angular-cn/aio/src/app/app.component.spec.ts

import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { AppComponent } from './app.component';
import { AppModule } from './app.module';

describe('AppComponent', () => {
  let component: AppComponent;
  let fixture: ComponentFixture<AppComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [ AppModule ],
      providers: [
      ]
    });
    TestBed.compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(AppComponent);
    component = fixture.componentInstance;
  });

  it('should create', () => {
    expect(component).toBeDefined();
  });
});