How to use messagePortCount method in wpt

Best JavaScript code snippet using wpt

transfer-with-messageport.window.js

Source:transfer-with-messageport.window.js

1"use strict";2function receiveEventOnce(target, name) {3  return new Promise(resolve => {4    target.addEventListener(5      name,6      ev => {7        resolve(ev);8      },9      { once: true }10    );11  });12}13async function postAndTestMessageEvent(data, transfer, title) {14  postMessage(data, "*", transfer);15  const messagePortCount = transfer.filter(i => i instanceof MessagePort)16    .length;17  const ev = await receiveEventOnce(window, "message");18  assert_equals(19    ev.ports.length,20    messagePortCount,21    `Correct number of ports ${title}`22  );23  for (const [i, port] of ev.ports.entries()) {24    assert_true(25      port instanceof MessagePort,26      `ports[${i}] include MessagePort ${title}`27    );28  }29  for (const [key, value] of Object.entries(data)) {30    assert_true(31      ev.data[key] instanceof value.constructor,32      `data.${key} has correct interface ${value.constructor.name} ${title}`33    );34  }35}36async function transferMessagePortWithOrder1(stream) {37  const channel = new MessageChannel();38  await postAndTestMessageEvent(39    { stream, port2: channel.port2 },40    [stream, channel.port2],41    `when transferring [${stream.constructor.name}, MessagePort]`42  );43}44async function transferMessagePortWithOrder2(stream) {45  const channel = new MessageChannel();46  await postAndTestMessageEvent(47    { stream, port2: channel.port2 },48    [channel.port2, stream],49    `when transferring [MessagePort, ${stream.constructor.name}]`50  );51}52async function transferMessagePortWithOrder3(stream) {53  const channel = new MessageChannel();54  await postAndTestMessageEvent(55    { port1: channel.port1, stream, port2: channel.port2 },56    [channel.port1, stream, channel.port2],57    `when transferring [MessagePort, ${stream.constructor.name}, MessagePort]`58  );59}60async function transferMessagePortWithOrder4(stream) {61  const channel = new MessageChannel();62  await postAndTestMessageEvent(63    {},64    [channel.port1, stream, channel.port2],65    `when transferring [MessagePort, ${stream.constructor.name}, MessagePort] but with empty data`66  );67}68async function transferMessagePortWithOrder5(stream) {69  const channel = new MessageChannel();70  await postAndTestMessageEvent(71    { port2: channel.port2, port1: channel.port1, stream },72    [channel.port1, stream, channel.port2],73    `when transferring [MessagePort, ${stream.constructor.name}, MessagePort] but with data having different order`74  );75}76async function transferMessagePortWithOrder6(stream) {77  const channel = new MessageChannel();78  await postAndTestMessageEvent(79    { port2: channel.port2, port1: channel.port1 },80    [channel.port1, stream, channel.port2],81    `when transferring [MessagePort, ${stream.constructor.name}, MessagePort] but with stream not being in the data`82  );83}84async function transferMessagePortWithOrder7(stream) {85  const channel = new MessageChannel();86  await postAndTestMessageEvent(87    { stream },88    [channel.port1, stream, channel.port2],89    `when transferring [MessagePort, ${stream.constructor.name}, MessagePort] but with ports not being in the data`90  );91}92async function transferMessagePortWith(constructor) {93  await transferMessagePortWithOrder1(new constructor());94  await transferMessagePortWithOrder2(new constructor());95  await transferMessagePortWithOrder3(new constructor());96}97async function advancedTransferMesagePortWith(constructor) {98  await transferMessagePortWithOrder4(new constructor());99  await transferMessagePortWithOrder5(new constructor());100  await transferMessagePortWithOrder6(new