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

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

BrowserTypeConnectTests.cs

Source:BrowserTypeConnectTests.cs

...46        }47        [TearDown]48        public void TearDownRemoteServer()49        {50            _remoteServer.Close();51        }52        [PlaywrightTest("browsertype-connect.spec.ts", "should be able to reconnect to a browser")]53        public async Task ShouldBeAbleToReconnectToABrowser()54        {55            {56                var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);57                var browserContext = await browser.NewContextAsync();58                Assert.AreEqual(browserContext.Pages.Count, 0);59                var page = await browserContext.NewPageAsync();60                Assert.AreEqual(await page.EvaluateAsync<int>("11 * 11"), 121);61                await page.GotoAsync(Server.EmptyPage);62                await browser.CloseAsync();63            }64            {65                var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);66                var browserContext = await browser.NewContextAsync();67                var page = await browserContext.NewPageAsync();68                await page.GotoAsync(Server.EmptyPage);69                await browser.CloseAsync();70            }71        }72        [PlaywrightTest("browsertype-connect.spec.ts", "should send default User-Agent and X-Playwright-Browser headers with connect request")]73        public async Task ShouldSendDefaultUserAgentAndPlaywrightBrowserHeadersWithConnectRequest()74        {75            var connectionRequest = Server.WaitForWebSocketConnectionRequest();76            BrowserType.ConnectAsync($"ws://localhost:{Server.Port}/ws", new()77            {78                Headers = new Dictionary<string, string>()79                {80                    ["hello-foo"] = "i-am-bar",81                }82            }).IgnoreException();83            var request = await connectionRequest;84            StringAssert.Contains("Playwright", request.Headers["User-Agent"]);85            Assert.AreEqual(request.Headers["hello-foo"], "i-am-bar");86            Assert.AreEqual(request.Headers["x-playwright-browser"], BrowserType.Name);87        }88        [PlaywrightTest("browsertype-connect.spec.ts", "should be able to connect two browsers at the same time")]89        public async Task ShouldBeAbleToConnectTwoBrowsersAtTheSameTime()90        {91            var browser1 = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);92            Assert.AreEqual(browser1.Contexts.Count, 0);93            await browser1.NewContextAsync();94            Assert.AreEqual(browser1.Contexts.Count, 1);95            var browser2 = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);96            Assert.AreEqual(browser2.Contexts.Count, 0);97            await browser2.NewContextAsync();98            Assert.AreEqual(browser2.Contexts.Count, 1);99            Assert.AreEqual(browser1.Contexts.Count, 1);100            await browser1.CloseAsync();101            Assert.AreEqual(browser2.Contexts.Count, 1);102            var page2 = await browser2.NewPageAsync();103            Assert.AreEqual(await page2.EvaluateAsync<int>("7 * 6"), 42); // original browser should still work104            await browser2.CloseAsync();105        }106        [PlaywrightTest("browsertype-connect.spec.ts", "should timeout in connect while connecting")]107        [Skip(SkipAttribute.Targets.Windows)]108        public async Task ShouldTimeoutInConnectWhileConnecting()109        {110            var exception = await PlaywrightAssert.ThrowsAsync<TimeoutException>(async () => await BrowserType.ConnectAsync($"ws://localhost:{Server.Port}/ws", new BrowserTypeConnectOptions { Timeout = 100 }));111            StringAssert.Contains("BrowserType.ConnectAsync: Timeout 100ms exceeded", exception.Message);112        }113        [PlaywrightTest("browsertype-connect.spec.ts", "should support slowmo option")]114        public async Task ShouldSupportSlowMo()115        {116            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint, new BrowserTypeConnectOptions { SlowMo = 200 });117            var start = DateTime.Now;118            var context = await browser.NewContextAsync();119            await browser.CloseAsync();120            Assert.Greater((DateTime.Now - start).TotalMilliseconds, 199);121        }122        [PlaywrightTest("browsertype-connect.spec.ts", "disconnected event should be emitted when browser is closed or server is closed")]123        public async Task DisconnectedEventShouldBeEmittedWhenBrowserIsClosedOrServerIsClosed()124        {125            var browser1 = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);126            await browser1.NewPageAsync();127            var browser2 = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);128            await browser2.NewPageAsync();129            int disconnected1 = 0;130            int disconnected2 = 0;131            browser1.Disconnected += (_, e) => disconnected1++;132            browser2.Disconnected += (_, e) => disconnected2++;133            var tsc1 = new TaskCompletionSource<object>();134            browser1.Disconnected += (_, e) => tsc1.SetResult(null);135            await browser1.CloseAsync();136            await tsc1.Task;137            Assert.AreEqual(disconnected1, 1);138            Assert.AreEqual(disconnected2, 0);139            var tsc2 = new TaskCompletionSource<object>();140            browser2.Disconnected += (_, e) => tsc2.SetResult(null);141            await browser2.CloseAsync();142            await tsc2.Task;143            Assert.AreEqual(disconnected1, 1);144            Assert.AreEqual(disconnected2, 1);145        }146        [PlaywrightTest("browsertype-connect.spec.ts", "disconnected event should have browser as argument")]147        public async Task DisconnectedEventShouldHaveBrowserAsArguments()148        {149            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);150            IBrowser disconneced = null;151            var tsc = new TaskCompletionSource<object>();152            browser.Disconnected += (_, browser) =>153            {154                disconneced = browser;155                tsc.SetResult(null);156            };157            await browser.CloseAsync();158            await tsc.Task;159            Assert.AreEqual(browser, disconneced);160        }161        [PlaywrightTest("browsertype-connect.spec.ts", "should set the browser connected state")]162        public async Task ShouldSetTheBrowserConnectedState()163        {164            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);165            Assert.AreEqual(browser.IsConnected, true);166            var tsc = new TaskCompletionSource<bool>();167            browser.Disconnected += (_, e) => tsc.SetResult(false);168            _remoteServer.Close();169            await tsc.Task;170            Assert.AreEqual(browser.IsConnected, false);171        }172        [PlaywrightTest("browsertype-connect.spec.ts", "should throw when used after isConnected returns false")]173        public async Task ShouldThrowWhenUsedAfterIsConnectedReturnsFalse()174        {175            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);176            var page = await browser.NewPageAsync();177            var tsc = new TaskCompletionSource<bool>();178            browser.Disconnected += (_, e) => tsc.SetResult(false);179            _remoteServer.Close();180            await tsc.Task;181            Assert.AreEqual(browser.IsConnected, false);182            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await page.EvaluateAsync("1 + 1"));183            StringAssert.Contains("has been closed", exception.Message);184        }185        [PlaywrightTest("browsertype-connect.spec.ts", "should throw when calling waitForNavigation after disconnect")]186        public async Task ShouldThrowWhenWhenCallingWaitForNavigationAfterDisconnect()187        {188            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);189            var page = await browser.NewPageAsync();190            var tsc = new TaskCompletionSource<bool>();191            browser.Disconnected += (_, e) => tsc.SetResult(false);192            _remoteServer.Close();193            await tsc.Task;194            Assert.AreEqual(browser.IsConnected, false);195            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await page.WaitForNavigationAsync());196            StringAssert.Contains("Navigation failed because page was closed", exception.Message);197        }198        [PlaywrightTest("browsertype-connect.spec.ts", "should