How to use createCodegenContext method in Playwright Internal

Best JavaScript code snippet using playwright-internal

guide-mini-vue.esm.js

Source:guide-mini-vue.esm.js Github

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...850 [TO_DISPLAY_STRING]: "toDisplayString",851 [CREATE_ELEMENT_VNODE]: "createElementVNode",852};853function generate(ast) {854 const context = createCodegenContext();855 const { push } = context;856 genFunctionPreamble(ast, context);857 const functionName = "render";858 const args = ["_ctx", "_cache"];859 const signature = args.join(", ");860 push(`function ${functionName}(${signature}){`);861 push("return ");862 genNode(ast.codegenNode, context);863 push("}");864 return {865 code: context.code,866 };867}868function genFunctionPreamble(ast, context) {869 const { push } = context;870 const VueBinging = "Vue";871 const aliasHelper = (s) => `${helperMapName[s]}:_${helperMapName[s]}`;872 if (ast.helpers.length > 0) {873 push(`const { ${ast.helpers.map(aliasHelper).join(", ")} } = ${VueBinging}`);874 }875 push("\n");876 push("return ");877}878function createCodegenContext() {879 const context = {880 code: "",881 push(source) {882 context.code += source;883 },884 helper(key) {885 return `_${helperMapName[key]}`;886 },887 };888 return context;889}890function genNode(node, context) {891 switch (node.type) {892 case 3 /* TEXT */:...

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genCode.js

Source:genCode.js Github

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...17 isSimpleIdentifier,18 toValidAssetId,19} from '@vue/compiler-core';20const PURE_ANNOTATION = `/*#__PURE__*/`;21function createCodegenContext(22 ast,23 {24 mode = 'function',25 prefixIdentifiers = mode === 'module',26 sourceMap = false,27 filename = `template.vue.html`,28 scopeId = null,29 optimizeImports = false,30 runtimeGlobalName = `Vue`,31 runtimeModuleName = `vue`,32 ssr = false,33 }34) {35 const context = {36 mode,37 prefixIdentifiers,38 sourceMap,39 filename,40 scopeId,41 optimizeImports,42 runtimeGlobalName,43 runtimeModuleName,44 ssr,45 source: ast.loc.source,46 code: ``,47 column: 1,48 line: 1,49 offset: 0,50 indentLevel: 0,51 pure: false,52 map: undefined,53 helper(key) {54 return `_${helperNameMap[key]}`;55 },56 push(code, node) {57 context.code += code;58 },59 indent() {60 newline(++context.indentLevel);61 },62 deindent(withoutNewLine = false) {63 if (withoutNewLine) {64 --context.indentLevel;65 } else {66 newline(--context.indentLevel);67 }68 },69 newline() {70 newline(context.indentLevel);71 },72 };73 function newline(n) {74 context.push('\n' + ` `.repeat(n));75 }76 return context;77}78function generate(ast, options = {}) {79 const context = createCodegenContext(ast, options);80 if (options.onContextCreated) options.onContextCreated(context);81 const { mode, push, prefixIdentifiers, indent, deindent, newline, scopeId, ssr } = context;82 const hasHelpers = ast.helpers.length > 0;83 const useWithBlock = !prefixIdentifiers && mode !== 'module';84 // preambles85 // in setup() inline mode, the preamble is generated in a sub context86 // and returned separately.87 const preambleContext = context;88 {89 genFunctionPreamble(ast, preambleContext);90 }91 // enter render function92 const functionName = ssr ? `ssrRender` : `render`;93 const args = ssr ? ['_ctx', '_push', '_parent', '_attrs'] : ['_ctx', '_cache'];...

