所以我正在做一些单元测试。我尝试对以下组件进行单元测试：

export class EcheqDisplayComponent implements OnInit {
  echeq: EcheqSubmissionApi;
  orgId = 1;

  constructor(
    private route: activatedRoute
  ) {
    this.echeq = this.route.snapshot.data['submission'];
  }

  ngOnInit() {
  }

  getanswers(page: EcheqPageApi): any[] {
    return page.elements.map(element => this.echeq.answers[element.name]);
  }

这是它的单元测试：

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

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [ ],imports:[ParticipantEcheqModule,RouterModule.forRoot([])

      ]
    })
    .compileComponents();
  }));

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

  fit('should create component',() => {
    expect(component).toBeTruthy();
  });
});

所以我不会出错。

但是我的问题是。这是做ti的正确方法吗？

因为对activatedRoute使用模拟不是更好吗？

如果是的话，那怎么做才正确呢？

谢谢

这是它的模板：

<div class="echeq-display" *ngIf="echeq">
  <header class="echeq-display-header header">
    <div class="echeq-display-info">
      <h1 class="heading echeq-display-heading">
        {{ echeq.definition.title }}
      </h1>
      <div class="sub-heading echeq-display-subheading">
        <span class="echeq-display-creator">
          Toegekend door:
          {{ echeq.assignedByProfName ? echeq.assignedByProfName : 'Het Systeem' }}
        </span>
        <span class="echeq-display-date">{{
          echeq.definition.createdOnUtc | date: 'dd MMM'
        }}</span>
      </div>
    </div>
    <app-meta-box
      [metadata]="{
        numPages: echeq.definition.numPages,vPoints: echeq.definition.awardedVPoints
      }"
    ></app-meta-box>
  </header>
  <main class="echeq-display-questions body">
    <app-echeq-question
      *ngFor="let page of echeq.definition.pages; let i = index"
      [page]="page"
      [readonly]="true"
      [number]="i + 1"
      [answers]="getanswers(page)"
    ></app-echeq-question>
  </main>
</div>

和这样的单元测试：

 beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [ ],providers: [
        { provide: activatedRoute,useclass: MockactivatedRoute }
      ],imports:[
        ParticipantEcheqModule

      ]
    })
    .compileComponents();
  }));

这是app-meta-box组件：

export class MetaData {
  numPages: number;
  vPoints: number;
}

@Component({
  selector: 'app-meta-box',templateUrl: './meta-box.component.html',styleUrls: ['./meta-box.component.scss']
})
export class MetaBoxComponent implements OnInit {
  @Input() metadata: MetaData;

  constructor() {}

  ngOnInit() {}

}