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

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

Connection.cs

Source:Connection.cs

...291                    break;292                case ChannelOwnerType.WritableStream:293                    result = new WritableStream(parent, guid);294                    break;295                case ChannelOwnerType.Tracing:296                    result = new Tracing(parent, guid);297                    break;298                default:299                    TraceMessage("pw:dotnet", "Missing type " + type);300                    break;301            }302#pragma warning restore CA2000303            Objects.TryAdd(guid, result);304            OnObjectCreated(guid, result);305        }306        private void DoClose(Exception ex)307        {308            TraceMessage("pw:dotnet", $"Connection Close: {ex.Message}\n{ex.StackTrace}");309            DoClose(ex.Message);310        }...

BrowserContext.cs

Source:BrowserContext.cs

...40    {41        private readonly TaskCompletionSource<bool> _closeTcs = new();42        private readonly Dictionary<string, Delegate> _bindings = new();43        private readonly BrowserContextInitializer _initializer;44        private readonly ITracing _tracing;45        private List<RouteSetting> _routes = new();46        private float? _defaultNavigationTimeout;47        private float? _defaultTimeout;48        internal BrowserContext(IChannelOwner parent, string guid, BrowserContextInitializer initializer) : base(parent, guid)49        {50            Channel = new(guid, parent.Connection, this);51            Channel.Close += (_, _) => OnClose();52            Channel.Page += Channel_OnPage;53            Channel.BindingCall += Channel_BindingCall;54            Channel.Route += Channel_Route;55            Channel.RequestFailed += (_, e) =>56            {57                e.Request.Failure = e.FailureText;58                e.Request.Timing.ResponseEnd = e.ResponseEndTiming;59                RequestFailed?.Invoke(this, e.Request);60                e.Page?.FireRequestFailed(e.Request);61                e.Response?.ReportFinished(e.FailureText);62            };63            Channel.Request += (_, e) =>64            {65                Request?.Invoke(this, e.Request);66                e.Page?.FireRequest(e.Request);67            };68            Channel.RequestFinished += (_, e) =>69            {70                e.Request.Timing.ResponseEnd = e.ResponseEndTiming;71                e.Request.Sizes = e.RequestSizes;72                RequestFinished?.Invoke(this, e.Request);73                e.Page?.FireRequestFinished(e.Request);74                e.Response?.ReportFinished();75            };76            Channel.Response += (_, e) =>77            {78                Response?.Invoke(this, e.Response);79                e.Page?.FireResponse(e.Response);80            };81            _tracing = initializer.Tracing;82            _initializer = initializer;83            Browser = parent as IBrowser;84        }85        public event EventHandler<IBrowserContext> Close;86        public event EventHandler<IPage> Page;87        public event EventHandler<IRequest> Request;88        public event EventHandler<IRequest> RequestFailed;89        public event EventHandler<IRequest> RequestFinished;90        public event EventHandler<IResponse> Response;91        public ITracing Tracing92        {93            get => _tracing;94            set => throw new NotSupportedException();95        }96        ChannelBase IChannelOwner.Channel => Channel;97        IChannel<BrowserContext> IChannelOwner<BrowserContext>.Channel => Channel;98        public IBrowser Browser { get; }99        public IReadOnlyList<IPage> Pages => PagesList;100        internal float DefaultNavigationTimeout101        {102            get => _defaultNavigationTimeout ?? PlaywrightImpl.DefaultTimeout;103            set104            {105                _defaultNavigationTimeout = value;...