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codegen.simple.js

Source:codegen.simple.js Github

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2const { TEMPLATE_AST } = require('../parse/parse.simple')3const __BROWSER__ = false4// 15function generate(ast, options) {6 const context = createCodegenContext(ast, options)7 const {8 mode,9 push,10 helper, 11 prefixIdentifiers,12 indent,13 deindent,14 newline15 } = context16 const hasHelpers = ast.helpers.length > 017 const useWithBlock = !prefixIdentifiers && mode !== 'module'18 // preambles19 if (mode === 'function') {20 // 为helpers创建const声明21 // 在前缀模式中：我们将const放在顶部，这样能一次完成22 // 不在前缀模式中：我们就将cosnt放在with结构中，来避免'in'检查来造成的损耗？？23 24 if (hasHelpers) {25 if (prefixIdentifiers) {26 27 // function helper(key) {28 // const name = helperNameMap[key]29 // return prefixIdentifiers ? name : `_${name}`30 // }31 // [Symbol('createVNode'), Symbol('resolveDirective')].map(helper).join(', ')32 // helperNameMap是Symobol的一种使用场景33 34 // 添加代码35 push(`const { ${ast.helpers.map(helper).join(', ')} } = Vue\n`)36 } else {37 // "with" mode.38 // 避免冲突39 push(`const _Vue = Vue\n`)40 // in "with" mode, helpers are declared inside the with block to avoid41 // has check cost, but hoists are lifted out of the function - we need42 // to provide the helper here.43 // 在with模式时，为了避免has检查，helpers定义在with结构中。但是44 45 if (ast.hoists.length) {46 push(47 `const _${helperNameMap[CREATE_VNODE]} = Vue.${48 helperNameMap[CREATE_VNODE]49 }\n`50 )51 if (ast.helpers.includes(CREATE_COMMENT)) {52 push(53 `const _${helperNameMap[CREATE_COMMENT]} = Vue.${54 helperNameMap[CREATE_COMMENT]55 }\n`56 )57 }58 }59 }60 }61 genHoists(ast.hoists, context)62 newline()63 push(`return `)64 } else {65 // generate import statements for helpers66 if (hasHelpers) {67 push(`import { ${ast.helpers.map(helper).join(', ')} } from "vue"\n`)68 }69 genHoists(ast.hoists, context)70 newline()71 push(`export default `)72 }73 // enter render function74 push(`function render() {`)75 indent()76 if (useWithBlock) {77 push(`with (this) {`)78 indent()79 // function mode const declarations should be inside with block80 // also they should be renamed to avoid collision with user properties81 if (hasHelpers) {82 push(83 `const { ${ast.helpers84 .map(s => `${helperNameMap[s]}: _${helperNameMap[s]}`)85 .join(', ')} } = _Vue`86 )87 newline()88 if (ast.cached > 0) {89 push(`const _cache = $cache`)90 newline()91 }92 newline()93 }94 } else {95 push(`const _ctx = this`)96 if (ast.cached > 0) {97 newline()98 push(`const _cache = _ctx.$cache`)99 }100 newline()101 }102 // generate asset resolution statements103 if (ast.components.length) {104 genAssets(ast.components, 'component', context)105 }106 if (ast.directives.length) {107 genAssets(ast.directives, 'directive', context)108 }109 if (ast.components.length || ast.directives.length) {110 newline()111 }112 // generate the VNode tree expression113 push(`return `)114 if (ast.codegenNode) {115 genNode(ast.codegenNode, context)116 } else {117 push(`null`)118 }119 if (useWithBlock) {120 deindent()121 push(`}`)122 }123 deindent()124 push(`}`)125 return {126 ast,127 code: context.code,128 map: undefined //context.map ? context.map.toJSON() : undefined129 }130}131// 2132function createCodegenContext(ast, {133 mode = 'function',134 prefixIdentifiers = mode === 'module',135 sourceMap = false,136 filename = `template.vue.html`137}) {138 const context = {139 mode,140 prefixIdentifiers,141 sourceMap,142 filename,143 source: ast.loc.source,144 code: ``,145 column: 1,146 line: 1,...

