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How to use listener method of PuppeteerSharp.Tests.TargetTests.TargetTests class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.TargetTests.TargetTests.listener

TargetTests.cs

Source:TargetTests.cs

...119        [Fact]120        public async Task ShouldNotReportUninitializedPages()121        {122            var targetChanged = false;123            EventHandler<TargetChangedArgs> listener = (sender, e) => targetChanged = true;124            Browser.TargetChanged += listener;125            var targetCompletionTask = new TaskCompletionSource<Target>();126            void TargetCreatedEventHandler(object sender, TargetChangedArgs e)127            {128                targetCompletionTask.SetResult(e.Target);129                Browser.TargetCreated -= TargetCreatedEventHandler;130            }131            Browser.TargetCreated += TargetCreatedEventHandler;132            var newPageTask = Browser.NewPageAsync();133            var target = await targetCompletionTask.Task;134            Assert.Equal(TestConstants.AboutBlank, target.Url);135            var newPage = await newPageTask;136            targetCompletionTask = new TaskCompletionSource<Target>();137            Browser.TargetCreated += TargetCreatedEventHandler;138            var evaluateTask = newPage.EvaluateExpressionHandleAsync("window.open('about:blank')");139            var target2 = await targetCompletionTask.Task;140            Assert.Equal(TestConstants.AboutBlank, target2.Url);141            await evaluateTask;142            await newPage.CloseAsync();143            Assert.False(targetChanged, "target should not be reported as changed");144            Browser.TargetChanged -= listener;145        }146        [Fact]147        public async Task ShouldNotCrashWhileRedirectingIfOriginalRequestWasMissed()148        {149            var serverResponseEnd = new TaskCompletionSource<bool>();150            var serverResponse = (HttpResponse)null;151            Server.SetRoute("/one-style.css", context => { serverResponse = context.Response; return serverResponseEnd.Task; });152            // Open a new page. Use window.open to connect to the page later.153            await Task.WhenAll(154              Page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/one-style.html"),155              Server.WaitForRequest("/one-style.css")156            );157            // Connect to the opened page.158            var target = Browser.Targets().First(t => t.Url.Contains("one-style.html"));...

listener

Using AI Code Generation

1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp;5{6    {7        [PuppeteerTest("target.spec.ts", "TargetTests", "should fire targetchanged when a target url changes")]8        public async Task ShouldFireTargetChangedWhenATargetURLChanges()9        {10            var targetChanged = new TaskCompletionSource<TargetChangedArgs>();11            Page.TargetChanged += (sender, e) => targetChanged.TrySetResult(e);12            await Page.GoToAsync(TestConstants.EmptyPage);13            var otherPage = await Context.NewPageAsync();14            await otherPage.GoToAsync(TestConstants.EmptyPage);15            await otherPage.CloseAsync();16            var args = await targetChanged.Task;17            Assert.Equal(otherPage.Target, args.Target);18            Assert.Equal(Page.Target, args.Target);19        }20    }21}22using System;23using System.IO;24using System.Threading.Tasks;25using PuppeteerSharp;26{27    {28        [PuppeteerTest("target.spec.ts", "TargetTests", "should not fire targetchanged when a target changes but its url does not")]29        public async Task ShouldNotFireTargetChangedWhenATargetChangesButItsURLDoesNot()30        {31            var targetChanged = new TaskCompletionSource<TargetChangedArgs>();32            Page.TargetChanged += (sender, e) => targetChanged.TrySetResult(e);33            await Page.GoToAsync(TestConstants.EmptyPage);34            var otherPage = await Context.NewPageAsync();35            await otherPage.GoToAsync(TestConstants.EmptyPage);36            await otherPage.EvaluateExpressionAsync("1");37            await otherPage.CloseAsync();38            var exception = await Assert.ThrowsAsync<TimeoutException>(async () => await targetChanged.Task);39            Assert.Contains("Timeout", exception.Message);40        }41    }42}43using System;44using System.IO;45using System.Threading.Tasks;46using PuppeteerSharp;47{48    {

listener

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Messaging;5{6    {7        [PuppeteerTest("target.spec.ts", "Target", "should fire targetcreated, targetchanged and targetdestroyed events")]8        public async Task ShouldFireTargetcreatedTargetchangedAndTargetdestroyedEvents()9        {10            var targets = new List<Target>();11            var createdTarget = new TaskCompletionSource<Target>();12            var changedTarget = new TaskCompletionSource<Target>();13            var destroyedTarget = new TaskCompletionSource<Target>();14            Page.TargetCreated += (sender, e) =>15            {16                targets.Add(e.Target);17                createdTarget.TrySetResult(e.Target);18            };19            Page.TargetChanged += (sender, e) =>20            {21                targets.Add(e.Target);22                changedTarget.TrySetResult(e.Target);23            };24            Page.TargetDestroyed += (sender, e) =>25            {26                targets.Add(e.Target);27                destroyedTarget.TrySetResult(e.Target);28            };29            await Task.WhenAll(30            );31            Assert.Equal(3, targets.Count);32            Assert.Equal(TargetType.Page, targets[0].Type);33            Assert.Equal(TargetType.Page, targets[1].Type);34            Assert.Equal(TargetType.Page, targets[2].Type);35            Assert.Equal(Page.Target, targets[0]);36            Assert.Equal(Page.Target, targets[1]);37            Assert.Equal(Page.Target, targets[2]);38            Assert.Equal(Page.Target, createdTarget.Task.Result);39            Assert.Equal(Page.Target, changedTarget.Task.Result);40            Assert.Equal(Page.Target, destroyedTarget.Task.Result);41            var popupTarget = popupTargetTask.Result;42            Assert.Equal(TargetType.Page, popupTarget.Type);43            var popupClosedTask = popupTarget.WaitForCloseAsync();44            var popupPage = await popupTarget.PageAsync();45            await popupPage.CloseAsync();46            await popupClosedTask;47        }48    }49}

