使用 $resource 时量角器超时等待与页面同步

问题描述

我正在用一个小型 AngularJS 应用程序测试 Protractor.

I'm testing Protractor with a small AngularJS app.

这是测试:

describe('Testing Protractor', function() {
  var draftList;

  it('should count the number of drafts', function() {
    browser.get('#/');
    draftList = element.all(by.repeater('newsletter in drafts'));
    expect(draftList.count()).toEqual(2);
  });
});

控制器:

angular.module('myApp.controllers', []).
  controller('DraftsCtrl', ['$scope', 'Draft', function($scope, Draft) {
    $scope.drafts = Draft.query();
}])

草稿服务:

angular.module('myApp.services', ['ngResource']).
  factory('Draft', ['$resource',
    function($resource) {
      return $resource('api/drafts/:id')
    }])

使用 Protractor 运行此测试会导致以下错误:

Running this test using Protractor results in the following error:

Error: Timed out waiting for Protractor to synchronize with the page after 11 seconds

但是，如果在控制器中我更改此行:

However, if in the controller I change this line:

$scope.drafts = Draft.query();

到这里:

$scope.drafts = [];

测试按预期失败，但更重要的是:它不会超时.

The test fails as expected, but more importantly: it does not time out.

启用 query() 后，无论是在浏览器中手动运行应用程序，还是查看 Protractor 打开的浏览器窗口时，API 返回的数据都会由中继器正确显示.

With query() enabled, both when running the app manually in a browser and when looking at the browser window opened by Protractor, the data returned by the API is correctly displayed by a repeater.

为什么服务与 API 通信时 Protractor 无法与页面同步?

Why is Protractor not able to synchronize with the page when the service is communicating with the API?

AngularJS 是 v1.2.0-rc3.量角器是 v0.12.0.

AngularJS is v1.2.0-rc3. Protractor is v0.12.0.

推荐答案

这是一个已知问题，但是有一个临时的解决方法.设置 ptor.ignoreSynchronization = true.

This is a known issue, but there is a temporary workaround. Set ptor.ignoreSynchronization = true.

例如:

describe('Testing Protractor', function() {
  var draftList;
  var ptor;

  beforeEach(function() {
    ptor = protractor.getInstance();
    ptor.ignoreSynchronization = true;
  });

  it('should count the number of drafts', function() {
    ptor.get('#/');
    draftList = element.all(by.repeater('newsletter in drafts'));
    expect(draftList.count()).toEqual(2);
  });
});

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