如何在span中测试我的ngfor

Question

我想测试我的组件，我想更详细地测试我的ng如何？

<a class="box-label__title-label-wrapper box-label__title-label-wrapper--margin-top"
   (click)="click()"
   [link]="link"
   [target]="target"
   [externalLink]="externalLink"
   [ngClass]="{'clickable': clickable, 'disabled': disabled}">
  <div *ngIf="headings" class="box-label__title box-label__title--label-{{display}}" maeOverflow>
    <span *ngFor="let h of headings"
          class="box-label__title-element"><span class="box-label__title-key">{{h.key}}</span>: <span class="box-label__title-value">{{h.value}}</span></span>
  </div>
  <span class="box-label__label box-label__label--{{display}}" maeOverflow>{{label || '&nbsp;'}}</span>
</a>

罐