如何测试这个 angular 工厂

Question

我正在尝试使用量角器和 angular.mocks

测试工厂

这里是工厂：

angular.module('googlemarker', [])
  .factory('newMarker', newMarkerFactory);

  newMarkerFactory.$inject = ['$window']; 
  function newMarkerFactory($window) {


  function newMarker(markerOpts) {
    var position;
    if (markerOpts.geo) {
      position = new $window.google.maps.LatLng(
        markerOpts.geo.lat || markerOpts.geo.latitude, 
        markerOpts.geo.lng || markerOpts.geo.longitude
      );
    }
    var markerOptions = _.assign({
      position: markerOpts.position || position,
      icon: '/static/img/markers/pointer_basic.png'
    }, markerOpts);
    $window.google.maps.Marker.call(this, markerOptions);
  }
  /* this is for proper inheritance */
  function helperConstructor() {}
  helperConstructor.prototype = $window.google.maps.Marker.prototype;
  newMarker.prototype = new helperConstructor();
  newMarker.prototype.constructor = newMarker;

  return newMarker;
}

然后我有这个测试：

(function() {
  fdescribe('googlemarker tests', function () {
    'use strict';

    var _google = {
        maps: {
        Marker: function (markerOpitons) {
          this.position = markerOpitons.position;
        },
        LatLng: function (lat, lng) {
          this._lat = lat;
          this._lng = lng;
        }
      }
    };

    _google.maps.LatLng.prototype.lat = function() { return this._lat; };
    _google.maps.LatLng.prototype.lng = function() { return this._lng; };

    beforeEach(module('googlemarker'));

    beforeEach(module(function($provide) {
      $provide.service('$window', function() { this.google = google; });
    }));

    it("googlemarker transform geo in google.maps.LatLng", inject(function (newMarker) {
      var opts = {
        geo: {
          latitude: 2,
          longitude: 2
        }
      };
      var marker = new newMarker(opts);
      expect(marker.position.lat()).toEqual(opts.geo.latitude);
    }));
  });
})();

但是这不起作用，它说我在线未定义： "function newMarker" 说那是未定义的。有人可以帮助我吗？

Answer 1

有人杀了我：我在这一行犯了一个错误：

$provide.service('$window', function() { this.google = google; });

下划线应该是我之前定义的变量

var _google = ...

这一行应该是这样的：

$provide.service('$window', function() { this.google = _google; });

如何测试这个 angular 工厂

How to test this angular factory

angularjs

protractor

karma-jasmine