/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import {zoneSymbol} from '../../lib/common/utils'; import {ifEnvSupports} from '../test-util'; declare const global: any; function supportMediaQuery() { const _global = typeof window === 'object' && window || typeof self === 'object' && self || global; return _global['MediaQueryList'] && _global['matchMedia']; } describe('test mediaQuery patch', ifEnvSupports(supportMediaQuery, () => { it('test whether addListener is patched', () => { const mqList = window.matchMedia('min-width:500px'); if (mqList && mqList['addListener']) { expect((mqList as any)[zoneSymbol('addListener')]).toBeTruthy(); } }); }));