How to use potentiallyUnserializableValue method in Playwright Internal

Best JavaScript code snippet using playwright-internal

crExecutionContext.js

Source: crExecutionContext.js Github

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...102 }103 return result;104 }105 createHandle(context, remoteObject) {106 return new js.JSHandle(context, remoteObject.subtype || remoteObject.type, renderPreview(remoteObject), remoteObject.objectId, potentiallyUnserializableValue(remoteObject));107 }108 async releaseHandle(objectId) {109 await (0, _crProtocolHelper.releaseObject)(this._client, objectId);110 }111}112exports.CRExecutionContext = CRExecutionContext;113function rewriteError(error) {114 if (error.message.includes('Object reference chain is too long')) return {115 result: {116 type: 'undefined'117 }118 };119 if (error.message.includes('Object couldn\'t be returned by value')) return {120 result: {121 type: 'undefined'122 }123 };124 if (error instanceof TypeError && error.message.startsWith('Converting circular structure to JSON')) (0, _stackTrace.rewriteErrorMessage)(error, error.message + ' Are you passing a nested JSHandle?');125 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) throw new Error('Execution context was destroyed, most likely because of a navigation.');126 throw error;127}128function potentiallyUnserializableValue(remoteObject) {129 const value = remoteObject.value;130 const unserializableValue = remoteObject.unserializableValue;131 return unserializableValue ? js.parseUnserializableValue(unserializableValue) : value;132}133function renderPreview(object) {134 if (object.type === 'undefined') return 'undefined';135 if ('value' in object) return String(object.value);136 if (object.unserializableValue) return String(object.unserializableValue);137 if (object.description === 'Object' && object.preview) {138 const tokens = [];139 for (const {140 name,141 value142 } of object.preview.properties) tokens.push(`${name}: ${value}`);...

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ffExecutionContext.js

Source: ffExecutionContext.js Github

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...90 for (const property of response.properties) result.set(property.name, context.createHandle(property.value));91 return result;92 }93 createHandle(context, remoteObject) {94 return new js.JSHandle(context, remoteObject.subtype || remoteObject.type || '', renderPreview(remoteObject), remoteObject.objectId, potentiallyUnserializableValue(remoteObject));95 }96 async releaseHandle(objectId) {97 await this._session.send('Runtime.disposeObject', {98 executionContextId: this._executionContextId,99 objectId100 });101 }102}103exports.FFExecutionContext = FFExecutionContext;104function checkException(exceptionDetails) {105 if (!exceptionDetails) return;106 if (exceptionDetails.value) throw new js.JavaScriptErrorInEvaluate(JSON.stringify(exceptionDetails.value));else throw new js.JavaScriptErrorInEvaluate(exceptionDetails.text + (exceptionDetails.stack ? '\n' + exceptionDetails.stack : ''));107}108function rewriteError(error) {109 if (error.message.includes('cyclic object value') || error.message.includes('Object is not serializable')) return {110 result: {111 type: 'undefined',112 value: undefined113 }114 };115 if (error instanceof TypeError && error.message.startsWith('Converting circular structure to JSON')) (0, _stackTrace.rewriteErrorMessage)(error, error.message + ' Are you passing a nested JSHandle?');116 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) throw new Error('Execution context was destroyed, most likely because of a navigation.');117 throw error;118}119function potentiallyUnserializableValue(remoteObject) {120 const value = remoteObject.value;121 const unserializableValue = remoteObject.unserializableValue;122 return unserializableValue ? js.parseUnserializableValue(unserializableValue) : value;123}124function renderPreview(object) {125 if (object.type === 'undefined') return 'undefined';126 if (object.unserializableValue) return String(object.unserializableValue);127 if (object.type === 'symbol') return 'Symbol()';128 if (object.subtype === 'regexp') return 'RegExp';129 if (object.subtype === 'weakmap') return 'WeakMap';130 if (object.subtype === 'weakset') return 'WeakSet';131 if (object.subtype) return object.subtype[0].toUpperCase() + object.subtype.slice(1);132 if ('value' in object) return String(object.value);133}

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wkExecutionContext.js

Source: wkExecutionContext.js Github

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...106 return result;107 }108 createHandle(context, remoteObject) {109 const isPromise = remoteObject.className === 'Promise';110 return new js.JSHandle(context, isPromise ? 'promise' : remoteObject.subtype || remoteObject.type, renderPreview(remoteObject), remoteObject.objectId, potentiallyUnserializableValue(remoteObject));111 }112 async releaseHandle(objectId) {113 await this._session.send('Runtime.releaseObject', {114 objectId115 });116 }117}118exports.WKExecutionContext = WKExecutionContext;119function potentiallyUnserializableValue(remoteObject) {120 const value = remoteObject.value;121 const isUnserializable = remoteObject.type === 'number' && ['NaN', '-Infinity', 'Infinity', '-0'].includes(remoteObject.description);122 return isUnserializable ? js.parseUnserializableValue(remoteObject.description) : value;123}124function rewriteError(error) {125 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) return new Error('Execution context was destroyed, most likely because of a navigation.');126 return error;127}128function renderPreview(object) {129 if (object.type === 'undefined') return 'undefined';130 if ('value' in object) return String(object.value);131 if (object.description === 'Object' && object.preview) {132 const tokens = [];133 for (const {...

