driving through e2e

integration/SingleScreen.test.js

-describe('single screen integration', () => {
-  let Navigation;
-  let mockNativeNavigation;
-
-  beforeEach(() => {
-    mockNativeNavigation = {};
-    require('react-native').NativeModules.NativeNavigation = mockNativeNavigation;
-    Navigation = require('../../src/index').default;
-  });
-
-  xit('startApp directs to native with constructed hirarchy for single screens', () => {
-    mockNativeNavigation.startApp = jest.fn();
-    Navigation.startApp({
-      root: {
-        key: 'com.integration.MyFirstScreen'
-      }
-    });
-    expect(mockNativeNavigation.startApp).toHaveBeenCalledTimes(1);
-  });
-});

src/Navigation.js

 import * as ContainerRegistry from './containers/ContainerRegistry';
+import {NativeModules} from 'react-native';
+const {NativeNavigation} = NativeModules;
 
 export function registerContainer(containerKey, getContainerFunc) {
   ContainerRegistry.registerContainer(containerKey, getContainerFunc);
 }
 
 export function startApp(params) {
-  //
+  NativeNavigation.startApp(params);
 }
 
 export function push(params) {