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vitest

Write and run Jest-compatible unit tests with Vitest for Vite, Vue, React, or Node projects.

5|Updated Jan 29, 2026
Search Tags:#vitest#testing#vite#fixtures#mocking#unit-tests#jest-compatible
One-click install
npx skills add https://github.com/ShenQingchuan/val.dokduk --skill vitest-shenqingchuan
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/ShenQingchuan/val.dokduk/tree/main/.agents/skills/vitest
Command: npx skills add https://github.com/ShenQingchuan/val.dokduk --skill vitest-shenqingchuan

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest provides a fast, Jest-compatible unit testing experience for modern web and Node projects powered by Vite. It reduces setup friction, offers instant feedback with hot module replacement-like test updates, and integrates smoothly with frameworks like Vue, React, and vanilla TypeScript/JavaScript.

Core Features & Use Cases

  • Jest-compatible API with Vitest-native config and plugins
  • Ultra-fast, Vite-powered test runner with isolated tests and rich reporting
  • Coverage, mocking, snapshots, and fixtures for robust test suites

Quick Start

Install Vitest as a dev dependency: npm i -D vitest

Add tests using the standard Vitest APIs and run with: npx vitest run

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I set up Jest-compatible unit tests for a Vite project?▼

Vitest provides a Jest-compatible unit testing experience for Vite projects by installing it as a dev dependency. You can write tests using standard Vitest APIs and execute them with the CLI command npx vitest run.

What is the best way to run unit tests with hot module replacement for instant feedback?▼

Vitest is an ultra-fast, Vite-powered test runner that offers instant feedback with hot module replacement-like test updates. It reduces setup friction and runs isolated tests with rich reporting.

Can I use Vitest for testing Vue, React, and vanilla TypeScript projects?▼

Yes, Vitest applies to modern frontend and backend projects using Vite, Vue, React, or Node. It integrates smoothly with these frameworks and supports vanilla TypeScript/JavaScript configurations.

How do I configure mocks, snapshots, and fixtures in Vitest?▼

Vitest supports robust test suites by providing built-in configuration for coverage, mocking, snapshots, and fixtures. These APIs satisfy requirements outlined in the official Vitest guides.

Does Vitest work with Node for backend unit testing?▼

Yes, Vitest supports modern backend projects using Node alongside frontend frameworks. It provides a fast, Jest-compatible unit testing experience powered by Vite for both environments.

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