1/* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import '@testing-library/jest-dom'; 17 18Object.defineProperty(window, 'matchMedia', { 19 writable: true, 20 value: jest.fn().mockImplementation((query) => ({ 21 matches: false, 22 media: query, 23 onchange: null, 24 addListener: jest.fn(), 25 removeListener: jest.fn(), 26 addEventListener: jest.fn(), 27 removeEventListener: jest.fn(), 28 dispatchEvent: jest.fn(), 29 })), 30}); 31 32global.IntersectionObserver = class IntersectionObserver { 33 root: Element | null = null; 34 rootMargin: string = ''; 35 thresholds: ReadonlyArray<number> = []; 36 37 constructor(callback: IntersectionObserverCallback, options?: IntersectionObserverInit) {} 38 39 observe(target: Element): void {} 40 41 unobserve(target: Element): void {} 42 43 disconnect(): void {} 44 45 takeRecords(): IntersectionObserverEntry[] { 46 return []; 47 } 48}; 49