How to use Worker class of Microsoft.Playwright.Core package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Worker

Connection.cs

Source:Connection.cs Github

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...273 break;274 case ChannelOwnerType.Route:275 result = new Route(parent, guid, initializer?.ToObject<RouteInitializer>(DefaultJsonSerializerOptions));276 break;277 case ChannelOwnerType.Worker:278 result = new Worker(parent, guid, initializer?.ToObject<WorkerInitializer>(DefaultJsonSerializerOptions));279 break;280 case ChannelOwnerType.WebSocket:281 result = new WebSocket(parent, guid, initializer?.ToObject<WebSocketInitializer>(DefaultJsonSerializerOptions));282 break;283 case ChannelOwnerType.Selectors:284 result = new Selectors(parent, guid);285 break;286 case ChannelOwnerType.SocksSupport:287 result = new SocksSupport(parent, guid);288 break;289 case ChannelOwnerType.Stream:290 result = new Stream(parent, guid);291 break;292 case ChannelOwnerType.WritableStream:...

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BrowserContextChannel.cs

Source:BrowserContextChannel.cs Github

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...38 }39 internal event EventHandler Close;40 internal event EventHandler<BrowserContextPageEventArgs> Page;41 internal event EventHandler<BrowserContextPageEventArgs> BackgroundPage;42 internal event EventHandler<WorkerChannelEventArgs> ServiceWorker;43 internal event EventHandler<BindingCallEventArgs> BindingCall;44 internal event EventHandler<RouteEventArgs> Route;45 internal event EventHandler<BrowserContextChannelRequestEventArgs> Request;46 internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFinished;47 internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFailed;48 internal event EventHandler<BrowserContextChannelResponseEventArgs> Response;49 internal override void OnMessage(string method, JsonElement? serverParams)50 {51 switch (method)52 {53 case "close":54 Close?.Invoke(this, EventArgs.Empty);55 break;56 case "bindingCall":57 BindingCall?.Invoke(58 this,59 new() { BindingCall = serverParams?.GetProperty("binding").ToObject<BindingCallChannel>(Connection.DefaultJsonSerializerOptions).Object });60 break;61 case "route":62 var route = serverParams?.GetProperty("route").ToObject<RouteChannel>(Connection.DefaultJsonSerializerOptions).Object;63 var request = serverParams?.GetProperty("request").ToObject<RequestChannel>(Connection.DefaultJsonSerializerOptions).Object;64 Route?.Invoke(65 this,66 new() { Route = route, Request = request });67 break;68 case "page":69 Page?.Invoke(70 this,71 new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });72 break;73 case "crBackgroundPage":74 BackgroundPage?.Invoke(75 this,76 new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });77 break;78 case "crServiceWorker":79 ServiceWorker?.Invoke(80 this,81 new() { WorkerChannel = serverParams?.GetProperty("worker").ToObject<WorkerChannel>(Connection.DefaultJsonSerializerOptions) });82 break;83 case "request":84 Request?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));85 break;86 case "requestFinished":87 RequestFinished?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));88 break;89 case "requestFailed":90 RequestFailed?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));91 break;92 case "response":93 Response?.Invoke(this, serverParams?.ToObject<BrowserContextChannelResponseEventArgs>(Connection.DefaultJsonSerializerOptions));94 break;95 }...

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PageEvent.cs

Source:PageEvent.cs Github

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...65 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.FrameDetached"/>.66 /// </summary>67 public static PlaywrightEvent<IFrame> FrameDetached { get; } = new() { Name = "FrameDetached" };68 /// <summary>69 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Worker"/>.70 /// </summary>71 public static PlaywrightEvent<IWorker> Worker { get; } = new() { Name = "Worker" };72 /// <summary>73 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Dialog"/>.74 /// </summary>75 public static PlaywrightEvent<IDialog> Dialog { get; } = new() { Name = "Dialog" };76 /// <summary>77 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.FileChooser"/>.78 /// </summary>79 public static PlaywrightEvent<IFileChooser> FileChooser { get; } = new() { Name = "FileChooser" };80 /// <summary>81 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.PageError"/>.82 /// </summary>83 public static PlaywrightEvent<string> PageError { get; } = new() { Name = "PageError" };84 /// <summary>85 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Load"/>....

