custom React hooks that use context?

The best way to test custom React hooks with context is to isolate the hook and wrap it in a custom render function that provides the necessary context providers, ensuring accurate testing of hook state and effects.

Can I use jest-axe to check accessibility in React component testing?

Yes, you can integrate jest-axe into React component testing to automatically check UI accessibility. This ensures your components adhere to user behavior and accessibility standards during test runs.

How do I mock functions and modules in Vitest for React integration tests?

Mocking functions and modules in Vitest for React integration tests involves applying specific mocking strategies to isolate components, ensuring robust verification of component interaction and overall application behavior.

Does this React testing guide cover asynchronous operations and form submissions?

Yes, this React testing guide covers asynchronous operations and form submissions. It provides comprehensive patterns for verifying user input, form submission states, and error handling in complex forms.

Why should I use React Testing Library instead of testing implementation details?

You should use React Testing Library to ensure user-centric testing of React applications. It focuses on component interaction and accessibility rather than implementation details, giving you confidence in actual user behavior.