text: describe('image helper tests', function () {
      var umbImageHelper;
  
      beforeEach(module('umbraco.services'));
      beforeEach(module('umbraco.mocks'));
  
      beforeEach(inject(function ($injector) {
          umbImageHelper = $injector.get('imageHelper');
      }));
  
      describe('basic utility methods return correct values', function () {
  
          it('detects an image based file', function () {
  
              var image1 = "a-jpeg.jpg";
              var image2 = "a-png.png";
              var image3 = "thisisagif.blah.gif";
              var doc1 = "anormaldocument.doc";
              
              expect(umbImageHelper.detectIfImageByExtension(image1)).toBe(true);
              expect(umbImageHelper.detectIfImageByExtension(image2)).toBe(true);
              expect(umbImageHelper.detectIfImageByExtension(image3)).toBe(true);
              expect(umbImageHelper.detectIfImageByExtension(doc1)).toBe(false);
          });
          
      });
  });