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How to use makeWaitForNextTask method in Playwright Internal

Best JavaScript code snippet using playwright-internal

index.js

Source:index.js

...45 * See the License for the specific language governing permissions and46 * limitations under the License.47 */48// See https://joel.tools/microtasks/49function makeWaitForNextTask() {50  // As of Mar 2021, Electron v12 doesn't create new task with `setImmediate` despite51  // using Node 14 internally, so we fallback to `setTimeout(0)` instead.52  // @see https://github.com/electron/electron/issues/2826153  if (process.versions.electron) return callback => setTimeout(callback, 0);54  if (parseInt(process.versions.node, 10) >= 11) return setImmediate; // Unlike Node 11, Node 10 and less have a bug with Task and MicroTask execution order:55  // - https://github.com/nodejs/node/issues/2225756  //57  // So we can't simply run setImmediate to dispatch code in a following task.58  // However, we can run setImmediate from-inside setImmediate to make sure we're getting59  // in the following task.60  let spinning = false;61  const callbacks = [];62  const loop = () => {63    const callback = callbacks.shift();...

utils.js

Source:utils.js

...18import * as util from 'util'19import * as crypto from 'crypto'20const mkdirAsync = util.promisify(fs.mkdir.bind(fs))21// See https://joel.tools/microtasks/22export function makeWaitForNextTask() {23  if (parseInt(process.versions.node, 10) >= 11) return setImmediate24  // Unlike Node 11, Node 10 and less have a bug with Task and MicroTask execution order:25  // - https://github.com/nodejs/node/issues/2225726  //27  // So we can't simply run setImmediate to dispatch code in a following task.28  // However, we can run setImmediate from-inside setImmediate to make sure we're getting29  // in the following task.30  let spinning = false31  const callbacks = []32  const loop = () => {33    const callback = callbacks.shift()34    if (!callback) {35      spinning = false36      return...

playwrightClient.js

Source:playwrightClient.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.PlaywrightClient = void 0;6var _ws = _interopRequireDefault(require("ws"));7var _connection = require("../client/connection");8var _utils = require("../utils/utils");9function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }10/**11 * Copyright (c) Microsoft Corporation.12 *13 * Licensed under the Apache License, Version 2.0 (the "License");14 * you may not use this file except in compliance with the License.15 * You may obtain a copy of the License at16 *17 * http://www.apache.org/licenses/LICENSE-2.018 *19 * Unless required by applicable law or agreed to in writing, software20 * distributed under the License is distributed on an "AS IS" BASIS,21 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.22 * See the License for the specific language governing permissions and23 * limitations under the License.24 */25class PlaywrightClient {26  static async connect(options) {27    const {28      wsEndpoint,29      timeout = 3000030    } = options;31    const connection = new _connection.Connection();32    connection.markAsRemote();33    const ws = new _ws.default(wsEndpoint);34    const waitForNextTask = (0, _utils.makeWaitForNextTask)();35    connection.onmessage = message => {36      if (ws.readyState === 237      /** CLOSING */38      || ws.readyState === 339      /** CLOSED */40      ) throw new Error('PlaywrightClient: writing to closed WebSocket connection');41      ws.send(JSON.stringify(message));42    };43    ws.on('message', message => waitForNextTask(() => connection.dispatch(JSON.parse(message.toString()))));44    const errorPromise = new Promise((_, reject) => ws.on('error', error => reject(error)));45    const closePromise = new Promise((_, reject) => ws.on('close', () => reject(new Error('Connection closed'))));46    const playwrightClientPromise = new Promise((resolve, reject) => {47      let playwright;48      ws.on('open', async () => {49        playwright = await connection.initializePlaywright();50        resolve(new PlaywrightClient(playwright, ws));51      });52      ws.on('close', (code, reason) => connection.close(reason));53    });54    let timer;55    try {56      await Promise.race([playwrightClientPromise, errorPromise, closePromise, new Promise((_, reject) => timer = setTimeout(() => reject(`Timeout of ${timeout}ms exceeded while connecting.`), timeout))]);57      return await playwrightClientPromise;58    } finally {59      clearTimeout(timer);60    }61  }62  constructor(playwright, ws) {63    this._playwright = void 0;64    this._ws = void 0;65    this._closePromise = void 0;66    this._playwright = playwright;67    this._ws = ws;68    this._closePromise = new Promise(f => ws.on('close', f));69  }70  playwright() {71    return this._playwright;72  }73  async close() {74    this._ws.close();75    await this._closePromise;76  }77}...

