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How to use Read method of Microsoft.Playwright.Core.Stream class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Stream.Read

BrowserTypeConnectTests.cs

Source:BrowserTypeConnectTests.cs

...329            string userPath = Path.Combine(tmpDir.Path, "these", "are", "directories", "download.txt");330            var download = downloadTask.Result;331            await download.SaveAsAsync(userPath);332            Assert.True(new FileInfo(userPath).Exists);333            Assert.AreEqual("Hello world", File.ReadAllText(userPath));334            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.PathAsync());335            Assert.AreEqual("Path is not available when connecting remotely. Use SaveAsAsync() to save a local copy.", exception.Message);336            await browser.CloseAsync();337        }338        [PlaywrightTest("browsertype-connect.spec.ts", "should error when saving download after deletion")]339        public async Task ShouldErrorWhenSavingDownloadAfterDeletion()340        {341            Server.SetRoute("/download", context =>342            {343                context.Response.Headers["Content-Type"] = "application/octet-stream";344                context.Response.Headers["Content-Disposition"] = "attachment";345                return context.Response.WriteAsync("Hello world");346            });347            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);348            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });349            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");350            var downloadTask = page.WaitForDownloadAsync();351            await TaskUtils.WhenAll(352                downloadTask,353                page.ClickAsync("a"));354            using var tmpDir = new TempDirectory();355            string userPath = Path.Combine(tmpDir.Path, "download.txt");356            var download = downloadTask.Result;357            await download.DeleteAsync();358            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.SaveAsAsync(userPath));359            StringAssert.Contains("Target page, context or browser has been closed", exception.Message);360            await browser.CloseAsync();361        }362        [PlaywrightTest("browsertype-connect.spec.ts", "should save har")]363        public async Task ShouldSaveHar()364        {365            using var tempDirectory = new TempDirectory();366            var harPath = tempDirectory.Path + "/test.har";367            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);368            var context = await browser.NewContextAsync(new()369            {370                RecordHarPath = harPath371            });372            var page = await context.NewPageAsync();373            await page.GotoAsync(Server.EmptyPage);374            await context.CloseAsync();375            await browser.CloseAsync();376            Assert.That(harPath, Does.Exist);377            var logString = System.IO.File.ReadAllText(harPath);378            StringAssert.Contains(Server.EmptyPage, logString);379        }380        [PlaywrightTest("browsertype-connect.spec.ts", "should record trace with sources")]381        public async Task ShouldRecordContextTraces()382        {383            using var tempDirectory = new TempDirectory();384            var tracePath = tempDirectory.Path + "/trace.zip";385            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);386            var context = await browser.NewContextAsync();387            var page = await context.NewPageAsync();388            await context.Tracing.StartAsync(new() { Sources = true });389            await page.GotoAsync(Server.EmptyPage);390            await page.SetContentAsync("<button>Click</button>");391            await page.ClickAsync("button");392            await context.Tracing.StopAsync(new TracingStopOptions { Path = tracePath });393            await browser.CloseAsync();394            Assert.That(tracePath, Does.Exist);395            ZipFile.ExtractToDirectory(tracePath, tempDirectory.Path);396            Assert.That(tempDirectory.Path + "/trace.trace", Does.Exist);397            Assert.That(tempDirectory.Path + "/trace.network", Does.Exist);398            Assert.AreEqual(1, Directory.GetFiles(Path.Join(tempDirectory.Path, "resources"), "*.txt").Length);399        }400        [PlaywrightTest("browsertype-connect.spec.ts", "should upload large file")]401        [Skip(SkipAttribute.Targets.Firefox, SkipAttribute.Targets.Webkit)]402        public async Task ShouldUploadLargeFile()403        {404            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);405            var context = await browser.NewContextAsync();406            var page = await context.NewPageAsync();407            await page.GotoAsync(Server.Prefix + "/input/fileupload.html");408            using var tmpDir = new TempDirectory();409            var filePath = Path.Combine(tmpDir.Path, "200MB");410            using (var stream = File.OpenWrite(filePath))411            {412                var str = new string('a', 4 * 1024);413                for (var i = 0; i < 50 * 1024; i++)414                {415                    await stream.WriteAsync(Encoding.UTF8.GetBytes(str));416                }417            }418            var input = page.Locator("input[type=file]");419            var events = await input.EvaluateHandleAsync(@"e => {420                const events = [];421                e.addEventListener('input', () => events.push('input'));422                e.addEventListener('change', () => events.push('change'));423                return events;424            }");425            await input.SetInputFilesAsync(filePath);426            Assert.AreEqual(await input.EvaluateAsync<string>("e => e.files[0].name"), "200MB");427            Assert.AreEqual(await events.EvaluateAsync<string[]>("e => e"), new[] { "input", "change" });428            var (file0Name, file0Size) = await TaskUtils.WhenAll(429               Server.WaitForRequest("/upload", request => (request.Form.Files[0].FileName, request.Form.Files[0].Length)),430               page.ClickAsync("input[type=submit]")431            );432            Assert.AreEqual("200MB", file0Name);433            Assert.AreEqual(200 * 1024 * 1024, file0Size);434        }435        private class RemoteServer436        {437            private Process Process { get; set; }438            public string WSEndpoint { get; set; }439            internal RemoteServer(string browserName)440            {441                try442                {443                    var startInfo = new ProcessStartInfo(Driver.GetExecutablePath(), $"launch-server --browser {browserName}")444                    {445                        UseShellExecute = false,446                        RedirectStandardOutput = true,447                    };448                    foreach (var pair in Driver.GetEnvironmentVariables())449                    {450                        startInfo.EnvironmentVariables[pair.Key] = pair.Value;451                    }452                    Process = new()453                    {454                        StartInfo = startInfo,455                    };456                    Process.Start();457                    WSEndpoint = Process.StandardOutput.ReadLine();458                    if (WSEndpoint != null && !WSEndpoint.StartsWith("ws://"))459                    {460                        throw new PlaywrightException("Invalid web socket address: " + WSEndpoint);461                    }462                }463                catch (IOException ex)464                {465                    throw new PlaywrightException("Failed to launch server", ex);466                }467            }468            internal void Close()469            {470                Process.Kill(true);471                Process.WaitForExit();...

