How to use storageState method in Playwright Internal

Best JavaScript code snippet using playwright-internal

storage.js

Source: storage.js Github

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1/​*---------------------------------------------------------------------------------------------2 * Copyright (c) Microsoft Corporation. All rights reserved.3 * Licensed under the MIT License. See License.txt in the project root for license information.4 *--------------------------------------------------------------------------------------------*/​5var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {6 function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }7 return new (P || (P = Promise))(function (resolve, reject) {8 function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }9 function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }10 function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }11 step((generator = generator.apply(thisArg, _arguments || [])).next());12 });13};14import { ThrottledDelayer } from '../​../​../​common/​async.js';15import { Emitter, Event } from '../​../​../​common/​event.js';16import { Disposable } from '../​../​../​common/​lifecycle.js';17import { isUndefinedOrNull } from '../​../​../​common/​types.js';18var StorageState;19(function (StorageState) {20 StorageState[StorageState["None"] = 0] = "None";21 StorageState[StorageState["Initialized"] = 1] = "Initialized";22 StorageState[StorageState["Closed"] = 2] = "Closed";23})(StorageState || (StorageState = {}));24export class Storage extends Disposable {25 constructor(database, options = Object.create(null)) {26 super();27 this.database = database;28 this.options = options;29 this._onDidChangeStorage = this._register(new Emitter());30 this.onDidChangeStorage = this._onDidChangeStorage.event;31 this.state = StorageState.None;32 this.cache = new Map();33 this.flushDelayer = new ThrottledDelayer(Storage.DEFAULT_FLUSH_DELAY);34 this.pendingDeletes = new Set();35 this.pendingInserts = new Map();36 this.whenFlushedCallbacks = [];37 this.registerListeners();38 }39 registerListeners() {40 this._register(this.database.onDidChangeItemsExternal(e => this.onDidChangeItemsExternal(e)));41 }42 onDidChangeItemsExternal(e) {43 var _a, _b;44 /​/​ items that change external require us to update our45 /​/​ caches with the values. we just accept the value and46 /​/​ emit an event if there is a change.47 (_a = e.changed) === null || _a === void 0 ? void 0 : _a.forEach((value, key) => this.accept(key, value));48 (_b = e.deleted) === null || _b === void 0 ? void 0 : _b.forEach(key => this.accept(key, undefined));49 }50 accept(key, value) {51 if (this.state === StorageState.Closed) {52 return; /​/​ Return early if we are already closed53 }54 let changed = false;55 /​/​ Item got removed, check for deletion56 if (isUndefinedOrNull(value)) {57 changed = this.cache.delete(key);58 }59 /​/​ Item got updated, check for change60 else {61 const currentValue = this.cache.get(key);62 if (currentValue !== value) {63 this.cache.set(key, value);64 changed = true;65 }66 }67 /​/​ Signal to outside listeners68 if (changed) {69 this._onDidChangeStorage.fire(key);70 }71 }72 get(key, fallbackValue) {73 const value = this.cache.get(key);74 if (isUndefinedOrNull(value)) {75 return fallbackValue;76 }77 return value;78 }79 getBoolean(key, fallbackValue) {80 const value = this.get(key);81 if (isUndefinedOrNull(value)) {82 return fallbackValue;83 }84 return value === 'true';85 }86 getNumber(key, fallbackValue) {87 const value = this.get(key);88 if (isUndefinedOrNull(value)) {89 return fallbackValue;90 }91 return parseInt(value, 10);92 }93 set(key, value) {94 return __awaiter(this, void 0, void 0, function* () {95 if (this.state === StorageState.Closed) {96 return; /​/​ Return early if we are already closed97 }98 /​/​ We remove the key for undefined/​null values99 if (isUndefinedOrNull(value)) {100 return this.delete(key);101 }102 /​/​ Otherwise, convert to String and store103 const valueStr = String(value);104 /​/​ Return early if value already set105 const currentValue = this.cache.get(key);106 if (currentValue === valueStr) {107 return;108 }109 /​/​ Update in cache and pending110 this.cache.set(key, valueStr);111 this.pendingInserts.set(key, valueStr);112 this.pendingDeletes.delete(key);113 /​/​ Event114 this._onDidChangeStorage.fire(key);115 /​/​ Accumulate work by scheduling after timeout116 return this.flushDelayer.trigger(() => this.flushPending());117 });118 }119 delete(key) {120 return __awaiter(this, void 0, void 0, function* () {121 if (this.state === StorageState.Closed) {122 return; /​/​ Return early if we are already closed123 }124 /​/​ Remove from cache and add to pending125 const wasDeleted = this.cache.delete(key);126 if (!wasDeleted) {127 return; /​/​ Return early if value already deleted128 }129 if (!this.pendingDeletes.has(key)) {130 this.pendingDeletes.add(key);131 }132 this.pendingInserts.delete(key);133 /​/​ Event134 this._onDidChangeStorage.fire(key);135 /​/​ Accumulate work by scheduling after timeout136 return this.flushDelayer.trigger(() => this.flushPending());137 });138 }139 get hasPending() {140 return this.pendingInserts.size > 0 || this.pendingDeletes.size > 0;141 }142 flushPending() {143 return __awaiter(this, void 0, void 0, function* () {144 if (!this.hasPending) {145 return; /​/​ return early if nothing to do146 }147 /​/​ Get pending data148 const updateRequest = { insert: this.pendingInserts, delete: this.pendingDeletes };149 /​/​ Reset pending data for next run150 this.pendingDeletes = new Set();151 this.pendingInserts = new Map();152 /​/​ Update in storage and release any153 /​/​ waiters we have once done154 return this.database.updateItems(updateRequest).finally(() => {155 var _a;156 if (!this.hasPending) {157 while (this.whenFlushedCallbacks.length) {158 (_a = this.whenFlushedCallbacks.pop()) === null || _a === void 0 ? void 0 : _a();159 }160 }161 });162 });163 }164 dispose() {165 this.flushDelayer.dispose();166 super.dispose();167 }168}169Storage.DEFAULT_FLUSH_DELAY = 100;170export class InMemoryStorageDatabase {171 constructor() {172 this.onDidChangeItemsExternal = Event.None;173 this.items = new Map();174 }175 updateItems(request) {176 return __awaiter(this, void 0, void 0, function* () {177 if (request.insert) {178 request.insert.forEach((value, key) => this.items.set(key, value));179 }180 if (request.delete) {181 request.delete.forEach(key => this.items.delete(key));182 }183 });184 } ...

