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 test(t => {34 const error = errorFactory();35 const originalStack = error.stack;36 if (!originalStack) {37 return;38 }39 const clonedError = structuredClone(error);40 assert_equals(clonedError.stack, originalStack);41 }, description + ' (structuredClone())');42 async_test(t => {43 const error = errorFactory();44 const originalStack = error.stack;45 if (!originalStack) {46 t.done();47 return;48 }49 const worker = new Worker('resources/echo-worker.js');50 worker.onmessage = t.step_func_done(e => {51 assert_equals(e.data.stack, originalStack);52 });53 worker.postMessage(error);54 }, description + ' (worker)');55 let iframeTest = (t, url) => {56 const thisTestId = token();57 const error = errorFactory();58 const originalStack = error.stack;59 if (!originalStack) {60 t.done();61 return;62 }63 const iframe = document.createElement('iframe');64 window.addEventListener('message', t.step_func(e => {65 if (e.data.testId === thisTestId) {66 assert_equals(e.data.error.stack, originalStack);67 t.done();68 }69 }));70 iframe.onload = t.step_func(() => {71 iframe.contentWindow.postMessage({ error, testId: thisTestId }, "*");72 });73 iframe.src = url;74 document.body.append(iframe);75 }76 async_test(t => {77 const crossSiteURL = new URL('resources/echo-iframe.html', location.href);78 crossSiteURL.hostname = '{{hosts[alt][www1]}}';79 iframeTest(t, crossSiteURL);80 }, description + ' (cross-site iframe)');81 async_test(t => {82 const sameOriginURL = new URL('resources/echo-iframe.html', location.href);83 iframeTest(t, sameOriginURL);84 }, description + ' (same-origin iframe)')...
Using AI Code Generation
1var wpt = require('webpagetest');2var api = new wpt('A.3b1c2e8d9f0a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p', 'www.webpagetest.org');3 if (err) console.log(err);4 else {5 console.log(data);6 }7});8var wpt = require('webpagetest');9var api = new wpt('A.3b1c2e8d9f0a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p', 'www.webpagetest.org');10 if (err) console.log(err);11 else {12 console.log(data);13 }14});15var wpt = require('webpagetest');16var api = new wpt('A.3b1c2e8d9f0a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p', 'www.webpagetest.org');17 if (err) console.log(err);18 else {19 console.log(data);20 }21});22var wpt = require('webpagetest');23var api = new wpt('A.3b1c2e8d9f0a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p', 'www.webpagetest.org');24 if (err) console.log(err);25 else {26 console.log(data);27 }28});
Using AI Code Generation
1var webpagetest = require('webpagetest');2var wpt = new webpagetest('www.webpagetest.org', 'A.7a1f8b1a7a1f8b1a7a1f8b1a7a1f8b1a');3}, function(err, data) {4 if (err) return console.error(err);5 wpt.getTestResults(data.data.testId, function(err, data) {6 if (err) return console.error(err);7 console.log(data.data.median.firstView.loadTime);8 });9});
Using AI Code Generation
1var wpt = require('webpagetest');2var options = {3}4var wpt = new WebPageTest('www.webpagetest.org', options.key);5var wpt = new WebPageTest('www.webpagetest.org', options.key);6wpt.runTest(url, function(err, data) {7 if (err) return console.log(err);8 console.log(data);9});
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