DownloadTests.cs

Source:DownloadTests.cs

...79            Assert.AreEqual($"{Server.Prefix}/downloadWithFilename", download.Url);80            Assert.AreEqual("file.txt", download.SuggestedFilename);81            string path = await download.PathAsync();82            Assert.True(new FileInfo(path).Exists);83            Assert.AreEqual("Hello world", File.ReadAllText(path));84        }85        [PlaywrightTest("download.spec.ts", "should report downloads with acceptDownloads: true")]86        public async Task ShouldReportDownloadsWithAcceptDownloadsTrue()87        {88            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });89            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");90            var download = await page.RunAndWaitForDownloadAsync(async () =>91            {92                await page.ClickAsync("a");93            });94            string path = await download.PathAsync();95            Assert.True(new FileInfo(path).Exists);96            Assert.AreEqual("Hello world", File.ReadAllText(path));97        }98        [PlaywrightTest("download.spec.ts", "should save to user-specified path")]99        public async Task ShouldSaveToUserSpecifiedPath()100        {101            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });102            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");103            var download = await page.RunAndWaitForDownloadAsync(async () =>104            {105                await page.ClickAsync("a");106            });107            using var tmpDir = new TempDirectory();108            string userPath = Path.Combine(tmpDir.Path, "download.txt");109            await download.SaveAsAsync(userPath);110            Assert.True(new FileInfo(userPath).Exists);111            Assert.AreEqual("Hello world", File.ReadAllText(userPath));112            await page.CloseAsync();113        }114        [PlaywrightTest("download.spec.ts", "should save to user-specified path without updating original path")]115        public async Task ShouldSaveToUserSpecifiedPathWithoutUpdatingOriginalPath()116        {117            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });118            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");119            var download = await page.RunAndWaitForDownloadAsync(async () =>120            {121                await page.ClickAsync("a");122            });123            using var tmpDir = new TempDirectory();124            string userPath = Path.Combine(tmpDir.Path, "download.txt");125            await download.SaveAsAsync(userPath);126            Assert.True(new FileInfo(userPath).Exists);127            Assert.AreEqual("Hello world", File.ReadAllText(userPath));128            string originalPath = await download.PathAsync();129            Assert.True(new FileInfo(originalPath).Exists);130            Assert.AreEqual("Hello world", File.ReadAllText(originalPath));131            await page.CloseAsync();132        }133        [PlaywrightTest("download.spec.ts", "should save to two different paths with multiple saveAs calls")]134        public async Task ShouldSaveToTwoDifferentPathsWithMultipleSaveAsCalls()135        {136            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });137            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");138            var download = await page.RunAndWaitForDownloadAsync(async () =>139            {140                await page.ClickAsync("a");141            });142            using var tmpDir = new TempDirectory();143            string userPath = Path.Combine(tmpDir.Path, "download.txt");144            await download.SaveAsAsync(userPath);145            Assert.True(new FileInfo(userPath).Exists);146            Assert.AreEqual("Hello world", File.ReadAllText(userPath));147            string anotherUserPath = Path.Combine(tmpDir.Path, "download (2).txt");148            await download.SaveAsAsync(anotherUserPath);149            Assert.True(new FileInfo(anotherUserPath).Exists);150            Assert.AreEqual("Hello world", File.ReadAllText(anotherUserPath));151            await page.CloseAsync();152        }153        [PlaywrightTest("download.spec.ts", "should save to overwritten filepath")]154        public async Task ShouldSaveToOverwrittenFilepath()155        {156            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });157            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");158            var downloadTask = page.WaitForDownloadAsync();159            await TaskUtils.WhenAll(160                downloadTask,161                page.ClickAsync("a"));162            using var tmpDir = new TempDirectory();163            string userPath = Path.Combine(tmpDir.Path, "download.txt");164            var download = downloadTask.Result;165            await download.SaveAsAsync(userPath);166            Assert.AreEqual(1, new DirectoryInfo(tmpDir.Path).GetFiles().Length);167            await download.SaveAsAsync(userPath);168            