无法在jasmine测试中访问leafletData对象

时间:2014-10-27 08:38:46

标签: angularjs jasmine leaflet

我们正在使用带有传单的angularjs来显示地图。与此同时,我们使用茉莉(1.3.1.5)+ maven进行测试。在编写的规范中,我们无法访问leafletData对象。控制器是这样的:

  angular.module('TestProject').controller('TestCtrl', ['$scope', 'leafletData',       
         function TestCtrl($scope, leafletData){
         'use strict';
          $scope.map;
          leafletData.getMap().then(function(map) {
                var southWest = L.latLng(-90, -180),
                northEast = L.latLng(90, 180),
                bounds = L.latLngBounds(southWest, northEast);
                mapObj.setMaxBounds(bounds);
                mapObj.options.maxZoom = 19;
                mapObj.options.minZoom = 1;
                $scope.map=map;
                $scope.featureGroup = L.featureGroup().addTo($scope.map);
      });
  }]);

控制器的规格是:

   describe("test controller",function() {
        var scope,leafletData, compile;

        beforeEach(module("TestProject"));

        beforeEach(inject(function($controller, $rootScope, $compile, leafletData) {
            scope = $rootScope.$new();
            compile = $compile;

            $controller('TestCtrl', {
                '$scope' : scope,
                'leafletData' : leafletData
            });
        }));

        it("test function", function() {
            var element = angular.element('<leaflet></leaflet>');
            element = compile(element)(scope);
            expect(leafletData).toBeDefined();
            leafletData.getMap().then(function(map) {
                scope.map = map;
            });
            $rootScope.$digest();
            expect(scope.map.getZoom()).toEqual(1);
            expect(scope.map.getCenter().lat).toEqual(0);
            expect(scope.map.getCenter().lng).toEqual(0);
        });

  });

我们得到的错误是:

1。)测试控制器测试功能&lt;&lt;&lt;失败!    *预期未定义定义。    * TypeError:'undefined'不是spec / controllers / testCtrlSpec.js中的对象(评估'leafletData.getMap')(第22行)

我们已经在angular-leaflet-directive中专门导入了所有js文件,但它似乎不起作用。我们还感觉这可能是角度模块名称差异的问题,我们尝试使用beforeEach(模块(“TestProject”,“leaflet-directive”));但这也没有解决我们的问题。

请帮助我们!!

1 个答案:

答案 0 :(得分:2)

leafletData未定义,因为它在测试的顶部声明,但从未为其分配值。这是将注射剂引入测试时应遵循的一般模式:

describe("test controller",function() {
    var leafletData;

    beforeEach(module("TestProject"));

    beforeEach(inject(function(_leafletData_) {
        // without this, leafletData will be undefined
        leafletData = _leafletData_;
    }));

    it("should be defined", function() {
        expect(leafletData).toBeDefined();
    });
});

此外,在进行任何单元测试时,应该单独测试被测代码。应该嘲笑它依赖的任何服务(在这种情况下是leafletData)和来自这些服务的响应。例如:

describe("test controller",function() {
    var $q;
    var scope;
    var leafletData;

    var mockMapData = {
        // ...
        // some mock map data
        // ...
    };

    beforeEach(module("TestProject"));

    beforeEach(inject(function(_$controller_, _$rootScope_, _$q_, _leafletData_) {
        scope = _$rootScope_.$new();
        $q = _$q_;
        leafletData = _leafletData_;

        // mock the leafletData
        spyOn(leafletData, 'getMap').andReturn($q.when(mockMapData));

        _$controller_('TestCtrl', {
            '$scope' : scope
        });
    }));

    it("test function", function() {
        scope.$digest();
        expect(scope.map).toEqual(mockMapData);
    });
});;