在angluarJS中，browser()对象定义在哪里？

Question

遵循Angular-phonecat教程，在scenario.js中的step-7使用了browser()和binding()对象，但是，当我尝试使用它们来测试我的应用程序时，运行testacular时说：

ReferenceError: browser is not defined
        at null.<anonymous> 

Intellij Ideal还说:未解析的函数或方法browser()。这里我漏掉了什么？

下面是本教程中的代码片段：“use strict”；

/* http://docs.angularjs.org/guide/dev_guide.e2e-testing */

describe('PhoneCat App', function() {

  it('should redirect index.html to index.html#/phones', function() {
    browser().navigateTo('../../app/index.html');
    expect(browser().location().url()).toBe('/phones');
  });


  describe('Phone list view', function() {

    beforeEach(function() {
      browser().navigateTo('../../app/index.html#/phones'); //<---  browser() object is not defined !!! 
    });


    it('should filter the phone list as user types into the search box', function() {
      expect(repeater('.phones li').count()).toBe(20);

      input('query').enter('nexus');
      expect(repeater('.phones li').count()).toBe(1);

      input('query').enter('motorola');
      expect(repeater('.phones li').count()).toBe(8);
    });


    it('should be possible to control phone order via the drop down select box', function() {
      input('query').enter('tablet'); //let's narrow the dataset to make the test assertions shorter

      expect(repeater('.phones li', 'Phone List').column('phone.name')).
          toEqual(["Motorola XOOM\u2122 with Wi-Fi",
                   "MOTOROLA XOOM\u2122"]);

      select('orderProp').option('Alphabetical');

      expect(repeater('.phones li', 'Phone List').column('phone.name')).
          toEqual(["MOTOROLA XOOM\u2122",
                   "Motorola XOOM\u2122 with Wi-Fi"]);
    });


    it('should render phone specific links', function() {
      input('query').enter('nexus');
      element('.phones li a').click();
      expect(browser().location().url()).toBe('/phones/nexus-s');
    });
  });


  describe('Phone detail view', function() {

    beforeEach(function() {
      browser().navigateTo('../../app/index.html#/phones/nexus-s');
    });


    it('should display placeholder page with phoneId', function() {
      expect(binding('phoneId')).toBe('nexus-s');
    });
  });
});

Answer 1

它在angular-scenario.js中定义

Answer 2

//Spec文件

'use strict';
describe('demoApp', function() {
it('should redirect node_list.html to node_list.html#/menu', function() {
browser().navigateTo('/node_list.html');
expect(browser().location().url()).toBe('/menu');
  });

describe('menu_view', function() {
beforeEach(function() {
  browser().navigateTo('/node_list.html#/menu'); 
});
});
});

Error:
Chrome 39.0.2171 (Linux) demoApp should redirect node_list.html to node_list.html#/menu FAILED
ReferenceError: browser is not defined at Object.<anonymous> (/test/viewpage.js:5:5)