How to use getExposeProxy method in Playwright Internal

Best JavaScript code snippet using playwright-internal

Navigation.es.js

Source:Navigation.es.js Github

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...1206const getPublicInstance = (i) => {1207 if (!i)1208 return null;1209 if (isStatefulComponent(i))1210 return getExposeProxy(i) || i.proxy;1211 return getPublicInstance(i.parent);1212};1213const publicPropertiesMap = extend(Object.create(null), {1214 $: (i) => i,1215 $el: (i) => i.vnode.el,1216 $data: (i) => i.data,1217 $props: (i) => i.props,1218 $attrs: (i) => i.attrs,1219 $slots: (i) => i.slots,1220 $refs: (i) => i.refs,1221 $parent: (i) => getPublicInstance(i.parent),1222 $root: (i) => getPublicInstance(i.root),1223 $emit: (i) => i.emit,1224 $options: (i) => resolveMergedOptions(i),1225 $forceUpdate: (i) => () => queueJob(i.update),1226 $nextTick: (i) => nextTick.bind(i.proxy),1227 $watch: (i) => instanceWatch.bind(i)1228});1229let currentInstance = null;1230const setCurrentInstance = (instance) => {1231 currentInstance = instance;1232 instance.scope.on();1233};1234const unsetCurrentInstance = () => {1235 currentInstance && currentInstance.scope.off();1236 currentInstance = null;1237};1238function isStatefulComponent(instance) {1239 return instance.vnode.shapeFlag & 4;1240}1241function getExposeProxy(instance) {1242 if (instance.exposed) {1243 return instance.exposeProxy || (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {1244 get(target, key) {1245 if (key in target) {1246 return target[key];1247 } else if (key in publicPropertiesMap) {1248 return publicPropertiesMap[key](instance);1249 }1250 }1251 }));1252 }1253}1254function isClassComponent(value) {1255 return isFunction(value) && "__vccOpts" in value;...

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Application1.es.js

Source:Application1.es.js Github

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...1168const getPublicInstance = (i) => {1169 if (!i)1170 return null;1171 if (isStatefulComponent(i))1172 return getExposeProxy(i) || i.proxy;1173 return getPublicInstance(i.parent);1174};1175const publicPropertiesMap = extend(Object.create(null), {1176 $: (i) => i,1177 $el: (i) => i.vnode.el,1178 $data: (i) => i.data,1179 $props: (i) => i.props,1180 $attrs: (i) => i.attrs,1181 $slots: (i) => i.slots,1182 $refs: (i) => i.refs,1183 $parent: (i) => getPublicInstance(i.parent),1184 $root: (i) => getPublicInstance(i.root),1185 $emit: (i) => i.emit,1186 $options: (i) => resolveMergedOptions(i),1187 $forceUpdate: (i) => () => queueJob(i.update),1188 $nextTick: (i) => nextTick.bind(i.proxy),1189 $watch: (i) => instanceWatch.bind(i)1190});1191let currentInstance = null;1192const setCurrentInstance = (instance) => {1193 currentInstance = instance;1194 instance.scope.on();1195};1196const unsetCurrentInstance = () => {1197 currentInstance && currentInstance.scope.off();1198 currentInstance = null;1199};1200function isStatefulComponent(instance) {1201 return instance.vnode.shapeFlag & 4;1202}1203function getExposeProxy(instance) {1204 if (instance.exposed) {1205 return instance.exposeProxy || (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {1206 get(target, key) {1207 if (key in target) {1208 return target[key];1209 } else if (key in publicPropertiesMap) {1210 return publicPropertiesMap[key](instance);1211 }1212 }1213 }));1214 }1215}1216function isClassComponent(value) {1217 return isFunction(value) && "__vccOpts" in value;...