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compileRelayArtifacts.js

Source:compileRelayArtifacts.js Github

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1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow strict-local8 * @format9 */10// flowlint ambiguous-object-type:error11'use strict';12const Printer = require('../core/IRPrinter');13const Profiler = require('../core/GraphQLCompilerProfiler');14const RelayCodeGenerator = require('./RelayCodeGenerator');15const filterContextForNode = require('../core/filterContextForNode');16import type CompilerContext from '../core/CompilerContext';17import type {IRTransform} from '../core/CompilerContext';18import type {GeneratedDefinition} from '../core/IR';19import type {Reporter} from '../reporters/Reporter';20import type {GeneratedNode} from 'relay-runtime';21export type RelayCompilerTransforms = {22 commonTransforms: $ReadOnlyArray<IRTransform>,23 codegenTransforms: $ReadOnlyArray<IRTransform>,24 fragmentTransforms: $ReadOnlyArray<IRTransform>,25 printTransforms: $ReadOnlyArray<IRTransform>,26 queryTransforms: $ReadOnlyArray<IRTransform>,27 ...28};29function createFragmentContext(30 context: CompilerContext,31 transforms: RelayCompilerTransforms,32 reporter?: Reporter,33): CompilerContext {34 // The fragment is used for reading data from the normalized store.35 return context.applyTransforms(36 [...transforms.commonTransforms, ...transforms.fragmentTransforms],37 reporter,38 );39}40function createPrintContext(41 context: CompilerContext,42 transforms: RelayCompilerTransforms,43 reporter?: Reporter,44): CompilerContext {45 // The unflattened query is used for printing, since flattening creates an46 // invalid query.47 return context.applyTransforms(48 [49 ...transforms.commonTransforms,50 ...transforms.queryTransforms,51 ...transforms.printTransforms,52 ],53 reporter,54 );55}56function createCodeGenContext(57 context: CompilerContext,58 transforms: RelayCompilerTransforms,59 reporter?: Reporter,60): CompilerContext {61 // The flattened query is used for codegen in order to reduce the number of62 // duplicate fields that must be processed during response normalization.63 return context.applyTransforms(64 [65 ...transforms.commonTransforms,66 ...transforms.queryTransforms,67 ...transforms.codegenTransforms,68 ],69 reporter,70 );71}72function compile(73 context: CompilerContext,74 fragmentContext: CompilerContext,75 printContext: CompilerContext,76 codeGenContext: CompilerContext,77): $ReadOnlyArray<[GeneratedDefinition, GeneratedNode]> {78 const results = [];79 const schema = context.getSchema();80 // Add everything from codeGenContext, these are the operations as well as81 // SplitOperations from @match.82 for (const node of codeGenContext.documents()) {83 if (node.kind === 'Root') {84 const fragment = fragmentContext.getRoot(node.name);85 const request = {86 kind: 'Request',87 fragment: {88 kind: 'Fragment',89 argumentDefinitions: fragment.argumentDefinitions,90 directives: fragment.directives,91 loc: {kind: 'Derived', source: node.loc},92 metadata: null,93 name: fragment.name,94 selections: fragment.selections,95 type: fragment.type,96 },97 id: null,98 loc: node.loc,99 metadata: node.metadata || {},100 name: fragment.name,101 root: node,102 text: printOperation(printContext, fragment.name),103 };104 results.push([request, RelayCodeGenerator.generate(schema, request)]);105 } else {106 results.push([node, RelayCodeGenerator.generate(schema, node)]);107 }108 }109 // Add all the Fragments from the fragmentContext for the reader ASTs.110 for (const node of fragmentContext.documents()) {111 if (node.kind === 'Fragment') {112 results.push([node, RelayCodeGenerator.generate(schema, node)]);113 }114 }115 return results;116}117const OPERATION_ORDER = {118 Root: 0,119 SplitOperation: 1,120 Fragment: 2,121};122function printOperation(printContext: CompilerContext, name: string): string {123 const printableRoot = printContext.getRoot(name);124 return filterContextForNode(printableRoot, printContext)125 .documents()126 .sort((a, b) => {127 if (a.kind !== b.kind) {128 return OPERATION_ORDER[a.kind] - OPERATION_ORDER[b.kind];129 }130 return a.name < b.name ? -1 : 1;131 })132 .map(doc => Printer.print(printContext.getSchema(), doc))133 .join('\n');134}135/**136 * Transforms the provided compiler context137 *138 * compileRelayArtifacts generates artifacts for Relay's runtime as a result of139 * applying a series of transforms. Each kind of artifact is dependent on140 * transforms being applied in the following order:141 *142 * - Fragment Readers: commonTransforms, fragmentTransforms143 * - Operation Writers: commonTransforms, queryTransforms, codegenTransforms144 * - GraphQL Text: commonTransforms, queryTransforms, printTransforms145 *146 * The order of the transforms applied for each artifact below is important.147 * CompilerContext will memoize applying each transform, so while148 * `commonTransforms` appears in each artifacts' application, it will not result149 * in repeated work as long as the order remains consistent across each context.150 */151function compileRelayArtifacts(152 context: CompilerContext,153 transforms: RelayCompilerTransforms,154 reporter?: Reporter,155): $ReadOnlyArray<[GeneratedDefinition, GeneratedNode]> {156 return Profiler.run('GraphQLCompiler.compile', () => {157 const fragmentContext = createFragmentContext(158 context,159 transforms,160 reporter,161 );162 const printContext = createPrintContext(context, transforms, reporter);163 const codeGenContext = createCodeGenContext(context, transforms, reporter);164 return compile(context, fragmentContext, printContext, codeGenContext);165 });166}...

