javascript - 模拟服务时 Jasmine 出现问题

Question

我有一个如下所示的 Controller

(function () {

    var mockController = function ($scope, MockService) {
        $scope.message = "This is a text message";
        $scope.getCities = function () {
            return MockService.getCities();
        };

    };


    var mockService = function ($http) {
        this.getCities = function () {
            return $http.get("../rest/url", {
                headers: {
                    'Accept': 'application/yang.data+json'
                }
            });
        };
    };

    angular.module("MockApp", [])
        .service("MockService", mockService)
        .controller("MockController", mockController);

}())

我正在尝试编写一个 UT 来模拟如下服务

describe("MockController", function () {

    var $scope;

    beforeEach(function () {
        module("MockApp");
        inject(function (_$controller_, _$rootScope_, MockService) {
            $scope = _$rootScope_.$new();
            spyOn(MockService, "getCities").and.callFake(function () {
                return [{
                    city: "Bangalore"
                    , country: "India"
                }];
            });
            controller = _$controller_("MockController", {
                $scope: $scope
            });

        });
    });

    describe("Test", function () {

        it("Should be Bangalore", function () {
            $scope.getCities()
                .then(function (data) {
                    console.log("got it");
                })
        });
    });

});

它抛出一个错误说

类型错误:$scope.getCities(...).then 不是一个函数

请帮助我。

Answer 1

我认为:

$scope.getCities = function () {
  return MockService.getCities();
};

应该是:

$scope.getCities = function () {
  return MockService(getCities());
};