constructor());101  await transferMessagePortWithOrder7(new constructor());102}103async function mixedTransferMessagePortWithOrder1() {104  const channel = new MessageChannel();105  const readable = new ReadableStream();106  const writable = new WritableStream();107  const transform = new TransformStream();108  await postAndTestMessageEvent(109    {110      readable,111      writable,112      transform,113      port1: channel.port1,114      port2: channel.port2,115    },116    [readable, writable, transform, channel.port1, channel.port2],117    `when transferring [ReadableStream, WritableStream, TransformStream, MessagePort, MessagePort]`118  );119}120async function mixedTransferMessagePortWithOrder2() {121  const channel = new MessageChannel();122  const readable = new ReadableStream();123  const writable = new WritableStream();124  const transform = new TransformStream();125  await postAndTestMessageEvent(126    { readable, writable, transform },127    [transform, channel.port1, readable, channel.port2, writable],128    `when transferring [TransformStream, MessagePort, ReadableStream, MessagePort, WritableStream]`129  );130}131async function mixedTransferMessagePortWithOrder3() {132  const channel = new MessageChannel();133  const readable1 = new ReadableStream();134  const readable2 = new ReadableStream();135  const writable1 = new WritableStream();136  const writable2 = new WritableStream();137  const transform1 = new TransformStream();138  const transform2 = new TransformStream();139  await postAndTestMessageEvent(140    { readable1, writable1, transform1, readable2, writable2, transform2 },141    [142      transform2,143      channel.port1,144      readable1,145      channel.port2,146      writable2,147      readable2,148      writable1,149      transform1,150    ],151    `when transferring [TransformStream, MessagePort, ReadableStream, MessagePort, WritableStream, ReadableStream, WritableStream, TransformStream] but with the data having different order`152  );153}154async function mixedTransferMesagePortWith() {155  await mixedTransferMessagePortWithOrder1();156  await mixedTransferMessagePortWithOrder2();157  await mixedTransferMessagePortWithOrder3();158}159promise_test(async t => {160  await transferMessagePortWith(ReadableStream);161}, "Transferring a MessagePort with a ReadableStream should set `.ports`");162promise_test(async t => {163  await transferMessagePortWith(WritableStream);164}, "Transferring a MessagePort with a WritableStream should set `.ports`");165promise_test(async t => {166  await transferMessagePortWith(TransformStream);167}, "Transferring a MessagePort with a TransformStream should set `.ports`");168promise_test(async t => {169  await transferMessagePortWith(ReadableStream);170}, "Transferring a MessagePort with a ReadableStream should set `.ports`, advanced");171promise_test(async t => {172  await transferMessagePortWith(WritableStream);173}, "Transferring a MessagePort with a WritableStream should set `.ports`, advanced");174promise_test(async t => {175  await transferMessagePortWith(TransformStream);176}, "Transferring a MessagePort with a TransformStream should set `.ports`, advanced");177promise_test(async t => {178  await mixedTransferMesagePortWith();179}, "Transferring a MessagePort with multiple streams should set `.ports`");180test(() => {181  assert_throws_dom("DataCloneError", () =>182    postMessage({ stream: new ReadableStream() }, "*")183  );184}, "ReadableStream must not be serializable");185test(() => {186  assert_throws_dom("DataCloneError", () =>187    postMessage({ stream: new WritableStream() }, "*")188  );189}, "WritableStream must not be serializable");190test(() => {191  assert_throws_dom("DataCloneError", () =>192    postMessage({ stream: new TransformStream() }, "*")193  );...

