import { TestBed } from '@angular/core/testing'; import { Library2022Service } from './library2022.service'; describe('Library2022Service', () => { let service: Library2022Service; beforeEach(() => { TestBed.configureTestingModule({}); service = TestBed.inject(Library2022Service); }); it('should be created', () => { expect(service).toBeTruthy(); }); });