774 B

Raw Blame History

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