reject navigation when browser closes")]199        public async Task ShouldRejectNavigationWhenBrowserCloses()200        {201            Server.SetRoute("/one-style.css", context =>202            {203                context.Response.Redirect("/one-style.css");204                return Task.CompletedTask;205            });206            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);207            var page = await browser.NewPageAsync();208            var PageGoto = page.GotoAsync(Server.Prefix + "/one-style.html", new PageGotoOptions { Timeout = 60000 });209            await Server.WaitForRequest("/one-style.css");210            await browser.CloseAsync();211            Assert.AreEqual(browser.IsConnected, false);212            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await PageGoto);213            StringAssert.Contains("has been closed", exception.Message);214        }215        [PlaywrightTest("browsertype-connect.spec.ts", "should reject waitForSelector when browser closes")]216        public async Task ShouldRejectWaitForSelectorWhenBrowserCloses()217        {218            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);219            var page = await browser.NewPageAsync();220            var watchdog = page.WaitForSelectorAsync("div");221            await browser.CloseAsync();222            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await watchdog);223            Assert.That(exception.Message, Contains.Substring("has been closed"));224        }225        [PlaywrightTest("browsertype-connect.spec.ts", "should emit close events on pages and contexts")]226        public async Task ShouldEmitCloseEventsOnPagesAndContexts()227        {228            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);229            var context = await browser.NewContextAsync();230            var tsc = new TaskCompletionSource<object>();231            context.Close += (_, e) => tsc.SetResult(null);232            var page = await context.NewPageAsync();233            bool pageClosed = false;234            page.Close += (_, e) => pageClosed = true;235            _remoteServer.Close();236            await tsc.Task;237            Assert.AreEqual(pageClosed, true);238        }239        [PlaywrightTest("browsertype-connect.spec.ts", "should terminate network waiters")]240        public async Task ShouldTerminateNetworkWaiters()241        {242            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);243            var page = await browser.NewPageAsync();244            var requestWatchdog = page.WaitForRequestAsync(Server.EmptyPage);245            var responseWatchog = page.WaitForResponseAsync(Server.EmptyPage);246            _remoteServer.Close();247            async Task CheckTaskHasException(Task task)248            {249                var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await task);250                StringAssert.Contains("Page closed", exception.Message);251                StringAssert.DoesNotContain("Timeout", exception.Message);252            }253            await CheckTaskHasException(requestWatchdog);254            await CheckTaskHasException(responseWatchog);255        }256        [PlaywrightTest("browsertype-connect.spec.ts", "should not throw on close after disconnect")]257        public async Task ShouldNotThrowOnCloseAfterDisconnect()258        {259            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);260            var page = await browser.NewPageAsync();261            var tcs = new TaskCompletionSource<bool>();262            browser.Disconnected += (_, e) => tcs.SetResult(true);263            _remoteServer.Close();264            await tcs.Task;265            await browser.CloseAsync();266        }267        [PlaywrightTest("browsertype-connect.spec.ts", "should not throw on context.close after disconnect")]268        public async Task ShouldNotThrowOnContextCloseAfterDisconnect()269        {270            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);271            var context = await browser.NewContextAsync();272            await context.NewPageAsync();273            var tcs = new TaskCompletionSource<bool>();274            browser.Disconnected += (_, e) => tcs.SetResult(true);275            _remoteServer.Close();276            await tcs.Task;277            await context.CloseAsync();278        }279        [PlaywrightTest("browsertype-connect.spec.ts", "should not throw on page.close after disconnect")]280        public async Task ShouldNotThrowOnPageCloseAfterDisconnect()281        {282            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);283            var context = await browser.NewContextAsync();284            var page = await context.NewPageAsync();285            var tcs = new TaskCompletionSource<bool>();286            browser.Disconnected += (_, e) => tcs.SetResult(true);287            _remoteServer.Close();288            await tcs.Task;289            await page.CloseAsync();290        }291        [PlaywrightTest("browsertype-connect.spec.ts", "should saveAs videos from remote browser")]292        public async Task ShouldSaveAsVideosFromRemoteBrowser()293        {294            using var tempDirectory = new TempDirectory();295            var videoPath = tempDirectory.Path;296            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);297            var context = await browser.NewContextAsync(new()298            {299                RecordVideoDir = videoPath,300                RecordVideoSize = new() { Height = 320, Width = 240 }301            });302            var page = await context.NewPageAsync();303            await page.EvaluateAsync("() => document.body.style.backgroundColor = 'red'");304            await Task.Delay(1000);305            await context.CloseAsync();306            var videoSavePath = tempDirectory.Path + "my-video.webm";307            await page.Video.SaveAsAsync(videoSavePath);308            Assert.That(videoSavePath, Does.Exist);309            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(async () => await page.Video.PathAsync());310            StringAssert.Contains("Path is not available when connecting remotely. Use SaveAsAsync() to save a local copy", exception.Message);311        }312        [PlaywrightTest("browsertype-connect.spec.ts", "should save download")]313        public async Task ShouldSaveDownload()314        {315            Server.SetRoute("/download", context =>316            {317                context.Response.Headers["Content-Type"] = "application/octet-stream";318                context.Response.Headers["Content-Disposition"] = "attachment";319                return context.Response.WriteAsync("Hello world");320            });321            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);322            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });323            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");324            var downloadTask = page.WaitForDownloadAsync();325            await TaskUtils.WhenAll(326                downloadTask,327                page.ClickAsync("a"));328            using var tmpDir = new TempDirectory();329            string userPath = Path.Combine(tmpDir.Path, "these", "are", "directories", "download.txt");330            var download = downloadTask.Result;331            await download.SaveAsAsync(userPath);332            Assert.True(new FileInfo(userPath).Exists);333            Assert.AreEqual("Hello world", File.ReadAllText(userPath));334            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.PathAsync());335            Assert.AreEqual("Path is not available when connecting remotely. Use SaveAsAsync() to save a local copy.", exception.Message);336            await browser.CloseAsync();337        }338        [PlaywrightTest("browsertype-connect.spec.ts", "should error when saving download after deletion")]339        public async Task ShouldErrorWhenSavingDownloadAfterDeletion()340        {341            Server.SetRoute("/download", context =>342            {343                context.Response.Headers["Content-Type"] = "application/octet-stream";344                context.Response.Headers["Content-Disposition"] = "attachment";345                return context.Response.WriteAsync("Hello world");346            });347            var browser = await BrowserType.ConnectAsync(_remoteServer.WSEndpoint);348            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });349            await page.SetContentAsync($"<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();472                WSEndpoint = null;473            }474        }475    }476}...

