How to use transformHook method in Playwright Internal

Best JavaScript code snippet using playwright-internal

database.js

Source: database.js Github

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...535 * @param {Context} ctx536 * @param {*} docs537 * @returns538 */​539 async transformHook(ctx, docs) {540 if (ctx.action.rawName == "list") {541 const res = await this.transformDocuments(ctx, ctx.params, docs[0]);542 return [res, docs[1]];543 }544 return await this.transformDocuments(ctx, ctx.params, docs);545 },546 /​**547 *548 *549 * @param {Context} ctx550 * @param {*} [docs, total]551 * @returns552 */​553 async pagingHook(ctx, [docs, total]) {...

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guild.hooks.js

Source: guild.hooks.js Github

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...153 patch: [],154 remove: [],155 },156 after: {157 all: [transformHook()],158 find: [],159 get: [],160 create: [],161 update: [],162 patch: [],163 remove: [],164 },165 error: {166 all: [],167 find: [],168 get: [],169 create: [],170 update: [],171 patch: [],...

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plan.hooks.js

Source: plan.hooks.js Github

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...90 patch: [],91 remove: [],92 },93 after: {94 all: [transformHook()],95 find: [],96 get: [],97 create: [],98 update: [],99 patch: [],100 remove: [],101 },102 error: {103 all: [],104 find: [],105 get: [],106 create: [],107 update: [],108 patch: [],...

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character.hooks.js

Source: character.hooks.js Github

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...53 patch: [],54 remove: [],55 },56 after: {57 all: [transformHook()],58 find: [],59 get: [],60 create: [],61 update: [],62 patch: [],63 remove: [],64 },65 error: {66 all: [],67 find: [],68 get: [],69 create: [],70 update: [],71 patch: [],...

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index.js

Source: index.js Github

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1/​**2 * Created by qiqf on 2021/​10/​123 */​4import { transformHook } from "./​hook";5import { checkType } from "./​util";6import { PREFECTURE } from "./​constant";7class Adaptor {8 /​**9 * @param {Object} options10 * @param {string[]?} options.data11 * @param {function?} options.transform12 */​13 constructor(options = {}) {14 if (options.data) {15 checkType("constructor", options.data);16 }17 this.data = options.data || [];18 this.transformHook = options.transform || transformHook;19 }20 /​**21 * @param s122 * @param s223 * @param s324 * @returns {*[]}25 * @private26 */​27 _isMunicipality([s1, s2, s3]) {28 return s2 === PREFECTURE ? [s1, s3] : s1 === s2 ? [s2, s3] : [s1, s2, s3];29 }30 /​**31 * @param {string[]} data32 */​33 init(data) {34 checkType("init", data);35 this.data = data;36 }37 /​**38 *39 * @param {string[]} values40 * @returns {*|[]}41 */​42 transform(values) {43 checkType("transform", values);44 return this.transformHook.call(45 this,46 this._isMunicipality(values),47 this.data48 );49 }50}...

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transform.js

Source: transform.js Github

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...8 return data instanceof Array ?9 mapAndTransform(data, model) :10 transform(data, model)11}12function transformHook(model) {13 return function (hookDetails) {14 const property = hookDetails.type === 'before' ? 'data' : 'result';15 let data = hookDetails[property];16 const handledData = handleData(data, model);17 hookDetails[property] = handledData;18 return hookDetails;19 }20}...

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hook.js

Source: hook.js Github

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...9 */​10export const transformHook = (v, c, i = 0) => {11 if (!c || c.length <= 0) return v.slice(i);12 const data = find(c, (_) => _.name === v[i]);13 return data ? [data.number, ...transformHook(v, data.children, ++i)] : [];14};15function find(list, f) {16 return list.filter(f)[0];...

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uni.config.js

Source: uni.config.js Github

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1const {resolve}=require('path');2module.exports = {3 publicPath:'pages/​',4 includes: [],5 rule: {6 },7 transformHook:function(pagesStr,extractStr,next){8 next(extractStr);9 },10 nodemon:{11 watch:[12 resolve(__dirname, './​config/​*'),13 ],14 verbose: true,15 }...

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Using AI Code Generation

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1const { chromium } = require('playwright');2const fs = require('fs');3const path = require('path');4async function main() {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const script = fs.readFileSync(path.join(__dirname, 'transformHook.js'), 'utf8');9 await page.evaluate(script);10 await page.screenshot({ path: 'google.png' });11 await browser.close();12}13main();14(async () => {15 const { transformHook } = require('playwright/​lib/​server/​trace/​recorder/​recorderApp');16 const { context } = require('playwright/​lib/​server/​trace/​recorder/​traceModel');17 transformHook(async (trace, context) => {18 for (const action of trace.actions) {19 if (action.name === 'gotoURL') {20 }21 }22 return trace;23 });24})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { transformHook } = require('playwright/​lib/​transformHook');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const handle = await page.$('text=Get started');7 const text = await page.evaluate(element => element.textContent, handle);8 console.log(text);9 await browser.close();10})();11const { chromium } = require('playwright');12const { transformHook } = require('playwright/​lib/​transformHook');13(async () => {14 const browser = await chromium.launch();15 const page = await browser.newPage();16 const handle = await page.$('text=Get started');17 const text = await page.evaluate(element => element.textContent, handle);18 console.log(text);19 await browser.close();20})();21const { chromium } = require('playwright');22const { transformHook } = require('playwright/​lib/​transformHook');23(async () => {24 const browser = await chromium.launch();25 const page = await browser.newPage();26 const handle = await page.$('text=Get started');27 const text = await page.evaluate(element => element.textContent, handle);28 console.log(text);29 await browser.close();30})();31const { chromium } = require('playwright');32const { transformHook } = require('playwright/​lib/​transformHook');33(async () => {34 const browser = await chromium.launch();35 const page = await browser.newPage();36 const handle = await page.$('text=Get started');37 const text = await page.evaluate(element => element.textContent, handle);38 console.log(text);39 await browser.close();40})();41const { chromium } = require('playwright');42const { transform

