# Vitest - Used to be a [[facebook]] product, now open-js. - Based on [[jest]], which is again based on [[jasmine]]. - Meant to be used with [[vite]]. ## Usage - happy-DOM is faster than JSDOM - `render`, `renderHook` - `vitest-fetch-mock` - `waitFor` to test asynchronous functions ## Resources - [Testing React | Brian Holt](https://react-v8.holt.courses/lessons/testing/testing-react)