import { TestBed } from '@angular/core/testing' ; import { NgxInfiniteViewerService } from './ngx-infinite-viewer.service' ; describe ( 'NgxInfiniteViewerService' , ( ) => { beforeEach ( ( ) => TestBed . configureTestingModule ( { } ) ) ; it ( 'should be created' , ( ) => { const service = TestBed . get ( NgxInfiniteViewerService ) ; expect ( service ) . toBeTruthy ( ) ; } ) ; } ) ;