vitest

Fast, JSDoc-based unit and MVP testing for your projects.

1|1|Updated Feb 2, 2026

Search Tags:#vitest #testing #unit testing #jest #vite #component testing

Ready to run

npx skills add https://github.com/Kurrawong/prez-lite --skill vitest-kurrawong

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/Kurrawong/prez-lite/tree/main/.claude/skills/vitest
Command: npx skills add https://github.com/Kurrawong/prez-lite --skill vitest-kurrawong

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a high-performance testing environment for Vite-based projects, streamlining the development process by enabling rapid unit and integration testing.

Core Features & Use Cases

Vite-Native Speed: Leverages Vite for extremely fast test execution.
Jest-Compatible API: Familiar syntax for developers transitioning from Jest.
Component Testing: Optimized for testing Vue, React, and Svelte components.
Mocking & Utilities: Comprehensive tools for mocking modules, spies, and advanced assertions.
Use Case: Quickly write and run unit tests for your Vue components, ensuring they render correctly and respond to user interactions as expected, all within your Vite development workflow.

Quick Start

Install Vitest as a development dependency in your Vite project.

Frequently Asked Questions about vitest

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

FAQPage Schema

How do I set up unit testing for a Vite project?▼

Vite-native unit testing uses Vitest to execute tests directly within your Vite build process, providing extremely fast execution and Jest-compatible syntax for Vue, React, and Svelte components.

Can I use a Jest-compatible API for component testing in Vite?▼

Yes, Vitest provides a Jest-compatible API for Vite component testing, allowing developers transitioning from Jest to write tests for Vue, React, and Svelte using familiar syntax and assertions.

Does Vitest support mocking modules and spies for unit tests?▼

Yes, Vitest supports comprehensive mocking capabilities including module mocking, spies, and advanced assertions, providing testing utilities for efficient test development within Vite projects.

What is the best way to run fast tests in a Vite build process?▼

The best way to achieve blazing fast test execution in a Vite build process is using Vitest, a Vite-native testing framework that leverages Vite's architecture for high-performance unit and integration testing.

How do I test Vue components within my Vite development workflow?▼

To test Vue components within your Vite development workflow, use Vitest's component testing capabilities to verify that components render correctly and respond to user interactions as expected.