Testing React Native Apps

At Facebook, we use Jest to test React Native applications.

Get a deeper insight into testing a working React Native app example by reading the following series:

• Part 1: Jest – Snapshot come into play
• Part 2: Jest – Redux Snapshots for your Actions and Reducers.

Setup

Starting from react-native version 0.38, a Jest setup is included by default when running npx @react-native-community/cli init. The following configuration should be automatically added to your React Native's jest.config.js file:

module.exports = {
  preset: 'react-native',
};

Run