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

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

Crawler.cs

Source:Crawler.cs

...198    }199200    private async Task<PageData?> AnalyzeUrlAsync(AnalyzeContext context)201    {202        var page = await context.BrowserContext.NewPageAsync();203        try204        {205            // perf: Enabling routing disables http cache206            await page.RouteAsync("**", async route =>207            {208                if (route.Request.ResourceType is "image" or "media" or "font")209                {210                    await route.AbortAsync();211                }212                else213                {214                    await route.ContinueAsync();215                }216            });
...

BrowserContext.cs

Source:BrowserContext.cs

...35using Microsoft.Playwright.Transport.Channels;36using Microsoft.Playwright.Transport.Protocol;37namespace Microsoft.Playwright.Core38{39    internal class BrowserContext : ChannelOwnerBase, IChannelOwner<BrowserContext>, IBrowserContext40    {41        private readonly TaskCompletionSource<bool> _closeTcs = new();42        private readonly Dictionary<string, Delegate> _bindings = new();43        private readonly BrowserContextInitializer _initializer;44        private readonly ITracing _tracing;45        private List<RouteSetting> _routes = new();46        private float? _defaultNavigationTimeout;47        private float? _defaultTimeout;48        internal BrowserContext(IChannelOwner parent, string guid, BrowserContextInitializer initializer) : base(parent, guid)49        {50            Channel = new(guid, parent.Connection, this);51            Channel.Close += (_, _) => OnClose();52            Channel.Page += Channel_OnPage;53            Channel.BindingCall += Channel_BindingCall;54            Channel.Route += Channel_Route;55            Channel.RequestFailed += (_, e) =>56            {57                e.Request.Failure = e.FailureText;58                e.Request.Timing.ResponseEnd = e.ResponseEndTiming;59                RequestFailed?.Invoke(this, e.Request);60                e.Page?.FireRequestFailed(e.Request);61                e.Response?.ReportFinished(e.FailureText);62            };63            Channel.Request += (_, e) =>64            {65                Request?.Invoke(this, e.Request);66                e.Page?.FireRequest(e.Request);67            };68            Channel.RequestFinished += (_, e) =>69            {70                e.Request.Timing.ResponseEnd = e.ResponseEndTiming;71                e.Request.Sizes = e.RequestSizes;72                RequestFinished?.Invoke(this, e.Request);73                e.Page?.FireRequestFinished(e.Request);74                e.Response?.ReportFinished();75            };76            Channel.Response += (_, e) =>77            {78                Response?.Invoke(this, e.Response);79                e.Page?.FireResponse(e.Response);80            };81            _tracing = initializer.Tracing;82            _initializer = initializer;83            Browser = parent as IBrowser;84        }85        public event EventHandler<IBrowserContext> Close;86        public event EventHandler<IPage> Page;87        public event EventHandler<IRequest> Request;88        public event EventHandler<IRequest> RequestFailed;89        public event EventHandler<IRequest> RequestFinished;90        public event EventHandler<IResponse> Response;91        public ITracing Tracing92        {93            get => _tracing;94            set => throw new NotSupportedException();95        }96        ChannelBase IChannelOwner.Channel => Channel;97        IChannel<BrowserContext> IChannelOwner<BrowserContext>.Channel => Channel;98        public IBrowser Browser { get; }99        public IReadOnlyList<IPage> Pages => PagesList;100        internal float DefaultNavigationTimeout101        {102            get => _defaultNavigationTimeout ?? PlaywrightImpl.DefaultTimeout;103            set104            {105                _defaultNavigationTimeout = value;106                Channel.SetDefaultNavigationTimeoutNoReplyAsync(value).IgnoreException();107            }108        }109        internal float DefaultTimeout110        {111            get => _defaultTimeout ?? PlaywrightImpl.DefaultTimeout;112            set113            {114                _defaultTimeout = value;115                Channel.SetDefaultTimeoutNoReplyAsync(value).IgnoreException();116            }117        }118        internal BrowserContextChannel Channel { get; }119        internal List<Page> PagesList { get; } = new();120        internal Page OwnerPage { get; set; }121        internal List<Worker> ServiceWorkersList { get; } = new();122        internal bool IsChromium => _initializer.IsChromium;123        internal BrowserNewContextOptions Options { get; set; }124        public Task AddCookiesAsync(IEnumerable<Cookie> cookies) => Channel.AddCookiesAsync(cookies);125        public Task AddInitScriptAsync(string script = null, string scriptPath = null)126        {127            if (string.IsNullOrEmpty(script))128            {129                script = ScriptsHelper.EvaluationScript(script, scriptPath);130            }131            return Channel.AddInitScriptAsync(script);132        }133        public Task ClearCookiesAsync() => Channel.ClearCookiesAsync();134        public Task ClearPermissionsAsync() => Channel.ClearPermissionsAsync();135        public async Task CloseAsync()136        {137            try138            {139                if (Options.RecordHarPath != null)140                {141                    Artifact artifact = await Channel.HarExportAsync().ConfigureAwait(false);142                    await artifact.SaveAsAsync(Options.RecordHarPath).ConfigureAwait(false);143                    await artifact.DeleteAsync().ConfigureAwait(false);144                }145                await Channel.CloseAsync().ConfigureAwait(false);146                await _closeTcs.Task.ConfigureAwait(false);147            }148            