1/* 2 * Copyright (c) 2025 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 { AssertResult } from '../modal/assertModel'; 17export function assertThrow(actual: () => void, args: string[]): AssertResult { 18 let message = ''; 19 let pass = false; 20 if (typeof actual !== 'function') { 21 message = "toThrow's Actual should be a Function"; 22 } else { 23 let hasThrow = false; 24 let throwError = new Error(); 25 try { 26 actual(); 27 } catch (e: Error) { 28 hasThrow = true; 29 throwError = e; 30 } 31 if (!hasThrow) { 32 message = 'function did not throw an exception'; 33 } else if (throwError && throwError.message === args[0]) { 34 pass = true; 35 } else { 36 message = `expect to throw ${args[0]} , actual throw ${throwError.message}`; 37 } 38 } 39 return { pass, message }; 40} 41