Assert.AreEqual(1, new DirectoryInfo(tmpDir.Path).GetFiles().Length);169            await page.CloseAsync();170        }171        [PlaywrightTest("download.spec.ts", "should create subdirectories when saving to non-existent user-specified path")]172        public async Task ShouldCreateSubdirectoriesWhenSavingToNonExistentUserSpecifiedPath()173        {174            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });175            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");176            var downloadTask = page.WaitForDownloadAsync();177            await TaskUtils.WhenAll(178                downloadTask,179                page.ClickAsync("a"));180            using var tmpDir = new TempDirectory();181            string userPath = Path.Combine(tmpDir.Path, "these", "are", "directories", "download.txt");182            var download = downloadTask.Result;183            await download.SaveAsAsync(userPath);184            Assert.True(new FileInfo(userPath).Exists);185            Assert.AreEqual("Hello world", File.ReadAllText(userPath));186            await page.CloseAsync();187        }188        [PlaywrightTest("download.spec.ts", "should error when saving with downloads disabled")]189        public async Task ShouldErrorWhenSavingWithDownloadsDisabled()190        {191            var page = await Browser.NewPageAsync(new() { AcceptDownloads = false });192            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");193            var downloadTask = page.WaitForDownloadAsync();194            await TaskUtils.WhenAll(195                downloadTask,196                page.ClickAsync("a"));197            using var tmpDir = new TempDirectory();198            string userPath = Path.Combine(tmpDir.Path, "download.txt");199            var download = downloadTask.Result;200            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.SaveAsAsync(userPath));201            StringAssert.Contains("Pass { acceptDownloads: true } when you are creating your browser context", exception.Message);202        }203        [PlaywrightTest("download.spec.ts", "should error when saving after deletion")]204        public async Task ShouldErrorWhenSavingAfterDeletion()205        {206            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });207            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");208            var downloadTask = page.WaitForDownloadAsync();209            await TaskUtils.WhenAll(210                downloadTask,211                page.ClickAsync("a"));212            using var tmpDir = new TempDirectory();213            string userPath = Path.Combine(tmpDir.Path, "download.txt");214            var download = downloadTask.Result;215            await download.DeleteAsync();216            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.SaveAsAsync(userPath));217            StringAssert.Contains("Target page, context or browser has been closed", exception.Message);218        }219        [PlaywrightTest("download.spec.ts", "should report non-navigation downloads")]220        public async Task ShouldReportNonNavigationDownloads()221        {222            Server.SetRoute("/download", context =>223            {224                context.Response.Headers["Content-Type"] = "application/octet-stream";225                return context.Response.WriteAsync("Hello world");226            });227            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });228            await page.GotoAsync(Server.EmptyPage);229            await page.SetContentAsync($"<a download=\"file.txt\" href=\"{Server.Prefix}/download\">download</a>");230            var downloadTask = page.WaitForDownloadAsync();231            await TaskUtils.WhenAll(232                downloadTask,233                page.ClickAsync("a"));234            var download = downloadTask.Result;235            Assert.AreEqual("file.txt", download.SuggestedFilename);236            string path = await download.PathAsync();237            Assert.True(new FileInfo(path).Exists);238            Assert.AreEqual("Hello world", File.ReadAllText(path));239            await page.CloseAsync();240        }241        [PlaywrightTest("download.spec.ts", "should report download path within page.on('download', â¦) handler for Files")]242        public async Task ShouldReportDownloadPathWithinPageOnDownloadHandlerForFiles()243        {244            var downloadPathTcs = new TaskCompletionSource<string>();245            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });246            page.Download += async (_, e) =>247            {248                downloadPathTcs.TrySetResult(await e.PathAsync());249            };250            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");251            await page.ClickAsync("a");252            string path = await downloadPathTcs.Task;253            Assert.AreEqual("Hello world", File.ReadAllText(path));254            await page.CloseAsync();255        }256        [PlaywrightTest("download.spec.ts", "should