我正在尝试测试AngularJS服务carService,但$httpBackend似乎不起作用.
//carService angular.module('services').factory('carService',function($http) { return { getTypes: function() { return $http.get('/api/cars/types'); } }; });
任何人都可以解释为什么响应为空?
describe("Services",function () { beforeEach(module("app.services")); describe("Car services",function () { var service,$httpBackend; beforeEach(inject(function($injector) { service = $injector.get('carService'); $httpBackend = $injector.get('$httpBackend'); $httpBackend.when('GET',"/api/cars/types").respond(["Toyota","Honda","Tesla"]); })); afterEach(function() { $httpBackend.verifyNoOutstandingExpectation(); $httpBackend.verifyNoOutstandingRequest(); }); it('getTypes - should return 3 car manufacturers',function () { service.getTypes().then(function(response) { expect(response.length).toEqual(3); //the response is null }); $httpBackend.flush(); }); }); });