ensure helper classes and constants are exposed globally

spec/javascripts/boards/mock_data.js.es6

@@ -56,3 +56,8 @@ const boardsMockInterceptor = (request, next) => {
     status: 200
   }));
 };
+
+window.listObj = listObj;
+window.listObjDuplicate = listObjDuplicate;
+window.BoardsMockData = BoardsMockData;
+window.boardsMockInterceptor = boardsMockInterceptor;

spec/javascripts/environments/mock_data.js.es6

-/* eslint-disable no-unused-vars */
+
 const environmentsList = [
   {
     id: 31,
@@ -134,6 +134,8 @@ const environmentsList = [
   },
 ];
+window.environmentsList = environmentsList;
+
 const environment = {
   id: 4,
   name: 'production',
@@ -147,3 +149,5 @@ const environment = {
   created_at: '2016-12-16T11:51:04.690Z',
   updated_at: '2016-12-16T12:04:51.133Z',
 };
+
+window.environment = environment;

spec/javascripts/helpers/class_spec_helper.js.es6

-/* eslint-disable no-unused-vars */
-
 class ClassSpecHelper {
   static itShouldBeAStaticMethod(base, method) {
     return it('should be a static method', () => {
@@ -7,3 +5,5 @@ class ClassSpecHelper {
     });
   }
 }
+
+window.ClassSpecHelper = ClassSpecHelper;