protractor e2e test for angular html5 drag and drop

As many of you know HTML5 drag and drop testing is not supported by protractor tests in Angularjs.

I got this drag-drop-helper.js on the net to simulate this drag and drop functionality. But when I tried to use it in my test spec by importing as node module

var dragdrop = require('./drag-drop-helper.js');

Getting error saying "jquery not found" How to solve this issue?