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Worker.cs

Source:Worker.cs Github

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...28using Microsoft.Playwright.Transport.Channels;29using Microsoft.Playwright.Transport.Protocol;30namespace Microsoft.Playwright.Core31{32 internal class Worker : ChannelOwnerBase, IChannelOwner<Worker>, IWorker33 {34 private readonly WorkerChannel _channel;35 private readonly WorkerInitializer _initializer;36 public Worker(IChannelOwner parent, string guid, WorkerInitializer initializer) : base(parent, guid)37 {38 _channel = new(guid, parent.Connection, this);39 _initializer = initializer;40 _channel.Close += (_, _) =>41 {42 if (Page != null)43 {44 Page.WorkersList.Remove(this);45 }46 if (BrowserContext != null)47 {48 BrowserContext.ServiceWorkersList.Remove(this);49 }50 Close?.Invoke(this, this);51 };52 }53 public event EventHandler<IWorker> Close;54 public string Url => _initializer.Url;55 ChannelBase IChannelOwner.Channel => _channel;56 IChannel<Worker> IChannelOwner<Worker>.Channel => _channel;57 internal Page Page { get; set; }58 internal BrowserContext BrowserContext { get; set; }59 public async Task<T> EvaluateAsync<T>(string expression, object arg = null)60 => ScriptsHelper.ParseEvaluateResult<T>(await _channel.EvaluateExpressionAsync(61 expression,62 null,63 ScriptsHelper.SerializedArgument(arg)).ConfigureAwait(false));64 public async Task<IJSHandle> EvaluateHandleAsync(string expression, object arg = null)65 => await _channel.EvaluateExpressionHandleAsync(66 expression,67 null,68 ScriptsHelper.SerializedArgument(arg))69 .ConfigureAwait(false);70 public async Task<IWorker> WaitForCloseAsync(Func<Task> action = default, float? timeout = default)71 {72 using var waiter = new Waiter(this, "worker.WaitForCloseAsync");73 var waiterResult = waiter.GetWaitForEventTask<IWorker>(this, nameof(Close), null);74 var result = waiterResult.Task.WithTimeout(Convert.ToInt32(timeout ?? 0));75 if (action != null)76 {77 await WrapApiBoundaryAsync(() => Task.WhenAll(result, action())).ConfigureAwait(false);78 }79 else80 {81 await result.ConfigureAwait(false);82 }83 return this;84 }85 }86}...

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WorkerChannelImpl.cs

Source:WorkerChannelImpl.cs Github

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...35using Microsoft.Playwright.Helpers;36#nullable enable37namespace Microsoft.Playwright.Transport.Channels38{39 internal class WorkerChannelImpl : Channel<Worker>40 {41 public WorkerChannelImpl(string guid, Connection connection, Worker owner) : base(guid, connection, owner)42 {43 }44 // invoked via close45 internal event EventHandler? Close;46 internal virtual async Task<JsonElement> EvaluateExpressionAsync(string expression,47 bool? isFunction,48 object arg)49 => (await Connection.SendMessageToServerAsync<JsonElement>(50 Guid,51 "evaluateExpression",52 new53 {54 expression = expression,55 isFunction = isFunction,56 arg = arg,57 }58 )59 .ConfigureAwait(false)).GetProperty("value");60 internal virtual async Task<JSHandle> EvaluateExpressionHandleAsync(string expression,61 bool? isFunction,62 object arg)63 => (await Connection.SendMessageToServerAsync<JsonElement>(64 Guid,65 "evaluateExpressionHandle",66 new67 {68 expression = expression,69 isFunction = isFunction,70 arg = arg,71 }72 )73 .ConfigureAwait(false)).GetObject<JSHandle>("handle", Connection);74 protected void OnClose() => Close?.Invoke(this, new());75 }76 internal partial class WorkerChannel : WorkerChannelImpl77 {78 public WorkerChannel(string guid, Connection connection, Worker owner) : base(guid, connection, owner)79 {80 }81 }82}83#nullable disable...