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Application2.es.js

Source:Application2.es.js Github

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...612const getPublicInstance = (i) => {613 if (!i)614 return null;615 if (isStatefulComponent(i))616 return getExposeProxy(i) || i.proxy;617 return getPublicInstance(i.parent);618};619const publicPropertiesMap = extend(Object.create(null), {620 $: (i) => i,621 $el: (i) => i.vnode.el,622 $data: (i) => i.data,623 $props: (i) => i.props,624 $attrs: (i) => i.attrs,625 $slots: (i) => i.slots,626 $refs: (i) => i.refs,627 $parent: (i) => getPublicInstance(i.parent),628 $root: (i) => getPublicInstance(i.root),629 $emit: (i) => i.emit,630 $options: (i) => resolveMergedOptions(i),631 $forceUpdate: (i) => () => queueJob(i.update),632 $nextTick: (i) => nextTick.bind(i.proxy),633 $watch: (i) => instanceWatch.bind(i)634});635let currentInstance = null;636const setCurrentInstance = (instance) => {637 currentInstance = instance;638 instance.scope.on();639};640const unsetCurrentInstance = () => {641 currentInstance && currentInstance.scope.off();642 currentInstance = null;643};644function isStatefulComponent(instance) {645 return instance.vnode.shapeFlag & 4;646}647function getExposeProxy(instance) {648 if (instance.exposed) {649 return instance.exposeProxy || (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {650 get(target, key) {651 if (key in target) {652 return target[key];653 } else if (key in publicPropertiesMap) {654 return publicPropertiesMap[key](instance);655 }656 }657 }));658 }659}660function getComponentName(Component) {661 return isFunction(Component) ? Component.displayName || Component.name : Component.name;...

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Menu.js.es.js

Source:Menu.js.es.js Github

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...563const getPublicInstance = (i) => {564 if (!i)565 return null;566 if (isStatefulComponent(i))567 return getExposeProxy(i) || i.proxy;568 return getPublicInstance(i.parent);569};570const publicPropertiesMap = extend(Object.create(null), {571 $: (i) => i,572 $el: (i) => i.vnode.el,573 $data: (i) => i.data,574 $props: (i) => i.props,575 $attrs: (i) => i.attrs,576 $slots: (i) => i.slots,577 $refs: (i) => i.refs,578 $parent: (i) => getPublicInstance(i.parent),579 $root: (i) => getPublicInstance(i.root),580 $emit: (i) => i.emit,581 $options: (i) => resolveMergedOptions(i),582 $forceUpdate: (i) => () => queueJob(i.update),583 $nextTick: (i) => nextTick.bind(i.proxy),584 $watch: (i) => instanceWatch.bind(i)585});586let currentInstance = null;587const setCurrentInstance = (instance) => {588 currentInstance = instance;589 instance.scope.on();590};591const unsetCurrentInstance = () => {592 currentInstance && currentInstance.scope.off();593 currentInstance = null;594};595function isStatefulComponent(instance) {596 return instance.vnode.shapeFlag & 4;597}598function getExposeProxy(instance) {599 if (instance.exposed) {600 return instance.exposeProxy || (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {601 get(target, key) {602 if (key in target) {603 return target[key];604 } else if (key in publicPropertiesMap) {605 return publicPropertiesMap[key](instance);606 }607 }608 }));609 }610}611function isClassComponent(value) {612 return isFunction(value) && "__vccOpts" in value;...

