KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use CloseAsync method of Microsoft.Playwright.Core.Browser class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Browser.CloseAsync

BrowserTypeConnectTests.cs

Source:BrowserTypeConnectTests.cs

...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");...

BrowserContextBasicTests.cs

Source:BrowserContextBasicTests.cs

...40            await using var context = await browser.NewContextAsync();41            Assert.That(browser.Contexts, Has.Length.EqualTo(1));42            CollectionAssert.Contains(browser.Contexts, context);43            Assert.AreEqual(browser, context.Browser);44            await context.CloseAsync();45            Assert.IsEmpty(browser.Contexts);46            Assert.AreEqual(browser, context.Browser);47        }48        [PlaywrightTest("browsercontext-basic.spec.ts", "window.open should use parent tab context")]49        public async Task WindowOpenShouldUseParentTabContext()50        {51            await using var context = await Browser.NewContextAsync();52            var page = await context.NewPageAsync();53            await page.GotoAsync(Server.EmptyPage);54            var popupTargetCompletion = new TaskCompletionSource<IPage>();55            page.Popup += (_, e) => popupTargetCompletion.SetResult(e);56            var (popupTarget, _) = await TaskUtils.WhenAll(57                popupTargetCompletion.Task,58                page.EvaluateAsync("url => window.open(url)", Server.EmptyPage)59            );60            Assert.AreEqual(context, popupTarget.Context);61            await context.CloseAsync();62        }63        [PlaywrightTest("browsercontext-basic.spec.ts", "should isolate localStorage and cookies")]64        public async Task ShouldIsolateLocalStorageAndCookies()65        {66            // Create two incognito contexts.67            await using var browser = await BrowserType.LaunchAsync();68            var context1 = await browser.NewContextAsync();69            var context2 = await browser.NewContextAsync();70            Assert.IsEmpty(context1.Pages);71            Assert.IsEmpty(context2.Pages);72            // Create a page in first incognito context.73            var page1 = await context1.NewPageAsync();74            await page1.GotoAsync(Server.EmptyPage);75            await page1.EvaluateAsync(@"() => {76                localStorage.setItem('name', 'page1');77                document.cookie = 'name=page1';78            }");79            Assert.That(context1.Pages, Has.Count.EqualTo(1));80            Assert.IsEmpty(context2.Pages);81            // Create a page in second incognito context.82            var page2 = await context2.NewPageAsync();83            await page2.GotoAsync(Server.EmptyPage);84            await page2.EvaluateAsync(@"() => {85                localStorage.setItem('name', 'page2');86                document.cookie = 'name=page2';87            }");88            Assert.That(context1.Pages, Has.Count.EqualTo(1));89            Assert.AreEqual(page1, context1.Pages.FirstOrDefault());90            Assert.That(context2.Pages, Has.Count.EqualTo(1));91            Assert.AreEqual(page2, context2.Pages.FirstOrDefault());92            // Make sure pages don't share localstorage or cookies.93            Assert.AreEqual("page1", await page1.EvaluateAsync<string>("() => localStorage.getItem('name')"));94            Assert.AreEqual("name=page1", await page1.EvaluateAsync<string>("() => document.cookie"));95            Assert.AreEqual("page2", await page2.EvaluateAsync<string>("() => localStorage.getItem('name')"));96            Assert.AreEqual("name=page2", await page2.EvaluateAsync<string>("() => document.cookie"));97            // Cleanup contexts.98            await TaskUtils.WhenAll(context1.CloseAsync(), context2.CloseAsync());99            Assert.IsEmpty(browser.Contexts);100        }101        [PlaywrightTest("browsercontext-basic.spec.ts", "should propagate default viewport to the page")]102        public async Task ShouldPropagateDefaultViewportToThePage()103        {104            await using var context = await Browser.NewContextAsync(new()105            {106                ViewportSize = new()107                {108                    Width = 456,109                    Height = 789110                }111            });112            var page = await context.NewPageAsync();113            await TestUtils.VerifyViewportAsync(page, 456, 789);114        }115        [PlaywrightTest("browsercontext-basic.spec.ts", "should make a copy of default viewport")]116        public async Task ShouldMakeACopyOfDefaultViewport()117        {118            var viewport = new ViewportSize119            {120                Width = 456,121                Height = 789122            };123            await using var context = await Browser.NewContextAsync(new() { ViewportSize = viewport });124            viewport.Width = 567;125            var page = await context.NewPageAsync();126            await TestUtils.VerifyViewportAsync(page, 456, 789);127        }128        [PlaywrightTest("browsercontext-basic.spec.ts", "should respect deviceScaleFactor")]129        public async Task ShouldRespectDeviceScaleFactor()130        {131            await using var context = await Browser.NewContextAsync(new()132            {133                DeviceScaleFactor = 3134            });135            var page = await context.NewPageAsync();136            Assert.AreEqual(3, await page.EvaluateAsync<int>("window.devicePixelRatio"));137        }138        [PlaywrightTest("browsercontext-basic.spec.ts", "should not allow deviceScaleFactor with null viewport")]139        public async Task ShouldNotAllowDeviceScaleFactorWithViewportDisabled()140        {141            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Browser.NewContextAsync(new()142            {143                ViewportSize = ViewportSize.NoViewport,144                DeviceScaleFactor = 3,145            }));146            Assert.AreEqual("\"deviceScaleFactor\" option is not supported with null \"viewport\"", exception.Message);147        }148        [PlaywrightTest("browsercontext-basic.spec.ts", "should not allow isMobile with null viewport")]149        public async Task ShouldNotAllowIsMobileWithViewportDisabled()150        {151            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Browser.NewContextAsync(new()152            {153                ViewportSize = ViewportSize.NoViewport,154                IsMobile = true,155            }));156            Assert.AreEqual("\"isMobile\" option is not supported with null \"viewport\"", exception.Message);157        }158        [PlaywrightTest("browsercontext-basic.spec.ts", "close() should work for empty context")]159        public async Task CloseShouldWorkForEmptyContext()160        {161            var context = await Browser.NewContextAsync();162            await context.CloseAsync();163        }164        [PlaywrightTest("browsercontext-basic.spec.ts", "close() should abort waitForEvent")]165        public async Task CloseShouldAbortWaitForEvent()166        {167            var context = await Browser.NewContextAsync();168            var waitTask = context.WaitForPageAsync();169            await context.CloseAsync();170            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => waitTask);171            Assert.AreEqual("Context closed", exception.Message);172        }173        [PlaywrightTest("browsercontext-basic.spec.ts", "should not report frameless pages on error")]174        public async Task ShouldNotReportFramelessPagesOnError()175        {176            var context = await Browser.NewContextAsync();177            var page = await context.NewPageAsync();178            Server.SetRoute("/empty.html", context =>179            {180                context.Response.ContentType = "text/html";181                return context.Response.WriteAsync($"<a href=\"{Server.EmptyPage}\" target=\"_blank\">Click me</a>");182            });183            IPage popup = null;184            context.Page += (_, e) => popup = e;185            await page.GotoAsync(Server.EmptyPage);186            await page.ClickAsync("'Click me'");187            await context.CloseAsync();188            if (popup != null)189            {190                Assert.True(popup.IsClosed);191                Assert.NotNull(popup.MainFrame);192            }193        }194        [PlaywrightTest("browsercontext-basic.spec.ts", "close() should be callable twice")]195        public async Task CloseShouldBeCallableTwice()196        {197            var context = await Browser.NewContextAsync();198            await TaskUtils.WhenAll(context.CloseAsync(), context.CloseAsync());199            await context.CloseAsync();200        }201        [PlaywrightTest("browsercontext-basic.spec.ts", "should return all of the pages")]202        public async Task ShouldReturnAllOfThePages()203        {204            await using var context = await Browser.NewContextAsync();205            var page = await context.NewPageAsync();206            var second = await context.NewPageAsync();207            Assert.AreEqual(2, context.Pages.Count);208            CollectionAssert.Contains(context.Pages, page);209            CollectionAssert.Contains(context.Pages, second);210        }211        [PlaywrightTest("browsercontext-basic.spec.ts", "BrowserContext.pages()", "should close all belonging pages once closing context")]212        public async Task ShouldCloseAllBelongingPagesOnceClosingContext()213        {214            await using var context = await Browser.NewContextAsync();215            await context.NewPageAsync();216            Assert.That(context.Pages, Has.Count.EqualTo(1));217            await context.CloseAsync();218            Assert.IsEmpty(context.Pages);219        }220        [PlaywrightTest("browsercontext-basic.spec.ts", "should disable javascript")]221        public async Task ShouldDisableJavascript()222        {223            await using (var context = await Browser.NewContextAsync(new() { JavaScriptEnabled = false }))224            {225                var page = await context.NewPageAsync();226                await page.GotoAsync("data:text/html, <script>var something = 'forbidden'</script>");227                var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => page.EvaluateAsync("something"));228                StringAssert.Contains(229                    TestConstants.IsWebKit ? "Can't find variable: something" : "something is not defined",230                    exception.Message);231            }...

