Best JavaScript code snippet using wpt
early-hints-helpers.sub.js
Source:early-hints-helpers.sub.js
1"use strict";2const SAME_ORIGIN = "https://{{host}}:{{ports[h2][0]}}";3const CROSS_ORIGIN = "https://{{hosts[alt][www]}}:{{ports[h2][0]}}";4const RESOURCES_PATH = "/loading/early-hints/resources";5const SAME_ORIGIN_RESOURCES_URL = SAME_ORIGIN + RESOURCES_PATH;6const CROSS_ORIGIN_RESOURCES_URL = CROSS_ORIGIN + RESOURCES_PATH;7/**8 * Navigate to a test page with an Early Hints response.9 *10 * @typedef {Object} Preload11 * @property {string} url - A URL to preload. Note: This is relative to the12 * `test_url` parameter of `navigateToTestWithEarlyHints()`.13 * @property {string} as_attr - `as` attribute of this preload.14 *15 * @param {string} test_url - URL of a test after the Early Hints response.16 * @param {Array<Preload>} preloads - Preloads included in the Early Hints response.17 */18function navigateToTestWithEarlyHints(test_url, preloads) {19 const params = new URLSearchParams();20 params.set("test_url", test_url);21 for (const preload of preloads) {22 params.append("preloads", JSON.stringify(preload));23 }24 const url = "resources/early-hints-test-loader.h2.py?" + params.toString();25 window.location.replace(new URL(url, window.location));26}27/**28 * Parses the query string of the current window location and returns preloads29 * in the Early Hints response sent via `navigateToTestWithEarlyHints()`.30 *31 * @returns {Array<Preload>}32 */33function getPreloadsFromSearchParams() {34 const params = new URLSearchParams(window.location.search);35 const encoded_preloads = params.getAll("preloads");36 const preloads = [];37 for (const encoded of encoded_preloads) {38 preloads.push(JSON.parse(encoded));39 }40 return preloads;41}42/**43 * Fetches a script.44 *45 * @param {string} url46 */47 async function fetchScript(url) {48 return new Promise((resolve) => {49 const el = document.createElement("script");50 el.src = url;51 el.onload = resolve;52 document.body.appendChild(el);53 });54}55/**56 * Returns true when the resource is preloaded via Early Hints.57 *58 * @param {string} url59 * @returns {boolean}60 */61function isPreloadedByEarlyHints(url) {62 const entries = performance.getEntriesByName(url);63 assert_equals(entries.length, 1);64 return entries[0].initiatorType === "early-hints";65}66/**67 * Navigate to the referrer policy test page.68 *69 * @param {string} referrer_policy - A value of Referrer-Policy to test.70 */71function testReferrerPolicy(referrer_policy) {72 const params = new URLSearchParams();73 params.set("referrer-policy", referrer_policy);74 const same_origin_preload_url = SAME_ORIGIN_RESOURCES_URL + "/fetch-and-record-js.h2.py?id=" + token();75 params.set("same-origin-preload-url", same_origin_preload_url);76 const cross_origin_preload_url = CROSS_ORIGIN_RESOURCES_URL + "/fetch-and-record-js.h2.py?id=" + token();77 params.set("cross-origin-preload-url", cross_origin_preload_url);78 const path = "resources/referrer-policy-test-loader.h2.py?" + params.toString();79 const url = new URL(path, window.location);80 window.location.replace(url);...
Using AI Code Generation
1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3 if (err) {4 console.log('Error: ' + err);5 } else {6 console.log('Test submitted successfully. View your test results at: ' + data.data.userUrl);7 }8});9var wpt = require('webpagetest');10var wpt = new WebPageTest('www.webpagetest.org');11 if (err) {12 console.log('Error: ' + err);13 } else {14 console.log('Test submitted successfully. View your test results at: ' + data.data.userUrl);15 }16});17var wpt = require('webpagetest');18var wpt = new WebPageTest('www.webpagetest.org');19 if (err) {20 console.log('Error: ' + err);21 } else {22 console.log('Test submitted successfully. View your test results at: ' + data.data.userUrl);23 }24});
Using AI Code Generation
1var wpt = require('wptdriver');2var test = new wpt.WebPageTest('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef');3 if (err) {4 console.log('Error: ' + err.message);5 } else {6 console.log('Test Complete');7 }8});9var wpt = require('wptdriver');10var test = new wpt.WebPageTest('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef');11 if (err) {12 console.log('Error: ' + err.message);13 } else {14 console.log('Test Complete');15 }16});
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!