Best JavaScript code snippet using wpt
structured-cloning-error-stack-optional.sub.window.js
Source:structured-cloning-error-stack-optional.sub.window.js
1// META: script=/common/utils.js2// .stack properties on errors are unspecified, but are present in most3// browsers, most of the time. https://github.com/tc39/proposal-error-stacks/ tracks standardizing them.4// Tests will pass automatically if the .stack property isn't present.5stackTests(() => {6 return new Error('some message');7}, 'page-created Error');8stackTests(() => {9 return new DOMException('InvalidStateError', 'some message');10}, 'page-created DOMException');11stackTests(() => {12 try {13 Object.defineProperty();14 } catch (e) {15 return e;16 }17}, 'JS-engine-created TypeError');18stackTests(() => {19 try {20 HTMLParagraphElement.prototype.align;21 } catch (e) {22 return e;23 }24}, 'web API-created TypeError');25stackTests(() => {26 try {27 document.createElement('');28 } catch (e) {29 return e;30 }31}, 'web API-created DOMException');32function stackTests(errorFactory, description) {33 async_test(t => {34 const error = errorFactory();35 const originalStack = error.stack;36 if (!originalStack) {37 t.done();38 return;39 }40 const worker = new Worker('resources/echo-worker.js');41 worker.onmessage = t.step_func_done(e => {42 assert_equals(e.data.stack, originalStack);43 });44 worker.postMessage(error);45 }, description + ' (worker)');46 async_test(t => {47 const thisTestId = token();48 const error = errorFactory();49 const originalStack = error.stack;50 if (!originalStack) {51 t.done();52 return;53 }54 const iframe = document.createElement('iframe');55 window.addEventListener('message', t.step_func(e => {56 if (e.data.testId === thisTestId) {57 assert_equals(e.data.error.stack, originalStack);58 t.done();59 }60 }));61 iframe.onload = t.step_func(() => {62 iframe.contentWindow.postMessage({ error, testId: thisTestId }, "*");63 });64 const crossSiteEchoIFrame = new URL('resources/echo-iframe.html', location.href);65 crossSiteEchoIFrame.hostname = '{{hosts[alt][www1]}}';66 iframe.src = crossSiteEchoIFrame;67 document.body.append(iframe);68 }, description + ' (cross-site iframe)');...
Using AI Code Generation
1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3 if (err) return console.error(err);4 console.log('Test started: ' + data);5 wpt.getTestStatus(data.data.testId, function(err, data) {6 if (err) return console.error(err);7 console.log(data);8 });9});10### WebPageTest(host, [options])11### runTest(url, [options], callback)
Using AI Code Generation
1var testId = wpt.getTestID();2var testUrl = wpt.getTestUrl();3var testInfo = wpt.getTestInfo();4var testResults = wpt.getTestResults();5var viewableTestResults = wpt.getTestViewableResults();6var rawTestResults = wpt.getTestRawResults();7var viewableRawTestResults = wpt.getTestViewableRawResults();8var testResults = wpt.getTestResults();9var testResults = wpt.getTestResults();10var testResults = wpt.getTestResults();11var testResults = wpt.getTestResults();12var testResults = wpt.getTestResults();13var testResults = wpt.getTestResults();14var testResults = wpt.getTestResults();15var testResults = wpt.getTestResults();16var testResults = wpt.getTestResults();17var testResults = wpt.getTestResults();18var testResults = wpt.getTestResults();19var testResults = wpt.getTestResults();20var testResults = wpt.getTestResults();
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