Create an "uninitialized" object in your jasmine specs

spec_helper.coffee

global.newUninitialized = (klass) ->
  createInstanceOfKlass = (() ->
    F = (args) ->
      klass.apply(this, args)

    F.prototype = klass.prototype

    () ->
      new F(arguments);
  )()
  args = []
  Array.prototype.push.apply(args, arguments)
  args.shift()
  originalInitialize         = klass.prototype.initialize
  klass.prototype.initialize = () ->
  instance                   = createInstanceOfKlass.apply(this, args)
  klass.prototype.initialize = originalInitialize
  instance