ant-design-vue/tests/setup.js

import { config } from '@vue/test-utils';
const util = require('util');

config.global.stubs = {
  transition: false,
  'transition-group': false,
};
/* eslint-disable global-require */
if (typeof window !== 'undefined') {
  global.window.resizeTo = (width, height) => {
    global.window.innerWidth = width || global.window.innerWidth;
    global.window.innerHeight = height || global.window.innerHeight;
    global.window.dispatchEvent(new Event('resize'));
  };
  global.window.scrollTo = () => {};
  if (!window.matchMedia) {
    Object.defineProperty(global.window, 'matchMedia', {
      value: jest.fn(query => ({
        matches: query.includes('max-width'),
        addListener: jest.fn(),
        removeListener: jest.fn(),
      })),
    });
  }

  // ref: https://jestjs.io/docs/manual-mocks#mocking-methods-which-are-not-implemented-in-jsdom
  // ref: https://github.com/jsdom/jsdom/issues/2524
  Object.defineProperty(window, 'TextEncoder', {
    writable: true,
    value: util.TextEncoder,
  });
  Object.defineProperty(window, 'TextDecoder', {
    writable: true,
    value: util.TextDecoder,
  });
}

global.ResizeObserver = require('resize-observer-polyfill');

// The built-in requestAnimationFrame and cancelAnimationFrame not working with jest.runFakeTimes()
// https://github.com/facebook/jest/issues/5147
global.requestAnimationFrame = function (cb) {
  return setTimeout(cb, 0);
};

global.cancelAnimationFrame = function (cb) {
  return clearTimeout(cb, 0);
};

const mockMath = Object.create(global.Math);
mockMath.random = () => 0.5;
global.Math = mockMath;