One-click install
npx skills add https://github.com/tyler-dot-earth/.dotfiles --skill vitest-tyler-dot-earth
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/tyler-dot-earth/.dotfiles/tree/main/agents/skills/vitest
Command: npx skills add https://github.com/tyler-dot-earth/.dotfiles --skill vitest-tyler-dot-earth

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest speeds up development by providing a fast, Jest-compatible testing experience for JavaScript/TypeScript projects, running tests through Vite's pipeline for rapid feedback.

Core Features & Use Cases

  • Fast local test execution aligned with Vite
  • Jest-compatible API for familiar test patterns, mocks, and assertions
  • Built-in coverage, watch mode, snapshots, and fixtures for scalable testing

Quick Start

Run the Vitest CLI to execute tests and see immediate results by creating a test file with a few tests.

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I run fast unit tests in a Vite-powered TypeScript project?

Vitest runs fast unit tests in a Vite-powered TypeScript project by executing test files through Vite's pipeline. It provides native ESM support and immediate feedback during development using watch mode.

Can I migrate my Jest-compatible mocks and assertions to a Vite testing workflow?

You can migrate Jest-compatible mocks and assertions to a Vite testing workflow because Vitest provides a familiar Jest-compatible API. This allows you to use existing test patterns, mocks, and assertions without changing your test structure.

Does Vitest support snapshot testing and code coverage out of the box?

Vitest supports snapshot testing and code coverage out of the box. It includes built-in coverage reporting, snapshot testing, test filtering, and fixtures to provide a scalable testing experience within your Vite workflow.

Why use Vitest instead of other Jest-compatible testing frameworks for ESM modules?

Use Vitest instead of other Jest-compatible testing frameworks for ESM modules to achieve faster local test execution. It natively supports ESM and TypeScript by running tests directly through the Vite pipeline, reducing configuration overhead.

What is the best way to speed up test execution for JavaScript unit tests?

The best way to speed up test execution for JavaScript unit tests is using Vitest. It accelerates unit testing by running tests through Vite's pipeline, offering fast watch-mode operation and rapid feedback for development.