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codegen.js

Source:codegen.js Github

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1import { isObject, isString } from '../utils';2import { NodeTypes } from './ast';3function createCodegenContext() {4 const context = {5 // state6 code: '',7 indentLevel: 0,8 // method9 push(code) {10 context.code += code;11 },12 indent() {13 newline(++context.indentLevel);14 },15 deindent(witoutNewLine = false) {16 if (witoutNewLine) {17 --context.indentLevel;18 } else {19 newline(--context.indentLevel);20 }21 },22 newline() {23 newline(context.indentLevel);24 }25 };26 function newline(n) {27 context.push('\n' + ' '.repeat(n));28 }29 return context;30}31export function generate(ast) {32 const context = createCodegenContext();33 const { push, indent, deindent } = context;34 indent();35 push('with (ctx) {');36 indent();37 push('return ');38 if (ast.codegenNode) {39 genNode(ast.codegenNode, context);40 } else {41 push('null');42 }43 deindent();44 push('}');45 return {46 ast,...

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tranform-vue.js

Source:tranform-vue.js Github

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...112 compilerCode(readVueFile(`${args[0]}/index.vue`))113 )114}115run()116function createCodegenContext(ast) {117 const context = {118 code: ``,119 push(code) {120 context.code += code121 },122 source: ast.loc.source,123 newline(n = 2) {124 context.push('\n' + ` `.repeat(n))125 },126 }127 return context128}129function genTemplate(ast) {130 const context = createCodegenContext(ast)131 const { push, newline } = context132 push('<template>')133 newline()134 genHTML(ast, context)135 push('</template>')136 newline()137 return context138}139function genHTML(ast, context) {140 const { push, newline } = context141 ast.children.forEach(child => {142 const { tag, isSelfClosing, props } = child143 if (tag) {144 if (isSelfClosing) {...

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05-generate.js

Source:05-generate.js Github

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1export function generate(2 ast,3 options4 ): CodegenResult {5 const context = createCodegenContext(ast, options)6 const {7 mode,8 push,9 prefixIdentifiers,10 indent,11 deindent,12 newline,13 scopeId,14 ssr15 } = context16 17 if (!__BROWSER__ && mode === 'module') {18 // 预设代码，module风格 就是import语句19 genModulePreamble(ast, preambleContext, genScopeId, isSetupInlined)...

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compiler_generateOne.md.f38fde88.lean.js

Source:compiler_generateOne.md.f38fde88.lean.js Github

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1import { o as n, c as s, a } from './app.547ab472.js'2const t =3 '{"title":"generate 代码生成","description":"","frontmatter":{},"headers":[{"level":2,"title":"generate 代码生成","slug":"generate-代码生成"},{"level":2,"title":"createCodegenContext 创建代码生成上下文","slug":"createcodegencontext-创建代码生成上下文"},{"level":2,"title":"具体实现","slug":"具体实现"},{"level":3,"title":"genFunctionPreamble 生成函数方式","slug":"genfunctionpreamble-生成函数方式"}],"relativePath":"compiler/generateOne.md","lastUpdated":1641357564051}',4 p = {},5 o = a('', 11)6p.render = function(a, t, p, e, c, l) {7 return n(), s('div', null, [o])8}9export default p...