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component.js

Source:component.js Github

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1import {2 EffectScope,3 markRaw,4 pauseTracking,5 resetTracking,6 shallowReadonly,7 proxyRefs8} from '../reactivity/index.js'9import { createAppContext } from './apiCreateApp.js'10import { normalizePropsOptions } from './componentProps.js'11import { normalizeEmitsOptions } from './componentEmits.js'12import {13 EMPTY_OBJ,14 isFunction,15 NOOP,16 isObject,17 NO,18 makeMap,19 isPromise,20 extend21} from '../shared/index.js'22import { emit } from './componentEmits.js'23import { initProps } from './componentProps.js'24import { initSlots } from './componentSlots.js'25// 兼容vue2 data26// import { applyOptions } from './componentOptions.js'27import {28 PublicInstanceProxyHandlers,29 publicPropertiesMap,30 RuntimeCompiledPublicInstanceProxyHandlers31} from './componentPublicInstance.js'32const emptyAppContext = createAppContext()33let uid = 034// 创建组件实例35export function createComponentInstance (vnode, parent, suspense) {36 const type = vnode.type37 // type 数据38 // {39 // props,40 // template,41 // render,42 // setup43 // ...44 // }45 // 继承父组件appContext46 // 如果是是根组件，从vnode上获取appContext47 const appContext =48 (parent ? parent.appContext : vnode.appContext) || emptyAppContext49 const instance = {50 // 组件唯一 id51 uid: uid++,52 // 组件vnode53 vnode,54 type,55 // 父组件56 parent,57 appContext,58 root: null,59 // 需要更新的 vnode，用于更新 component 类型的组件60 next: null,61 // 子节点vnode62 subTree: null,63 effect: null,64 // 副作用更新函数65 update: null,66 /**67 * 管理组件内所有响应式数据68 * */69 scope: new EffectScope(true),70 // 渲染函数71 render: null,72 proxy: null,73 exposed: null,74 exposeProxy: null,75 // 带 with 区块的渲染上下文代理76 withProxy: null,77 // 获取 parent 的 provides 作为当前组件的初始化值78 provides: parent ? parent.provides : Object.create(appContext.provides),79 // 渲染代理的属性访问缓存80 accessCache: null,81 // 渲染缓存82 renderCache: [],83 components: null,84 directives: null,85 propsOptions: normalizePropsOptions(type, appContext),86 emitsOptions: normalizeEmitsOptions(type, appContext),87 // 派发事件方法88 emit: null,89 emitted: null,90 propsDefaults: EMPTY_OBJ,91 inheritAttrs: type.inheritAttrs,92 // 渲染上下文 content 对象93 ctx: EMPTY_OBJ,94 data: EMPTY_OBJ,95 props: EMPTY_OBJ,96 attrs: EMPTY_OBJ,97 slots: EMPTY_OBJ,98 refs: EMPTY_OBJ,99 // setup 返回值100 setupState: EMPTY_OBJ,101 // setup 上下文数据102 setupContext: null,103 suspense,104 suspenseId: suspense ? suspense.pendingId : 0,105 // 异步依赖106 asyncDep: null,107 // suspense 异步依赖是否都已处理108 asyncResolved: false,109 // 是否挂载110 isMounted: false,111 // 是否卸载112 isUnmounted: false,113 // 是否激活114 isDeactivated: false,115 // before created116 bc: null,117 // created118 c: null,119 // before mounted120 bm: null,121 // mounted122 m: null,123 // before update124 bu: null,125 // updated126 u: null,127 // unmount128 um: null,129 // before unmount130 bum: null,131 // deactivated132 da: null,133 // activated134 a: null,135 // render triggered136 rtg: null,137 // render tracked138 rtc: null,139 // error captured140 ec: null,141 sp: null142 }143 // 初始化渲染上下文144 instance.ctx = { _: instance }145 // 初始化根组件指针146 instance.root = parent ? parent.root : instance147 // 初始化事件派发方法148 // 使用 bind 把 instance 进行绑定149 // 使用的时候只需要给 event 和参数即可150 instance.emit = emit.bind(null, instance)151 if (vnode.ce) {152 vnode.ce(instance)153 }154 return instance155}156export let currentInstance = null157// 获取组件实例158export const getCurrentInstance = () => currentInstance159export const setCurrentInstance = instance => {160 currentInstance = instance161 instance.scope.on()162}163export const unsetCurrentInstance = () => {164 currentInstance && currentInstance.scope.off()165 currentInstance = null166}167function isStatefulComponent (instance) {168 return instance.vnode.shapeFlag & 4169}170export function setupComponent (instance) {171 const { props, children } = instance.vnode172 // 判断是否是一个有状态的组件173 const isStateful = isStatefulComponent(instance)174 // 初始化 props175 initProps(instance, props, isStateful)176 // 初始化插槽177 initSlots(instance, children)178 // 设置有状态的组件实例179 const setupResult = isStateful ? setupStatefulComponent(instance) : undefined180 return setupResult181}182function