$controller is not a function in Angular/Jasmine

I am pulling my hair out with testing Angular. I am trying to instantiate a controller and jasmine complains that $controller is not a function. Below is my test.

describe "MyCtrl test", () ->
  beforeEach module('ngRoute')
  beforeEach module('myControllers')

  $controller = undefined
  $scope = undefined
  $routeParams = undefined
  mySvc = undefined

  beforeEach inject (_$controller_, $rootScope, _$routeParams_,_mySvc_) ->
    $controller = _$controller_
    $scope = $rootScope.$new()
    mySvc = _mySvc_

  describe "MyCtrl", () ->
    beforeEach () ->
      MyCtrl = $controller('MyCtrl', {$scope:$scope,$routeParams:$routeParams,mySvc:mySvc})
    it "should be defined", () ->
      expect(MyCtrl).toBeDefined()

I have defined $controller at the top level scope, I have injected the controller service and assigned it to the global variable. How is it not a function?