catch (Exception e) when (DriverMessages.IsSafeCloseError(e))149            {150                // Swallow exception151            }152        }153        public Task<IReadOnlyList<BrowserContextCookiesResult>> CookiesAsync(IEnumerable<string> urls = null) => Channel.CookiesAsync(urls);154        public Task ExposeBindingAsync(string name, Action callback, BrowserContextExposeBindingOptions options = default)155            => ExposeBindingAsync(name, callback, handle: options?.Handle ?? false);156        public Task ExposeBindingAsync(string name, Action<BindingSource> callback)157            => ExposeBindingAsync(name, (Delegate)callback);158        public Task ExposeBindingAsync<T>(string name, Action<BindingSource, T> callback)159            => ExposeBindingAsync(name, (Delegate)callback);160        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, TResult> callback)161            => ExposeBindingAsync(name, (Delegate)callback);162        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, IJSHandle, TResult> callback)163            => ExposeBindingAsync(name, callback, true);164        public Task ExposeBindingAsync<T, TResult>(string name, Func<BindingSource, T, TResult> callback)165            => ExposeBindingAsync(name, (Delegate)callback);166        public Task ExposeBindingAsync<T1, T2, TResult>(string name, Func<BindingSource, T1, T2, TResult> callback)167            => ExposeBindingAsync(name, (Delegate)callback);168        public Task ExposeBindingAsync<T1, T2, T3, TResult>(string name, Func<BindingSource, T1, T2, T3, TResult> callback)169            => ExposeBindingAsync(name, (Delegate)callback);170        public Task ExposeBindingAsync<T1, T2, T3, T4, TResult>(string name, Func<BindingSource, T1, T2, T3, T4, TResult> callback)171            => ExposeBindingAsync(name, (Delegate)callback);172        public Task ExposeFunctionAsync(string name, Action callback)173            => ExposeBindingAsync(name, (BindingSource _) => callback());174        public Task ExposeFunctionAsync<T>(string name, Action<T> callback)175            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));176        public Task ExposeFunctionAsync<TResult>(string name, Func<TResult> callback)177            => ExposeBindingAsync(name, (BindingSource _) => callback());178        public Task ExposeFunctionAsync<T, TResult>(string name, Func<T, TResult> callback)179            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));180        public Task ExposeFunctionAsync<T1, T2, TResult>(string name, Func<T1, T2, TResult> callback)181            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2) => callback(t1, t2));182        public Task ExposeFunctionAsync<T1, T2, T3, TResult>(string name, Func<T1, T2, T3, TResult> callback)183            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3) => callback(t1, t2, t3));184        public Task ExposeFunctionAsync<T1, T2, T3, T4, TResult>(string name, Func<T1, T2, T3, T4, TResult> callback)185            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3, T4 t4) => callback(t1, t2, t3, t4));186        public Task GrantPermissionsAsync(IEnumerable<string> permissions, BrowserContextGrantPermissionsOptions options = default)187            => Channel.GrantPermissionsAsync(permissions, options?.Origin);188        public async Task<IPage> NewPageAsync()189        {190            if (OwnerPage != null)191            {192                throw new PlaywrightException("Please use Browser.NewContextAsync()");193            }194            return (await Channel.NewPageAsync().ConfigureAwait(false)).Object;195        }196        public Task RouteAsync(string url, Action<IRoute> handler, BrowserContextRouteOptions options = default)197            => RouteAsync(new Regex(CombineUrlWithBase(url).GlobToRegex()), null, handler, options);198        public Task RouteAsync(Regex url, Action<IRoute> handler, BrowserContextRouteOptions options = default)199            => RouteAsync(url, null, handler, options);200        public Task RouteAsync(Func<string, bool> url, Action<IRoute> handler, BrowserContextRouteOptions options = default)201            => RouteAsync(null, url, handler, options);202        public Task SetExtraHTTPHeadersAsync(IEnumerable<KeyValuePair<string, string>> headers)203            => Channel.SetExtraHTTPHeadersAsync(headers);204        public Task SetGeolocationAsync(Geolocation geolocation) => Channel.SetGeolocationAsync(geolocation);205        public Task SetOfflineAsync(bool offline) => Channel.SetOfflineAsync(offline);206        public async Task<string> StorageStateAsync(BrowserContextStorageStateOptions options = default)207        {208            string state = JsonSerializer.Serialize(209                await Channel.GetStorageStateAsync().ConfigureAwait(false),210                JsonExtensions.DefaultJsonSerializerOptions);211            if (!string.IsNullOrEmpty(options?.Path))212            {213                File.WriteAllText(options?.Path, state);214            }215            return state;216        }217        public Task UnrouteAsync(string urlString, Action<IRoute> handler = default)218            => UnrouteAsync(new Regex(CombineUrlWithBase(urlString).GlobToRegex()), null, handler);219        public Task UnrouteAsync(Regex urlRegex, Action<IRoute> handler = default)220            => UnrouteAsync(urlRegex, null, handler);221        public Task UnrouteAsync(Func<string, bool> urlFunc, Action<IRoute> handler = default)222            => UnrouteAsync(null, urlFunc, handler);223        public async Task<T> InnerWaitForEventAsync<T>(PlaywrightEvent<T> playwrightEvent, Func<Task> action = default, Func<T, bool> predicate = default, float? timeout = default)224        {225            if (playwrightEvent == null)226            {227                throw new ArgumentException("Page event is required", nameof(playwrightEvent));228            }229            timeout ??