import '@testing-library/jest-dom'; window.IntersectionObserver = class IntersectionObserver { readonly root: Element | null; readonly rootMargin: string; readonly thresholds: ReadonlyArray; constructor() { this.root = null; this.rootMargin = ''; this.thresholds = []; } disconnect() {} observe() {} takeRecords(): IntersectionObserverEntry[] { return []; } unobserve() {} }; jest.mock('@rive-app/canvas', () => ({ Rive: jest.fn().mockImplementation(() => ({ on: jest.fn(), stop: jest.fn(), })), Layout: jest.fn(), Fit: { Cover: 'cover', }, Alignment: { Center: 'center', }, EventType: { Load: 'load', }, StateMachineInputType: { Number: 1, Boolean: 2, Trigger: 3, }, }));