角度2"失败:无法读取属性'替换'未定义"运行ng test时

时间:2017-04-05 16:30:42

标签: angular unit-testing angular-cli

我已经检查了这个问题的github问题,并查看了各种堆栈溢出问题和博客和内容,我无法找到解决为什么在运行" ng test&#时出现此错误的原因34;在我的角度2应用程序。

以下是测试的结果:

import { TestBed, async } from '@angular/core/testing';
import { AppComponent } from './app.component';
import { RouterModule } from "@angular/router";
import { Location,LocationStrategy } from "@angular/common";

describe('App: MemberAdmin', () => {
  beforeEach(() => {
    TestBed.configureTestingModule({
      declarations: [
        AppComponent
      ],
      imports:[
        RouterModule
      ],
      providers:[
        Location,
        LocationStrategy
      ]
    });
  });

  it('should create the app', async(() => {
    let fixture = TestBed.createComponent(AppComponent);
    let app = fixture.debugElement.componentInstance;
    expect(app).toBeTruthy();
  }));

  it(`should have as title 'app works!'`, async(() => {
    let fixture = TestBed.createComponent(AppComponent);
    let app = fixture.debugElement.componentInstance;
    expect(app.loggedIn).toEqual(false);
  }));

});

我的package.json看起来像这样:

{
  "name": "member-admin",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "postinstall": "typings install",
    "start": "ng serve",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^2.4.10",
    "@angular/compiler": "^2.3.1",
    "@angular/compiler-cli": "^2.3.1",
    "@angular/core": "^2.4.10",
    "@angular/forms": "^2.3.1",
    "@angular/http": "^2.3.1",
    "@angular/platform-browser": "^2.4.10",
    "@angular/platform-browser-dynamic": "^2.3.1",
    "@angular/router": "~3.1.0",
    "angular-calendar": "^0.4.0",
    "angular2-datatable": "^0.5.2",
    "angular2-google-maps": "^0.16.0",
    "bootstrap-datepicker": "^1.6.4",
    "bootstrap-timepicker": "^0.5.2",
    "core-js": "^2.4.1",
    "mydatepicker": "^1.7.7",
    "ng2-datepicker": "^1.8.2",
    "ng2-datetime": "^1.2.2",
    "ng2-facebook-sdk": "^2.1.1",
    "ng2-file-upload": "^1.1.4-2",
    "rxjs": "5.0.1",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.7.8"
  },
  "devDependencies": {
    "@angular/cli": "^1.0.0",
    "@types/jasmine": "^2.2.30",
    "@types/jquery": "^2.0.34",
    "@types/node": "^6.0.42",
    "awesome-typescript-loader": "2.2.1",
    "codelyzer": "1.0.0-beta.1",
    "jasmine-core": "2.4.1",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "4.0.9",
    "ts-node": "1.2.1",
    "tslint": "3.13.0",
    "typescript": "2.2.1",
    "typings": "1.0.4",
    "webdriver-manager": "10.2.5"
  }
}

这是运行ng test时的输出:

  