= DefaultTimeout;230            using var waiter = new Waiter(this, $"context.WaitForEventAsync(\"{playwrightEvent.Name}\")");231            waiter.RejectOnTimeout(Convert.ToInt32(timeout), $"Timeout {timeout}ms exceeded while waiting for event \"{playwrightEvent.Name}\"");232            if (playwrightEvent.Name != BrowserContextEvent.Close.Name)233            {234                waiter.RejectOnEvent<IBrowserContext>(this, BrowserContextEvent.Close.Name, new("Context closed"));235            }236            var result = waiter.WaitForEventAsync(this, playwrightEvent.Name, predicate);237            if (action != null)238            {239                await WrapApiBoundaryAsync(() => Task.WhenAll(result, action())).ConfigureAwait(false);240            }241            return await result.ConfigureAwait(false);242        }243        public Task<IPage> WaitForPageAsync(BrowserContextWaitForPageOptions options = default)244            => InnerWaitForEventAsync(BrowserContextEvent.Page, null, options?.Predicate, options?.Timeout);245        public Task<IPage> RunAndWaitForPageAsync(Func<Task> action, BrowserContextRunAndWaitForPageOptions options = default)246            => InnerWaitForEventAsync(BrowserContextEvent.Page, action, options?.Predicate, options?.Timeout);247        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());248        public void SetDefaultNavigationTimeout(float timeout) => DefaultNavigationTimeout = timeout;249        public void SetDefaultTimeout(float timeout) => DefaultTimeout = timeout;250        internal void OnRoute(Route route, IRequest request)251        {252            foreach (var routeHandler in _routes)253            {254                if (255                    routeHandler.Regex?.IsMatch(request.Url) == true ||256                    routeHandler.Function?.Invoke(request.Url) == true)257                {258                    try259                    {260                        routeHandler.Handle(route);261                    }262                    finally263                    {264                        if (!routeHandler.IsActive())265                        {266                            _routes.Remove(routeHandler);267                            if (_routes.Count == 0)268                            {269                                DisableInterceptionAsync().ConfigureAwait(false);270                            }271                        }272                    }273                    return;274                }275            }276            route.ContinueAsync().IgnoreException();277        }278        internal async Task DisableInterceptionAsync()279        {280            await Channel.SetNetworkInterceptionEnabledAsync(false).ConfigureAwait(false);281        }282        internal bool UrlMatches(string url, string glob)283           => new Regex(CombineUrlWithBase(glob).GlobToRegex()).Match(url).Success;284        internal string CombineUrlWithBase(string url)285        {286            var baseUrl = Options?.BaseURL;287            if (string.IsNullOrEmpty(baseUrl)288                || (url?.StartsWith("*", StringComparison.InvariantCultureIgnoreCase) ?? false)289                || !Uri.IsWellFormedUriString(url, UriKind.RelativeOrAbsolute))290            {291                return url;292            }293            var mUri = new Uri(url, UriKind.RelativeOrAbsolute);294            if (!mUri.IsAbsoluteUri)295            {296                return new Uri(new Uri(baseUrl), mUri).ToString();297            }298            return url;299        }300        private Task RouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler, BrowserContextRouteOptions options)301            => RouteAsync(new()302            {303                Regex = urlRegex,304                Function = urlFunc,305                Handler = handler,306                Times = options?.Times,307            });308        private Task RouteAsync(RouteSetting setting)309        {310            _routes.Insert(0, setting);311            if (_routes.Count == 1)312            {313                return Channel.SetNetworkInterceptionEnabledAsync(true);314            }315            return Task.CompletedTask;316        }317        private Task UnrouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler = null)318            => UnrouteAsync(new()319            {320                Function = urlFunc,321                Regex = urlRegex,322                Handler = handler,323            });324        private Task UnrouteAsync(RouteSetting setting)325        {326            var newRoutesList = new List<RouteSetting>();327            newRoutesList.AddRange(_routes.Where(r =>328                (setting.Regex != null && !(r.Regex == setting.Regex || (r.Regex.ToString() == setting.Regex.ToString() && r.Regex.Options == setting.Regex.Options))) ||329                (setting.Function != null && r.Function != setting.Function) ||330                (setting.Handler != null && r.Handler != setting.Handler)));331            _routes = newRoutesList;332            if (_routes.Count == 0)333            {334                return Channel.SetNetworkInterceptionEnabledAsync(false);335            }336            return Task.CompletedTask;337        }338        internal void OnClose()339        {340            if (Browser != null)341            {342                ((Browser)Browser).BrowserContextsList.Remove(this);343            }344            Close?.Invoke(this, this);345            _closeTcs.TrySetResult(true);346        }347        private void Channel_OnPage(object sender, BrowserContextPageEventArgs e)348        {349            var page = e.PageChannel.Object;350            page.Context = this;351            PagesList.Add(page);352            Page?.Invoke(this, page);353            if (page.Opener?.IsClosed == false)354            {355                page.Opener.NotifyPopup(page);356            }357        }358        private void Channel_BindingCall(object sender, BindingCallEventArgs e)359        {360            if (_bindings.TryGetValue(e.BindingCall.Name, out var binding))361            {...

