为在Karma中执行完整页面重新加载的指令编写测试

Question

我想对一个指令进行单元测试,该指令将用户重定向到支持的社交login-url.

由于Karma不支持完整页面重新加载,我想改变location.href JavaScript对象的行为,将它接收的参数输出到具有特定ID的HTML元素,我很难做到这一点.

指示:

__app.directive('socialAuth', function(utils, authService, $location){
    return{
            restrict: 'A',
            scope: false,
            link: function(scope, elem, attrs){
                elem.bind('click', function(){
                            utils.cleanSocialSearch();
                            if(attrs.checkbox == 'personal'){
                              scope.$apply(function(){
                                scope.model.personalShare[attrs.network] = true;  
                                $location.search('personalShare', '1');
                              });
                            }
                            else if(attrs.checkbox == 'group'){
                              scope.$apply(function(){
                                var __index = attrs.checkbox + '_' + attrs.network;
                                scope.model.personalShare[__index] = true;  
                                $location.search('groupShare', '1');
                              });
                            }
                              var callback = encodeURIComponent(window.location.href);
                              var loginUrl = utils.getBaseUrl() + '/social/login/' + attrs.network + '?success_url=' + callback;
                              location.href = loginUrl;  

                        });
            }
    }

});

尝试模拟location.href对象进行测试(是的,我知道它不是函数):

var location = {//an attempt to mock the location href object
  href: function(param){
    $('#content').html(param);
  }
};

'use strict';
    describe('socail-auth', function(){//FB
      var scope, compiled, linkFn, html, elem, elemPersonal, elemGroups, compile, authService;
      html = "<span id='content' data-social-auth data-network='facebook'>";
      beforeEach(function(){
        module('myApp.directives');
        module('myApp.services');

    inject(function($compile, $rootScope){
      scope = $rootScope.$new();
      linkFn = $compile(angular.element(html));
      elem = linkFn(scope);
      scope.$digest();
      elem.scope().$apply()
    });
 })
    it("should redirect user to social login url at the backend", function(){
      // console.log(location.href);
      elem.click();
      console.log($(elem).html());
      expect($(elem).html()).toBeDefined();

    });

});

Answer 1

用$window.location.href而不是location.href.

然后$window.location用空对象模拟,它将完成这项工作.

describe('location', function() {
    var $window;

    beforeEach( module('myApp') );

    // You can copy/past this beforeEach
    beforeEach( module( function($provide) {

        $window = { 
            // now, $window.location.path will update that empty object
            location: {}, 
            // we keep the reference to window.document
            document: window.document
        };

        // We register our new $window instead of the old
        $provide.constant( '$window' , $window );
    }))


    // whatever you want to test
    it('should be redirected', function() {

        // action which reload the page
        $scope.reloadPage();

        // we can test if the new path is correct.
        expect( $window.location.path ).toBe('/the-url-expected');

    })
})