我无法使用angular.mock.module或angularAMD.value()正确注入模拟服务.

我有：

// service definition in services/MyService.js
define(['app'],function(app) {
           app.factory('myService',[ '$document',function($document) {
               function add(html) {
                   $document.find('body').append(html);
               }
               return { add: add }; 
           }]);
       }
);


// test
define(['angularAMD','angular-mocks','app','services/MyService'],function(aamd,mocks,app) {
           describe('MyService',function() {
               var myBodyMock = {
                   append: function() {}
               };
               var myDocumentMock = {
                   find: function(sel) {
                       // this never gets called 
                       console.log('selector: ' + sel);
                       return myBodyMock; 
                   }
               }; 
               var svc;
               beforeEach(function() {
                   // try standard way to mock a service through ng-mock
                   mocks.module(function($provide) {
                       $provide.value('$document',myDocumentMock);
                   });
                   // hedge my bets - try overriding in aamd as well as ng-mock
                   aamd.value('$document',myDocumentMock);              
               });
               beforeEach(function() { 
                   aamd.inject(['myService',function(myService) {
                                   svc = myService;
                               }]);
               });
               it('should work',function() {
                   // use svc expecting it to have injected mock of $document.
                   spyOn(myDocumentMock,'find').andCallThrough();
                   spyOn(myBodyMock,'append');
                   svc.add('<p></p>');
                   expect(myDocumentMock.find).toHaveBeenCalledWith('body');
                   expect(myBockMock.append).toHaveBeenCalledWith('<p></p>');
               });
           });
       }
);

有谁知道我哪里出错了？任何帮助将非常感激.