report download path within page.on('download', â¦) handler for Blobs")]257        public async Task ShouldReportDownloadPathWithinPageOnDownloadHandlerForBlobs()258        {259            var downloadPathTcs = new TaskCompletionSource<string>();260            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });261            page.Download += async (_, e) =>262            {263                downloadPathTcs.TrySetResult(await e.PathAsync());264            };265            await page.GotoAsync(Server.Prefix + "/download-blob.html");266            await page.ClickAsync("a");267            string path = await downloadPathTcs.Task;268            Assert.AreEqual("Hello world", File.ReadAllText(path));269            await page.CloseAsync();270        }271        [PlaywrightTest("download.spec.ts", "should report alt-click downloads")]272        [Skip(SkipAttribute.Targets.Firefox, SkipAttribute.Targets.Webkit)]273        public async Task ShouldReportAltClickDownloads()274        {275            Server.SetRoute("/download", context =>276            {277                context.Response.Headers["Content-Type"] = "application/octet-stream";278                return context.Response.WriteAsync("Hello world");279            });280            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });281            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");282            var downloadTask = page.WaitForDownloadAsync();283            await TaskUtils.WhenAll(284                downloadTask,285                page.ClickAsync("a", new() { Modifiers = new[] { KeyboardModifier.Alt } }));286            var download = downloadTask.Result;287            string path = await download.PathAsync();288            Assert.True(new FileInfo(path).Exists);289            Assert.AreEqual("Hello world", File.ReadAllText(path));290        }291        [PlaywrightTest("download.spec.ts", "should report new window downloads")]292        public async Task ShouldReportNewWindowDownloads()293        {294            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });295            await page.SetContentAsync($"<a target=_blank href=\"{Server.Prefix}/download\">download</a>");296            var downloadTask = page.WaitForDownloadAsync();297            await TaskUtils.WhenAll(298                downloadTask,299                page.ClickAsync("a"));300            var download = downloadTask.Result;301            string path = await download.PathAsync();302            Assert.True(new FileInfo(path).Exists);303            Assert.AreEqual("Hello world", File.ReadAllText(path));304        }305        [PlaywrightTest("download.spec.ts", "should delete file")]306        public async Task ShouldDeleteFile()307        {308            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });309            await page.SetContentAsync($"<a target=_blank href=\"{Server.Prefix}/download\">download</a>");310            var downloadTask = page.WaitForDownloadAsync();311            await TaskUtils.WhenAll(312                downloadTask,313                page.ClickAsync("a"));314            var download = downloadTask.Result;315            string path = await download.PathAsync();316            Assert.True(new FileInfo(path).Exists);317            await download.DeleteAsync();318            Assert.False(new FileInfo(path).Exists);319            await page.CloseAsync();320        }321        [PlaywrightTest("download.spec.ts", "should expose stream")]322        public async Task ShouldExposeStream()323        {324            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });325            await page.SetContentAsync($"<a target=_blank href=\"{Server.Prefix}/downloadLarge\">download</a>");326            var downloadTask = page.WaitForDownloadAsync();327            await TaskUtils.WhenAll(328                downloadTask,329                page.ClickAsync("a"));330            var download = downloadTask.Result;331            var expected = string.Empty;332            for (var i = 0; i < 10_000; i++)333            {334                expected += $"a{i}";335            }336            using (var stream = await download.CreateReadStreamAsync())337            {338                Assert.AreEqual(expected, await new StreamReader(stream).ReadToEndAsync());339            }340            await page.CloseAsync();341        }342        [PlaywrightTest("download.spec.ts", "should delete downloads on context destruction")]343        public async Task ShouldDeleteDownloadsOnContextDestruction()344        {345            var page = await Browser.NewPageAsync(new() { AcceptDownloads = true });346            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");347            var download1Task = page.WaitForDownloadAsync();348            await TaskUtils.WhenAll(349                download1Task,350                page.ClickAsync("a"));351            var download2Task = page.WaitForDownloadAsync();352            await TaskUtils.WhenAll(...

