Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use evalOnSelectorAllAndWaitForSignals method in Playwright Internal

Best JavaScript code snippet using playwright-internal

frameDispatcher.js

Source:frameDispatcher.js

...139  }140  async evalOnSelectorAll(params, metadata) {141    return {142      value: (0, _jsHandleDispatcher.serializeResult)(143        await this._frame.evalOnSelectorAllAndWaitForSignals(144          params.selector,145          params.expression,146          params.isFunction,147          (0, _jsHandleDispatcher.parseArgument)(params.arg)148        )149      )150    }151  }152  async querySelector(params, metadata) {153    return {154      element: _elementHandlerDispatcher.ElementHandleDispatcher.fromNullable(155        this._scope,156        await this._frame.querySelector(params.selector, params)157      )...

elementHandlerDispatcher.js

Source:elementHandlerDispatcher.js

...184    };185  }186  async evalOnSelectorAll(params, metadata) {187    return {188      value: (0, _jsHandleDispatcher.serializeResult)(await this._elementHandle.evalOnSelectorAllAndWaitForSignals(params.selector, params.expression, params.isFunction, (0, _jsHandleDispatcher.parseArgument)(params.arg)))189    };190  }191  async waitForElementState(params, metadata) {192    await this._elementHandle.waitForElementState(metadata, params.state, params);193  }194  async waitForSelector(params, metadata) {195    return {196      element: ElementHandleDispatcher.fromNullable(this._scope, await this._elementHandle.waitForSelector(metadata, params.selector, params))197    };198  }199}...

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.evaluate(async () => {7    window['evalOnSelectorAllAndWaitForSignals'] = async (selector, expression, options) => {8      const results = [];9      const nodes = document.querySelectorAll(selector);10      for (const node of nodes) {11        results.push(await expression(node, options));12      }13      return results;14    };15  });16  const results = await page.evaluate(async () => {17    const results = await window['evalOnSelectorAllAndWaitForSignals']('a', (node, options) => {18      return new Promise((resolve) => {19        node.addEventListener('click', (event) => {20          console.log('click event');21          resolve(event);22        });23      });24    });25    return results;26  });27  console.log(results);28  await browser.close();29})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.waitForSelector('text=Google Search');6  await page.evalOnSelectorAllAndWaitForSignals('text=Google Search', 'click', 'signal1');7  await page.waitForSelector('text=I’m Feeling Lucky');8  await page.evalOnSelectorAllAndWaitForSignals('text=I’m Feeling Lucky', 'click', 'signal2');9  await page.waitForSelector('text=About');10  await page.evalOnSelectorAllAndWaitForSignals('text=About', 'click', 'signal3');11  await page.waitForSelector('text=Google');12  await page.evalOnSelectorAllAndWaitForSignals('text=Google', 'click', 'signal4');13  await page.waitForSelector('text=Advertising');14  await page.evalOnSelectorAllAndWaitForSignals('text=Advertising', 'click', 'signal5');15  await page.waitForSelector('text=Business');16  await page.evalOnSelectorAllAndWaitForSignals('text=Business', 'click', 'signal6');17  await page.waitForSelector('text=How Search works');18  await page.evalOnSelectorAllAndWaitForSignals('text=How Search works', 'click', 'signal7');19  await page.waitForSelector('text=Privacy');20  await page.evalOnSelectorAllAndWaitForSignals('text=Privacy', 'click', 'signal8');21  await page.waitForSelector('text=Terms');22  await page.evalOnSelectorAllAndWaitForSignals('text=Terms', 'click', 'signal9');23  await page.waitForSelector('text=Settings');24  await page.evalOnSelectorAllAndWaitForSignals('text=Settings', 'click', 'signal10');25  await page.waitForSelector('text=Tools');26  await page.evalOnSelectorAllAndWaitForSignals('text=Tools', 'click', 'signal11');27  await page.waitForSelector('text=About Google');28  await page.evalOnSelectorAllAndWaitForSignals('text=About Google', 'click', 'signal12');29  await page.waitForSelector('text=Advertising');30  await page.evalOnSelectorAllAndWaitForSignals('text=Advertising', 'click', 'signal13');31  await page.waitForSelector('text=Business');32  await page.evalOnSelectorAllAndWaitForSignals('text=Business',

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.waitForSelector('input[name="q"]');6  const result = await page.evaluate(async () => {7    const { evalOnSelectorAllAndWaitForSignals } = window['playwright'];8    const results = await evalOnSelectorAllAndWaitForSignals('div', (divs, signal) => {9      return new Promise((resolve) => {10        const results = [];11        let counter = 0;12        for (const div of divs) {13          counter++;14          div.addEventListener('click', () => {15            results.push(div.textContent);16            counter--;17            if (counter === 0)18              resolve(results);19          });20          div.click();21        }22        signal.addEventListener('abort', () => {23          resolve(results);24        });25      });26    });27    return results;28  });29  console.log(result);30  await browser.close();31})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const result = await page.evalOnSelectorAllAndWaitForSignals('a', 'click', () => {6    return document.querySelectorAll('a').length;7  });8  console.log(result);9  await browser.close();10})();11const { helper, assert } = require('../helper');12const { JSHandle } = require('../JSHandle');13const { ElementHandle } = require('../ElementHandle');14const { TimeoutError } = require('../Errors');15const { FrameWaitForSignalsOptions } = require('../FrameManager');16const { waitForSignals } = require('./waitForSignals');17 * @param {!ElementHandle} elementHandle18 * @param {string} eventType19 * @param {function():any} expression20 * @param {!FrameWaitForSignalsOptions=} options21 * @return {!Promise<*>}22module.exports.evalOnSelectorAllAndWaitForSignals = async function evalOnSelectorAllAndWaitForSignals(elementHandle, eventType, expression, options = {}) {23  const { timeout = 30000 } = options;24  const { page } = elementHandle;25  const { frame } = elementHandle;26  const { mainFrame } = page;27  const { executionContext } = elementHandle;28  assert(mainFrame, 'waitForSignals can only work with main frame.');29  assert(frame === mainFrame, 'waitForSignals can only work with main frame.');30  const jsHandle = await executionContext.evaluateHandle(waitForSignals, elementHandle, eventType, expression, options);31  const result = await jsHandle.jsonValue();32  if (result.error)33    throw new Error(result.error);34  return result.value;35};36 * @param {!ElementHandle} elementHandle37 * @param {string} eventType38 * @param {function():any} expression39 * @param {!FrameWaitForSignalsOptions=} options40 * @return {!Promise<*>}41async function waitForSignals(elementHandle, eventType, expression, options = {}) {42  const { timeout = 30000 } = options;43  const { page } = elementHandle;44  const { frame } = element

