unicorn-utterances/__mocks__/jest.setup.js

// Optional: configure or set up a testing framework before each test.
// If you delete this file, remove `setupFilesAfterEnv` from `jest.config.js`

// Used for __tests__/testing-library.js
// Learn more: https://github.com/testing-library/jest-dom
require("@testing-library/jest-dom/extend-expect");
require("./modules");

global.IntersectionObserver = class IntersectionObserver {
  constructor() {}

  observe() {
    return null;
  }

  disconnect() {
    return null;
  }

  unobserve() {
    return null;
  }
};