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Startup.cs

Source:Startup.cs Github

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1using Akka.Actor;2using Akka.Routing;3using Microsoft.AspNetCore.Builder;4using Microsoft.AspNetCore.Hosting;5using Microsoft.Extensions.Configuration;6using Microsoft.Extensions.DependencyInjection;7using Microsoft.Extensions.Hosting;8using Microsoft.OpenApi.Models;9using PrerenderPlaywright.Actors;10using PrerenderPlaywright.Clients;11using System.Linq;12namespace PrerenderPlaywright13{14 public class Startup15 {16 private ActorSystem system;17 public Startup(IConfiguration configuration)18 { 19 Configuration = configuration;20 }21 public IConfiguration Configuration { get; }22 public void ConfigureServices(IServiceCollection services)23 {24 system = ActorSystem.Create("MySystem");25 services.AddSingleton<IProcessClient>(s => new ProcessClient());26 var activityObserverRef = system.ActorOf(BrowserObserverActor.Props());27 var workerNames = Enumerable.Range(1, 5).Select(n => $"worker-{n}");28 var workers = workerNames.Select(name => system.ActorOf(PrerenderActor.Props(activityObserverRef), name));29 var group = new RoundRobinGroup(workers.Select(w => w.Path.ToStringWithAddress()));30 var groupRef = system.ActorOf(Props.Empty.WithRouter(group));31 services.AddSingleton<IRenderingClient>(s => new RenderingClient(groupRef));32 services.AddSingleton<IBrowserClient>(s => new BrowserClient(activityObserverRef)); 33 services.AddControllers();34 services.AddSwaggerGen(c => c.SwaggerDoc("v1", new OpenApiInfo { Title = "PrerenderDotNet", Version = "v1" }));35 }36 public void Configure(IApplicationBuilder app, IHostApplicationLifetime applicationLifetime, IWebHostEnvironment env)37 {38 applicationLifetime.ApplicationStopping.Register(OnShutdown);39 if (env.IsDevelopment())40 {41 app.UseDeveloperExceptionPage(); 42 }43 app.UseSwagger();44 app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "PrerenderDotNet v1"));45 app.UseRouting();46 app.UseAuthorization();47 app.UseEndpoints(endpoints => endpoints.MapControllers());48 }49 private void OnShutdown()50 {51 system?.Dispose();52 }53 }54}...

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WorkerChannel.cs

Source:WorkerChannel.cs Github

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...25using System.Text.Json;26using Microsoft.Playwright.Core;27namespace Microsoft.Playwright.Transport.Channels28{29 internal partial class WorkerChannel30 {31 internal override void OnMessage(string method, JsonElement? serverParams)32 {33 switch (method)34 {35 case "close":36 OnClose();37 break;38 }39 }40 }41}...

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Function1.cs

Source:Function1.cs Github

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...8using Microsoft.Extensions.Logging;9using Newtonsoft.Json;10using Microsoft.Playwright;11using System.Net;12using Microsoft.Azure.Functions.Worker.Http;13namespace PlayWrightLinuxNet614{15 public static class Function116 {17 [FunctionName("Function1")]18 public static async Task<IActionResult> Run(19 [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,20 ILogger log)21 {22 using var playwright = await Playwright.CreateAsync();23 await using var browser = await playwright.Chromium.LaunchAsync();24 var page = await browser.NewPageAsync();25 await page.GotoAsync("https://playwright.dev/dotnet");26 var screenshot = await page.ScreenshotAsync();...

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Worker

Using AI Code Generation

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1using Microsoft.Playwright.Core;2using Microsoft.Playwright;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Channels;5using Microsoft.Playwright.Transport.Protocol;6using Microsoft.Playwright.Transport.Protocol.Channels;7using Microsoft.Playwright.Transport.Protocol.Models;8using Microsoft.Playwright.Transport.Protocol.Serializers;9using Microsoft.Playwright.Transport.Protocol.Streams;10using Microsoft.Playwright.Transport.Protocol.Streams.Channels;11using Microsoft.Playwright.Transport.Protocol.Streams.Models;12using Microsoft.Playwright.Transport.Protocol.Streams.Serializers;13using Microsoft.Playwright.Core;14using Microsoft.Playwright;15using Microsoft.Playwright.Transport;16using Microsoft.Playwright.Transport.Channels;17using Microsoft.Playwright.Transport.Protocol;18using Microsoft.Playwright.Transport.Protocol.Channels;19using Microsoft.Playwright.Transport.Protocol.Models;20using Microsoft.Playwright.Transport.Protocol.Serializers;21using Microsoft.Playwright.Transport.Protocol.Streams;