DownloadTests.cs

Source:DownloadTests.cs

...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(353                download2Task,354                page.ClickAsync("a"));355            string path1 = await download1Task.Result.PathAsync();356            string path2 = await download2Task.Result.PathAsync();357            Assert.True(new FileInfo(path1).Exists);358            Assert.True(new FileInfo(path2).Exists);359            await page.Context.CloseAsync();360            Assert.False(new FileInfo(path1).Exists);361            Assert.False(new FileInfo(path2).Exists);362        }363        [PlaywrightTest("download.spec.ts", "should delete downloads on browser gone")]364        public async Task ShouldDeleteDownloadsOnBrowserGone()365        {366            var browser = await BrowserType.LaunchAsync();367            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });368            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");369            var download1Task = page.WaitForDownloadAsync();370            await TaskUtils.WhenAll(371                download1Task,372                page.ClickAsync("a"));373            var download2Task = page.WaitForDownloadAsync();374            await TaskUtils.WhenAll(375                download2Task,376                page.ClickAsync("a"));377            string path1 = await download1Task.Result.PathAsync();378            string path2 = await download2Task.Result.PathAsync();379            Assert.True(new FileInfo(path1).Exists);380            Assert.True(new FileInfo(path2).Exists);381            await browser.CloseAsync();382            Assert.False(new FileInfo(path1).Exists);383            Assert.False(new FileInfo(path2).Exists);384            Assert.False(new FileInfo(Path.Combine(path1, "..")).Exists);385        }386        [PlaywrightTest("download.spec.ts", "should be able to cancel pending downloads")]387        public async Task ShouldBeAbleToCancelPendingDownload()388        {389            var browser = await BrowserType.LaunchAsync();390            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });391            await page.SetContentAsync($"<a href=\"{Server.Prefix}/downloadWithDelay\">download</a>");392            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));393            await download.CancelAsync();394            var failure = await download.FailureAsync();395            Assert.AreEqual("canceled", failure);396            await page.CloseAsync();397        }398        [PlaywrightTest("download.spec.ts", "should not fail explicitly to cancel a download even if that is already finished")]399        public async Task ShouldNotFailWhenCancellingACompletedDownload()400        {401            var browser = await BrowserType.LaunchAsync();402            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });403            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");404            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));405            using var tmpDir = new TempDirectory();406            string userPath = Path.Combine(tmpDir.Path, "download.txt");407            await download.SaveAsAsync(userPath);408            Assert.IsTrue(File.Exists(userPath));409            await download.CancelAsync();410            var failure = await download.FailureAsync();411            Assert.IsNull(failure);412            await page.CloseAsync();413        }414        [PlaywrightTest("download.spec.ts", "should report downloads with interception")]415        public async Task ShouldReportDownloadsWithInterception()416        {417            var browser = await BrowserType.LaunchAsync();418            var page = await browser.NewPageAsync(new() { AcceptDownloads = true });419            await page.RouteAsync("*", r => r.ContinueAsync());420            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");421            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));422            var path = await download.PathAsync();423            Assert.IsTrue(File.Exists(path));424            await page.CloseAsync();425        }426    }427}...