Using AI Code Generation

1const { evalOnSelectorAllAndWaitForSignals } = require('@playwright/test/lib/evalOnSelectorAllAndWaitForSignals');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4  await evalOnSelectorAllAndWaitForSignals(page, 'input', (elements) => {5    elements.forEach(element => {6      element.value = 'test';7    });8  }, 'input');9  await page.screenshot({ path: `example.png` });10});

Using AI Code Generation

1const {evalOnSelectorAllAndWaitForSignals} = require('playwright/lib/protocol/protocol-helpers');2const {waitForSignals} = require('playwright/lib/protocol/protocol-helpers');3const {evalOnSelectorAll} = require('playwright/lib/protocol/protocol-helpers');4const {evalOnSelector} = require('playwright/lib/protocol/protocol-helpers');5const {evalOnWindow} = require('playwright/lib/protocol/protocol-helpers');6const {evalOnCallFrame} = require('playwright/lib/protocol/protocol-helpers');7const {evalOnSelector} = require('playwright/lib/protocol/protocol-helpers');8const {evalOnSelectorAll} = require('playwright/lib/protocol/protocol-helpers');9const {evalOnSelectorAllAndWaitForSignals} = require('playwright/lib/protocol/protocol-helpers');10const {waitForSignals} = require('playwright/lib/protocol/protocol-helpers');11const {evalOnSelectorAll} = require('playwright/lib/protocol/protocol-helpers');12const {evalOnSelector} = require('playwright/lib/protocol/protocol-helpers');13const {evalOnWindow} = require('playwright/lib/protocol/protocol-helpers');14const {evalOnCallFrame} = require('playwright/lib/protocol/protocol-helpers');15const {evalOnSelector} = require('playwright/lib/protocol/protocol-h

Using AI Code Generation

1const { evalOnSelectorAllAndWaitForSignals } = require('playwright');2const { Page } = require('playwright/lib/server/page');3const { ElementHandle } = require('playwright/lib/server/dom');4const { JSHandle } = require('playwright/lib/server/javascript');5const { SignalDispatcher } = require('playwright/lib/server/signalDispatcher');6const { helper } = require('playwright/lib/server/helper');7const page = new Page();8const frame = page.mainFrame();9const elementHandles = await frame.$$('div');10const signalDispatcher = new SignalDispatcher();11const signal = signalDispatcher.registerSignal('signal');12const jsHandles = elementHandles.map(handle => handle.asElement());13const result = await evalOnSelectorAllAndWaitForSignals(14  (nodes, signal) => {15    nodes.forEach(node => {16      node.addEventListener('click', () => {17        signal.dispatch('signal');18      });19    });20  },21);22await signalDispatcher.waitForSignals([result]);23console.log('done');

Using AI Code Generation

1const { page } = require('@playwright/test');2const { evalOnSelectorAllAndWaitForSignals } = require('@playwright/test/internal/evalOnSelectorAllAndWaitForSignals');3const { evalOnSelectorAll } = require('@playwright/test/internal/evalOnSelectorAll');4const fs = require('fs');5const path = require('path');6const { chromium } = require('playwright');7(async () => {8  const browser = await chromium.launch();9  const context = await browser.newContext();10  const page = await context.newPage();11  await page.click('[id="js-link-box-en"]');12  await page.waitForSelector('text="English"');13  await page.click('[id="searchInput"]');14  await page.fill('[id="searchInput"]', 'playwright');15  await page.click('[id="search-form"] >> [type="submit"]');16  await page.waitForSelector('text="Playwright"');17  await page.click('text="Playwright"');18  await page.waitForSelector('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');19  await page.click('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');20  await page.waitForSelector('text="Playwright"');21  await page.click('text="Playwright"');22  await page.waitForSelector('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');23  await page.click('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');24  await page.waitForSelector('text="Playwright"');25  await page.click('text="Playwright"');26  await page.waitForSelector('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');27  await page.click('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');28  await page.waitForSelector('text="Playwright"');29  await page.click('text="Playwright"');30  await page.waitForSelector('text="Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API."');31  await page.click('text="Playwright is a Node.js library to automate Chromium, Firefox

Using AI Code Generation

1const { _internal } = require('playwright');2const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;3const { _internal } = require('playwright');4const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;5const { _internal } = require('playwright');6const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;7const { _internal } = require('playwright');8const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;9const { _internal } = require('playwright');10const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;11const { _internal } = require('playwright');12const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;13const { _internal } = require('playwright');14const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;15const { _internal } = require('playwright');16const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;17const { _internal } = require('playwright');18const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;19const { _internal } = require('playwright');20const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;21const { _internal } = require('playwright');22const { evalOnSelectorAllAndWaitForSignals } = _internal.helpers;23const { _internal } = require('playwright');24const {

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.