WritableStream.cs

Source:WritableStream.cs

...49        internal WritableStreamImpl(WritableStream stream)50        {51            _stream = stream;52        }53        public override bool CanRead => throw new NotImplementedException();54        public override bool CanSeek => throw new NotImplementedException();55        public override bool CanWrite => true;56        public override long Length => throw new NotImplementedException();57        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }58        public override void Flush() => throw new NotImplementedException();59        public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();60        public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) =>61            throw new NotImplementedException();62        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);63        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();64        public override void SetLength(long value) => throw new NotImplementedException();65        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();66        public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)67        {68            await this._stream.WriteAsync(Convert.ToBase64String(buffer)).ConfigureAwait(false);69        }70    }71}...

SetInputFilesHelpers.cs

Source:SetInputFilesHelpers.cs

...42                {43                    var streams = await files.SelectAsync(async f =>44                    {45                        var stream = await context.Channel.CreateTempFileAsync(Path.GetFileName(f)).ConfigureAwait(false);46                        using var fileStream = File.OpenRead(f);47                        await fileStream.CopyToAsync(stream.WritableStreamImpl).ConfigureAwait(false);48                        return stream;49                    }).ConfigureAwait(false);50                    return new() { Streams = streams.ToArray() };51                }52                return new() { LocalPaths = files.Select(f => Path.GetFullPath(f)).ToArray() };53            }54            return new()55            {56                Files = files.Select(file =>57                {58                    var fileInfo = new FileInfo(file);59                    return new InputFilesList()60                    {61                        Name = fileInfo.Name,62                        Buffer = Convert.ToBase64String(File.ReadAllBytes(fileInfo.FullName)),63                        MimeType = file.MimeType(),64                    };65                }),66            };67        }68        public static SetInputFilesFiles ConvertInputFiles(IEnumerable<FilePayload> files)69        {70            var hasLargeBuffer = files.Any(f => f.Buffer?.Length > SizeLimitInBytes);71            if (hasLargeBuffer)72            {73                throw new NotSupportedException("Cannot set buffer larger than 50Mb, please write it to a file and pass its path instead.");74            }75            return new()76            {...