Connection.cs

Source:Connection.cs

...58            DefaultJsonSerializerOptions.Converters.Add(new ChannelOwnerListToGuidListConverter<WritableStream>(this));59        }60        /// <inheritdoc cref="IDisposable.Dispose"/>61        ~Connection() => Dispose(false);62        internal event EventHandler<string> Close;63        public ConcurrentDictionary<string, IChannelOwner> Objects { get; } = new();64        internal AsyncLocal<List<ApiZone>> ApiZone { get; } = new();65        public bool IsClosed { get; private set; }66        internal bool IsRemote { get; set; }67        internal Func<object, Task> OnMessage { get; set; }68        internal JsonSerializerOptions DefaultJsonSerializerOptions { get; }69        public void Dispose()70        {71            Dispose(true);72            GC.SuppressFinalize(this);73        }74        internal Task<JsonElement?> SendMessageToServerAsync(75            string guid,76            string method,77            object args = null)78            => SendMessageToServerAsync<JsonElement?>(guid, method, args);79        internal Task<T> SendMessageToServerAsync<T>(80            string guid,81            string method,82            object args = null) => WrapApiCallAsync(() => InnerSendMessageToServerAsync<T>(guid, method, args));83        private async Task<T> InnerSendMessageToServerAsync<T>(84            string guid,85            string method,86            object args = null)87        {88            if (IsClosed)89            {90                throw new PlaywrightException($"Connection closed ({_reason})");91            }92            int id = Interlocked.Increment(ref _lastId);93            var tcs = new TaskCompletionSource<JsonElement?>(TaskCreationOptions.RunContinuationsAsynchronously);94            var callback = new ConnectionCallback95            {96                TaskCompletionSource = tcs,97            };98            _callbacks.TryAdd(id, callback);99            var sanitizedArgs = new Dictionary<string, object>();100            if (args != null)101            {102                if (args is IDictionary<string, object> dictionary && dictionary.Keys.Any(f => f != null))103                {104                    foreach (var kv in dictionary)105                    {106                        if (kv.Value != null)107                        {108                            sanitizedArgs.Add(kv.Key, kv.Value);109                        }110                    }111                }112                else113                {114                    foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(args))115                    {116                        object obj = propertyDescriptor.GetValue(args);117                        if (obj != null)118                        {119#pragma warning disable CA1845 // Use span-based 'string.Concat' and 'AsSpan' instead of 'Substring120                            string name = propertyDescriptor.Name.Substring(0, 1).ToLower() + propertyDescriptor.Name.Substring(1);121#pragma warning restore CA2000 // Use span-based 'string.Concat' and 'AsSpan' instead of 'Substring122                            sanitizedArgs.Add(name, obj);123                        }124                    }125                }126            }127            await _queue.EnqueueAsync(() =>128            {129                var message = new MessageRequest130                {131                    Id = id,132                    Guid = guid,133                    Method = method,134                    Params = sanitizedArgs,135                    Metadata = ApiZone.Value[0],136                };137                TraceMessage("pw:channel:command", message);138                return OnMessage(message);139            }).ConfigureAwait(false);140            var result = await tcs.Task.ConfigureAwait(false);141            if (typeof(T) == typeof(JsonElement?))142            {143                return (T)(object)result?.Clone();144            }145            else if (result == null)146            {147                return default;148            }149            else if (typeof(ChannelBase).IsAssignableFrom(typeof(T)) || typeof(ChannelBase[]).IsAssignableFrom(typeof(T)))150            {151                var enumerate = result.Value.EnumerateObject();152                return enumerate.Any()153                    ? enumerate.FirstOrDefault().Value.ToObject<T>(DefaultJsonSerializerOptions)154                    : default;155            }156            else157            {158                return result.Value.ToObject<T>(DefaultJsonSerializerOptions);159            }160        }161        internal IChannelOwner GetObject(string guid)162        {163            Objects.TryGetValue(guid, out var result);164            return result;165        }166        internal void MarkAsRemote() => IsRemote = true;167        internal Task<PlaywrightImpl> InitializePlaywrightAsync()168        {169            return _rootObject.InitializeAsync();170        }171        internal void OnObjectCreated(string guid, IChannelOwner result)172        {173            Objects.TryAdd(guid, result);174        }175        internal void Dispatch(PlaywrightServerMessage message)176        {177            if (message.Id.HasValue)178            {179                TraceMessage("pw:channel:response", message);180                if (_callbacks.TryRemove(message.Id.Value, out var callback))181                {182                    if (message.Error != null)183                    {184                        callback.TaskCompletionSource.TrySetException(CreateException(message.Error.Error));185                    }186                    else187                    {188                        callback.TaskCompletionSource.TrySetResult(message.Result);189                    }190                }191                return;192            }193            TraceMessage("pw:channel:event", message);194            try195            {196                if (message.Method == "__create__")197                {198                    var createObjectInfo = message.Params.Value.ToObject<CreateObjectInfo>(DefaultJsonSerializerOptions);199                    CreateRemoteObject(message.Guid, createObjectInfo.Type, createObjectInfo.Guid, createObjectInfo.Initializer);200                    return;201                }202                