Js-fiddle test ruby with emberjs and handlebars

Ive seen small examples like this one: http://ift.tt/1JxXgTu

but I think mine requires something better.

I have a rails app which uses ember to communicate with it. If I'm not wrong, if I wanted to show a demo on websites like js fiddle and JSbin for certain parts of the app, I would need to create or upload multiple files together, on mos to these I can't do that. Nevertheless, I cant seem to test my pieces of code because the piece of code I want to test interacts or replies on multiple files such as .js from its controllers and also .jses6 extensions all mixed with .hbs extentions. So how would I go about testing many files. I think I tried plunker which allows multiple files but I dont think its compatible with ember js or handlebars.