import { Alerts } from './alerts'; const MOCK_APP = { httpClient: { addResponseInterceptor: () => {}, }, }; describe('Alerts', () => { let alerts; beforeEach(() => { const element = document.createElement('div'); alerts = new Alerts(element, MOCK_APP); }); it('should create', () => { expect(alerts).toBeTruthy(); }); it('should throw if called without an element', () => { expect(() => { new Alerts(); }).toThrow(); }); });