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Using AI Code Generation

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1const { transformHook } = require('playwright/​lib/​utils/​transformHook');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const modifiedPage = transformHook(page, 'method', async (method, ...args) => {8 console.log('method called: ', method);9 return await method(...args);10 });11 await browser.close();12})();

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Using AI Code Generation

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1const { transformHook } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');2const { Page } = require('playwright/​lib/​server/​page');3const { Frame } = require('playwright/​lib/​server/​frame');4const page = new Page();5const frame = new Frame();6const transformedCode = transformHook(page, frame, 'click', 'div');7console.log(transformedCode);8const { test, expect } = require('@playwright/​test');9const { transformHook } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');10const { Page } = require('playwright/​lib/​server/​page');11const { Frame } = require('playwright/​lib/​server/​frame');12test('My Test', async ({ page }) => {13 const transformedCode = await transformHook(page, page.mainFrame(), 'click', 'div');14 console.log(transformedCode);15 await page.click('div');16});17const { test, expect } = require('@playwright/​test');18const { transformHook } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');19const { Page } = require('playwright/​lib/​server/​page');20const { Frame } = require('playwright/​lib/​server/​frame');21test('My Test', async ({ page }) => {22 const transformedCode = await transformHook(page, page.mainFrame(), 'click', 'div');23 console.log(transformedCode);24 await page.click('div');25});26await page.click('div');

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Using AI Code Generation

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1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch();4 const context = await browser.newContext({5 transformHook: (code) => {6 const { chromium, webkit, firefox } = 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.screenshot({ path: 'example.png' });12 await browser.close();13 })();14 `;15 },16 });17 const page = await context.newPage();18 await page.screenshot({ path: 'example.png' });19 await browser.close();20})();21const playwright = require('playwright');22(async () => {23 const browser = await playwright['chromium'].launch();24 const context = await browser.newContext({25 transformHook: (code) => {26 const { chromium, webkit, firefox } = require('playwright');27 (async () => {28 const browser = await chromium.launch();29 const context = await browser.newContext();30 const page = await context.newPage();31 await page.screenshot({ path: 'example.png' });32 await browser.close();33 })();34 `;35 },36 });37 const page = await context.newPage();38 await page.screenshot({ path: 'example.png' });39 await browser.close();40})();41const playwright = require('playwright');42(async () => {43 const browser = await playwright['chromium'].launch();44 const context = await browser.newContext({45 transformHook: (code) => {46 const { chromium, webkit, firefox } = require('playwright');47 (async () => {48 const browser = await chromium.launch();49 const context = await browser.newContext();50 const page = await context.newPage();

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Using AI Code Generation

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1const { transformHook } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');2const { Page } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');3transformHook(Page, 'click', function (selector, options) {4 return {5 };6});7transformHook(Page, 'goto', function (url, options) {8 return {9 };10});11transformHook(Page, 'waitForSelector', function (selector, options) {12 return {13 };14});15transformHook(Page, 'waitForTimeout', function (timeout) {16 return {17 };18});19transformHook(Page, 'fill', function (selector, value, options) {20 return {21 };22});23transformHook(Page, 'check', function (selector, options) {24 return {25 };26});27transformHook(Page, 'uncheck', function (selector, options) {28 return {29 };30});31transformHook(Page, 'selectOption', function (selector, values, options) {32 return {33 };34});35transformHook(Page, 'click', function (selector, options) {36 return {37 };38});39transformHook(Page, 'press', function (selector, key, options) {40 return {

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Using AI Code Generation

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1const { transformHook } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');2const { Page } = require('playwright');3const { ElementHandle } = require('playwright/​lib/​server/​dom');4const page = new Page();5const elementHandle = new ElementHandle(page, 'div');6const result = transformHook('click', elementHandle, {});7console.log(result);8{9}10{11}

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {transformHook} = require('playwright/​lib/​server/​network');3(async () => {4 const browser = await chromium.launch({ headless: false });5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.route('**', route => {8 route.fulfill({9 });10 });11 await page.screenshot({ path: 'google.png' });12 await browser.close();13})();14const {chromium} = require('playwright');15const {transformHook} = require('playwright/​lib/​server/​network');16(async () => {17 const browser = await chromium.launch({ headless: false });18 const context = await browser.newContext();19 const page = await context.newPage();20 await page.route('**', route => {21 route.fulfill({22 });23 });24 await page.screenshot({ path: 'google.png' });25 await browser.close();26})();27const {chromium} = require('playwright');28const {transformHook} = require('playwright/​lib/​server/​network');29(async () => {30 const browser = await chromium.launch({ headless: false });31 const context = await browser.newContext();32 const page = await context.newPage();33 await page.route('**', route => {34 route.fulfill({35 });36 });37 await page.screenshot({ path: 'google.png' });38 await browser.close();39})();40const {chromium} = require('playwright');41const {transformHook} = require('playwright

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Using AI Code Generation

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1const { chromium } = require('playwright');2const path = require('path');3const scriptToInject = path.join(__dirname, 'injected-script.js');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext({7 transformHook: (source, name) => {8 if (name === scriptToInject) {9 return source.replace('console.log("Hello from injected script")', 'console.log("Hello from modified injected script")');10 }11 return source;12 }13 });14 const page = await context.newPage();15 await page.addInitScript({ path: scriptToInject });16 await browser.close();17})();18console.log("Hello from injected script");

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StackOverFlow community discussions

Questions
Discussion

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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