BrowserType.cs

Source:BrowserType.cs

...124                RecordVideoSize = options.RecordVideoSize,125                RecordHarPath = options.RecordHarPath,126                RecordHarOmitContent = options.RecordHarOmitContent,127            };128            ((Core.Tracing)context.Tracing).LocalUtils = Playwright.Utils;129            return context;130        }131        public async Task<IBrowser> ConnectAsync(string wsEndpoint, BrowserTypeConnectOptions options = null)132        {133            options ??= new BrowserTypeConnectOptions();134            var headers = new List<KeyValuePair<string, string>>(options.Headers ?? new Dictionary<string, string>())135            {136                new KeyValuePair<string, string>("x-playwright-browser", Name),137            }.ToDictionary(pair => pair.Key, pair => pair.Value);138            JsonPipe pipe = (await _channel.ConnectAsync(wsEndpoint: wsEndpoint, headers: headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false)).Object;139            void ClosePipe()140            {141                pipe.CloseAsync().IgnoreException();142            }...

Browser.cs

Source:Browser.cs

...101               baseUrl: options.BaseURL,102               strictSelectors: options.StrictSelectors,103               forcedColors: options.ForcedColors).ConfigureAwait(false)).Object;104            context.Options = options;105            ((Tracing)context.Tracing).LocalUtils = LocalUtils;106            BrowserContextsList.Add(context);107            return context;108        }109        public async Task<IPage> NewPageAsync(BrowserNewPageOptions options = default)110        {111            options ??= new();112            var contextOptions = new BrowserNewContextOptions()113            {114                AcceptDownloads = options.AcceptDownloads,115                IgnoreHTTPSErrors = options.IgnoreHTTPSErrors,116                BypassCSP = options.BypassCSP,117                ViewportSize = options.ViewportSize,118                ScreenSize = options.ScreenSize,119                UserAgent = options.UserAgent,...

BrowserChannel.cs

Source:BrowserChannel.cs

...141                "newContext",142                args);143        }144        internal Task CloseAsync() => Connection.SendMessageToServerAsync<BrowserContextChannel>(Guid, "close", null);145        internal Task StartTracingAsync(IPage page, bool screenshots, string path, IEnumerable<string> categories)146        {147            var args = new Dictionary<string, object>148            {149                ["screenshots"] = screenshots,150                ["path"] = path,151                ["page"] = page,152                ["categories"] = categories,153            };154            return Connection.SendMessageToServerAsync(Guid, "crStartTracing", args);155        }156        internal async Task<string> StopTracingAsync()157            => (await Connection.SendMessageToServerAsync(Guid, "crStopTracing", null).ConfigureAwait(false))?.GetProperty("binary").ToString();158    }159}...

Tracing.cs

Source:Tracing.cs

...26using Microsoft.Playwright.Transport.Channels;27using Microsoft.Playwright.Transport.Protocol;28namespace Microsoft.Playwright.Core29{30    internal class Tracing : ChannelOwnerBase, IChannelOwner<Tracing>, ITracing31    {32        private readonly TracingChannel _channel;33        public Tracing(IChannelOwner parent, string guid) : base(parent, guid)34        {35            _channel = new(guid, parent.Connection, this);36        }37        internal LocalUtils LocalUtils { get; set; }38        ChannelBase IChannelOwner.Channel => _channel;39        IChannel<Tracing> IChannelOwner<Tracing>.Channel => _channel;40        public async Task StartAsync(TracingStartOptions options = default)41        {42            await _channel.TracingStartAsync(43                        name: options?.Name,44                        title: options?.Title,45                        screenshots: options?.Screenshots,46                        snapshots: options?.Snapshots,47                        sources: options?.Sources).ConfigureAwait(false);48            await _channel.StartChunkAsync(options?.Title).ConfigureAwait(false);49        }50        public Task StartChunkAsync() => StartChunkAsync();51        public Task StartChunkAsync(TracingStartChunkOptions options) => _channel.StartChunkAsync(title: options?.Title);52        public async Task StopChunkAsync(TracingStopChunkOptions options = null)53        {54            await DoStopChunkAsync(filePath: options.Path).ConfigureAwait(false);55        }56        public async Task StopAsync(TracingStopOptions options = default)57        {58            await StopChunkAsync(new() { Path = options?.Path }).ConfigureAwait(false);59            await _channel.TracingStopAsync().ConfigureAwait(false);60        }61        private async Task DoStopChunkAsync(string filePath)62        {63            bool isLocal = !_channel.Connection.IsRemote;64            var mode = "doNotSave";65            if (!string.IsNullOrEmpty(filePath))66            {67                if (isLocal)68                {69                    mode = "compressTraceAndSources";70                }71                else72                {73                    mode = "compressTrace";...