if (message.Method == "__dispose__")203                {204                    Objects.TryGetValue(message.Guid, out var disableObject);205                    disableObject?.DisposeOwner();206                    return;207                }208                Objects.TryGetValue(message.Guid, out var obj);209                obj?.Channel?.OnMessage(message.Method, message.Params);210            }211            catch (Exception ex)212            {213                DoClose(ex);214            }215        }216        private void CreateRemoteObject(string parentGuid, ChannelOwnerType type, string guid, JsonElement? initializer)217        {218            IChannelOwner result = null;219            var parent = string.IsNullOrEmpty(parentGuid) ? _rootObject : Objects[parentGuid];220#pragma warning disable CA2000 // Dispose objects before losing scope221            switch (type)222            {223                case ChannelOwnerType.Artifact:224                    result = new Artifact(parent, guid, initializer?.ToObject<ArtifactInitializer>(DefaultJsonSerializerOptions));225                    break;226                case ChannelOwnerType.BindingCall:227                    result = new BindingCall(parent, guid, initializer?.ToObject<BindingCallInitializer>(DefaultJsonSerializerOptions));228                    break;229                case ChannelOwnerType.Playwright:230                    result = new PlaywrightImpl(parent, guid, initializer?.ToObject<PlaywrightInitializer>(DefaultJsonSerializerOptions));231                    break;232                case ChannelOwnerType.Browser:233                    var browserInitializer = initializer?.ToObject<BrowserInitializer>(DefaultJsonSerializerOptions);234                    result = new Browser(parent, guid, browserInitializer);235                    break;236                case ChannelOwnerType.BrowserType:237                    var browserTypeInitializer = initializer?.ToObject<BrowserTypeInitializer>(DefaultJsonSerializerOptions);238                    result = new Core.BrowserType(parent, guid, browserTypeInitializer);239                    break;240                case ChannelOwnerType.BrowserContext:241                    var browserContextInitializer = initializer?.ToObject<BrowserContextInitializer>(DefaultJsonSerializerOptions);242                    result = new BrowserContext(parent, guid, browserContextInitializer);243                    break;244                case ChannelOwnerType.ConsoleMessage:245                    result = new ConsoleMessage(parent, guid, initializer?.ToObject<ConsoleMessageInitializer>(DefaultJsonSerializerOptions));246                    break;247                case ChannelOwnerType.Dialog:248                    result = new Dialog(parent, guid, initializer?.ToObject<DialogInitializer>(DefaultJsonSerializerOptions));249                    break;250                case ChannelOwnerType.ElementHandle:251                    result = new ElementHandle(parent, guid, initializer?.ToObject<ElementHandleInitializer>(DefaultJsonSerializerOptions));252                    break;253                case ChannelOwnerType.Frame:254                    result = new Frame(parent, guid, initializer?.ToObject<FrameInitializer>(DefaultJsonSerializerOptions));255                    break;256                case ChannelOwnerType.JSHandle:257                    result = new JSHandle(parent, guid, initializer?.ToObject<JSHandleInitializer>(DefaultJsonSerializerOptions));258                    break;259                case ChannelOwnerType.JsonPipe:260                    result = new JsonPipe(parent, guid, initializer?.ToObject<JsonPipeInitializer>(DefaultJsonSerializerOptions));261                    break;262                case ChannelOwnerType.LocalUtils:263                    result = new LocalUtils(parent, guid, initializer);264                    break;265                case ChannelOwnerType.Page:266                    result = new Page(parent, guid, initializer?.ToObject<PageInitializer>(DefaultJsonSerializerOptions));267                    break;268                case ChannelOwnerType.Request:269                    result = new Request(parent, guid, initializer?.ToObject<RequestInitializer>(DefaultJsonSerializerOptions));270                    break;271                case ChannelOwnerType.Response:272                    result = new Response(parent, guid, initializer?.ToObject<ResponseInitializer>(DefaultJsonSerializerOptions));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: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        }311        internal void DoClose(string reason)312        {313            _reason = string.IsNullOrEmpty(_reason) ? reason : _reason;314            if (!IsClosed)315            {316                foreach (var callback in _callbacks)317                {318                    callback.Value.TaskCompletionSource.TrySetException(new PlaywrightException(reason));319                }320                Dispose();321                IsClosed = true;322            }323        }324        private Exception CreateException(PlaywrightServerError error)325        {326            if (string.IsNullOrEmpty(error.Message))327            {328                return new PlaywrightException(error.Value);329            }330            if (error.Name == "TimeoutError")331            {332                return new TimeoutException(error.Message);333            }334            return new PlaywrightException(error.Message);335        }336        private void Dispose(bool disposing)337        {338            if (!disposing)339            {340                return;341            }342            _queue.Dispose();343            Close.Invoke(this, "Connection disposed");344        }345        [Conditional("DEBUG")]346        internal void TraceMessage(string logLevel, object message)347        {348            string actualLogLevel = Environment.GetEnvironmentVariable("DEBUG");349            if (!string.IsNullOrEmpty(actualLogLevel))350            {351                if (!actualLogLevel.Contains(logLevel))352                {353                    return;354                }355                if (!(message is string))356                {357                    message = JsonSerializer.Serialize(message, DefaultJsonSerializerOptions);...