transport.js

Source:transport.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.Transport = void 0;6var _utils = require("../utils/utils");7/**8 * Copyright (c) Microsoft Corporation.9 *10 * Licensed under the Apache License, Version 2.0 (the "License");11 * you may not use this file except in compliance with the License.12 * You may obtain a copy of the License at13 *14 * http://www.apache.org/licenses/LICENSE-2.015 *16 * Unless required by applicable law or agreed to in writing, software17 * distributed under the License is distributed on an "AS IS" BASIS,18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.19 * See the License for the specific language governing permissions and20 * limitations under the License.21 */22class Transport {23  constructor(pipeWrite, pipeRead, closeable, endian = 'le') {24    this._pipeWrite = void 0;25    this._data = Buffer.from([]);26    this._waitForNextTask = (0, _utils.makeWaitForNextTask)();27    this._closed = false;28    this._bytesLeft = 0;29    this.onmessage = void 0;30    this.onclose = void 0;31    this._endian = void 0;32    this._closeableStream = void 0;33    this._pipeWrite = pipeWrite;34    this._endian = endian;35    this._closeableStream = closeable;36    pipeRead.on('data', buffer => this._dispatch(buffer));37    pipeRead.on('close', () => {38      this._closed = true;39      if (this.onclose) this.onclose();40    });41    this.onmessage = undefined;42    this.onclose = undefined;43  }44  send(message) {45    if (this._closed) throw new Error('Pipe has been closed');46    const data = Buffer.from(message, 'utf-8');47    const dataLength = Buffer.alloc(4);48    if (this._endian === 'be') dataLength.writeUInt32BE(data.length, 0);else dataLength.writeUInt32LE(data.length, 0);49    this._pipeWrite.write(dataLength);50    this._pipeWrite.write(data);51  }52  close() {53    // Let it throw.54    this._closeableStream.close();55  }56  _dispatch(buffer) {57    this._data = Buffer.concat([this._data, buffer]);58    while (true) {59      if (!this._bytesLeft && this._data.length < 4) {60        // Need more data.61        break;62      }63      if (!this._bytesLeft) {64        this._bytesLeft = this._endian === 'be' ? this._data.readUInt32BE(0) : this._data.readUInt32LE(0);65        this._data = this._data.slice(4);66      }67      if (!this._bytesLeft || this._data.length < this._bytesLeft) {68        // Need more data.69        break;70      }71      const message = this._data.slice(0, this._bytesLeft);72      this._data = this._data.slice(this._bytesLeft);73      this._bytesLeft = 0;74      this._waitForNextTask(() => {75        if (this.onmessage) this.onmessage(message.toString('utf-8'));76      });77    }78  }79}...

pipeTransport.js

Source:pipeTransport.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.PipeTransport = void 0;6var _utils = require("../utils/utils");7var _debugLogger = require("../utils/debugLogger");8/**9 * Copyright 2018 Google Inc. All rights reserved.10 * Modifications copyright (c) Microsoft Corporation.11 *12 * Licensed under the Apache License, Version 2.0 (the "License");13 * you may not use this file except in compliance with the License.14 * You may obtain a copy of the License at15 *16 *     http://www.apache.org/licenses/LICENSE-2.017 *18 * Unless required by applicable law or agreed to in writing, software19 * distributed under the License is distributed on an "AS IS" BASIS,20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.21 * See the License for the specific language governing permissions and22 * limitations under the License.23 */24class PipeTransport {25  constructor(pipeWrite, pipeRead) {26    this._pipeWrite = void 0;27    this._pendingMessage = '';28    this._waitForNextTask = (0, _utils.makeWaitForNextTask)();29    this._closed = false;30    this.onmessage = void 0;31    this.onclose = void 0;32    this._pipeWrite = pipeWrite;33    pipeRead.on('data', buffer => this._dispatch(buffer));34    pipeRead.on('close', () => {35      this._closed = true;36      if (this.onclose) this.onclose.call(null);37    });38    pipeRead.on('error', e => _debugLogger.debugLogger.log('error', e));39    pipeWrite.on('error', e => _debugLogger.debugLogger.log('error', e));40    this.onmessage = undefined;41    this.onclose = undefined;42  }43  send(message) {44    if (this._closed) throw new Error('Pipe has been closed');45    this._pipeWrite.write(JSON.stringify(message));46    this._pipeWrite.write('\0');47  }48  close() {49    throw new Error('unimplemented');50  }51  _dispatch(buffer) {52    let end = buffer.indexOf('\0');53    if (end === -1) {54      this._pendingMessage += buffer.toString();55      return;56    }57    const message = this._pendingMessage + buffer.toString(undefined, 0, end);58    this._waitForNextTask(() => {59      if (this.onmessage) this.onmessage.call(null, JSON.parse(message));60    });61    let start = end + 1;62    end = buffer.indexOf('\0', start);63    while (end !== -1) {64      const message = buffer.toString(undefined, start, end);65      this._waitForNextTask(() => {66        if (this.onmessage) this.onmessage.call(null, JSON.parse(message));67      });68      start = end + 1;69      end = buffer.indexOf('\0', start);70    }71    this._pendingMessage = buffer.toString(undefined, start);72  }73}...