TracingChannel.cs

Source:TracingChannel.cs

...27using Microsoft.Playwright.Core;28using Microsoft.Playwright.Helpers;29namespace Microsoft.Playwright.Transport.Channels30{31    internal class TracingChannel : Channel<Tracing>32    {33        public TracingChannel(string guid, Connection connection, Tracing owner) : base(guid, connection, owner)34        {35        }36        internal Task TracingStartAsync(string name, string title, bool? screenshots, bool? snapshots, bool? sources)37            => Connection.SendMessageToServerAsync(38                Guid,39                "tracingStart",40                new Dictionary<string, object>41                {42                    ["name"] = name,43                    ["title"] = title,44                    ["screenshots"] = screenshots,45                    ["snapshots"] = snapshots,46                    ["sources"] = sources,47                });48        internal Task TracingStopAsync()49            => Connection.SendMessageToServerAsync(50                Guid,51                "tracingStop");52        internal Task StartChunkAsync(string title = null)53            => Connection.SendMessageToServerAsync(Guid, "tracingStartChunk", new Dictionary<string, object>54            {55                ["title"] = title,56            });57        internal async Task<(Artifact Artifact, List<NameValueEntry> SourceEntries)> StopChunkAsync(string mode)58        {59            var result = await Connection.SendMessageToServerAsync(Guid, "tracingStopChunk", new Dictionary<string, object>60            {61                ["mode"] = mode,62            }).ConfigureAwait(false);...

BasePageModel.cs

Source:BasePageModel.cs

...18        {19            BasePagePath = basePagePath;20            FileSaveBasePath = fileSaveBasePath;21            Context = await Browser.NewContextAsync();22            await Context.Tracing.StartAsync(new TracingStartOptions23            {24                Screenshots = true,25                Snapshots = true,26                Sources = true27            });28            Page = await Context.NewPageAsync();29        }30        public async ValueTask DisposeAsync()31        {32            await Context.Tracing.StopAsync(new TracingStopOptions33            {34                Path = $"{FileSaveBasePath}\\{TraceFileName}.zip"35            });36            await Context.DisposeAsync();37        }38    }39}...

Tracing

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static async Task Main(string[] args)10        {11            var playwright = await Playwright.CreateAsync();12            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions13            {14                {15                    Categories = new[] { "devtools.timeline" }16                }17            });18            var page = await browser.NewPageAsync();19            await browser.CloseAsync();20        }21    }22}

Tracing

Using AI Code Generation

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("example.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            using var browser = await playwright.Chromium.LaunchAsync();24            var page = await browser.NewPageAsync();25            await page.ScreenshotAsync("example.png");26        }27    }28}

Tracing

Using AI Code Generation

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.Protocol;8using Microsoft.Playwright.Transport.Protocol.Converters;9using Microsoft.Playwright.Transport.Protocol.Serializers;10using Microsoft.Playwright.Transport.Protocol.Serializers.Converters;11using Microsoft.Playwright.Transport.Protocol.Serializers.Generators;12using Microsoft.Playwright.Transport.Protocol.Serializers.Generators.Channels;13using Microsoft.Playwright.Transport.Protocol.Serializers.Generators.Channels.Protocol;14using Microsoft.Playwright.Transport.Protocol.Serializers.Generators.Protocol;15using Microsoft.Playwright.Transport.Protocol.Serializers.Generators.Protocol.Converters;16using Microsoft.Playwright.Transport.Protocol.Serializers.Generators.Protocol.Serializers;17using Microsoft.Playwright.Transport.Protocol.Serializers.Protocol;18using Microsoft.Playwright.Transport.Protocol.Serializers.Protocol.Converters;