DownloadsPathTests.cs

Source:DownloadsPathTests.cs

...44            var download = downloadTask.Result;45            Assert.AreEqual($"{Server.Prefix}/download", download.Url);46            Assert.AreEqual("file.txt", download.SuggestedFilename);47            await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => download.PathAsync());48            await page.CloseAsync();49            await _browser.CloseAsync();50            Assert.True(new DirectoryInfo(_tmp.Path).Exists);51        }52        [PlaywrightTest("downloads-path.spec.ts", "should delete downloads when context closes")]53        public async Task ShouldDeleteDownloadsWhenContextCloses()54        {55            var page = await _browser.NewPageAsync(new() { AcceptDownloads = true });56            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");57            var downloadTask = page.WaitForDownloadAsync();58            await TaskUtils.WhenAll(59                downloadTask,60                page.ClickAsync("a"));61            var download = downloadTask.Result;62            string path = await download.PathAsync();63            Assert.True(new FileInfo(path).Exists);64            await page.CloseAsync();65            Assert.False(new FileInfo(path).Exists);66        }67        [PlaywrightTest("downloads-path.spec.ts", "should report downloads in downloadsPath folder")]68        public async Task ShouldReportDownloadsInDownloadsPathFolder()69        {70            var page = await _browser.NewPageAsync(new() { AcceptDownloads = true });71            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");72            var downloadTask = page.WaitForDownloadAsync();73            await TaskUtils.WhenAll(74                downloadTask,75                page.ClickAsync("a"));76            var download = downloadTask.Result;77            string path = await download.PathAsync();78            Assert.That(path, Does.StartWith(_tmp.Path));79            await page.CloseAsync();80        }81        [PlaywrightTest("downloads-path.spec.ts", "should report downloads in downloadsPath folder with a relative path")]82        public async Task ShouldReportDownloadsInDownloadsPathFolderWithARelativePath()83        {84            var browser = await Playwright[TestConstants.BrowserName]85                .LaunchAsync(new()86                {87                    DownloadsPath = "."88                });89            var page = await browser.NewPageAsync(new()90            {91                AcceptDownloads = true92            });93            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");94            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));95            string path = await download.PathAsync();96            Assert.That(path, Does.StartWith(Directory.GetCurrentDirectory()));97            await page.CloseAsync();98        }99        [PlaywrightTest("downloads-path.spec.ts", "should accept downloads in persistent context")]100        public async Task ShouldAcceptDownloadsInPersistentContext()101        {102            var userProfile = new TempDirectory();103            var browser = await Playwright[TestConstants.BrowserName]104                .LaunchPersistentContextAsync(userProfile.Path, new()105                {106                    AcceptDownloads = true,107                    DownloadsPath = _tmp.Path108                });109            var page = await browser.NewPageAsync();110            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");111            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));112            Assert.AreEqual($"{Server.Prefix}/download", download.Url);113            Assert.AreEqual("file.txt", download.SuggestedFilename);114            Assert.That(await download.PathAsync(), Does.StartWith(_tmp.Path));115            await page.CloseAsync();116        }117        [PlaywrightTest("downloads-path.spec.ts", "should delete downloads when persistent context closes")]118        public async Task ShouldDeleteDownloadsWhenPersistentContextCloses()119        {120            var userProfile = new TempDirectory();121            var browser = await Playwright[TestConstants.BrowserName]122                .LaunchPersistentContextAsync(userProfile.Path, new()123                {124                    AcceptDownloads = true,125                    DownloadsPath = _tmp.Path126                });127            var page = await browser.NewPageAsync();128            await page.SetContentAsync($"<a href=\"{Server.Prefix}/download\">download</a>");129            var download = await page.RunAndWaitForDownloadAsync(() => page.ClickAsync("a"));130            var path = await download.PathAsync();131            Assert.IsTrue(File.Exists(path));132            await browser.CloseAsync();133            Assert.IsFalse(File.Exists(path));134        }135        [SetUp]136        public async Task InitializeAsync()137        {138            Server.SetRoute("/download", context =>139            {140                context.Response.Headers["Content-Type"] = "application/octet-stream";141                context.Response.Headers["Content-Disposition"] = "attachment; filename=file.txt";142                return context.Response.WriteAsync("Hello world");143            });144            _tmp = new();145            _browser = await Playwright[TestConstants.BrowserName].LaunchAsync(new() { DownloadsPath = _tmp.Path });146        }147        [TearDown]148        public async Task DisposeAsync()149        {150            await _browser.CloseAsync();151            _tmp.Dispose();152        }153    }154}...

