Best JavaScript code snippet using playwright-internal
serializers.js
Source: serializers.js
...38}39function parseError(error) {40 if (!error.error) {41 if (error.value === undefined) throw new Error('Serialized error must have either an error or a value');42 return parseSerializedValue(error.value, undefined);43 }44 if (error.error.name === 'TimeoutError') {45 const e = new _errors.TimeoutError(error.error.message);46 e.stack = error.error.stack || '';47 return e;48 }49 const e = new Error(error.error.message);50 e.stack = error.error.stack || '';51 e.name = error.error.name;52 return e;53}54function parseSerializedValue(value, handles) {55 if (value.n !== undefined) return value.n;56 if (value.s !== undefined) return value.s;57 if (value.b !== undefined) return value.b;58 if (value.v !== undefined) {59 if (value.v === 'undefined') return undefined;60 if (value.v === 'null') return null;61 if (value.v === 'NaN') return NaN;62 if (value.v === 'Infinity') return Infinity;63 if (value.v === '-Infinity') return -Infinity;64 if (value.v === '-0') return -0;65 }66 if (value.d !== undefined) return new Date(value.d);67 if (value.r !== undefined) return new RegExp(value.r.p, value.r.f);68 if (value.a !== undefined) return value.a.map(a => parseSerializedValue(a, handles));69 if (value.o !== undefined) {70 const result = {};71 for (const {72 k,73 v74 } of value.o) result[k] = parseSerializedValue(v, handles);75 return result;76 }77 if (value.h !== undefined) {78 if (handles === undefined) throw new Error('Unexpected handle');79 return handles[value.h];80 }81 throw new Error('Unexpected value');82}83function serializeValue(value, handleSerializer, visited) {84 const handle = handleSerializer(value);85 if ('fallThrough' in handle) value = handle.fallThrough;else return handle;86 if (visited.has(value)) throw new Error('Argument is a circular structure');87 if (typeof value === 'symbol') return {88 v: 'undefined'...
jsHandleDispatcher.js
Source: jsHandleDispatcher.js
1"use strict";2Object.defineProperty(exports, "__esModule", {3 value: true4});5exports.JSHandleDispatcher = void 0;6exports.parseArgument = parseArgument;7exports.parseValue = parseValue;8exports.serializeResult = serializeResult;9var _dispatcher = require("./dispatcher");10var _elementHandlerDispatcher = require("./elementHandlerDispatcher");11var _serializers = require("../protocol/serializers");12/**13 * Copyright (c) Microsoft Corporation.14 *15 * Licensed under the Apache License, Version 2.0 (the "License");16 * you may not use this file except in compliance with the License.17 * You may obtain a copy of the License at18 *19 * http://www.apache.org/licenses/LICENSE-2.020 *21 * Unless required by applicable law or agreed to in writing, software22 * distributed under the License is distributed on an "AS IS" BASIS,23 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.24 * See the License for the specific language governing permissions and25 * limitations under the License.26 */27class JSHandleDispatcher extends _dispatcher.Dispatcher {28 constructor(scope, jsHandle) {29 // Do not call this directly, use createHandle() instead.30 super(scope, jsHandle, jsHandle.asElement() ? 'ElementHandle' : 'JSHandle', {31 preview: jsHandle.toString()32 });33 this._type_JSHandle = true;34 jsHandle._setPreviewCallback(preview => this._dispatchEvent('previewUpdated', {35 preview36 }));37 }38 async evaluateExpression(params) {39 return {40 value: serializeResult(await this._object.evaluateExpressionAndWaitForSignals(params.expression, params.isFunction, true41 /* returnByValue */42 , parseArgument(params.arg)))43 };44 }45 async evaluateExpressionHandle(params) {46 const jsHandle = await this._object.evaluateExpressionAndWaitForSignals(params.expression, params.isFunction, false47 /* returnByValue */48 , parseArgument(params.arg));49 return {50 handle: _elementHandlerDispatcher.ElementHandleDispatcher.fromJSHandle(this._scope, jsHandle)51 };52 }53 async getProperty(params) {54 const jsHandle = await this._object.getProperty(params.name);55 return {56 handle: _elementHandlerDispatcher.ElementHandleDispatcher.fromJSHandle(this._scope, jsHandle)57 };58 }59 async getPropertyList() {60 const map = await this._object.getProperties();61 const properties = [];62 for (const [name, value] of map) properties.push({63 name,64 value: _elementHandlerDispatcher.ElementHandleDispatcher.fromJSHandle(this._scope, value)65 });66 return {67 properties68 };69 }70 async jsonValue() {71 return {72 value: serializeResult(await this._object.jsonValue())73 };74 }75 async dispose() {76 await this._object.dispose();77 }78} // Generic channel parser converts guids to JSHandleDispatchers,79// and this function takes care of coverting them into underlying JSHandles.80exports.JSHandleDispatcher = JSHandleDispatcher;81function parseArgument(arg) {82 return (0, _serializers.parseSerializedValue)(arg.value, arg.handles.map(a => a._object));83}84function parseValue(v) {85 return (0, _serializers.parseSerializedValue)(v, []);86}87function serializeResult(arg) {88 return (0, _serializers.serializeValue)(arg, value => ({89 fallThrough: value90 }), new Set());...