Tracing

Using AI Code Generation

1using Microsoft.Playwright;2var playwright = await Playwright.CreateAsync();3var browser = await playwright.Chromium.LaunchAsync();4var page = await browser.NewPageAsync();5await page.Tracing.StartAsync(new TracingStartOptions6{7});8await page.Tracing.StopAsync();9using Microsoft.Playwright;10var playwright = await Playwright.CreateAsync();11var browser = await playwright.Chromium.LaunchAsync();12var page = await browser.NewPageAsync();13await page.Tracing.StartAsync(new TracingStartOptions14{15});16await page.Tracing.StopAsync();

Tracing

Using AI Code Generation

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            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            var tracing = await page.Context.Tracing.StartAsync(new TracingStartOptions12            {13            });14            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });15            await tracing.StopAsync();16            await browser.CloseAsync();17        }18    }19}20using Microsoft.Playwright;21using System;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            using var playwright = await Playwright.CreateAsync();28            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });29            var page = await browser.NewPageAsync();30            var tracing = await page.Context.Tracing.StartAsync(new TracingStartOptions31            {32            });33            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });34            await tracing.StopAsync();35            await browser.CloseAsync();36        }37    }38}

Tracing

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3{4    {5        static void Main(string[] args)6        {7            Console.WriteLine("Hello World!");8            var playwright = Microsoft.Playwright.Core.Playwright.CreateAsync().GetAwaiter().GetResult();9            var browser = playwright.Chromium.LaunchAsync(new LaunchOptions10            {11                {12                }13            }).GetAwaiter().GetResult();14            var context = browser.NewContextAsync().GetAwaiter().GetResult();15            var page = context.NewPageAsync().GetAwaiter().GetResult();16            Console.WriteLine(page.TitleAsync().GetAwaiter().GetResult());17            browser.CloseAsync().GetAwaiter().GetResult();18        }19    }20}

Tracing

Using AI Code Generation

1using Microsoft.Playwright.Core;2using Microsoft.Playwright.Core.Helpers;3using System;4using System.Collections.Generic;5using System.IO;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9{10    {11        static async Task Main(string[] args)12        {13            var playwright = await Playwright.CreateAsync();14            var browser = await playwright.Chromium.LaunchAsync();15            var page = await browser.NewPageAsync();16            var tracing = await page.Tracing.StartAsync(new TracingStartOptions17            {18            });19            await tracing.StopAsync(new TracingStopOptions20            {21                Path = Path.Combine(Directory.GetCurrentDirectory(), "trace.zip")22            });23            await browser.CloseAsync();24        }25    }26}27using Microsoft.Playwright;28using System;29using System.Collections.Generic;30using System.IO;31using System.Linq;32using System.Text;33using System.Threading.Tasks;34{35    {36        static async Task Main(string[] args)37        {38            var playwright = await Playwright.CreateAsync();39            var browser = await playwright.Chromium.LaunchAsync();40            var page = await browser.NewPageAsync();41            var tracing = await page.Tracing.StartAsync(new TracingStartOptions42            {43            });44            await tracing.StopAsync(new TracingStopOptions45            {46                Path = Path.Combine(Directory.GetCurrentDirectory(), "trace.zip")47            });48            await browser.CloseAsync();49        }50    }51}52using Microsoft.Playwright;53using PlaywrightSharp;54using System;55using System.Collections.Generic;56using System.IO;57using System.Linq;58using System.Text;59using System.Threading.Tasks;60{61    {62        static async Task Main(string[] args)63        {64            var playwright = await Playwright.CreateAsync();65            var browser = await playwright.Chromium.LaunchAsync();66            var page = await browser.NewPageAsync();67            var tracing = await page.Tracing.StartAsync(new TracingStartOptions

