Adding jest tests to groups rn

Libraries/BatchedBridge/BatchedBridgedModules/__mocks__/NativeModules.js

@@ -30,6 +30,12 @@ var NativeModules = {
     customBubblingEventTypes: {},
     customDirectEventTypes: {},
     Dimensions: {},
+    RCTModalFullscreenView: {
+      Constants: {},
+    },
+    RCTScrollView: {
+      Constants: {},
+    },
   },
   AsyncLocalStorage: {
     getItem: jest.genMockFunction(),
@@ -44,6 +50,13 @@ var NativeModules = {
     appVersion: '0',
     buildVersion: '0',
   },
+  ModalFullscreenViewManager: {},
+  AlertManager: {
+    alertWithArgs: jest.genMockFunction(),
+  },
+  Pasteboard: {
+    setPasteboardString: jest.genMockFunction(),
+  },
 };
 
 module.exports = NativeModules;