ng test 05 04 2017 18:19:47.574:WARN [业力]:没有捕获的浏览器,   open http://localhost:9876/ 05 04 2017 18:19:47.606:INFO [业力]:   Karma v1.2.0服务器于http://localhost:9876/ 05 04 2017开始   18:19:47.607:INFO [启动器]:启动浏览器Chrome无限制   并发05 04 2017 18:19:47.614:INFO [launcher]:启动浏览器   Chrome 05 04 2017 18:19:49.239:INFO [Chrome 56.0.2924(Mac OS X.   10.10.5)]:连接到socket /#XvtU7IkkctSlo1kYAAAA,ID为74276965 Chrome 56.0.2924(Mac OS X 10.10.5)应用程序:MemberAdmin应该创建   应用失败           失败:无法阅读财产'替换'未定义的           TypeError:无法读取属性'替换'未定义的               at _stripIndexHtml(webpack:///~/@angular/common/src/location/location.js:224:0< -   SRC / test.ts:9952:15)               在新的位置(webpack:///~/@angular/common/src/location/location.js:41:0< -   SRC / test.ts:9769:54)               在DynamicTestModuleInjector.get(/DynamicTestModule/module.ngfactory.js:125:61)               在DynamicTestModuleInjector.getInternal(/DynamicTestModule/module.ngfactory.js:187:48)               在DynamicTestModuleInjector.NgModuleInjector.get(webpack:///~/@angular/core/src/linker/ng_module_factory.js:139:25< -   SRC / test.ts:19158:44)               在TestBed.get(webpack:///~/@angular/core/bundles/core-testing.umd.js:826:0< -   SRC / test.ts:6078:51)               在CompiledTemplate.proxyViewClass.AppView.injectorGet(webpack:///~/angular/core/src/linker/view.js:152:0< -   SRC / test.ts:29850:45)               在CompiledTemplate.proxyViewClass.DebugAppView.injectorGet   (webpack:///~/@angular/core/src/linker/view.js:580:0< -   SRC / test.ts:30278:49)               在CompiledTemplate.proxyViewClass.View_AppComponent_Host0.createInternal   (/DynamicTestModule/AppComponent/host.ngfactory.js:15:63)               在CompiledTemplate.proxyViewClass.AppView.createHostView(webpack:///~/angular/core/src/linker/view.js:108:0< -   SRC / test.ts:29806:21)               在CompiledTemplate.proxyViewClass.DebugAppView.createHostView   (webpack:///~/@angular/core/src/linker/view.js:564:0< -   SRC / test.ts:30262:52)               在ComponentFactory.create(webpack:///~/@angular/core/src/linker/component_factory.js:202:0< -   SRC / test.ts:13033:25)               在initComponent(webpack:///~/@angular/core/bundles/core-testing.umd.js:865:0< -   SRC / test.ts:6117:53)               在ZoneDelegate.invoke(webpack:///~/zone.js/dist/zone.js:334:0< - src / test.ts:37048:26)               at AsyncTestZoneSpec.onInvoke(webpack:///~/zone.js/dist/async-test.js:49:0< - src / test.ts:23684:39)   Chrome 56.0.2924(Mac OS X 10.10.5)应用程序:MemberAdmin应具有as   标题' app有效!'失败           失败:无法阅读财产'替换'未定义的           TypeError:无法读取属性'替换'未定义的               at _stripIndexHtml(webpack:///~/@angular/common/src/location/location.js:224:0< -   SRC / test.ts:9952:15)               在新的位置(webpack:///~/@angular/common/src/location/location.js:41:0< -   SRC / test.ts:9769:54)               在DynamicTestModuleInjector.get(/DynamicTestModule/module.ngfactory.js:125:61)               在DynamicTestModuleInjector.getInternal(/DynamicTestModule/module.ngfactory.js:187:48)               在DynamicTestModuleInjector.NgModuleInjector.get(webpack:///~/@angular/core/src/linker/ng_module_factory.js:139:25< -   SRC / test.ts:19158:44)               在TestBed.get(webpack:///~/@angular/core/bundles/core-testing.umd.js:826:0< -   SRC / test.ts:6078:51)               在CompiledTemplate.proxyViewClass.AppView.injectorGet(webpack:///~/angular/core/src/linker/view.js:152:0< -   SRC / test.ts:29850:45)               在CompiledTemplate.proxyViewClass.DebugAppView.injectorGet   (webpack:///~/@angular/core/src/linker/view.js:580:0< -   SRC / test.ts:30278:49)               在CompiledTemplate.proxyViewClass.View_AppComponent_Host0.createInternal   (/DynamicTestModule/AppComponent/host.ngfactory.js:15:63)               在CompiledTemplate.proxyViewClass.AppView.createHostView(webpack:///~/angular/core/src/linker/view.js:108:0< -   SRC / test.ts:29806:21)               在CompiledTemplate.proxyViewClass.DebugAppView.createHostView   (webpack:///~/@angular/core/src/linker/view.js:564:0< -   SRC / test.ts:30262:52)               在ComponentFactory.create(webpack:///~/@angular/core/src/linker/component_factory.js:202:0< -   SRC / test.ts:13033:25)               在initComponent(webpack:///~/@angular/core/bundles/core-testing.umd.js:865:0< -   SRC / test.ts:6117:53)               在ZoneDelegate.invoke(webpack:///~/zone.js/dist/zone.js:334:0< - src / test.ts:37048:26)               at AsyncTestZoneSpec.onInvoke(webpack:///~/zone.js/dist/async-test.js:49:0< - src / test.ts:23684:39)   Chrome 56.0.2924(Mac OS X 10.10.5):执行3 of 3(2 FAILED)(0.638   秒/ 0.469秒)Chrome 56.0.2924(Mac OS X 10.10.5)错误
  Disconnectedundefined Chrome 56.0.2924(Mac OS X 10.10.5):已执行3   3(2次失败)(0.638秒/ 0.469秒)

1 个答案:

答案 0 :(得分:4)

我也碰到了这个。 RouterTestingModule对我有用,因为我只是测试组件而不是路由。

以下是文档说的内容:

 * This module sets up the router to be used for testing.
 * It provides spy implementations of {@link Location}, {@link LocationStrategy},
 * and {@link NgModuleFactoryLoader}.

以下是如何添加它:

import {RouterTestingModule} from '@angular/router/testing';

describe('MyComponent', () => {
...
  beforeEach(async(() => {
    TestBed.configureTestingModule({
        imports: [
          RouterTestingModule,
          ...

```

如果您不需要测试路由并仅测试组件,则不应在这些测试中提供LocationLocationStrategy个提供程序。