setupTests.ts

import '@testing-library/jest-dom';

window.IntersectionObserver = class IntersectionObserver {
  readonly root: Element | null;

  readonly rootMargin: string;

  readonly thresholds: ReadonlyArray<number>;

  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,
  },
}));