BrowserContextBasicTests.cs

Source:BrowserContextBasicTests.cs

...29using Microsoft.Playwright.NUnit;30using NUnit.Framework;31namespace Microsoft.Playwright.Tests32{33    public class BrowserContextBasicTests : BrowserTestEx34    {35        [PlaywrightTest("browsercontext-basic.spec.ts", "should create new context")]36        public async Task ShouldCreateNewContext()37        {38            await using var browser = await BrowserType.LaunchAsync();39            Assert.IsEmpty(browser.Contexts);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();...

BrowserType.cs

Source:BrowserType.cs

...70                ignoreAllDefaultArgs: options.IgnoreAllDefaultArgs).ConfigureAwait(false)).Object;71            browser.LocalUtils = Playwright.Utils;72            return browser;73        }74        public async Task<IBrowserContext> LaunchPersistentContextAsync(string userDataDir, BrowserTypeLaunchPersistentContextOptions options = default)75        {76            options ??= new BrowserTypeLaunchPersistentContextOptions();77            var context = (await _channel.LaunchPersistentContextAsync(78                userDataDir,79                headless: options.Headless,80                channel: options.Channel,81                executablePath: options.ExecutablePath,82                args: options.Args,83                proxy: options.Proxy,84                downloadsPath: options.DownloadsPath,85                tracesDir: options.TracesDir,86                chromiumSandbox: options.ChromiumSandbox,87                handleSIGINT: options.HandleSIGINT,88                handleSIGTERM: options.HandleSIGTERM,89                handleSIGHUP: options.HandleSIGHUP,90                timeout: options.Timeout,91                env: options.Env,92                devtools: options.Devtools,93                slowMo: options.SlowMo,94                acceptDownloads: options.AcceptDownloads,95                ignoreHTTPSErrors: options.IgnoreHTTPSErrors,96                bypassCSP: options.BypassCSP,97                viewportSize: options.ViewportSize,98                screenSize: options.ScreenSize,99                userAgent: options.UserAgent,100                deviceScaleFactor: options.DeviceScaleFactor,101                isMobile: options.IsMobile,102                hasTouch: options.HasTouch,103                javaScriptEnabled: options.JavaScriptEnabled,104                timezoneId: options.TimezoneId,105                geolocation: options.Geolocation,106                locale: options.Locale,107                permissions: options.Permissions,108                extraHTTPHeaders: options.ExtraHTTPHeaders,109                offline: options.Offline,110                httpCredentials: options.HttpCredentials,111                colorScheme: options.ColorScheme,112                reducedMotion: options.ReducedMotion,113                recordHarPath: options.RecordHarPath,114                recordHarOmitContent: options.RecordHarOmitContent,115                recordVideo: Browser.GetVideoArgs(options.RecordVideoDir, options.RecordVideoSize),116                ignoreDefaultArgs: options.IgnoreDefaultArgs,117                ignoreAllDefaultArgs: options.IgnoreAllDefaultArgs,118                baseUrl: options.BaseURL,119                forcedColors: options.ForcedColors).ConfigureAwait(false)).Object;120            // TODO: unite with a single browser context options type which is derived from channels121            context.Options = new()122            {123                RecordVideoDir = options.RecordVideoDir,124                RecordVideoSize = options.RecordVideoSize,125                RecordHarPath = options.RecordHarPath,126                RecordHarOmitContent = options.RecordHarOmitContent,127            };128            ((Core.Tracing)context.Tracing).LocalUtils = Playwright.Utils;129            return context;130        }131        public async Task<IBrowser> ConnectAsync(string wsEndpoint, BrowserTypeConnectOptions options = null)132        {133            options ??