testing

src2/containers/ContainerRegistry.test.js

 import {AppRegistry, Text} from 'react-native';
 import React, {Component} from 'react';
 import renderer from 'react-test-renderer';
+import * as PropStore from './PropsStore';
 
 class MyContainer extends Component {
   render() {
         renderer.create(<NavigationContainer/>);
       }).toThrow(new Error('Screen example.MyContainer.key does not have a screenId!'));
     });
+
+    it('pulls props from the PropsStore and injects them into the inner container', () => {
+      const props = {myProp: 1, otherProp: 'hello', yetAnotherProp: {a: 2}};
+      PropStore.setPropsForScreenId('my_screen_1', props);
+      // TODO
+    });
   });
 });

src2/containers/ContainerStore.js

+const state = {
+  containersByKey: {}
+};
 
+export function saveContainerClass(containerKey, containerClass) {
+  state.containersByKey[containerKey] = containerClass;
+}
+
+export function getContainerClass(containerKey) {
+  return state.containersByKey[containerKey];
+}

src2/containers/ContainerStore.test.js

 describe('ContainerStore', () => {
-  it('holds containers', () => {
+  let uut;
+
+  beforeEach(() => {
+    uut = require('./ContainerStore');
+  });
+
+  class Component {
+    //
+  }
+  class MyComponent extends Component {
     //
+  }
+
+  it('holds containers classes by containerKey', () => {
+    uut.saveContainerClass('example.mykey', MyComponent);
+    expect(uut.getContainerClass('example.mykey')).toEqual(MyComponent);
   });
 });

yarn.lock

     node-int64 "^0.4.0"
 
 buffer-crc32@~0.2.3:
-  version "0.2.6"
-  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.6.tgz#612b318074fc6c4c30504b297247a1f91641253b"
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
 
 buffer-shims@^1.0.0:
   version "1.0.0"
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/dom-walk/-/dom-walk-0.1.1.tgz#672226dc74c8f799ad35307df936aba11acd6018"
 
-domelementtype@1, domelementtype@~1.1.1:
+domelementtype@1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
+
+domelementtype@~1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
 
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-iconv-lite@0.4.11:
+iconv-lite@0.4.11, iconv-lite@^0.4.5:
   version "0.4.11"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.11.tgz#2ecb42fd294744922209a2e7c404dac8793d8ade"
 
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
 
-iconv-lite@^0.4.13, iconv-lite@^0.4.5, iconv-lite@~0.4.13:
-  version "0.4.14"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.14.tgz#0c4b78106835ecce149ffc7f1b588a9f23bf28e3"
+iconv-lite@^0.4.13, iconv-lite@~0.4.13:
+  version "0.4.15"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
 
 ignore@^3.2.0:
   version "3.2.0"
     xtend "^4.0.0"
 
 moment@2.x.x:
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.16.0.tgz#f38f2c97c9889b0ee18fc6cc392e1e443ad2da8e"
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.17.0.tgz#a4c292e02aac5ddefb29a6eed24f51938dd3b74f"
 
 morgan@~1.6.1:
   version "1.6.1"
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^2.0.0, "readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@~2.0.0, readable-stream@~2.0.5:
+readable-stream@^2.0.0, "readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@~2.0.0, readable-stream@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
   dependencies:
     string_decoder "~0.10.x"
     util-deprecate "~1.0.1"
 
-readable-stream@^2.0.1, readable-stream@~2.1.4:
+readable-stream@~2.1.4:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.1.5.tgz#66fa8b720e1438b364681f2ad1a63c618448c9d0"
   dependencies: