GT2/GT2-iOS/node_modules/jest-expo
Ren Ren Juan 30eef7d036 correct tree err 2018-02-12 17:26:06 +00:00
..
src correct tree err 2018-02-12 17:26:06 +00:00
README.md correct tree err 2018-02-12 17:26:06 +00:00
jest-preset.json correct tree err 2018-02-12 17:26:06 +00:00
package.json correct tree err 2018-02-12 17:26:06 +00:00

README.md

jest-expo

A Jest preset to painlessly test your Expo apps.

If you have problems with the code in this repository, please file issues & bug reports at https://github.com/expo/expo. Thanks!

Installation

  • yarn add jest-expo --dev or npm i jest-expo --save-dev

  • Add the following config to package.json:

    "scripts": {
      "test": "node_modules/.bin/jest"
    },
    "jest": {
      "preset": "jest-expo"
    }
    
  • Create a __tests__ directory anywhere you like and a Example-test.js file inside of it, and add this code:

    it('works', () => {
      expect(1).toBe(1);
    });
    
  • Run npm test and it should pass

Learning Jest

Read the excellent documentation