Tracing

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Diagnostics;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            await using var playwright = await Playwright.CreateAsync();11            var browser = await playwright.Chromium.LaunchAsync(headless: false);12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.ScreenshotAsync(path: "google.png");15            await browser.CloseAsync();16        }17    }18}19using Microsoft.Playwright;20using System;21using System.Diagnostics;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            Console.WriteLine("Hello World!");28            await using var playwright = await Playwright.CreateAsync();29            var browser = await playwright.Chromium.LaunchAsync(headless: false);30            var context = await browser.NewContextAsync();31            var page = await context.NewPageAsync();32            await page.ScreenshotAsync(path: "google.png");33            await browser.CloseAsync();34        }35    }36}37using Microsoft.Playwright;38using System;39using System.Diagnostics;40using System.Threading.Tasks;41{42    {43        static async Task Main(string[] args)44        {45            Console.WriteLine("Hello World!");46            await using var playwright = await Playwright.CreateAsync();47            var browser = await playwright.Chromium.LaunchAsync(headless: false);48            var context = await browser.NewContextAsync();49            var page = await context.NewPageAsync();50            await page.ScreenshotAsync(path: "google.png");51            await browser.CloseAsync();52        }53    }54}55using Microsoft.Playwright;56using System;57using System.Diagnostics;58using System.Threading.Tasks;59{60    {61        static async Task Main(string[] args)62        {63            Console.WriteLine("

Tracing

Using AI Code Generation

1{2    {3        public static void Main(string[] args)4        {5            using var playwright = Microsoft.Playwright.Core.Playwright.CreateAsync().Result;6            var browser = playwright.Chromium.LaunchAsync(new Microsoft.Playwright.Core.LaunchOptions7            {8            }).Result;9            var page = browser.NewPageAsync().Result;10            page.ScreenshotAsync("screenshot.png").Wait();11            browser.CloseAsync().Wait();12        }13    }14}15{16    {17        public static void Main(string[] args)18        {19            using var playwright = Microsoft.Playwright.Playwright.CreateAsync().Result;20            var browser = playwright.Chromium.LaunchAsync(new Microsoft.Playwright.LaunchOptions21            {22            }).Result;23            var page = browser.NewPageAsync().Result;24            page.ScreenshotAsync("screenshot.png").Wait();25            browser.CloseAsync().Wait();26        }27    }28}29{30    {31        public static void Main(string[] args)32        {33            using var playwright = Microsoft.Playwright.Playwright.CreateAsync().Result;34            var browser = playwright.Chromium.LaunchAsync(new Microsoft.Playwright.LaunchOptions35            {36            }).Result;37            var page = browser.NewPageAsync().Result;38            page.ScreenshotAsync("screenshot.png").Wait();39            browser.CloseAsync().Wait();40        }41    }42}43{44    {45        public static void Main(string[] args)46        {47            using var playwright = Microsoft.Playwright.Playwright.CreateAsync().Result;48            var browser = playwright.Chromium.LaunchAsync(new Microsoft.Playwright.LaunchOptions49            {50            }).Result;51            var page = browser.NewPageAsync().Result;

Tracing

Using AI Code Generation

1using Microsoft.Playwright.Core;2{3    {4        static async Task Main(string[] args)5        {6            var playwright = await Playwright.CreateAsync();7            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions8            {9                {10                }11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });15            await browser.CloseAsync();16        }17    }18}19using Microsoft.Playwright.Core;20{21    {22        static async Task Main(string[] args)23        {24            var playwright = await Playwright.CreateAsync();25            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions26            {27                {28                }29            });30            var context = await browser.NewContextAsync();31            var page = await context.NewPageAsync();32            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });33            await browser.CloseAsync();34        }35    }36}37using Microsoft.Playwright.Core;38{39    {40        static async Task Main(string[] args)41        {42            var playwright = await Playwright.CreateAsync();43            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions44            {45                {46                }47            });

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:

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