setupStatefulComponent (instance) {183 const Component = instance.type184 // 创建渲染代理的属性缓存185 instance.accessCache = Object.create(null)186 // 创建渲染上下问代理对象187 // instance.ctx188 // 标记代理对象为不会成为响应式对象189 instance.proxy = markRaw(new Proxy(instance.ctx, PublicInstanceProxyHandlers))190 // 获取组件setup函数191 const { setup } = Component192 if (setup) {193 const setupContext = (instance.setupContext =194 setup.length > 1 ? createSetupContext(instance) : null)195 setCurrentInstance(instance)196 pauseTracking()197 // 执行 setup198 const setupResult =199 setup && setup(shallowReadonly(instance.props), setupContext)200 resetTracking()201 unsetCurrentInstance()202 // 处理setup返回值203 handleSetupResult(instance, setupResult)204 } else {205 finishComponentSetup(instance)206 }207}208function handleSetupResult (instance, setupResult) {209 if (isFunction(setupResult)) {210 // setup 返回渲染函数211 instance.render = setupResult212 } else if (isObject(setupResult)) {213 // proxyRefs实现 {{}} 中使用 ref 不用加 value214 instance.setupState = proxyRefs(setupResult)215 }216 finishComponentSetup(instance)217}218let compile219let installWithProxy220export function registerRuntimeCompiler (_compile) {221 compile = _compile222 installWithProxy = i => {223 if (i.render._rc) {224 i.withProxy = new Proxy(i.ctx, RuntimeCompiledPublicInstanceProxyHandlers)225 }226 }227}228function finishComponentSetup (instance) {229 const Component = instance.type230 // 组件实例上是否有 render 函数231 if (!instance.render) {232 // 模板没有 render 函数233 if (compile && !Component.render) {234 const template = Component.template235 if (template) {236 // 标准化模板/渲染函数237 const { isCustomElement, compilerOptions } = instance.appContext.config238 const {239 delimiters,240 compilerOptions: componentCompilerOptions241 } = Component242 const finalCompilerOptions = extend(243 extend({ isCustomElement, delimiters }, compilerOptions),244 componentCompilerOptions245 )246 // 运行时编译 编译模板247 Component.render = compile(template, finalCompilerOptions)248 // console.log(Component.render)249 }250 }251 instance.render = Component.render || NOOP252 if (installWithProxy) {253 installWithProxy(instance)254 }255 }256 {257 setCurrentInstance(instance)258 pauseTracking()259 // 兼容 vue2 写法260 // applyOptions(instance)261 resetTracking()262 unsetCurrentInstance()263 }264}265export function createAttrsProxy (instance) {266 return new Proxy(instance.attrs, {267 get (target, key) {268 markAttrsAccessed()269 track(instance, 'get', '$attrs')270 return target[key]271 }272 })273}274export function createSetupContext (instance) {275 const expose = exposed => {276 instance.exposed = exposed || {}277 }278 let attrs279 return {280 get attrs () {281 return attrs || (attrs = createAttrsProxy(instance))282 },283 slots: instance.slots,284 emit: instance.emit,285 expose286 }287}288export function getExposeProxy (instance) {289 if (instance.exposed) {290 return (291 instance.exposeProxy ||292 (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {293 get (target, key) {294 if (key in target) {295 return target[key]296 } else if (key in publicPropertiesMap) {297 return publicPropertiesMap[key](instance)298 }299 }300 }))301 )302 }303}304const classifyRE = /(?:^|[-_])(\w)/g305const classify = str =>306 str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '')307export function getComponentName (Component) {308 return isFunction(Component)309 ? Component.displayName || Component.name310 : Component.name311}312export function formatComponentName (instance, Component, isRoot = false) {313 let name = getComponentName(Component)314 if (!name && Component.__file) {315 const match = Component.__file.match(/([^/\\]+)\.\w+$/)316 if (match) {317 name = match[1]318 }319 }320 if (!name && instance && instance.parent) {321 const inferFromRegistry = registry => {322 for (const key in registry) {323 if (registry[key] === Component) {324 return key325 }326 }327 }328 name =329 inferFromRegistry(330 instance.components || instance.parent.type.components331 ) || inferFromRegistry(instance.appContext.components)332 }333 return name ? classify(name) : isRoot ? `App` : `Anonymous`334}335export function isClassComponent (value) {336 return isFunction(value) && '__vccOpts' in value...