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/client/serializers');2const value = await page.evaluate(() => {3 return {4 c: {5 }6 };7});8const parsedValue = parseSerializedValue(value);9console.log(parsedValue);10const { parseSerializedValue } = require('playwright/lib/client/serializers');11const value = await page.evaluate(() => {12 return new Set([1, 2, 3]);13});14const parsedValue = parseSerializedValue(value);15console.log(parsedValue);16const { parseSerializedValue } = require('playwright/lib/client/serializers');17const value = await page.evaluate(() => {18 return new Map([['a', 1], ['b', 2], ['c', 3]]);19});20const parsedValue = parseSerializedValue(value);21console.log(parsedValue);22const { parseSerializedValue } = require('playwright/lib/client/serializers');23const value = await page.evaluate(() => {24 return new Date('2020-01-01');25});26const parsedValue = parseSerializedValue(value);27console.log(parsedValue);28const { parseSerializedValue } = require('playwright/lib/client/serializers');29const value = await page.evaluate(() => {30 return new Error('This is an error');31});32const parsedValue = parseSerializedValue(value);33console.log(parsedValue);
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/client/serializers');2const result = parseSerializedValue('{"type":"object","value":{"foo":"bar"}}');3console.log(result);4const { parseSerializedValue } = require('playwright/lib/client/serializers');5const result = parseSerializedValue('{"type":"object","value":{"foo":{"type":"object","value":{"bar":"baz"}}}}');6console.log(result);7const { parseSerializedValue } = require('playwright/lib/client/serializers');8const result = parseSerializedValue('{"type":"object","value":{"foo":{"type":"object","value":{"bar":{"type":"object","value":{"baz":"qux"}}}}}}');9console.log(result);10const { parseSerializedValue } = require('playwright/lib/client/serializers');11const result = parseSerializedValue('{"type":"object","value":{"foo":{"type":"object","value":{"bar":{"type":"object","value":{"baz":{"type":"object","value":{"qux":"quux"}}}}}}}}');12console.log(result);13const { parseSerializedValue } = require('playwright/lib/client/serializers');14const result = parseSerializedValue('{"type":"object","value":{"foo":{"type":"object","value":{"bar":{"type":"object","value":{"baz":{"type":"object","value":{"qux":{"type":"object","value":{"quux":"corge"}}}}}}}}}}');15console.log(result);16const { parseSerializedValue
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/server/frames');2const { serializeValue } = require('playwright/lib/server/serializers');3const { parse } = require('playwright/lib/server/protocol');4const { parseCallArgument } = require('playwright/lib/server/callMetadata');5const { parseEvaluationResult } = require('playwright/lib/server/page');6const { parseValueResult } = require('playwright/lib/server/elementHandleDispatcher');7const { Page } = require('playwright/lib/server/page');8const { ElementHandle } = require('playwright/lib/server/elementHandler');9const { JSHandle } = require('playwright/lib/server/jsHandle');10const { JSHandleDispatcher } = require('playwright/lib/server/jsHandleDispatcher');11const { ElementHandleDispatcher } = require('playwright/lib/server/elementHandleDispatcher');12const { Frame } = require('playwright/lib/server/frame');13const { FrameDispatcher } = require('playwright/lib/server/frameDispatcher');14const { helper } = require('playwright/lib/server/helper');15const { assert } = require('playwright/lib/server/helper');16const { CDPSession } = require('playwright/lib/server/cdpSession');17const { CDPSessionDispatcher } = require('playwright/lib/server/cdpSessionDispatcher');18const { Connection } = require('playwright/lib/server/connection');19const { ConnectionDispatcher } = require('playwright/lib/server/connectionDispatcher');20const { BrowserContext } = require('playwright/lib/server/browserContext');21const { BrowserContextDispatcher } = require('playwright/lib/server/browserContextDispatcher');22const { Browser } = require('playwright/lib/server/browser');23const { BrowserDispatcher } = require('playwright/lib/server/browserDispatcher');24const { Playwright } = require('playwright/lib/server/playwright');25const { PlaywrightDispatcher } = require('playwright/lib/server/playwrightDispatcher');26const { DispatcherConnection } = require('playwright/lib/client/dispatcher');27const { parseSerializedValue } = require('playwright/lib/server/frames');28const { serializeValue } = require('playwright/lib/server/serializers');29const { parse } = require('playwright/lib/server/protocol');30const { parseCallArgument } = require('playwright/lib/server/callMetadata');31const { parseEvaluationResult } = require('playwright/lib/server/page');32const { parseValue