= new BrowserTypeConnectOptions();134            var headers = new List<KeyValuePair<string, string>>(options.Headers ?? new Dictionary<string, string>())135            {136                new KeyValuePair<string, string>("x-playwright-browser", Name),137            }.ToDictionary(pair => pair.Key, pair => pair.Value);138            JsonPipe pipe = (await _channel.ConnectAsync(wsEndpoint: wsEndpoint, headers: headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false)).Object;139            void ClosePipe()140            {141                pipe.CloseAsync().IgnoreException();142            }143#pragma warning disable CA2000 // Dispose objects before losing scope144            var connection = new Connection();145#pragma warning restore CA2000146            connection.MarkAsRemote();147            connection.Close += (_, _) => ClosePipe();148            string closeError = null;149            Browser browser = null;150            void OnPipeClosed()151            {152                // Emulate all pages, contexts and the browser closing upon disconnect.153                foreach (BrowserContext context in browser?.BrowserContextsList.ToArray() ?? Array.Empty<BrowserContext>())154                {155                    foreach (Page page in context.PagesList.ToArray())156                    {157                        page.OnClose();158                    }159                    context.OnClose();160                }161                browser?.DidClose();162                connection.DoClose(closeError != null ? closeError : DriverMessages.BrowserClosedExceptionMessage);163            }164            pipe.Closed += (_, _) => OnPipeClosed();165            connection.OnMessage = async (object message) =>166            {167                try168                {169                    await pipe.SendAsync(message).ConfigureAwait(false);170                }171                catch (Exception e) when (DriverMessages.IsSafeCloseError(e))172                {173                    // swallow exception174                }175                catch176                {177                    OnPipeClosed();178                }179            };180            pipe.Message += (_, message) =>181            {182                try183                {184                    connection.Dispatch(message);185                }186                catch (Exception ex)187                {188                    closeError = ex.ToString();189                    _channel.Connection.TraceMessage("pw:dotnet", $"Dispatching error: {ex.Message}\n{ex.StackTrace}");190                    ClosePipe();191                }192            };193            async Task<IBrowser> CreateBrowserAsync()194            {195                var playwright = await connection.InitializePlaywrightAsync().ConfigureAwait(false);196                playwright.Connection = connection;197                if (playwright.PreLaunchedBrowser == null)198                {199                    ClosePipe();200                    throw new ArgumentException("Malformed endpoint. Did you use launchServer method?");201                }202                browser = playwright.PreLaunchedBrowser;203                browser.ShouldCloseConnectionOnClose = true;204                browser.Disconnected += (_, _) => ClosePipe();205                browser.LocalUtils = Playwright.Utils;206                return playwright.PreLaunchedBrowser;207            }208            var task = CreateBrowserAsync();209            var timeout = options?.Timeout != null ? (int)options.Timeout : 30_000;210            return await task.WithTimeout(timeout, _ => throw new TimeoutException($"BrowserType.ConnectAsync: Timeout {options.Timeout}ms exceeded")).ConfigureAwait(false);211        }212        public async Task<IBrowser> ConnectOverCDPAsync(string endpointURL, BrowserTypeConnectOverCDPOptions options = null)213        {214            if (Name != "chromium")215            {216                throw new ArgumentException("Connecting over CDP is only supported in Chromium.");217            }218            options ??= new BrowserTypeConnectOverCDPOptions();219            JsonElement result = await _channel.ConnectOverCDPAsync(endpointURL, headers: options.Headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false);220            Browser browser = result.GetProperty("browser").ToObject<Browser>(_channel.Connection.DefaultJsonSerializerOptions);221            if (result.TryGetProperty("defaultContext", out JsonElement defaultContextValue))222            {223                browser.BrowserContextsList.Add(defaultContextValue.ToObject<BrowserContext>(_channel.Connection.DefaultJsonSerializerOptions));224            }225            browser.LocalUtils = Playwright.Utils;226            return browser;227        }228    }229}...