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}...

WebHostServerFixture.cs

Source:WebHostServerFixture.cs

...81        internal async Task ShutDownAsync()82        {83            try84            {85                await Browser.CloseAsync();86                Playwright.Dispose();87            }88            catch (Exception ex)89            {90                Console.WriteLine(ex);91                throw new Exception("Shutdown failed", ex);92            }93        }94        public void Dispose()95        {96            Host?.Dispose();97            Host?.StopAsync();98        }99        protected IHost CreateWebHost()...

BinaryHttpClientTest.cs

Source:BinaryHttpClientTest.cs

...55                // JS interop call to intercept navigation56                await socket.WaitForEventAsync(WebSocketEvent.FrameReceived);57                await socket.WaitForEventAsync(WebSocketEvent.FrameSent);58                await page.WaitForSelectorAsync("ul");*/59                await page.CloseAsync();60            }61            //IssueRequest("/subdir/api/data");62            //Assert.Equal("OK", _responseStatus.Text);63            //Assert.Equal("OK", _responseStatusText.Text);64            //Assert.Equal("", _testOutcome.Text);65        }66        private void IssueRequest()67        {68            //var targetUri = new Uri(_apiServerFixture.RootUri, relativeUri);69            //SetValue("request-uri", targetUri.AbsoluteUri);70            //_appElement.FindElement(By.Id("send-request")).Click();71            //_responseStatus = Browser.Exists(By.Id("response-status"));72            //_responseStatusText = _appElement.FindElement(By.Id("response-status-text"));73            //_testOutcome = _appElement.FindElement(By.Id("test-outcome"));...

BrowserFactory.cs

Source:BrowserFactory.cs

...65                }66            }67            finally 68            {69                await browser.CloseAsync();70                browser = null;71            }72        }73    }74}...

BlazorWASMPlaywrightTests.cs

Source:BlazorWASMPlaywrightTests.cs

...15            var page = await browser.NewPageAsync();16            await page.GotoAsync(_server.RootUri.AbsoluteUri);17            var header = await page.WaitForSelectorAsync("h1");18            Assert.Equal("Hello, world!", await header.InnerTextAsync());19            await browser.CloseAsync();20        }21        [Fact]22        public async Task Counter()23        {24            var browser = await GetBrowser();25            var page = await browser.NewPageAsync();26            await page.GotoAsync(_server.RootUri + "counter", new PageGotoOptions() { WaitUntil = WaitUntilState.NetworkIdle });27            await page.ClickAsync("#IncrementBtn");28            // Selectors are not only CSS selectors. You can use xpath, css, or text selectors29            // By default there is a timeout of 30s. If the selector isn't found after the timeout, an exception is thrown.30            // More about selectors: https://playwright.dev/#version=v1.4.2&path=docs%2Fselectors.md31            await page.WaitForSelectorAsync("text=Current count: 1");32            await browser.CloseAsync();33        }34        public static async Task<IBrowser> GetBrowser()35        {36            var playwright = await Playwright.CreateAsync();37            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions()38            {39                Headless = false,40                SlowMo = 500041            });42            return browser;43        }44    }45}...