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/client/protocol/serializers');2const value = parseSerializedValue('{"foo":"bar"}');3console.log(value);4const { parseSerializedValue } = require('playwright/lib/server/protocol/serializers');5const value = parseSerializedValue('{"foo":"bar"}');6console.log(value);7{ foo: 'bar' }
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/server/frames');2const value = parseSerializedValue({ type: 'string', value: 'Hello World' });3console.log(value);4const value = 'Hello World';5console.log(typeof value);6const { parseSerializedValue } = require('playwright/lib/server/frames');7const value = parseSerializedValue({ type: 'string', value: 'Hello World' });8console.log(value);9const value = 'Hello World';10console.log(typeof value);11const { parseSerializedValue } = require('playwright/lib/server/frames');12const value = parseSerializedValue({ type: 'string', value: 'Hello World' });13console.log(value);
Using AI Code Generation
1const { parseSerializedValue } = require('@playwright/test/lib/utils/serializedValue');2const serializedValue = {3 preview: {4 {5 },6 {7 },8 },9};10console.log(parseSerializedValue(serializedValue));11{ a: 1, b: 'b' }
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/server/common/serializers');2const value = 'Hello World';3const { value: parsedValue } = parseSerializedValue(value);4console.log(parsedValue);5const { parseSerializedValue } = require('playwright/lib/server/common/serializers');6const value = 'Hello World';7const { value: parsedValue } = parseSerializedValue(value);8console.log(parsedValue);9const playwright = require('playwright');10(async () => {11 for (const browserType of ['chromium', 'firefox', 'webkit']) {12 const browser = await playwright[browserType].launch();13 const context = await browser.newContext();14 const page = await context.newPage();15 await page.screenshot({ path: `example-${browserType}.png` });16 await browser.close();17 }18})();19const playwright = require('playwright');20(async () => {21 for (const browserType of
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/client/serializers');2const value = parseSerializedValue({ type: 'string', value: 'Hello World' });3console.log(value);4const { parseSerializedValue } = require('playwright/lib/client/serializers');5const value = parseSerializedValue({ type: 'string', value: 'Hello World' });6console.log(value);7const { parseSerializedValue } = require('playwright/lib/client/serializers');8const value = parseSerializedValue({ type: 'string', value: 'Hello World' });9console.log(value);10const { parseSerializedValue } = require('playwright/lib/client/serializers');11const value = parseSerializedValue({ type: 'string', value: 'Hello World' });12console.log(value);13const { parseSerializedValue } = require('playwright/lib/client/serializers');14const value = parseSerializedValue({ type: 'string', value: 'Hello World' });15console.log(value);
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/server/frames');2const { parse } = require('playwright/lib/utils/parseUtils');3const value = parseSerializedValue(parse(`{ "foo": "bar" }`));4console.log(value);5const { parseSerializedValue } = require('playwright/lib/server/frames');6const { parse } = require('playwright/lib/utils/parseUtils');7const value = parseSerializedValue(parse(`{ "foo": "bar" }`));8console.log(value);
Using AI Code Generation
1const { parseSerializedValue } = require('playwright/lib/protocol/serializers');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 value = await page.evaluate(() => {8 const obj = { a: 1, b: 'test' };9 const objString = JSON.stringify(obj);10 return objString;11 });12 console.log(value);13 const parsedValue = parseSerializedValue(value);14 console.log(parsedValue);15 await browser.close();16})();17{"a":1,"b":"test"}18{ a: 1, b: 'test' }19parseSerializedValue(value)20JSON.stringify() method21JSON.parse() method
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
})
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