BrowserContextStorageStateTests.cs

Source:BrowserContextStorageStateTests.cs

1/*2 * MIT License3 *4 * Copyright (c) Microsoft Corporation.5 *6 * Permission is hereby granted, free of charge, to any person obtaining a copy7 * of this software and associated documentation files (the "Software"), to deal8 * in the Software without restriction, including without limitation the rights9 * to use, copy, modify, merge, publish, distribute, sublicense, and / or sell10 * copies of the Software, and to permit persons to whom the Software is11 * furnished to do so, subject to the following conditions:12 *13 * The above copyright notice and this permission notice shall be included in all14 * copies or substantial portions of the Software.15 *16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE22 * SOFTWARE.23 */24using System.IO;25using System.Text.Json;26using System.Threading.Tasks;27using Microsoft.Playwright.Core;28using NUnit.Framework;29namespace Microsoft.Playwright.Tests30{31    public sealed class BrowsercontextStorageStateTests : PageTestEx32    {33        [PlaywrightTest("browsercontext-storage-state.spec.ts", "should capture local storage")]34        public async Task ShouldCaptureLocalStorage()35        {36            var page1 = await Context.NewPageAsync();37            await page1.RouteAsync("**/*", (route) =>38            {39                route.FulfillAsync(new() { Body = "<html></html>" });40            });41            await page1.GotoAsync("https://www.example.com");42            await page1.EvaluateAsync(@"() =>43            {44                localStorage['name1'] = 'value1';45            }");46            await page1.GotoAsync("https://www.domain.com");47            await page1.EvaluateAsync(@"() =>48            {49                localStorage['name2'] = 'value2';50            }");51            string storage = await Context.StorageStateAsync();52            // TODO: think about IVT-in the StorageState and serializing53            string expected = @"{""cookies"":[],""origins"":[{""origin"":""https://www.example.com"",""localStorage"":[{""name"":""name1"",""value"":""value1""}]},{""origin"":""https://www.domain.com"",""localStorage"":[{""name"":""name2"",""value"":""value2""}]}]}";54            Assert.AreEqual(expected, storage);55        }56        [PlaywrightTest("browsercontext-storage-state.spec.ts", "should set local storage")]57        public async Task ShouldSetLocalStorage()58        {59            var context = await Browser.NewContextAsync(new()60            {61                StorageState = "{\"cookies\":[],\"origins\":[{\"origin\":\"https://www.example.com\",\"localStorage\":[{\"name\":\"name1\",\"value\":\"value1\"}]}]}",62            });63            var page = await context.NewPageAsync();64            await page.RouteAsync("**/*", (route) =>65            {66                route.FulfillAsync(new() { Body = "<html></html>" });67            });68            await page.GotoAsync("https://www.example.com");69            var localStorage = await page.EvaluateAsync<string[]>("Object.keys(window.localStorage)");70            Assert.AreEqual(localStorage, new string[] { "name1" });71            var name1Value = await page.EvaluateAsync<string>("window.localStorage.getItem('name1')");72            Assert.AreEqual(name1Value, "value1");73        }74        [PlaywrightTest("browsercontext-storage-state.spec.ts", "should round-trip through the file")]75        public async Task ShouldRoundTripThroughTheFile()76        {77            var page1 = await Context.NewPageAsync();78            await page1.RouteAsync("**/*", (route) =>79            {80                route.FulfillAsync(new() { Body = "<html></html>" });81            });82            await page1.GotoAsync("https://www.example.com");83            await page1.EvaluateAsync(@"() =>84            {85                localStorage['name1'] = 'value1';86                document.cookie = 'username=John Doe';87            }");88            using var tempDir = new TempDirectory();89            string path = Path.Combine(tempDir.Path, "storage-state.json");90            string storage = await Context.StorageStateAsync(new() { Path = path });91            Assert.AreEqual(storage, File.ReadAllText(path));92            await using var context = await Browser.NewContextAsync(new() { StorageStatePath = path });93            var page2 = await context.NewPageAsync();94            await page2.RouteAsync("**/*", (route) =>95            {96                route.FulfillAsync(new() { Body = "<html></html>" });97            });98            await page2.GotoAsync("https://www.example.com");99            Assert.AreEqual("value1", await page2.EvaluateAsync<string>("localStorage['name1']"));100            Assert.AreEqual("username=John Doe", await page2.EvaluateAsync<string>("document.cookie"));101        }102        [PlaywrightTest("browsercontext-storage-state.spec.ts", "should capture cookies")]103        public async Task ShouldCaptureCookies()104        {105            Server.SetRoute("/setcookie.html", context =>106            {107                context.Response.Cookies.Append("a", "b");108                context.Response.Cookies.Append("empty", "");109                return Task.CompletedTask;110            });111            await Page.GotoAsync(Server.Prefix + "/setcookie.html");112            CollectionAssert.AreEqual(new[] { "a=b", "empty=" }, await Page.EvaluateAsync<string[]>(@"() =>113            {114                const cookies = document.cookie.split(';');115                return cookies.map(cookie => cookie.trim()).sort();116            }"));117            var storageState = await Context.StorageStateAsync();118            StringAssert.Contains(@"""name"":""a"",""value"":""b""", storageState);119            StringAssert.Contains(@"""name"":""empty"",""value"":""""", storageState);120            if (TestConstants.IsWebKit || TestConstants.IsFirefox)121            {122                StringAssert.Contains(@"""sameSite"":""None""", storageState);123            }124            else125            {126                StringAssert.Contains(@"""sameSite"":""Lax""", storageState);127            }128            StringAssert.DoesNotContain(@"""url"":null", storageState);129            await using var context2 = await Browser.NewContextAsync(new() { StorageState = storageState });130            var page2 = await context2.NewPageAsync();131            await page2.GotoAsync(Server.EmptyPage);132            CollectionAssert.AreEqual(new[] { "a=b", "empty=" }, await page2.EvaluateAsync<string[]>(@"() =>133            {134                const cookies = document.cookie.split(';');135                return cookies.map(cookie => cookie.trim()).sort();136            }"));137        }138    }139}...