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storage_server.js

Source: storage_server.js Github

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1const app = require("express")();2const http = require("http").Server(app);3const io = require("socket.io")(http, {4 cors: {5 origin: "*",6 },7});8var clients = [];9var storageState = {10 a: { write: 0, read: [], content: "" },11 b: { write: 0, read: [], content: "" },12 c: { write: 0, read: [], content: "" },13 d: { write: 0, read: [], content: "" },14};15app.get("/​", (req, res) => {16 17});18const requestQueue=[];19io.on("connection", (socket) => {20 console.log(`User ${socket.handshake.auth.id} /​ ${socket.id} connected`);21 22 socket.emit("storage_state",storageState);23 socket.on("write", ({ storage }) => {24 if (25 storageState[storage].write === 0 &&26 storageState[storage].read.length === 027 ) {28 socket.emit("notification", {29 status: "success",30 msg: `${storage} allocated`,31 });32 /​/​ setInterval(() => {33 /​/​ storageState[storage].write = 0;34 /​/​ io.emit("storage_state", storageState);35 /​/​ }, 15000);36 storageState[storage].write = socket.id;37 io.emit("storage_state", storageState);38 } else if (storageState[storage].read.length === 0) {39 socket.emit("notification", {40 status: "error",41 msg: `${storageState[storage].write} currently writting ${storage}`,42 });43 } else {44 socket.emit("notification", {45 status: "error",46 msg: `Users currently reading ${storage}`,47 });48 }49 });50 socket.on("content", ({ storage, content, type }) => {51 if (storageState[storage].write === socket.id) {52 console.log(type);53 if (type.localeCompare("r")!==0 && type.localeCompare("a")!==0) {54 socket.emit("notification", {55 status: "error",56 msg: `The type is not proper`,57 });58 } else if (type.localeCompare("r")===0) {59 storageState[storage].content = content;60 socket.emit("notification", {61 status: "success",62 msg: `Content replaced successfuly`,63 });64 } else if (type.localeCompare("a")===0) {65 storageState[storage].content += " " + content;66 socket.emit("notification", {67 status: "success",68 msg: `Content appended successfuly`,69 });70 }71 } else {72 socket.emit("notification", {73 status: "error",74 msg: `You do not have permission to access the file`,75 });76 }77 });;78 socket.on("read", ({ storage }) => {79 if (storageState[storage].write === 0) {80 if(storageState[storage].read.indexOf(socket.id)===-1){81 socket.emit("notification", {82 status: "success",83 msg: `Read access to ${storage} granted ,Content is : ${storageState[storage].content}`,84 });85 /​/​ setInterval(() => {86 /​/​ var index = storageState[storage].read.indexOf(socket.id);87 /​/​ if (index != -1) {88 /​/​ storageState[storage].read.splice(index, 1);89 /​/​ }90 /​/​ io.emit("storage_state", storageState);91 /​/​ }, 15000);92 storageState[storage].read.push(socket.id);93 io.emit("storage_state", storageState);94 }else{95 socket.emit("notification", {96 status: "error",97 msg: `You already have read access to ${storage}`,98 });99 }100 101 }102 else {103 socket.emit("notification", {104 status: "error",105 msg: `${storageState[storage].write} currently writting ${storage}`,106 });107 }108 });109 socket.on("release", ({ storage }) => {110 if (111 storageState[storage].write === socket.id ||112 storageState[storage].read.indexOf(socket.id)!=-1113 ) {114 socket.emit("notification", {115 status: "success",116 msg: `${storage} is released`,117 });118 var index = storageState[storage].read.indexOf(socket.id);119 if(index!=-1){120 storageState[storage].read.splice(index, 1);121 }122 storageState[storage].write = 0;123 io.emit("storage_state", storageState);124 } else {125 socket.emit("notification", {126 status: "error",127 msg: `You are not reading/​writting ${storage} currently`,128 });129 }130 });131});132http.listen(5000, () => {133 console.log("listening on *:5000");...