Using AI Code Generation

1const { makeWaitForNextTask } = require('@playwright/test/lib/utils/stackTrace');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4  await page.click('text=Get started');5  await page.waitForSelector('text=Install with npm');6  await page.click('text=Install with npm');7  await page.waitForSelector('text=Playwright is a Node library');8  await makeWaitForNextTask();9  await page.click('text=Playwright is a Node library');10  await page.waitForSelector('text=Playwright is a Node library');11  await makeWaitForNextTask();12  await page.click('text=Playwright is a Node library');13  await page.waitForSelector('text=Playwright is a Node library');14  await makeWaitForNextTask();15  await page.click('text=Playwright is a Node library');16  await page.waitForSelector('text=Playwright is a Node library');17  await makeWaitForNextTask();18  await page.click('text=Playwright is a Node library');19  await page.waitForSelector('text=Playwright is a Node library');20  await makeWaitForNextTask();21  await page.click('text=Playwright is a Node library');22  await page.waitForSelector('text=Playwright is a Node library');23});24  Error: Protocol error (Runtime.callFunctionOn): Cannot find context with specified id

Using AI Code Generation

1const { makeWaitForNextTask } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const waitForNextTask = makeWaitForNextTask();3await waitForNextTask();4const { makeWaitForNextTask } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');5const waitForNextTask = makeWaitForNextTask();6await waitForNextTask();7await page.textContent('text=Hello World');

Using AI Code Generation

1const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');2const waitForNextTask = makeWaitForNextTask();3await waitForNextTask();4await waitForNextTask();5await waitForNextTask();6const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');7const waitForNextTask = makeWaitForNextTask();8await waitForNextTask();9await waitForNextTask();10await waitForNextTask();11const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');12const waitForNextTask = makeWaitForNextTask();13await waitForNextTask();14await waitForNextTask();15await waitForNextTask();16const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');17const waitForNextTask = makeWaitForNextTask();18await waitForNextTask();19await waitForNextTask();20await waitForNextTask();21const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');22const waitForNextTask = makeWaitForNextTask();23await waitForNextTask();24await waitForNextTask();25await waitForNextTask();26const { makeWaitForNextTask } = require('playwright/lib/utils/stackTrace');

Using AI Code Generation

1const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');2const waitForNextTask = makeWaitForNextTask();3await waitForNextTask();4const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');5const waitForNextTask = makeWaitForNextTask();6await waitForNextTask();7const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');8const waitForNextTask = makeWaitForNextTask();9await waitForNextTask();10const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');11const waitForNextTask = makeWaitForNextTask();12await waitForNextTask();13const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');14const waitForNextTask = makeWaitForNextTask();15await waitForNextTask();16const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');17const waitForNextTask = makeWaitForNextTask();18await waitForNextTask();19const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');20const waitForNextTask = makeWaitForNextTask();21await waitForNextTask();22const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');23const waitForNextTask = makeWaitForNextTask();24await waitForNextTask();25const { makeWaitForNextTask } = require('@playwright/test/lib/server/frames');26const waitForNextTask = makeWaitForNextTask();27await waitForNextTask();

Using AI Code Generation

1const { makeWaitForNextTask } = require('playwright/lib/utils/progress');2const waitForNextTask = makeWaitForNextTask();3await waitForNextTask();4await waitForNextTask();5await waitForNextTask();6await waitForNextTask();7await waitForNextTask();8const { makeWaitForNextTask } = require('playwright/lib/utils/progress');9const waitForNextTask = makeWaitForNextTask();10await waitForNextTask();11await waitForNextTask();12await waitForNextTask();13await waitForNextTask();14await waitForNextTask();15The makeWaitForNextTask() method is used to create a new instance of the waitForNextTask() method. This method is used to wait for the next task to be executed on the event loop. This method

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