Worker.cs

Source:Worker.cs

...42                if (Page != null)43                {44                    Page.WorkersList.Remove(this);45                }46                if (BrowserContext != null)47                {48                    BrowserContext.ServiceWorkersList.Remove(this);49                }50                Close?.Invoke(this, this);51            };52        }53        public event EventHandler<IWorker> Close;54        public string Url => _initializer.Url;55        ChannelBase IChannelOwner.Channel => _channel;56        IChannel<Worker> IChannelOwner<Worker>.Channel => _channel;57        internal Page Page { get; set; }58        internal BrowserContext BrowserContext { get; set; }59        public async Task<T> EvaluateAsync<T>(string expression, object arg = null)60            => ScriptsHelper.ParseEvaluateResult<T>(await _channel.EvaluateExpressionAsync(61                expression,62                null,63                ScriptsHelper.SerializedArgument(arg)).ConfigureAwait(false));64        public async Task<IJSHandle> EvaluateHandleAsync(string expression, object arg = null)65            => await _channel.EvaluateExpressionHandleAsync(66                expression,67                null,68                ScriptsHelper.SerializedArgument(arg))69            .ConfigureAwait(false);70        public async Task<IWorker> WaitForCloseAsync(Func<Task> action = default, float? timeout = default)71        {72            using var waiter = new Waiter(this, "worker.WaitForCloseAsync");...