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mainContext2.js

Source: mainContext2.js Github

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1import React from "react"2import { StaticQuery, graphql } from 'gatsby'3import { toast } from 'react-toastify';4const mainQuery = graphql`5 query {6 navInfo {7 data8 }9 }10`11const STORAGE_KEY = 'GATSBY_ECOMMERCE_STARTER_'12const initialState = {13 cart: [],14 numberOfItemsInCart: 0,15 total: 016}17const SiteContext = React.createContext()18function calculateTotal(cart) {19 const total = cart.reduce((acc, next) => {20 const quantity = next.quantity21 acc = acc + JSON.parse(next.price) * quantity22 return acc23 }, 0)24 return total25}26class ContextProviderComponent extends React.Component {27 componentDidMount() {28 if (typeof window !== 'undefined') {29 const storageState = window.localStorage.getItem(STORAGE_KEY)30 if (!storageState) {31 window.localStorage.setItem(STORAGE_KEY, JSON.stringify(initialState))32 }33 }34 }35 setItemQuantity = (item) => {36 const storageState = JSON.parse(window.localStorage.getItem(STORAGE_KEY))37 const { cart } = storageState38 const index = cart.findIndex(cartItem => cartItem.id === item.id)39 cart[index].quantity = item.quantity40 window.localStorage.setItem(STORAGE_KEY, JSON.stringify({41 cart, numberOfItemsInCart: cart.length, total: calculateTotal(cart)42 }))43 this.forceUpdate()44 }45 addToCart = item => {46 const storageState = JSON.parse(window.localStorage.getItem(STORAGE_KEY))47 const { cart } = storageState48 if (cart.length) {49 const index = cart.findIndex(cartItem => cartItem.id === item.id)50 if (index >= Number(0)) {51 /​* If this item is already in the cart, update the quantity */​52 cart[index].quantity = cart[index].quantity + item.quantity53 } else {54 /​* If this item is not yet in the cart, add it */​55 cart.push(item)56 }57 } else {58 /​* If no items in the cart, add the first item. */​59 cart.push(item)60 }61 window.localStorage.setItem(STORAGE_KEY, JSON.stringify({62 cart, numberOfItemsInCart: cart.length, total: calculateTotal(cart)63 }))64 toast("Successfully added item to cart!", {65 position: toast.POSITION.TOP_LEFT66 })67 this.forceUpdate()68 }69 removeFromCart = (item) => {70 const storageState = JSON.parse(window.localStorage.getItem(STORAGE_KEY))71 let { cart } = storageState72 cart = cart.filter(c => c.id !== item.id)73 window.localStorage.setItem(STORAGE_KEY, JSON.stringify({74 cart, numberOfItemsInCart: cart.length, total: calculateTotal(cart)75 }))76 this.forceUpdate()77 }78 clearCart = () => {79 window.localStorage.setItem(STORAGE_KEY, JSON.stringify(initialState))80 this.forceUpdate()81 }82 render() {83 let state = initialState84 if (typeof window !== 'undefined') {85 const storageState = window.localStorage.getItem(STORAGE_KEY)86 if (storageState) {87 state = JSON.parse(storageState)88 }89 }90 return (91 <StaticQuery query={mainQuery}>92 { queryData => {93 return (94 <SiteContext.Provider value={{95 ...state,96 navItems: queryData,97 addToCart: this.addToCart,98 clearCart: this.clearCart,99 removeFromCart: this.removeFromCart,100 setItemQuantity: this.setItemQuantity101 }}>102 {this.props.children}103 </​SiteContext.Provider>104 )105 }}106 </​StaticQuery>107 )108 }109}110export {111 SiteContext,112 ContextProviderComponent...

