vitest

Run Vitest unit tests for Vite-based projects with TypeScript and coverage.

1|Updated Nov 1, 2025

Search Tags:#typescript #vitest #testing #vite #coverage #mocking #jest-compatible

Ready to run

npx skills add https://github.com/carlosalberto05/perritos-refugio-frontend --skill vitest-carlosalberto05

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/carlosalberto05/perritos-refugio-frontend/tree/main/.agents/skills/vitest
Command: npx skills add https://github.com/carlosalberto05/perritos-refugio-frontend --skill vitest-carlosalberto05

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest provides fast, developer-friendly unit testing for Vite-based projects, enabling quick feedback during development.

Core Features & Use Cases

Vite-native testing pipeline that integrates with Vite apps.
Jest-compatible API for easy migration and familiar tooling.
TypeScript and JSX support out of the box, with snapshot and coverage tooling.

Quick Start

Install Vitest in your project and run tests with 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 unit testing for a Vite-based project with TypeScript?▼

Unit testing for a Vite-based project uses Vitest, a Vite-native pipeline that supports TypeScript and JSX out of the box. You can install Vitest in your project and run tests immediately to get fast developer feedback.

Can I migrate my Jest-compatible tests to Vite without changing my code?▼

Migrating Jest-compatible tests to Vite is straightforward because Vitest provides a Jest-compatible API. This familiar tooling allows you to transition your existing test suites into the Vite pipeline without rewriting your test logic.

How do I configure mocking and code coverage in a Vite testing pipeline?▼

Configuring mocking and coverage in a Vite testing pipeline is handled through Vitest's configuration options. Vitest supports built-in mocking, coverage tooling, and snapshots, enabling comprehensive test isolation and validation for modern frontend apps.

Does Vitest support filtering tests and running them concurrently?▼

Vitest supports filtering tests and running them concurrently to ensure blazing-fast execution. These features are configured through Vitest's native configuration, allowing developers to optimize test runs during development.

What is the best way to run fast unit tests in a modern frontend app?▼

The best way to run fast unit tests in a modern frontend app is using Vitest, a Vite-native testing framework. It solves the need for quick developer feedback by integrating directly with Vite and supporting TypeScript and JSX out of the box.