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componentPublicInstance.js

Source:componentPublicInstance.js Github

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...9import { resolveMergedOptions, shouldCacheAccess } from './componentOptions.js'10import { shallowReadonly, track } from '../reactivity/index.js'11export const getPublicInstance = i => {12 if (!i) return null13 if (isStatefulComponent(i)) return getExposeProxy(i) || i.proxy14 return getPublicInstance(i.parent)15}16export const PublicInstanceProxyHandlers = {17 get ({ _: instance }, key) {18 const {19 ctx,20 setupState,21 data,22 props,23 accessCache,24 type,25 appContext26 } = instance27 let normalizedProps...

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apiCreateApp.js

Source:apiCreateApp.js Github

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...93 render(vnode, rootContainer, isSVG)94 isMounted = true95 app._container = rootContainer96 rootContainer.__vue_app__ = app97 return getExposeProxy(vnode.component) || vnode.component.proxy98 } else {99 return false100 }101 },102 unmount () {103 // 未挂载节点，不能删除104 if (isMounted) {105 render(null, app._container)106 } else {107 // 源码为告警108 return false109 }110 },111 provide (key, value) {...

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rendererTemplateRef.js

Source:rendererTemplateRef.js Github

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...36 return37 }38 const refValue =39 vnode.shapeFlag & 440 ? getExposeProxy(vnode.component) || vnode.component.proxy41 : vnode.el42 const value = isUnmount ? null : refValue43 const { i: owner, r: ref } = rawRef44 if (!owner) {45 return46 }47 const oldRef = oldRawRef && oldRawRef.r48 const refs = owner.refs === EMPTY_OBJ ? (owner.refs = {}) : owner.refs49 const setupState = owner.setupState50 if (oldRef != null && oldRef !== ref) {51 if (isString(oldRef)) {52 refs[oldRef] = null53 if (hasOwn(setupState, oldRef)) {54 setupState[oldRef] = null...

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Using AI Code Generation

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1const { getExposeProxy } = require('playwright/lib/server/browserContext');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 proxy = getExposeProxy(page);8 await proxy.evaluate(() => {9 const { exposeFunction } = require('playwright/lib/server/injected/injectedScript');10 exposeFunction('foo', () => console.log('foo'));11 });12 await page.exposeFunction('bar', () => console.log('bar'));13 await page.evaluate(() => {14 const { callFunction } = require('playwright/lib/server/injected/injectedScript');15 callFunction('foo');16 callFunction('bar');17 });18 await browser.close();19})();20const { test, expect } = require('@playwright/test');21test('test', async ({ page }) => {22 await page.exposeFunction('foo', () => console.log('foo'));23 await page.exposeFunction('bar', () => console.log('bar'));24 await page.evaluate(() => {25 const { callFunction } = require('playwright/lib/server/injected/injectedScript');26 callFunction('foo');27 callFunction('bar');28 });29});30const { test, expect } = require('@playwright/test');31test('test', async ({ page }) => {32 await page.exposeFunction('foo', () => console.log('foo'));33 await page.exposeFunction('bar', () => console.log('bar'));34 await page.evaluate(() => {35 const { callFunction } = require('playwright/lib/server/injected/injectedScript');36 callFunction('foo');37 callFunction('bar');38 });39});40const { test, expect } = require('@playwright/test');41test('test', async ({ page }) => {42 await page.exposeFunction('foo', () => console.log('foo'));43 await page.exposeFunction('bar', () => console.log('bar'));44 await page.evaluate(() => {45 const { callFunction } = require('playwright/lib/server/injected/injectedScript');46 callFunction('foo');

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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 proxy = await page.context().exposeBinding('proxy', (source, target) => {7 console.log('proxy called');8 });9 await page.evaluate(() => {10 window.proxy();11 });12 await browser.close();13})();14import { test, expect } from '@playwright/test';15test('example test', async ({ page }) => {16 const proxy = await page.context().exposeBinding('proxy', (source, target) => {17 console.log('proxy called');18 });19 await page.evaluate(() => {20 window.proxy();21 });22});23const { chromium } = require('playwright');24(async () => {25 const browser = await chromium.launch();26 const context = await browser.newContext();27 const page = await context.newPage();28 const proxy = await page.context().exposeBinding('proxy', (source, target) => {29 console.log('proxy called');30 });31 await page.evaluate(() => {32 window.proxy();33 });34 await browser.close();35})();

