Can't test method with resolved promise in angular/jasmine

I am trying to test an asynchronous method in angular. Here is code from my controller:

if $routeParams.mode == "new"
  # some stuff
  mySvc.GetMyStuff $routeParams.id
  .then (stuff) ->
    if stuff? and stuff.length > 1
      # do more stuff
    else 
      $scope.stuff = 'foo'

And my test:

describe "test stuff",
  $q = {}
  $scope = {}
  controller = {}
  mySvc = {}

  beforeEach inject (_$controller_, _$rootScope_, _$q_, _$routeParams_, _mySvc_)
     # init stuff
     # create a promise to be resolved
     d = $q.defer()
     d.resolve 'foo'  # resolving with an empty array to test 'no results' condition
     spyOn(mySvc,'GetMyStuff').and.returnValue d.promise


  # later
    it "should set stuff to an 'foo'", () ->
      mySvc.GetMyStuff "id"
      $scope.$apply()
      expect($scope.stuff).toBe 'foo'   # Expected undefined to be 'foo'

I've also tried calling $scope.$apply() from the beforeEach block, and tried the expectation with simple strings instead of an empty array. I am expecting the data returned by the asynchronous operation to equal an empty array, which should trigger the condition that sets $stuff to 'foo'. It doesn't seem that .then is being called with my resolved value.