WritableStream.cs

Source:WritableStream.cs

...39        IChannel<WritableStream> IChannelOwner<WritableStream>.Channel => Channel;40        public WritableStreamChannel Channel { get; }41        public WritableStreamImpl WritableStreamImpl => new(this);42        public Task WriteAsync(string binary) => Channel.WriteAsync(binary);43        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());44        public Task CloseAsync() => Channel.CloseAsync();45    }46    internal class WritableStreamImpl : System.IO.Stream47    {48        private readonly WritableStream _stream;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}...

Stream.cs

Source:Stream.cs

...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}...

StreamChannel.cs

Source:StreamChannel.cs

...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}...

WritableStreamChannel.cs

Source:WritableStreamChannel.cs

...40                {41                    ["binary"] = binary,42                }).ConfigureAwait(false);43        }44        internal Task CloseAsync() => Connection.SendMessageToServerAsync(Guid, "close", null);45    }46}...

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            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var stream = await page.ScreenshotStreamAsync();13            await stream.CloseAsync();14            await browser.CloseAsync();15        }16    }17}

Using AI Code Generation

1using Microsoft.Playwright;2var playwright = await Playwright.CreateAsync();3var browser = await playwright.Chromium.LaunchAsync();4var page = await browser.NewPageAsync();5var stream = response.Body;6await stream.CloseAsync();7await browser.CloseAsync();8using Microsoft.Playwright;9var playwright = await Playwright.CreateAsync();10var browser = await playwright.Chromium.LaunchAsync();11var page = await browser.NewPageAsync();12var stream = response.Body;13await stream.CloseAsync();14await browser.CloseAsync();15using Microsoft.Playwright;16var playwright = await Playwright.CreateAsync();17var browser = await playwright.Chromium.LaunchAsync();18var page = await browser.NewPageAsync();19var stream = response.Body;20await stream.CloseAsync();21await browser.CloseAsync();22using Microsoft.Playwright;23var playwright = await Playwright.CreateAsync();24var browser = await playwright.Chromium.LaunchAsync();25var page = await browser.NewPageAsync();26var stream = response.Body;27await stream.CloseAsync();28await browser.CloseAsync();29using Microsoft.Playwright;30var playwright = await Playwright.CreateAsync();31var browser = await playwright.Chromium.LaunchAsync();32var page = await browser.NewPageAsync();33var stream = response.Body;34await stream.CloseAsync();35await browser.CloseAsync();36using Microsoft.Playwright;37var playwright = await Playwright.CreateAsync();38var browser = await playwright.Chromium.LaunchAsync();39var page = await browser.NewPageAsync();40var stream = response.Body;41await stream.CloseAsync();42await browser.CloseAsync();