Artifact.cs

Source:Artifact.cs

...68                    await stream.StreamImpl.CopyToAsync(fileStream).ConfigureAwait(false);69                }70            }71        }72        public async Task<System.IO.Stream> CreateReadStreamAsync()73        {74            var stream = await _channel.StreamAsync().ConfigureAwait(false);75            return stream.StreamImpl;76        }77        internal Task CancelAsync() => _channel.CancelAsync();78        internal Task<string> FailureAsync() => _channel.FailureAsync();79        internal Task DeleteAsync() => _channel.DeleteAsync();80    }81}...

Stream.cs

Source:Stream.cs

...38        ChannelBase IChannelOwner.Channel => Channel;39        IChannel<Stream> IChannelOwner<Stream>.Channel => Channel;40        public StreamChannel Channel { get; }41        public StreamImpl StreamImpl => new(this);42        public Task<byte[]> ReadAsync(int size) => Channel.ReadAsync(size);43        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());44        public Task CloseAsync() => Channel.CloseAsync();45    }46    internal class StreamImpl : System.IO.Stream47    {48        private readonly Stream _stream;49        internal StreamImpl(Stream stream)50        {51            _stream = stream;52        }53        public override bool CanRead => true;54        public override bool CanSeek => false;55        public override bool CanWrite => throw new NotImplementedException();56        public override long Length => throw new NotImplementedException();57        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }58        public override void Flush() => throw new NotImplementedException();59        public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();60        public override async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)61        {62            var result = await _stream.ReadAsync(count).ConfigureAwait(false);63            result.CopyTo(buffer, offset);64            return result.Length;65        }66        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);67        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();68        public override void SetLength(long value) => throw new NotImplementedException();69        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();70    }71}...

Download.cs

Source:Download.cs

...46        public Task<string> PathAsync() => _artifact.PathAfterFinishedAsync();47        public Task<string> FailureAsync() => _artifact.FailureAsync();48        public Task DeleteAsync() => _artifact.DeleteAsync();49        public Task SaveAsAsync(string path) => _artifact.SaveAsAsync(path);50        public Task<System.IO.Stream> CreateReadStreamAsync() => _artifact.CreateReadStreamAsync();51        public Task CancelAsync() => _artifact.CancelAsync();52    }53}...

StreamChannel.cs

Source:StreamChannel.cs

...30    {31        public StreamChannel(string guid, Connection connection, Stream owner) : base(guid, connection, owner)32        {33        }34        internal async Task<byte[]> ReadAsync(int size)35        {36            var response = await Connection.SendMessageToServerAsync(37                Guid,38                "read",39                new Dictionary<string, object>40                {41                    ["size"] = size,42                }).ConfigureAwait(false);43            return response.Value.GetProperty("binary").GetBytesFromBase64();44        }45        internal Task CloseAsync() => Connection.SendMessageToServerAsync(Guid, "close", null);46    }47}...

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Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync();9            var page = await browser.NewPageAsync();10            var elementHandle = await page.QuerySelectorAsync("a");11            var stream = await elementHandle.ScreenshotStreamAsync();12            var file = await stream.ReadAsync();13        }14    }15}16using Microsoft.Playwright;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            var elementHandle = await page.QuerySelectorAsync("a");26            var stream = await elementHandle.ScreenshotStreamAsync();27            var file = await stream.ReadAsync();28        }29    }30}31using Microsoft.Playwright;32using System.Threading.Tasks;33{34    {35        static async Task Main(string[] args)36        {37            using var playwright = await Playwright.CreateAsync();38            await using var browser = await playwright.Chromium.LaunchAsync();39            var page = await browser.NewPageAsync();40            var elementHandle = await page.QuerySelectorAsync("a");41            var stream = await elementHandle.ScreenshotStreamAsync();42            var file = await stream.ReadAsync();43        }44    }45}46using Microsoft.Playwright;47using System.Threading.Tasks;48{49    {50        static async Task Main(string[] args)51        {52            using var playwright = await Playwright.CreateAsync();

