add screen and score screen render tests

squarenotsquare/__tests__/App-test.js

@@ -11,6 +11,8 @@ import HighScore from '../src/screens/HighScore';
 import Home from '../src/screens/Home';
 import Splash from '../src/screens/Splash';
 import NineKey from '../src/components/NineKey';
+import AdditionGame from '../src/screens/AdditionGame';
+import Score from '../src/screens/Score';
 import ScrollingPicker from '../src/components/ScrollingPicker';
 
 it('renders square stack', () => {
@@ -26,6 +28,14 @@ it('renders game component', () => {
     </Provider>);
 });
 
+it('renders addition game component', () => {
+  const mockStore = ConfigStore;
+  renderer.create(
+    <Provider store={mockStore}>
+      <AdditionGame/>
+    </Provider>);
+});
+
 it('renders highscore component', () => {
   const mockStore = ConfigStore;
   renderer.create(
@@ -44,6 +54,14 @@ it('renders home component', () => {
   );
 });
 
+it ('renders score component', () => {
+  const mockStore = ConfigStore;
+  renderer.create(
+    <Provider store={mockStore}>
+      <Score/>
+    </Provider>);
+})
+
 it('renders splash component', () => {
   renderer.create(<Splash />);
 });