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3  if (err) return console.log(err);4  console.log('Test status check: ' + data.statusText);5  wpt.getTestStatus(data.data.testId, function(err, data) {6    if (err) return console.log(err);7    console.log('Test status check: ' + data.statusText);8    wpt.getTestResults(data.data.testId, function(err, data) {9      if (err) return console.log(err);10      console.log('Test status check: ' + data.statusText);11      if (data.data.statusCode === 200) {12        console.log('Test completed successfully');13        console.log('Test results: ' + data.data.summary);14        console.log('Test results: ' + data.data.median.firstView);15        console.log('Test results: ' + data.data.median.repeatView);16        console.log('Test results: ' + data.data.median.runs);17      } else {18        console.log('Test failed');19      }20    });21  });22});

Using AI Code Generation

1var wpt = require('webpagetest');2var webPageTest = new wpt('www.webpagetest.org');3var url = 'www.google.com';4var options = {runs: 1, location: 'Dulles:Chrome', pollResults: 1, firstViewOnly: true};5webPageTest.runTest(url, options, function(err, data) {6  if (err) return console.error(err);7  console.log('Test ID: %s', data.data.testId);8  console.log('Test URL: %s', data.data.summary);9  console.log('Test Summary: %s', data.data.summary);10  console.log('Test Results: %s', data.data.userUrl);11  var testId = data.data.testId;12  webPageTest.getTestResults(testId, function(err, data) {13    if (err) return console.error(err);14    console.log('Test Results: %s', data.data.median.firstView.messages);15  });16});

Using AI Code Generation

1var worker = new Worker("wpt-worker.js");2console.log(worker.messagePortCount);3### Worker.terminate()4var worker = new Worker("wpt-worker.js");5worker.terminate();6var worker = new Worker("wpt-worker.js");7worker.onmessage = function (event) {8  console.log(event.data);9};10var worker = new Worker("wpt-worker.js");11worker.onmessageerror = function (event) {12  console.log(event.data);13};14var worker = new Worker("wpt-worker.js");15worker.onerror = function (event) {16  console.log(event.data);17};

Using AI Code Generation

1var wpt = require('webworker-threads');2var worker = wpt.create();3worker.eval(function() {4  postMessage('hello');5  var port = new MessagePort();6  postMessage('world');7  postMessage('port', [port]);8  postMessage('port again', [port]);9  postMessage('port again', [port]);10  postMessage('end');11});12worker.on('message', function(message) {13  if (message === 'end') {14    console.log('worker has ' + this.messagePortCount() + ' message ports');15    worker.terminate();16  }17});18var wpt = require('webworker-threads');19var worker = wpt.create();20worker.eval(function() {21  postMessage('hello');22  var port = new MessagePort();23  postMessage('world');24  postMessage('port', [port]);25  postMessage('port again', [port]);26  postMessage('port again', [port]);27  postMessage('end');28});29worker.on('message', function(message) {30  if (message === 'end') {31    console.log('worker has ' + this.messagePortCount() + ' message ports');32    worker.terminate();33  }34});35var wpt = require('webworker-threads');36var worker = wpt.create();37worker.eval(function() {38  postMessage('hello');39  var port = new MessagePort();40  postMessage('world');41  postMessage('port', [port]);42  postMessage('port again', [port]);43  postMessage('port again', [port]);44  postMessage('end');45});46worker.on('message', function(message) {47  if (message === 'end') {48    console.log('worker has ' + this.messagePortCount() + ' message ports');49    worker.terminate();50  }51});

Using AI Code Generation

1var wpt = require('webpagetest');2var options = {3};4wpt.runTest(url, options, function (err, data) {5    if (err) {6        console.log('Error: ' + err);7    } else {8        console.log('Test status: ' + data.statusText);9        console.log('Test ID: ' + data.data.testId);10        console.log('Test URL: ' + data.data.summary);11        console.log('Test started at: ' + data.data.from);12        console.log('Test completed at: ' + data.data.to);13        console.log('Test messagePortCount: ' + data.data.messagePortCount);14    }15});

Using AI Code Generation

1var worker = new Worker('worker.js');2worker.onmessage = function(event) {3  if (event.data == "done") {4    postMessage(worker.messagePortCount);5    worker.terminate();6  }7};8onmessage = function(event) {9  if (event.data == "start") {10    postMessage("done");11  }12};13var worker = new Worker('worker.js');14worker.onmessage = function(event) {15  if (event.data == "done") {16    postMessage(worker.messagePortCount);17    worker.terminate();18  }19};20onmessage = function(event) {21  if (event.data == "start") {22    postMessage("done");23  }24};25var worker = new Worker('worker.js');26worker.onmessage = function(event) {27  if (event.data == "done") {28    postMessage(worker.messagePortCount);29    worker.terminate();30  }31};32onmessage = function(event) {33  if (event.data == "start") {34    postMessage("done");35  }36};37var worker = new Worker('worker.js');38worker.onmessage = function(event) {39  if (event.data == "done") {

Automation Testing Tutorials

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.