import { TestBed } from '@angular/core/testing'; import { PdfService } from './pdf.service'; import {HttpClientTestingModule} from '@angular/common/http/testing'; describe('PdfService', () => { let service: PdfService; beforeEach(() => { TestBed.configureTestingModule({ imports: [HttpClientTestingModule], }); service = TestBed.inject(PdfService); }); it('should be created', () => { expect(service).toBeTruthy(); }); });