52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
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/**
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* Copyright 2023 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import expect from 'expect';
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import {
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DeferredPromise,
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createDeferredPromise,
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} from 'puppeteer-core/internal/util/DeferredPromise.js';
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describe('DeferredPromise', function () {
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it('should catch errors', async () => {
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// Async function before try/catch.
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async function task() {
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await new Promise(resolve => {
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return setTimeout(resolve, 50);
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});
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}
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// Async function that fails.
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function fails(): DeferredPromise<void> {
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const deferred = createDeferredPromise<void>();
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setTimeout(() => {
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deferred.reject(new Error('test'));
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}, 25);
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return deferred;
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}
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const expectedToFail = fails();
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await task();
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let caught = false;
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try {
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await expectedToFail.valueOrThrow();
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} catch (err) {
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expect((err as Error).message).toEqual('test');
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caught = true;
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}
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expect(caught).toBeTruthy();
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});
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});
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