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const value = await page.evaluateHandle(() => {6 const a = { foo: 'bar' };7 a.circular = a;8 return a;9 });10 console.log(await page.evaluate(value => value.foo, value));11 console.log(await page.evaluate(value => value.circular.foo, value));12 await browser.close();13})();14Uncaught exception with value: {"foo":"bar","circular":"<circular>"}15Uncaught exception with value: {"foo":"bar","circular":"<circular>"}16Uncaught exception with value: {"foo":"bar","circular":"<circular>"}

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Using AI Code Generation

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1const {chromium} = require('playwright');2const browser = await chromium.launch();3const context = await browser.newContext();4const page = await context.newPage();5const value = await page.evaluate(() => {6 return {a: 1, b: 2};7});8await page.evaluate((value) => {9 console.log(value);10}, value);11const {chromium} = require('playwright');12const browser = await chromium.launch();13const context = await browser.newContext();14const page = await context.newPage();15const value = await page.evaluate(() => {16 return {a: 1, b: 2};17});18await page.evaluate((value) => {19 console.log(value);20}, await page.internal.potentiallyUnserializableValue(value));

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Using AI Code Generation

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1const {chromium, webkit, firefox, devices} = require('playwright');2const path = require('path');3(async () => {4 const browser = await chromium.launch({5 });6 const page = await browser.newPage();7 await page.screenshot({path: 'example.png'});8 await browser.close();9})();10const {chromium, webkit, firefox, devices} = require('playwright');11const path = require('path');12module.exports = {13 use: {14 viewport: { width: 1280, height: 720 },15 launchOptions: {16 },17 browserOptions: {

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Using AI Code Generation

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1const playwright = require("playwright");2const { serialize } = require("playwright/​lib/​server/​serializers");3(async () => {4 const browser = await playwright.chromium.launch({ headless: false });5 const page = await browser.newPage();6 const userAgent = await page.evaluate(() => navigator.userAgent);7 const serialized = await serialize(userAgent);8 console.log(serialized);9 await browser.close();10})();11{ type: 'object',12 objectId: '{"injectedScriptId":1,"id":1}' }13JSON.stringify(userAgent)14"Mozilla/​5.0 (X11; Linux x86_64) AppleWebKit/​537.36 (KHTML, like Gecko) Chrome/​90.0.4430.85 Safari/​537.36"

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Using AI Code Generation

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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 const value = await page.evaluate(() => {7 return window;8 });9 const isSerializable = await page.evaluateHandle(() => {10 return window.__playwright__internal__objectFactory__.potentiallyUnserializableValue(value);11 });12 console.log(isSerializable);13 await browser.close();14})();15const puppeteer = require('puppeteer');16const { serialize } = require('puppeteer/​lib/​cjs/​puppeteer/​common/​JSHandle.js');17(async () => {18 const browser = await puppeteer.launch();19 const page = await browser.newPage();20 const value = await page.evaluate(() => {21 return window;22 });23 const isSerializable = await serialize(value);24 console.log(isSerializable);25 await browser.close();26})();27const { Builder, By, Key, until } = require('selenium-webdriver');28const { serialize } = require('selenium-webdriver/​lib/​webdriver.js');29(async function example() {30 let driver = await new Builder().forBrowser('chrome').build();31 try {32 const value = await driver.executeScript(() => {33 return window;34 });35 const isSerializable = await serialize(value);36 console.log(isSerializable);37 } finally {38 await driver.quit();39 }40})();

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Using AI Code Generation

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1const playwright = require('playwright');2const { chromium } = playwright;3(async () => {4 const value = await chromium.internal.potentiallyUnserializableValue({ foo: 'bar' });5 console.log(value);6})();7{8}9 at Object.<anonymous> (/​Users/​username/​Downloads/​test.js:6:39)10 at Module._compile (internal/​modules/​cjs/​loader.js:999:30)11 at Object.Module._extensions..js (internal/​modules/​cjs/​loader.js:1027:10)12 at Module.load (internal/​modules/​cjs/​loader.js:863:32)13 at Function.Module._load (internal/​modules/​cjs/​loader.js:708:14)14 at Function.executeUserEntryPoint [as runMain] (internal/​modules/​run_main.js:60:12)15const playwright = require('playwright');16const { chromium } = playwright;17(async () => {18 const value = await chromium.internal.potentiallyUnserializableValue({ foo: 'bar' });19 console.log(value);20})();21const playwright = require('playwright');22const { chromium } = playwright;23(async () => {24 const value = await chromium.internal.potentiallyUnserializableValue({ foo: 'bar' });25 console.log(value);26})();27const playwright = require('playwright');28const { chromium } = playwright;29(async () => {

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Using AI Code Generation

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1const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');2const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');3const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');4const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');5const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');6const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');7const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');8const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');9const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');10const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');11const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');12const { serialize } = require('playwright/​lib/​server/​serializers/​serializers');

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {getTestState} = require('@jest/​globals');3const {chromium} = require('playwright');4const {getTestState} = require('@jest/​globals');5let browser;6let page;7beforeAll(async () => {8 browser = await chromium.launch({ headless: false });9 const context = await browser.newContext();10 page = await context.newPage();11});12afterAll(async () => {13 await browser.close();14});15test('test', async () => {16 await page.waitForSelector('text=Welcome to React');17 const element = await page.$('text=Welcome to React');18 const value = await element.evaluate(element => element.textContent);19 expect(value).toBe('Welcome to React');20});

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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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