.html
<ejs-pdfviewer id="pdfViewer" #pdfViewer [serviceUrl]='serv' (documentLoad)='documentLoaded($event)'
style="height:640px;display:block">
</ejs-pdfviewer>
.ts
@ViewChild('pdfViewer')
public pdfviewerControl: PdfViewerComponent;
public serv: string = 'https://ej2services.syncfusion.com/production/web-services/api/pdfviewer';
var viewer = (<any>document.getElementById('pdfViewer')).ej2_instances[0];
.spec.ts
console.log( fixture.debugElement.query(By.css('#pdfViewer')));
console.log(component.pdfviewerControl);
the above statements return null and undefined respectively....How can we test pdfviewer in angular?