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mainContext.js

Source: mainContext.js Github

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1import React from "react"2import { StaticQuery, graphql } from 'gatsby'3import { toast } from 'react-toastify';4const mainQuery = graphql`5 query {6 navInfo {7 data8 }9 }10`11const STORAGE_KEY = 'GATSBY_ECOMMERCE_STARTER_'12const initialState = {13 cart: [],14 numberOfItemsInCart: 0,15 total: 016}17const SiteContext = React.createContext()18function calculateTotal(cart) {19 const total = cart.reduce((acc, next) => {20 acc = acc + JSON.parse(next.price)21 return acc22 }, 0)23 return total24}25class ContextProviderComponent extends React.Component {26 componentDidMount() {27 if (typeof window !== 'undefined') {28 const storageState = window.localStorage.getItem(STORAGE_KEY)29 if (!storageState) {30 window.localStorage.setItem(STORAGE_KEY, JSON.stringify(initialState))31 }32 }33 }34 addToCart = (item) => {35 const storageState = JSON.parse(window.localStorage.getItem(STORAGE_KEY))36 const { cart } = storageState37 cart.push(item)38 window.localStorage.setItem(STORAGE_KEY, JSON.stringify({39 cart, numberOfItemsInCart: cart.length, total: calculateTotal(cart)40 }))41 toast("Successfully added item to cart!", {42 position: toast.POSITION.TOP_LEFT43 })44 this.forceUpdate()45 }46 removeFromCart = (item) => {47 const storageState = JSON.parse(window.localStorage.getItem(STORAGE_KEY))48 let { cart } = storageState49 cart = cart.filter(c => c.id !== item.id)50 window.localStorage.setItem(STORAGE_KEY, JSON.stringify({51 cart, numberOfItemsInCart: cart.length, total: calculateTotal(cart)52 }))53 this.forceUpdate()54 }55 clearCart = () => {56 window.localStorage.setItem(STORAGE_KEY, JSON.stringify(initialState))57 this.forceUpdate()58 }59 render() {60 let state = initialState61 if (typeof window !== 'undefined') {62 const storageState = window.localStorage.getItem(STORAGE_KEY)63 if (storageState) {64 state = JSON.parse(storageState)65 }66 }67 console.log('state: ', state)68 return (69 <StaticQuery query={mainQuery}>70 { queryData => {71 return (72 <SiteContext.Provider value={{73 ...state,74 navItems: queryData,75 addToCart: this.addToCart,76 clearCart: this.clearCart,77 removeFromCart: this.removeFromCart78 }}>79 {this.props.children}80 </​SiteContext.Provider>81 )82 }}83 </​StaticQuery>84 )85 }86}87export {88 SiteContext,89 ContextProviderComponent...

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Store.js

Source: Store.js Github

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1import {createStore} from 'redux';2import reducer from '../​reducers'3import {obtenerStateStorage , guardarStateStorage} from '../​LocalStorage'4/​/​storageState5const storageState =obtenerStateStorage()6 const store = createStore(7 reducer,8 /​/​storageState9 storageState,10 window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__()11);12/​/​mostrar el storage13store.subscribe( () => {14 guardarStateStorage({15 citas: store.getState().citas16 })17} )...

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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 await page.screenshot({ path: 'google.png' });7 await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11 const browser = await chromium.launch();12 const context = await browser.newContext();13 const page = await context.newPage();14 await page.screenshot({ path: 'google.png' });15 await browser.close();16})();17const { chromium } = require('playwright');18(async () => {19 const browser = await chromium.launch();20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.screenshot({ path: 'google.png' });23 await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.screenshot({ path: 'google.png' });31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch();36 const context = await browser.newContext();37 const page = await context.newPage();38 await page.screenshot({ path: 'google.png' });39 await browser.close();40})();41const { chromium } = require('playwright');42(async () => {43 const browser = await chromium.launch();44 const context = await browser.newContext();45 const page = await context.newPage();46 await page.screenshot({ path: 'google.png' });47 await browser.close();48})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const fs = require('fs');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const storageState = await context.storageState();8 fs.writeFileSync('storage.json', JSON.stringify(storageState));9 await browser.close();10})();11const { chromium } = require('playwright');12const fs = require('fs');13(async () => {14 const browser = await chromium.launch();15 const context = await browser.newContext({16 storageState: JSON.parse(fs.readFileSync('storage.json', 'utf8'))17 });18 const page = await context.newPage();19 await browser.close();20})();