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Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;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            var stream = await page.ScreenshotStreamAsync();12            var bytes = stream.Read();13        }14    }15}16using Microsoft.Playwright;17using Microsoft.Playwright.Core;18using System.Threading.Tasks;19{20    {21        static async Task Main(string[] args)22        {23            using var playwright = await Playwright.CreateAsync();24            await using var browser = await playwright.Chromium.LaunchAsync();25            var page = await browser.NewPageAsync();26            var stream = await page.ScreenshotStreamAsync();27            var bytes = await stream.ReadAsync();28        }29    }30}31using Microsoft.Playwright;32using Microsoft.Playwright.Core;33using System.Threading.Tasks;34{35    {36        static async Task Main(string[] args)37        {38            using var playwright = await Playwright.CreateAsync();39            await using var browser = await playwright.Chromium.LaunchAsync();40            var page = await browser.NewPageAsync();41            var stream = await page.ScreenshotStreamAsync();42            var bytes = stream.ReadToEnd();43        }44    }45}46using Microsoft.Playwright;47using Microsoft.Playwright.Core;48using System.Threading.Tasks;49{50    {51        static async Task Main(string[] args)52        {53            using var playwright = await Playwright.CreateAsync();54            await using var browser = await playwright.Chromium.LaunchAsync();55            var page = await browser.NewPageAsync();56            await page.GotoAsync("https

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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(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.ScreenshotAsync(new PageScreenshotOptions15            {16            });17            await browser.CloseAsync();18        }19    }20}

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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            await using var browser = await playwright.Webkit.LaunchAsync();10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var stream = await response.BodyAsync();13            var bytes = await stream.ReadAsync();14            Console.WriteLine(bytes);15            await browser.CloseAsync();16        }17    }18}19using Microsoft.Playwright;20using System;21using System.Threading.Tasks;22{23    {24        static async Task Main(string[] args)25        {26            using var playwright = await Playwright.CreateAsync();27            await using var browser = await playwright.Webkit.LaunchAsync();28            var context = await browser.NewContextAsync();29            var page = await context.NewPageAsync();30            var stream = await response.BodyAsync();31            var bytes = await stream.ReadAsync();32            Console.WriteLine(bytes);33            await browser.CloseAsync();34        }35    }36}37using Microsoft.Playwright;38using System;39using System.Threading.Tasks;40{41    {42        static async Task Main(string[] args)43        {44            using var playwright = await Playwright.CreateAsync();45            await using var browser = await playwright.Webkit.LaunchAsync();46            var context = await browser.NewContextAsync();47            var page = await context.NewPageAsync();48            var stream = await response.BodyAsync();49            var bytes = await stream.ReadAsync();50            Console.WriteLine(bytes);51            await browser.CloseAsync();52        }53    }54}55using Microsoft.Playwright;56using System;57using System.Threading.Tasks;58{59    {60        static async Task Main(string[] args)61        {62            using var playwright = await Playwright.CreateAsync();

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Using AI Code Generation

1var browser = await Playwright.CreateAsync().Chromium.LaunchAsync(headless: false);2var page = await browser.NewPageAsync();3var elementHandle = await page.QuerySelectorAsync("input[name='q']");4await elementHandle.TypeAsync("Hello World");5await elementHandle.PressAsync("Enter");6await page.WaitForLoadStateAsync();7var screenshot = await page.ScreenshotAsync();8var stream = screenshot.Read();9var fileStream = new FileStream("screenshot.png", FileMode.Create);10stream.CopyTo(fileStream);11fileStream.Close();12var browser = await Playwright.CreateAsync().Chromium.LaunchAsync(headless: false);13var page = await browser.NewPageAsync();14var elementHandle = await page.QuerySelectorAsync("input[name='q']");15await elementHandle.TypeAsync("Hello World");16await elementHandle.PressAsync("Enter");17await page.WaitForLoadStateAsync();18var screenshot = await page.ScreenshotAsync();19var stream = screenshot.Read();20var fileStream = new FileStream("screenshot.png", FileMode.Create);21using (var writer = new BinaryWriter(fileStream))22{23    var buffer = new byte[1024];24    int bytesRead;25    while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)26    {27        writer.Write(buffer, 0, bytesRead);28    }29}30fileStream.Close();31var browser = await Playwright.CreateAsync().Chromium.LaunchAsync(headless: false);32var page = await browser.NewPageAsync();33var elementHandle = await page.QuerySelectorAsync("input[name='q']");34await elementHandle.TypeAsync("Hello World");35await elementHandle.PressAsync("Enter");36await page.WaitForLoadStateAsync();37var screenshot = await page.ScreenshotAsync();38var stream = screenshot.Read();39var fileStream = new FileStream("screenshot.png", FileMode.Create);40using (var writer = new BinaryWriter(fileStream))41{42    var buffer = new byte[1024];43    int bytesRead;44    while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)45    {46        writer.Write(buffer, 0