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Worker

Using AI Code Generation

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1using Microsoft.Playwright;2await using var playwright = await Playwright.CreateAsync();3var browser = await playwright.Chromium.LaunchAsync();4var page = await browser.NewPageAsync();5await page.ScreenshotAsync(path: "example.png");6await browser.CloseAsync();7using Microsoft.Playwright;8await using var playwright = await Playwright.CreateAsync();9var browser = await playwright.Firefox.LaunchAsync();10var page = await browser.NewPageAsync();11await page.ScreenshotAsync(path: "example.png");12await browser.CloseAsync();13using Microsoft.Playwright;14await using var playwright = await Playwright.CreateAsync();15var browser = await playwright.Webkit.LaunchAsync();16var page = await browser.NewPageAsync();17await page.ScreenshotAsync(path: "example.png");18await browser.CloseAsync();19using Microsoft.Playwright;20await using var playwright = await Playwright.CreateAsync();21var browser = await playwright.Chromium.LaunchAsync();22var context = await browser.NewContextAsync();23var page = await context.NewPageAsync();24await page.ScreenshotAsync(path: "example.png");25await browser.CloseAsync();26using Microsoft.Playwright;27await using var playwright = await Playwright.CreateAsync();28var browser = await playwright.Chromium.LaunchAsync();29var context = await browser.NewContextAsync();30var page = await context.NewPageAsync();31await page.ScreenshotAsync(path: "example.png");32await browser.CloseAsync();33using Microsoft.Playwright;34await using var playwright = await Playwright.CreateAsync();35var browser = await playwright.Chromium.LaunchAsync();36var context = await browser.NewContextAsync();37var page = await context.NewPageAsync();

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Worker

Using AI Code Generation

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1using Microsoft.Playwright.Core;2using Microsoft.Playwright;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Protocol;5using Microsoft.Playwright.Transport.Channels;6using Microsoft.Playwright.Transport.Channels.Protocol;7using Microsoft.Playwright.Transport.Channels.Base;8using Microsoft.Playwright.Transport.Channels.Connections;9using Microsoft.Playwright.Transport.Channels.Messages;10using Microsoft.Playwright.Transport.Channels.Playwright;11using Microsoft.Playwright.Transport.Channels.Playwright.Protocol;12using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages;13using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Base;14using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Channel;15using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Connection;16using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright;17using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright.Protocol;18using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright.Protocol.Messages;

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Worker

Using AI Code Generation

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1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 using var playwright = await Playwright.CreateAsync();9 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync(new PageScreenshotOptions { Path = "example.png" });14 }15 }16}

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Worker

Using AI Code Generation

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1using Microsoft.Playwright.Core;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 using var playwright = await Playwright.CreateAsync();9 using var browser = await playwright.Chromium.LaunchAsync();10 using var context = await browser.NewContextAsync();11 var page = await context.NewPageAsync();12 await page.ScreenshotAsync("bing.png");13 Console.WriteLine("Done");14 }15 }16}17using Microsoft.Playwright;18using System;19using System.Threading.Tasks;20{21 {22 static async Task Main(string[] args)23 {24 using var playwright = await Playwright.CreateAsync();25 using var browser = await playwright.Chromium.LaunchAsync();26 using var context = await browser.NewContextAsync();27 var page = await context.NewPageAsync();28 await page.ScreenshotAsync("bing.png");29 Console.WriteLine("Done");30 }31 }32}

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Worker

Using AI Code Generation

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1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 using var playwright = await Playwright.CreateAsync();9 await using var browser = await playwright.Chromium.LaunchAsync();10 var page = await browser.NewPageAsync();11 await page.ScreenshotAsync("screenshot.png");12 }13 }14}15using Microsoft.Playwright;16using System;17using System.Threading.Tasks;18{19 {20 static async Task Main(string[] args)21 {22 using var playwright = await Playwright.CreateAsync();23 await using var browser = await playwright.Chromium.LaunchAsync();24 var page = await browser.NewPageAsync();25 await page.ScreenshotAsync("screenshot.png");26 }27 }28}

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Worker

Using AI Code Generation

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1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 using var playwright = await Playwright.CreateAsync();9 using var browser = await playwright.Chromium.LaunchAsync();10 var page = await browser.NewPageAsync();11 await page.ScreenshotAsync("screenshot.png");12 Console.WriteLine("Hello World!");13 }14 }15}16using Microsoft.Playwright;17using System;18using System.Threading.Tasks;19{20 {21 static async Task Main(string[] args)22 {23 using var playwright = await Playwright.CreateAsync();24 using var browser = await playwright.Chromium.LaunchAsync();25 var page = await browser.NewPageAsync();

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Worker

Using AI Code Generation

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1using Microsoft.Playwright.Core;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 var playwright = await Playwright.CreateAsync();9 var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync(new PageScreenshotOptions14 {15 });16 await browser.CloseAsync();17 }18 }19}

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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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