ルータが角2のコンストラクタに注入されたトラブルユニットテストサービス

Question

私は、アプリケーションルータがそのコンストラクタに注入されているサービスをテストしようとしています。 AngularConnect conf 2015（および彼女のリポジトリ：https://github.com/juliemr/ng2-test-seed）で示されたJulie Ralphの提案に続いて、 私はカルマとジャスミンを使用しています。それは、例えば、サービステストされるべき次の

：今

import { Router } from 'angular2/router'; 

export class ExampleService { 
    constructor(router : Router) { 
    this._router = router; 
    } 

    //... 
} 

を、私は真実を主張しています。ルータを見てみると、ヌル

のプロパティ「長さ」を読み込めません：

import { it, describe, expect, inject, beforeEachProviders, MockApplicationRef } from 'angular2/testing'; 
import { ROUTER_PROVIDERS } from 'angular2/router'; 
import { provide, ApplicationRef } from 'angular2/core'; 

import { ExampleService } from 'example-service.js'; 

describe('ExampleService',() => { 
    beforeEachProviders(() => [ 
    ROUTER_PROVIDERS, ExampleService, 
    provide(ApplicationRef, { useClass: MockApplicationRef }) 
    ]); 

    it('should validate the truth', inject([ExampleService], (exService) => { 
    expect(true).toBeTruthy(); 
    })); 
}); 

は、私がテストを実行します（>カルマkarma.config.jsを開始する）、私はTypeError例外を取得：それはサービスのテストを以下の.jsソースコードは、ルータを注入する前に少なくとも1つのコンポーネントをブートストラップする必要があるようです。 ルータの依存関係をテストに簡単に注入する方法はありますか？

スタックトレース：解決

ORIGINAL EXCEPTION: TypeError: Cannot read property 'length' of null ORIGINAL STACKTRACE: TypeError: Cannot read property 'length' of null at routerPrimaryComponentFactory (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/router.js:2963:27) at Injector._instantiate (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11920:19) at Injector._instantiateProvider (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11859:21) at Injector._new (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11849:19) at InjectorDynamicStrategy.getObjByKeyId (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11733:42) at Injector._getByKeyDefault (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12048:33) at Injector._getByKey (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12002:21) at Injector._getByDependency (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11990:21) at Injector._instantiate (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11887:32) at Injector._instantiateProvider (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11859:21) at Injector._new (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11849:19) at InjectorDynamicStrategy.getObjByKeyId (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11733:42) at Injector._getByKeyDefault (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12048:33) at Injector._getByKey (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12002:21) at Injector._getByDependency (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11990:21) at Injector._instantiate (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11887:32) at Injector._instantiateProvider (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11859:21) at Injector._new (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11849:19) at InjectorDynamicStrategy.getObjByKeyId (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11733:42) at Injector._getByKeyDefault (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12048:33) at Injector._getByKey (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12002:21) at Injector._getByDependency (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11990:21) at Injector._instantiate (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11887:32) at Injector._instantiateProvider (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11859:21) at Injector._new (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11849:19) at InjectorDynamicStrategy.getObjByKeyId (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11733:42) at Injector._getByKeyDefault (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12048:33) at Injector._getByKey (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:12002:21) at Injector.get (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2.js:11804:19) at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2477:25 at Array.map (native) at Array.map (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/es6-shim/es6-shim.js:1113:14) at FunctionWithParamTokens.execute (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2476:33) at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2601:25 at Zone.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/angular2-polyfills.js:138:17) at Zone.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2544:30) at runInTestZone (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2588:23) at Object. (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/angular2/bundles/testing.dev.js:2600:33) at attemptAsync (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1819:24) at QueueRunner.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1774:9) at QueueRunner.execute (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1762:10) at Spec.Env.queueRunnerFactory (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:627:35) at Spec.execute (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:353:10) at Object.fn (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:2360:37) at attemptAsync (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1819:24) at QueueRunner.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1774:9) at QueueRunner.execute (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1762:10) at Env.queueRunnerFactory (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:627:35) at Object.fn (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:2345:13) at attemptAsync (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1819:24) at QueueRunner.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1774:9) at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1801:16 at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1745:9 at queueRunnerFactory.onComplete (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:2348:17) at QueueRunner.clearStack (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:605:9) at QueueRunner.run (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1784:12) at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1801:16 at C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:1745:9 at complete (C:/Users/LSANTOS/Desktop/ng2-test-seed/node_modules/jasmine-core/lib/jasmine-core/jasmine.js:365:9)

も参照してくださいhttps://github.com/angular/angular/issues/6325

Answer 1

問題は、単にROUTER_PRIMARY_COMPONENTを提供する必要があります。

import {ROUTER_PRIMARY_COMPONENT} from 'angular2/router'; 

class MockPrimaryComponent { 
} 

beforeEachProviders(() => [ 
    ROUTER_PROVIDERS, 
    provide(ROUTER_PRIMARY_COMPONENT, {useClass: MockPrimaryComponent}), 
    ExampleService, 
    provide(ApplicationRef, { useClass: MockApplicationRef }) 
]); 

Answer 2

この投稿は古いルータに関連していることは知っていますが、これに答えると便利かもしれないと思いました。新しいルータとの角度バージョンrc.1を使用して、私はインスピレーションとして、角以内に、このテストを使用することにより、navigateByUrlのテストを含む、ルータとのユニットテストは、得た：https://github.com/angular/angular/blob/master/modules/%40angular/router/test/integration_spec.ts

はhastle

の多くがここで働いている私を救いました例