setupJest.ts

(global as any).isJestRunning = true;

const mockRnCodePush = () => Component => Component;
Object.assign(mockRnCodePush, {
  CheckFrequency: 0,
});

jest.mock('react-native-code-push', () => mockRnCodePush);

jest.mock('react-native-splash-screen', () => {
  return {
    hide: jest.fn(),
    show: jest.fn(),
  };
});

jest.mock('react-native-device-info', () => {
  return {
    getDeviceLocale: () => 'en',
    getModel: () => 'iPhone SE',
  };
});

jest.mock('./package.json', () => ({
  version: '1.0.0',
}));

// Setup react 16 adapter for enzyme
import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
// @ts-ignore
Enzyme.configure({adapter: new Adapter()});

// Mock TouchableNativeFeedback
import {TouchableNativeFeedback} from 'react-native';
TouchableNativeFeedback.SelectableBackground = jest.fn();

// Feb 14, 2017
Date.now = jest.fn(() => 1487076708000);

Math.random = () => 1;