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vitest

Guide TypeScript testing with Vitest for unit, component, and integration tests.

Updated Apr 13, 2026
Search Tags:#typescript#vitest#testing#react#vue
One-click install
npx skills add https://github.com/optioni/dungeons-and-dragons --skill vitest-optioni
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/optioni/dungeons-and-dragons/tree/main/.claude/skills/vitest
Command: npx skills add https://github.com/optioni/dungeons-and-dragons --skill vitest-optioni

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires vitest, @testing-library/react, @vue/test-utils, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive guide to modern TypeScript testing using Vitest, a fast and feature-rich testing framework.

Core Features & Use Cases

  • Fast Test Execution: Utilizes Vite's HMR for instant feedback and fast test runs.
  • TypeScript Integration: Built-in support for TypeScript, no configuration needed.
  • ESM Support: Native ESM support for modern JavaScript projects.
  • React/Vue Integration: Seamless integration with React Testing Library and Vue Test Utils.
  • Use Case: A developer can use this Skill to set up and run tests for a TypeScript project with React or Vue components.

Quick Start

Install Vitest and run tests with the command: npx vitest.

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I set up TypeScript testing with Vitest for my project?▼

TypeScript testing with Vitest requires installing the framework and running tests via the `npx vitest` command. It provides built-in TypeScript support, requiring no additional configuration to start executing unit and integration tests.

Can I test React components using Vitest and Testing Library?▼

Yes, you can test React components using Vitest alongside the @testing-library/react dependency. This combination allows developers to seamlessly perform component testing and validate UI behavior within a TypeScript testing environment.

Does Vitest support ESM and native TypeScript without extra configuration?▼

Yes, Vitest provides native ESM support and built-in TypeScript integration without requiring extra configuration. This ESM-first approach ensures modern JavaScript projects run tests natively, leveraging Vite's fast execution capabilities.

What is the best way to run unit and integration tests for Vue components?▼

The best way to run unit and integration tests for Vue components is using Vitest with the @vue/test-utils dependency. This setup leverages Vite's HMR for fast test execution and provides seamless integration for testing Vue components.

Why use Vitest over other testing frameworks for modern JavaScript projects?▼

Vitest is chosen for modern JavaScript projects due to its ESM-first architecture and Vite-powered HMR for instant feedback. It provides fast, TypeScript-integrated test execution without the configuration overhead required by other testing frameworks.

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