vitest

Run Jest-compatible unit tests in Vite projects with native ESM support.

Updated Dec 8, 2025
One-click install
npx skills add https://github.com/sduduzog/.dotfiles --skill vitest-sduduzog
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/sduduzog/.dotfiles/tree/main/agents/skills/vitest
Command: npx skills add https://github.com/sduduzog/.dotfiles --skill vitest-sduduzog

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest enables fast, reliable unit testing for Vitest-based projects using a Jest-compatible API and native ESM, delivering seamless integration with Vite.

Core Features & Use Cases

  • Jest-compatible API with Vite-native performance for rapid feedback during development
  • Built-in coverage, snapshots, mocking, and fixtures for reliable test suites
  • Watch mode, multi-project setups, and TypeScript/JSX support

Quick Start

Install Vitest in your project and start running tests to see instant, fast feedback.

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I run Vite unit tests with a Jest-compatible API?

Vitest provides a Jest-compatible API for Vite unit tests, leveraging native ESM support to deliver fast, reliable feedback during frontend and backend development.

Does Vitest support TypeScript and JSX out of the box?

Yes, Vitest supports TypeScript and JSX out of the box. It also includes built-in coverage, snapshots, mocking, and fixtures for managing reliable test suites in modern workflows.

What's the best way to configure coverage and mocking in Vite-based projects?

The best way to configure coverage and mocking in Vite-based projects is using Vitest, which offers built-in coverage tools, mocking capabilities, and fixtures for reliable test suite management.

Can I use multi-project setups and watch mode with Vitest?

Yes, you can use multi-project setups and watch mode with Vitest. These features allow rapid feedback and seamless integration across various Vite-native frontend and backend workflows.

Why should I choose Vitest over other testing frameworks for Vite projects?

You should choose Vitest over other testing frameworks for Vite projects because it uses Vite-native performance, provides a Jest-compatible API, and ensures seamless integration with native ESM support.