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Using AI Code Generation

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1import { chromium, webkit, firefox } from 'playwright';2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const storageState = await context.storageState();7 console.log(storageState);8 await browser.close();9})();10import { chromium, webkit, firefox } from 'playwright';11(async () => {12 const browser = await chromium.launch();13 const context = await browser.newContext();14 const page = await context.newPage();15 const storageState = await context.storageState();16 await context.setStorageState(storageState);17 await browser.close();18})();19For example, to access the internal APIs of Playwright, you can import the playwright library as follows:20const playwright = require('playwright');21const playwright = require('playwright');22(async () => {23 const browser = await playwright.chromium.launch();24 const context = await browser.newContext();25 const page = await context.newPage();26 const accessibility = await page.accessibility.snapshot();27 console.log(accessibility);28 await browser.close();29})();30const playwright = require('playwright');31(async () => {

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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 await context.storageState({ path: 'storage.json' });7 await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11 const browser = await chromium.launch();12 const context = await browser.newContext({13 });14 const page = await context.newPage();15 await browser.close();16})();17const { chromium } = require('playwright');18(async () => {19 const browser = await chromium.launch();20 const context = await browser.newContext();21 const page = await context.newPage();22 await context.storageState({ path: 'storage.json' });23 await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext({29 });30 const page = await context.newPage();31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch();36 const context = await browser.newContext();37 const page = await context.newPage();

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Using AI Code Generation

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1const { chromium, webkit, firefox } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext({ recordVideo: { dir: 'videos' } });5 const page = await context.newPage();6 await page.fill('input[name="q"]', 'Hello World!');7 await page.click('input[type="submit"]');8 await page.waitForNavigation();9 const cookies = await context.storageState();10 console.log(cookies);11 await browser.close();12})();13const { chromium, webkit, firefox } = require('playwright');14(async () => {15 const browser = await chromium.launch();16 const context = await browser.newContext({ recordVideo: { dir: 'videos' } });17 const page = await context.newPage();18 await context.storageState({cookies: [{name: "test", value: "test"}]});19 await page.fill('input[name="q"]', 'Hello World!');20 await page.click('input[type="submit"]');21 await page.waitForNavigation();22 const cookies = await context.storageState();23 console.log(cookies);24 await browser.close();25})();26const { chromium, webkit, firefox } = require('playwright');27(async () => {28 const browser = await chromium.launch();29 const context = await browser.newContext({ recordVideo: { dir: 'videos' } });30 const page = await context.newPage();31 await page.fill('input[name="q"]', 'Hello World!');32 await page.click('input[type="submit"]');33 await page.waitForNavigation();34 const cookies = await context.storageState();35 console.log(cookies);36 await browser.close();37})();38const { chromium, webkit, firefox } = require('playwright');39(async () => {40 const browser = await chromium.launch();41 const context = await browser.newContext({ recordVideo: { dir: '

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Using AI Code Generation

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1const { storageState } = require('playwright/​lib/​server/​frames');2const { storageState } = require('playwright/​lib/​server/​frames');3const { storageState } = require('playwright/​lib/​server/​frames');4const { storageState } = require('playwright/​lib/​server/​frames');5const { storageState } = require('playwright/​lib/​server/​frames');6const { storageState } = require('playwright/​lib/​server/​frames');7const { storageState } = require('playwright/​lib/​server/​frames');8const { storageState } = require('playwright/​lib/​server/​frames');9const { storageState } = require('playwright/​lib/​server/​frames');10const { storageState } = require('playwright/​lib/​server/​frames');11const { storageState } = require('playwright/​lib/​server/​frames');12const { storageState } = require('playwright/​lib/​server/​frames');13const { storageState } = require('playwright/​lib/​server/​frames');14const { storageState } = require('playwright/​lib/​server/​frames');15const { storageState } = require('playwright/​lib/​server/​frames');16const { storageState } = require('playwright/​lib/​server/​frames');17const { storageState } = require('playwright/​lib/​server/​frames');

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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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  4. 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.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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