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Using AI Code Generation

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1const { getExposeProxy } = require('playwright/lib/server/browserType');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const exposeProxy = getExposeProxy(page);7 exposeProxy('add', (a, b) => a + b);8 const result = await page.evaluate(async () => {9 return await window.add(9, 4);10 });11 await browser.close();12})();13getExposeProxy(page: Page): ExposeProxy14const { getExposeProxy } = require('playwright/lib/server/browserType');15const { chromium } = require('playwright');16(async () => {17 const browser = await chromium.launch();18 const page = await browser.newPage();19 const exposeProxy = getExposeProxy(page);20 exposeProxy('add', (a, b) => a + b);21 const result = await page.evaluate(async () => {22 return await window.add(9, 4);23 });24 await browser.close();25})();26getExposeFunction(page: Page): ExposeFunction27const { getExposeFunction } = require('playwright/lib/server/browserType');28const { chromium } = require('playwright');29(async () => {30 const browser = await chromium.launch();31 const page = await browser.newPage();32 const exposeFunction = getExposeFunction(page);33 exposeFunction('add', (a, b) => a + b);34 const result = await page.evaluate(async () => {35 return await window.__playwright_expose_function__('add', 9, 4);36 });37 await browser.close();38})();39getExposeBinding(page: Page): ExposeBinding40const { getExposeBinding } = require('playwright/lib/server/browserType');41const { chromium } = require('playwright');42(async () => {43 const browser = await chromium.launch();

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Using AI Code Generation

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1const { getExposeProxy } = require('playwright/lib/server/chromium/crBrowser');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 page.on('console', msg => console.log('PAGE LOG:', msg.text()));7 const exposeProxy = getExposeProxy(page);8 exposeProxy.exposeBinding('log', (source, message) => {9 console.log('BINDING LOG:', message);10 });11 await page.evaluate(() => {12 window.log('hello from page');13 console.log('hello from page');14 });15 await browser.close();16})();17const { getExposeProxy } = require('playwright/lib/server/chromium/crBrowser');18const { chromium } = require('playwright');19test('test', async ({page}) => {20 page.on('console', msg => console.log('PAGE LOG:', msg.text()));21 const exposeProxy = getExposeProxy(page);22 exposeProxy.exposeBinding('log', (source, message) => {23 console.log('BINDING LOG:', message);24 });25 await page.evaluate(() => {26 window.log('hello from page');27 console.log('hello from page');28 });29});30The console.log() is executed, but the exposed binding is not. Why is that?31page.on()32page.on('console', msg => console.log('PAGE LOG:', msg.text()));33page.exposeFunction()

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Using AI Code Generation

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1const { getExposeProxy } = require('playwright/lib/server/frames');2const { chromium } = require('playwright');3const path = require('path');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const frame = page.mainFrame();9 const exposeProxy = getExposeProxy(frame);10 const { document } = exposeProxy;11 const input = document.querySelector('input');12 input.value = 'Hello World';13 await page.screenshot({ path: path.join(__dirname, 'test.png') });14 await browser.close();15})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2let browser = await chromium.launch();3const context = await browser.newContext();4const page = await context.newPage();5const exposeProxy = await page.exposeBinding('exposeProxy', (source, ...args) => {6 return source.getExposeProxy();7});8await page.evaluate(() => {9 exposeProxy('Hello World');10});11await page.exposeFunction('exposeProxy', () => {12 return 'Hello World';13});14await page.evaluate(() => {15 exposeProxy();16});17await page.exposeBinding('exposeProxy', () => {18 return 'Hello World';19});20await page.evaluate(() => {21 exposeProxy();22});23const { chromium } = require('playwright');24let browser = await chromium.launch();25const context = await browser.newContext();26const page = await context.newPage();27const exposeProxy = await page.exposeBinding('exposeProxy', (source, ...args) => {28 return source.getExposeProxy();29});30await page.evaluate(() => {31 exposeProxy('Hello World');32});33await page.exposeFunction('exposeProxy', () => {34 return 'Hello World';35});36await page.evaluate(() => {37 exposeProxy();38});39await page.exposeBinding('exposeProxy', () => {40 return 'Hello World';41});42await page.evaluate(() => {43 exposeProxy();44});45const { chromium } = require('playwright');46let browser = await chromium.launch();47const context = await browser.newContext();48const page = await context.newPage();49const exposeProxy = await page.exposeBinding('exposeProxy', (source, ...args) => {50 return source.getExposeProxy();51});52await page.evaluate(() => {53 exposeProxy('Hello World');54});55await page.exposeFunction('exposeProxy', () => {56 return 'Hello World';57});58await page.evaluate(() => {59 exposeProxy();60});61await page.exposeBinding('exposeProxy', () => {62 return 'Hello World';63});64await page.evaluate(() => {65 exposeProxy();66});

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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:

  1. 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.
  2. 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.
  3. 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.
  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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