Global Typescript setup of jest-extended

This example demonstrates how to setup jest-extended globally with Typescript.

You will need to register jest-extended/all with Jest using the setupFilesAfterEnv field in your Jest config, see here: jest.config.js

module.exports = {
  setupFilesAfterEnv: ['jest-extended/all'],
};

To enable jest-extended globally in your Typescript project you will need to tell Typescript where to find the jest-extended type declarations.

To do this add a files property to your tsconfig.json with an entry of node_modules/jest-extended/types/index.d.ts, see here tsconfig.json