AngularJS Jasmine測試：TypeError：“未定義”不是對象

Question

Angular的新手 ，以及我先前從angularjs茉莉花測試發布的后續文章：找不到變量vm我的角度測試中遇到TypeError，不確定是什么問題。 這是我的測試：

(function(){
'use strict';
describe('Testing DeliveriesController', function() {

    beforeEach(module('app.deliveries'));

    describe('Testing deliveries controller', function(){
        var vm, controller;

        beforeEach(inject(function($controller, $rootScope){
            vm = $rootScope.$new();
            controller = $controller('DeliveriesController', {$scope:vm});
        }));

        afterEach(function() {
            vm = undefined;
            controller = undefined;
        });

        describe('priorities length', function(){
            it('it should test priority length', function () {
                expect(vm.priorities.length).toBe(0);
            });
        });
    });

  });

})();

我得到的錯誤如下：

PhantomJS 1.9.8 (Mac OS X 0.0.0) Testing DeliveriesController Testing deliveries controller priorities length it should test priority length FAILED
Error: [$injector:unpr] Unknown provider: DeliveriesServiceProvider <- DeliveriesService <- DeliveriesController
http://errors.angularjs.org/1.3.20/$injector/unpr?p0=DeliveriesServiceProvider%20%3C-%20DeliveriesService%20%3C-%20DeliveriesController
    at /Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4031
    at getService (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4178)
    at /Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4036
    at getService (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4178)
    at invoke (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4210)
    at instantiate (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4227)
    at /Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:8524
    at /Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular-mocks/angular-mocks.js:1916
    at /Users/rgoti/ingestion/external-ingestion/app/public/src/app/deliveries/deliveries.spec.js:12
    at invoke (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular/angular.js:4219)
    at workFn (/Users/rgoti/ingestion/external-ingestion/app/public/bower_components/angular-mocks/angular-mocks.js:2475)
undefined
TypeError: 'undefined' is not an object (evaluating 'vm.priorities.length')
    at /Users/rgoti/ingestion/external-ingestion/app/public/src/app/deliveries/deliveries.spec.js:23

Answer 1

禮貌：@StubbbOrn發表評論：

您能顯示控制器的代碼嗎？ 這將有助於更好地理解問題。 看起來DeliveriesController不僅取決於$ scope，而且取決於DeliveriesService。 實例化控制器時，應提供所有依賴項（真實的或模擬的）。

這個解決方案對我有用，就是解決方案。 謝謝@StubbOrn

Answer 2

看起來您正在控制器中使用DeliveriesService 。

無論何時使用服務，都需要確保注入該服務或使用$ provider添加它。

beforeEach(inject(function($controller, $rootScope, _DeliveriesService_){
            vm = $rootScope.$new();
            DeliveriesSrvc = _DeliveriesService_;
            controller = $controller('DeliveriesController', {$scope:vm});
        }));

要么

beforeEach(module(function ($provide) {
     mockObj = {
        functionName: jasmine.createSpy('functionName')
     }
     $provide.value('DeliveriesService',mockObj)
}));