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Vitest
🌟Open Source
testingViteJavaScript

Fast unit test framework powered by Vite, Jest-compatible API with native ESM, TypeScript, and HMR for instant test feedback.

Vitest is powered by Vite, providing instant hot module replacement for tests, Jest-compatible API, native ESM and TypeScript support, and built-in code coverage. Tests run in parallel by default with smart file-change detection for fast re-runs.

The modern test framework for Vite-based projects and beyond. Use it to write unit, integration, and component tests with instant feedback, run tests as part of CI pipelines with deterministic output, and migrate from Jest with minimal configuration changes.

URL

https://vitest.dev/

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