Using AI Code Generation

1using System;2using System.IO;3using Microsoft.Playwright;4{5    {6        static async System.Threading.Tasks.Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await page.ScreenshotAsync(path: "screenshot.png");12            await page.PdfAsync(path: "screenshot.pdf");13            await page.ScreenshotAsync(path: "screenshot.jpg", type: ScreenshotType.Jpeg);14            await page.ScreenshotAsync(path: "screenshot.png", type: ScreenshotType.Png);15            await page.ScreenshotAsync(path: "screenshot.webp", type: ScreenshotType.Webp);16            await page.ScreenshotAsync(path: "screenshot.avif", type: ScreenshotType.Avif);17            await page.ScreenshotAsync(path: "screenshot.heif", type: ScreenshotType.Heif);18            await page.ScreenshotAsync(path: "screenshot.heic", type: ScreenshotType.Heic);19            await page.ScreenshotAsync(path: "screenshot.tiff", type: ScreenshotType.Tiff);20            await page.ScreenshotAsync(path: "screenshot.bmp", type: ScreenshotType.Bmp);21            await page.ScreenshotAsync(path: "screenshot.svg", type: ScreenshotType.Svg);22            await page.ScreenshotAsync(path: "screenshot

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            var stream = await response.BodyAsync();13            var buffer = new byte[1000];14            var bytesRead = await stream.ReadAsync(buffer, 0, 1000);15            Console.WriteLine($"Bytes read: {bytesRead}");16            stream.Close();17            await browser.CloseAsync();18        }19    }20}

Using AI Code Generation

1var playwright = await Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var page = await browser.NewPageAsync();4await page.PressAsync("input[name=q]", "Enter");5var response = await page.WaitForResponseAsync("**/*");6var stream = await response.BodyAsync();7await stream.CloseAsync();8var playwright = await Playwright.CreateAsync();9var browser = await playwright.Chromium.LaunchAsync();10var page = await browser.NewPageAsync();11await page.PressAsync("input[name=q]", "Enter");12var response = await page.WaitForResponseAsync("**/*");13var stream = await response.BodyAsync();14stream.Dispose();15var playwright = await Playwright.CreateAsync();16var browser = await playwright.Chromium.LaunchAsync();17var page = await browser.NewPageAsync();18await page.PressAsync("input[name=q]", "Enter");19var response = await page.WaitForResponseAsync("**/*");20var stream = await response.BodyAsync();21await stream.CloseAsync();22var playwright = await Playwright.CreateAsync();23var browser = await playwright.Chromium.LaunchAsync();24var page = await browser.NewPageAsync();25await page.PressAsync("input[name=q]", "Enter");26var response = await page.WaitForResponseAsync("**/*");27var stream = await response.BodyAsync();28stream.Dispose();29var playwright = await Playwright.CreateAsync();30var browser = await playwright.Chromium.LaunchAsync();31var page = await browser.NewPageAsync();32await page.PressAsync("input[name=q]", "Enter");33var response = await page.WaitForResponseAsync("**/*");34var stream = await response.BodyAsync();35await stream.CloseAsync();

Using AI Code Generation

1var browser = await Playwright.CreateAsync().Chromium.LaunchAsync(new LaunchOptions2{3    Args = new[] { "--start-maximized" }4});5var context = await browser.NewContextAsync();6var page = await context.NewPageAsync();7await page.ClickAsync("text=Images");8var element = await page.QuerySelectorAsync("text=Images");9await element.ClickAsync();10await page.ClickAsync("text=Imag

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            var browser = await playwright.Chromium.LaunchAsync(headless: false);10            var page = await browser.NewPageAsync();11            await page.PressAsync("input[title='Search']", "ArrowDown");12            await page.PressAsync("input[title='Search']", "Enter");13            var screenshot = await page.ScreenshotAsync();14            await screenshot.CloseAsync();15            await browser.CloseAsync();16        }17    }18}

Using AI Code Generation

1await using var stream = await page.Video.SaveAsAsync();2await stream.CloseAsync();3await stream.DisposeAsync();4await using var stream = await page.Video.SaveAsAsync();5await stream.CloseAsync();6await stream.DisposeAsync();7await using var stream = await page.Video.SaveAsAsync();8await stream.CloseAsync();9await stream.DisposeAsync();10await using var stream = await page.Video.SaveAsAsync();11await stream.CloseAsync();12await stream.DisposeAsync();13await using var stream = await page.Video.SaveAsAsync();14await stream.CloseAsync();15await stream.DisposeAsync();16await using var stream = await page.Video.SaveAsAsync();17await stream.CloseAsync();18await stream.DisposeAsync();19await using var stream = await page.Video.SaveAsAsync();20await stream.CloseAsync();21await stream.DisposeAsync();22await using var stream = await page.Video.SaveAsAsync();23await stream.CloseAsync();24await stream.DisposeAsync();25await using var stream = await page.Video.SaveAsAsync();26await stream.CloseAsync();27await stream.DisposeAsync();28await using var stream = await page.Video.SaveAsAsync();29await stream.CloseAsync();30await stream.DisposeAsync();31await using var stream = await page.Video.SaveAsAsync();32await stream.CloseAsync();33await stream.DisposeAsync();34await using var stream = await page.Video.SaveAsAsync();35await stream.CloseAsync();36await stream.DisposeAsync();

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.