1/* 2 * Copyright (c) 2022 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 isPromiseLike from './isPromiseLike'; 17 18function assertPromiseIsRejected(actualPromise) { 19 if (!isPromiseLike(actualPromise)) { 20 return Promise.reject().then(function () { 21 }, function () { 22 return {pass: false, message: 'Expected not be called on a promise.'}; 23 }); 24 } 25 const helper = {}; 26 return Promise.race([actualPromise, Promise.resolve(helper)]).then( 27 function (got) { 28 return { 29 pass: false, 30 message: 'expect isRejected, but actualValue is ' 31 + (helper === got ? 'isPending' : 'resolve') 32 }; 33 }, 34 function () { 35 return {pass: true, message: 'actualValue is isRejected'}; 36 } 37 ); 38} 39 40export default assertPromiseIsRejected;