Html2Pdf.cs

Source:Html2Pdf.cs

...42                return bytes;43            }44            finally45            {46                await context.CloseAsync();47            }48        }49    }50    public class Html2PdfConversionRequest51    {52        public string Html { get; set; }53    }54}...

CloseAsync

Using AI Code Generation

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

CloseAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await browser.CloseAsync();14        }15    }16}17using System;18using System.Threading.Tasks;19using Microsoft.Playwright;20{21    {22        static async Task Main(string[] args)23        {24            using var playwright = await Playwright.CreateAsync();25            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions26            {27            });28            var context = await browser.NewContextAsync();29            var page = await context.NewPageAsync();30            await context.CloseAsync();31        }32    }33}34using System;35using System.Threading.Tasks;36using Microsoft.Playwright;37{38    {39        static async Task Main(string[] args)40        {41            using var playwright = await Playwright.CreateAsync();42            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions43            {44            });45            var context = await browser.NewContextAsync();46            var page = await context.NewPageAsync();47            await page.CloseAsync();48        }49    }50}51using System;52using System.Threading.Tasks;53using Microsoft.Playwright;54{55    {56        static async Task Main(string[] args)57        {58            using var playwright = await Playwright.CreateAsync();59            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions60            {61            });

CloseAsync

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            await browser.CloseAsync();11        }12    }13}

CloseAsync

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.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await browser.CloseAsync();12            Console.WriteLine("Press any key to exit.");13            Console.ReadKey();14        }15    }16}

CloseAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync();11            await browser.CloseAsync();12        }13    }14}

CloseAsync

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Playwright;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            var browser = await playwright.Chromium.LaunchAsync();9            var context = await browser.NewContextAsync();10            var page = await context.NewPageAsync();11            await page.ScreenshotAsync("google.png");12            await browser.CloseAsync();13        }14    }15}

CloseAsync

Using AI Code Generation

1using Microsoft.Playwright;2{3    {4        static async Task Main(string[] args)5        {6            using var playwright = await Playwright.CreateAsync();7            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions8            {9            });10            var page = await browser.NewPageAsync();11            await browser.CloseAsync();12        }13    }14}15using Microsoft.Playwright;16{17    {18        static async Task Main(string[] args)19        {20            using var playwright = await Playwright.CreateAsync();21            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions22            {23            });24            var page = await browser.NewPageAsync();25            await browser.NewContextAsync().CloseAsync();26        }27    }28}29using Microsoft.Playwright;30{31    {32        static async Task Main(string[] args)33        {34            using var playwright = await Playwright.CreateAsync();35            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions36            {37            });38            var page = await browser.NewPageAsync();39            await page.CloseAsync();40        }41    }42}

CloseAsync

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            using var browser = await playwright.Webkit.LaunchAsync();9            using var page = await browser.NewPageAsync();10            await browser.CloseAsync();11        }12    }13}14using Microsoft.Playwright;15using System.Threading.Tasks;16{17    {18        static async Task Main(string[] args)19        {20            using var playwright = await Playwright.CreateAsync();21            using var browser = await playwright.Webkit.LaunchAsync();22            using var page = await browser.NewPageAsync();23            await browser.DisposeAsync();24        }25    }26}27using Microsoft.Playwright;28using System.Threading.Tasks;29{30    {31        static async Task Main(string[] args)32        {33            using var playwright = await Playwright.CreateAsync();34            using var browser = await playwright.Webkit.LaunchAsync();35            using var page = await browser.NewPageAsync();

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.