# Jest Configurations Standard configurations for [Jest](https://facebook.github.io/jest/). **Why?** — We use Jest for unit-testing of critical code. Having a standard configuration and setup reused between our projects, helps a lot. For Jest configuration this package provides: - **`config/jest/default`** — The standard Jest config; - **`config/jest/setup`** — The standard Jest setup script. At the moment it just sets up [`raf/polyfill`](https://www.npmjs.com/package/raf), required by React.