Sinon JS “Attempted to wrap ajax which is already wrapped”

Question

I got the above error message when I ran my test. Below is my code (I\'m using Backbone JS and Jasmine for testing). Does anyone know why this happens?

$(functio         


        

Answer 1

What you need in the very beginning is:

  before ->
    sandbox = sinon.sandbox.create()

  afterEach ->
    sandbox.restore()

Then call something like:

windowSpy = sandbox.spy windowService, 'scroll'

• Please notice that I use coffee script.