Out-of-box ESM, TypeScript and JSX support powered by esbuild. Vitest is free and open source, made possible by wonderful sponsors. Released under the MIT License.

Vite 's config, transformers, resolvers, and plugins. Use the same setup from your app! Smart & instant watch mode, like HMR for tests! Native code coverage via v8 or istanbul. Tinyspy built …

Feb 25, 2025 · Learn how to use Vitest, a fast JavaScript testing framework. This guide covers project setup, writing tests, filtering, mocking, hooks, code coverage, and the Vitest UI.

Dec 8, 2024 · Vitest is a compelling choice for modern testing, offering speed, simplicity, and rich features powered by Vite. Whether migrating from Jest or starting fresh, Vitest provides an …

Mar 25, 2025 · Enter Vitest—a testing framework designed to work harmoniously with Vite-built applications. In this article, we’ll explore how to set up and use Vitest with React Testing …

Vitest (pronounced as "veetest") is a next generation testing framework powered by Vite. You can learn more about the rationale behind the project in the Why Vitest section. You can try Vitest …

A comprehensive guide to Vitest testing framework, covering its core features, capabilities and practical examples for unit and component testing

Next generation testing framework powered by Vite.

1 day ago · Vitest and Playwright often get compared, but they solve completely different testing needs. One is built for fast unit testing, the other for full browser automation. Key Differences: …

To configure vitest itself, add test property in your Vite config. You'll also need to add a reference to Vitest types using a triple slash command at the top of your config file, if you are importing …