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Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3using System.IO;4using System;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });15            var stream = await response.BodyAsync();16            using var fileStream = File.Create("downloadedFile.txt");17            await stream.ReadAsync(fileStream);18        }19    }20}21using Microsoft.Playwright;22using System.Threading.Tasks;23using System.IO;24using System;25{26    {27        static async Task Main(string[] args)28        {29            using var playwright = await Playwright.CreateAsync();30            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions31            {32            });33            var page = await browser.NewPageAsync();34            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });35            var stream = await response.BodyAsync();36            using var fileStream = File.Create("downloadedFile.txt");37            await stream.ReadAsync(fileStream);38        }39    }40}41using Microsoft.Playwright;42using System.Threading.Tasks;43using System.IO;44using System;45{46    {47        static async Task Main(string[] args)48        {49            using var playwright = await Playwright.CreateAsync();50            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions51            {52            });53            var page = await browser.NewPageAsync();

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Using AI Code Generation

1var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();2var page = await browser.NewPageAsync();3await page.ScreenshotAsync(path: "screenshot.png");4await browser.CloseAsync();5var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();6var page = await browser.NewPageAsync();7var screenshot = await page.ScreenshotAsync();8File.WriteAllBytes("screenshot.png", screenshot);9await browser.CloseAsync();10var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();11var page = await browser.NewPageAsync();12var screenshot = await page.ScreenshotAsync();13File.WriteAllBytes("screenshot.png", screenshot);14await browser.CloseAsync();15var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();16var page = await browser.NewPageAsync();17var screenshot = await page.ScreenshotAsync();18File.WriteAllBytes("screenshot.png", screenshot);19await browser.CloseAsync();20var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();21var page = await browser.NewPageAsync();22var screenshot = await page.ScreenshotAsync();23File.WriteAllBytes("screenshot.png", screenshot);24await browser.CloseAsync();25var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();

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Using AI Code Generation

1var streamReader = new StreamReader(stream);2var content = streamReader.ReadToEnd();3Console.WriteLine(content);4var streamReader = new StreamReader(stream);5var content = streamReader.ReadToEnd();6Console.WriteLine(content);7var streamReader = new StreamReader(stream);8var content = streamReader.ReadToEnd();9Console.WriteLine(content);10var streamReader = new StreamReader(stream);11var content = streamReader.ReadToEnd();12Console.WriteLine(content);13var streamReader = new StreamReader(stream);14var content = streamReader.ReadToEnd();15Console.WriteLine(content);16var streamReader = new StreamReader(stream);17var content = streamReader.ReadToEnd();18Console.WriteLine(content);19var streamReader = new StreamReader(stream);20var content = streamReader.ReadToEnd();21Console.WriteLine(content);22var streamReader = new StreamReader(stream);23var content = streamReader.ReadToEnd();24Console.WriteLine(content

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Using AI Code Generation

1var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {2}" );3 var  content = await  stream .ReadAsync ();4 var  text = Encoding .UTF8 .GetString (content);5Console .WriteLine (text);6 var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {7}" );8 var  content = await  stream .ReadAsync ();9 var  text = Encoding .UTF8 .GetString (content);10Console .WriteLine (text);11 var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {12}" );13 var  content = await  stream .ReadAsync ();14 var  text = Encoding .UTF8 .GetString (content);15Console .WriteLine (text);16 var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {17}" );18 var  content = await  stream .ReadAsync ();19 var  text = Encoding .UTF8 .GetString (content);20Console .WriteLine (text);21 var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {22}" );23 var  content = await  stream .ReadAsync ();24 var  text = Encoding .UTF8 .GetString (content);25Console .WriteLine (text);26 var  stream = await  page .EvaluateHandleAsync<Stream> ( @"() => {27}" );

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.