PlaywrightDriverSetup.cs

Source:PlaywrightDriverSetup.cs

...31                    case BrowserType.Webkit:32                        browser = await playwright.Webkit.LaunchAsync(browserTypeLaunchOptions);33                        break;34                }35                IBrowserContext browserContext = await browser.NewContextAsync(new BrowserNewContextOptions36                {37                    IgnoreHTTPSErrors = true,38                    ViewportSize = ViewportSize.NoViewport39                });40                IPage page = await browserContext.NewPageAsync();41                _playwrightDriver = new PlaywrightDriver()42                {43                    Playwright = playwright,44                    Browser = browser,45                    BrowserContext = browserContext,46                    Page = page47                };48            }49            catch (Exception e)50            {51                Console.WriteLine(e);52                throw;53            }54            return _playwrightDriver;55        }56    }57}...

PlaywrightDriver.cs

Source:PlaywrightDriver.cs

...4    public class PlaywrightDriver5    {6        public IPlaywright Playwright { get; set; }7        public IBrowser Browser { get; set; }8        public IBrowserContext BrowserContext { get; set; }9        public IPage Page { get; set; }10    }11}...

BrowserContext

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3{4    {5        static void Main(string[] args)6        {7            Console.WriteLine("Hello World!");8            Playwright.InstallAsync().Wait();9            using (var playwright = Playwright.CreateAsync().Result)10            {11                using (var browser = playwright.Chromium.LaunchAsync().Result)12                {13                    using (var context = browser.NewContextAsync().Result)14                    {15                        using (var page = context.NewPageAsync().Result)16                        {17                            Console.WriteLine(page.TitleAsync().Result);18                        }19                    }20                }21            }22        }23    }24}25using Microsoft.Playwright;26using System;27{28    {29        static void Main(string[] args)30        {31            Console.WriteLine("Hello World!");32            Playwright.InstallAsync().Wait();33            using (var playwright = Playwright.CreateAsync().Result)34            {35                using (var browser = playwright.Chromium.LaunchAsync().Result)36                {37                    using (var context = browser.NewContextAsync().Result)38                    {39                        using (var page = context.NewPageAsync().Result)40                        {41                            Console.WriteLine(page.TitleAsync().Result);42                        }43                    }44                }45            }46        }47    }48}49using Microsoft.Playwright;50using System;51{52    {53        static void Main(string[] args)54        {55            Console.WriteLine("Hello World!");56            Playwright.InstallAsync().Wait();57            using (var playwright = Playwright.CreateAsync().Result)58            {59                using (var browser = playwright.Chromium.LaunchAsync().Result)60                {61                    using (var context = browser.NewContextAsync().Result)62                    {63                        using (var page = context.NewPageAsync().Result)64                        {65                            Console.WriteLine(page.TitleAsync().Result);66                        }67                    }68                }69            }70        }71    }72}73using Microsoft.Playwright;

BrowserContext

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Helpers;3using Microsoft.Playwright.Input;4using Microsoft.Playwright.Network;5using Microsoft.Playwright.Playwright;6{7    {8        static async Task Main(string[] args)9        {10            using var playwright = await Playwright.CreateAsync();11            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14        }15    }16}17using Microsoft.Playwright;18using Microsoft.Playwright.Helpers;19using Microsoft.Playwright.Input;20using Microsoft.Playwright.Network;21using Microsoft.Playwright.Playwright;22{23    {24        static async Task Main(string[] args)25        {26            using var playwright = await Playwright.CreateAsync();27            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });28            var context = await browser.NewContextAsync();29            var page = await context.NewPageAsync();30        }31    }32}33using Microsoft.Playwright;34using Microsoft.Playwright.Helpers;35using Microsoft.Playwright.Input;

BrowserContext

Using AI Code Generation

1var context = await browser.NewContextAsync(new Browser.NewContextOptions {2    RecordVideo = new Browser.NewContextOptions.VideoSize {3        Size = new Browser.NewContextOptions.VideoSize.SizeUnion {4        },5    },6    RecordHar = new Browser.NewContextOptions.RecordHar {7    },8    RecordTrace = new Browser.NewContextOptions.RecordTrace {9    },10    StorageState = new Browser.NewContextOptions.StorageState {11    },12    Viewport = new Browser.NewContextOptions.ViewportUnion {13    },14    Geolocation = new Browser.NewContextOptions.Geolocation {15    },16    Permissions = new[] {17    },18    ExtraHTTPHeaders = new Dictionary<string, string> {19    },20    HttpCredentials = new Browser.NewContextOptions.HttpCredentials {21    },22    UserAgent = "Mozilla/5.0 (X11; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/64.0",23    Proxy = new Browser.NewContextOptions.Proxy {24        Bypass = new[] {

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.