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Using AI Code Generation

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1const { createCodegenContext } = require('playwright-core/lib/server/codegen');2const { chromium } = require('playwright-core');3const fs = require('fs');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const codegenContext = createCodegenContext(page, {9 log: {10 log: (message) => {11 fs.appendFile('test.log', message + '\n', function (err) {12 if (err) throw err;13 console.log('Saved!');14 });15 },16 },17 });18 await codegenContext.start();19 await page.click('input[name="q"]');20 await page.fill('input[name="q"]', 'Playwright');21 await page.press('input[name="q"]', 'Enter');22 await page.click('text=Playwright: Node.js library to automate ... ›');23 await page.close();24 await context.close();25 await browser.close();26})();

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Using AI Code Generation

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1const playwright = require('playwright');2const { createCodegenContext } = require('playwright/lib/utils/codegen');3const context = await createCodegenContext();4await context.run(async () => {5 const browser = await playwright.chromium.launch();6 const page = await browser.newPage();7 await page.click('input[name="q"]');8 await page.fill('input[name="q"]', 'Hello World!');9 await browser.close();10});

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Using AI Code Generation

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1const { createCodegenContext } = require('playwright-core/lib/server/codegen');2const { chromium } = require('playwright-core');3const fs = require('fs');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const codegenContext = createCodegenContext(page, {9 log: {10 log: (message) => {11 fs.appendFile('test.log', message + '\n', function (err) {12 if (err) throw err;13 console.log('Saved!');14 });15 },16 },17 });18 await codegenContext.start();19 await page.click('input[name="q"]');20 await page.fill('input[name="q"]', 'Playwright');21 await page.press('input[name="q"]', 'Enter');22 await page.click('text=Playwright: Node.js library to automate ... ›');23 await page.close();24 await context.close();25 await browser.close();26})();

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Using AI Code Generation

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1const playwright = require('playwright');2const { createCodegenContext } = require('playwright/lib/utils/codegen');3const context = await createCodegenContext();4await context.run(async () => {5 const browser = await playwright.chromium.launch();6 const page = await browser.newPage();7 await page.click('input[name="q"]');8 await page.fill('input[name="q"]', 'Hello World!');9 await browser.close();10});

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Using AI Code Generation

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1const { createCodegenContext } = require('playwright/lib/server/cjs/codegen/codegen');2const codegen = createCodegenContext({3 viewport: { width: 1280, height: 720 },4 userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS-core X 10_15_6) Ahrpmium/crPage');5const context = await createCopleWeContext(page);6await context.start();7{8 "compilerOptions": {9 }10}

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Using AI Code Generation

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1const { : eateCodegenContext } = requ{re('}laywrigh/lib/server/codegen/codegen);2const context = await createCodegenContext(browser);3context.on('request' (request) => {4});5const { contextOptions, pageOptions } = codegen;6const { chromium } = require('playwright');7(async () => {8 const browser = await chromium.launch();9 const context = await browser.newContext(contextOptions);10 const page = await context.newPage(pageOptions);11 await page.close();12 await context.close();13 await browser.close();14})();

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Using AI Code Generation

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1const { createCodegenContext } = require('playwright/lib/server/codegen/codegen');2const codegenContext = createCodegenContext();3const codegen = codegenContext.createCodeGenerator('javascript');4### `codegen.startFile()`5### `codegen.addScriptTag(url)`6### `codegen.addPage(page)`7### `codegen.addPage(page, options)`8### `codegen.addSource(source)`9### `codegen.addSource(source, options)`10### `codegen.addScript(script)`11### `codegen.addScript(script, options)`12### `codegen.addHeader(header)`

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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.

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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.
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  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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