Vitest

Vitest is a testing framework powered by Vite.

Even if your library is not using Vite, Vitest is an interesting option as it gives you a faster run for your unit tests and a jump in DX thanks to the default watch mode using Vite instant Hot Module Reload (HMR).

Vitest offers compatibility with most of the Jest API and ecosystem libraries, so in most projects, it should be a drop-in replacement for Jest.

Use cases

• Unit testing in TypeScript projects

Reference of usage in our organization

A list of repositories where Vitest is applied successful in a production environment:

https://github.com/search?q=org%3Apagopa+vitest%2Fconfig&type=code