listener

Using AI Code Generation

1await Page.GoToAsync(TestConstants.ServerUrl + "/popup/window-open.html");2await Page.EvaluateFunctionAsync("url => window._popup = window.open(url)", TestConstants.ServerUrl + "/empty.html");3await Page.EvaluateFunctionAsync("() => window._popup.document.write('<h1>Yo</h1>')");4await Page.EvaluateFunctionAsync("() => window._popup.document.close()");5await Page.EvaluateFunctionAsync("() => window._popup.location.reload()");6var popupTarget = await TargetCreatedTask;7var popupPage = await popupTarget.PageAsync();8Console.WriteLine(await popupPage.EvaluateExpressionAsync<string>("document.querySelector('h1').innerText"));9await popupPage.CloseAsync();10await Page.GoToAsync(TestConstants.ServerUrl + "/popup/window-open.html");11await Page.EvaluateFunctionAsync("url => window._popup = window.open(url)", TestConstants.ServerUrl + "/empty.html");12await Page.EvaluateFunctionAsync("() => window._popup.document.write('<h1>Yo</h1>')");13await Page.EvaluateFunctionAsync("() => window._popup.document.close()");14await Page.EvaluateFunctionAsync("() => window._popup.location.reload()");15var popupTarget = await TargetCreatedTask;16var popupPage = await popupTarget.PageAsync();17Console.WriteLine(await popupPage.EvaluateExpressionAsync<string>("document.querySelector('h1').innerText"));18await popupPage.CloseAsync();19await Page.GoToAsync(TestConstants.ServerUrl + "/popup/window-open.html");20await Page.EvaluateFunctionAsync("url => window._popup = window.open(url)", TestConstants.ServerUrl + "/empty.html");21await Page.EvaluateFunctionAsync("() => window._popup.document.write('<h1>Yo</h1>')");22await Page.EvaluateFunctionAsync("() => window._popup.document.close()");23await Page.EvaluateFunctionAsync("() => window._popup.location.reload()");24var popupTarget = await TargetCreatedTask;25var popupPage = await popupTarget.PageAsync();26Console.WriteLine(await popupPage.EvaluateExpressionAsync<string>("document.querySelector('h1').innerText"));27await popupPage.CloseAsync();28await Page.GoToAsync(TestConstants.ServerUrl + "/popup/window-open.html");

listener

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Tests;5using Xunit;6using Xunit.Abstractions;7{8    {9        public TargetTests(ITestOutputHelper output) : base(output)10        {11        }12        public async Task TargetTests()13        {14            var newPage = await Target.CreateTargetAsync(Page.Browser, "about:blank");15            var newTarget = newPage.Target;16            var newPage2 = await Target.CreateTargetAsync(Page.Browser, "about:blank");17            var newTarget2 = newPage2.Target;18            var newPage3 = await Target.CreateTargetAsync(Page.Browser, "about:blank");19            var newTarget3 = newPage3.Target;20            var newPage4 = await Target.CreateTargetAsync(Page.Browser, "about:blank");21            var newTarget4 = newPage4.Target;22            var newPage5 = await Target.CreateTargetAsync(Page.Browser, "about:blank");23            var newTarget5 = newPage5.Target;24            var newPage6 = await Target.CreateTargetAsync(Page.Browser, "about:blank");25            var newTarget6 = newPage6.Target;26            var newPage7 = await Target.CreateTargetAsync(Page.Browser, "about:blank");27            var newTarget7 = newPage7.Target;28            var newPage8 = await Target.CreateTargetAsync(Page.Browser, "about:blank");29            var newTarget8 = newPage8.Target;30            var newPage9 = await Target.CreateTargetAsync(Page.Browser, "about:blank");31            var newTarget9 = newPage9.Target;32            var newPage10 = await Target.CreateTargetAsync(Page.Browser, "about:blank");33            var newTarget10 = newPage10.Target;34            var newPage11 = await Target.CreateTargetAsync(Page.Browser, "about:blank");35            var newTarget11 = newPage11.Target;36            var newPage12 = await Target.CreateTargetAsync(Page.Browser, "about:blank");37            var newTarget12 = newPage12.Target;38            var newPage13 = await Target.CreateTargetAsync(Page.Browser, "about:blank");39            var newTarget13 = newPage13.Target;40            var newPage14 = await Target.CreateTargetAsync(Page

listener

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--remote-debugging-port=9222" }4});5var page = await browser.NewPageAsync();6await page.ScreenshotAsync("google.png");7await browser.CloseAsync();8var browser = await Puppeteer.LaunchAsync(new LaunchOptions9{10    Args = new string[] { "--remote-debugging-port=9222" }11});12var page = await browser.NewPageAsync();13await page.ScreenshotAsync("google.png");14await browser.CloseAsync();15var browser = await Puppeteer.LaunchAsync(new LaunchOptions16{17    Args = new string[] { "--remote-debugging-port=9222" }18});19var page = await browser.NewPageAsync();20await page.ScreenshotAsync("google.png");21await browser.CloseAsync();

listener

Using AI Code Generation

1var target = await Browser.WaitForTargetAsync(new WaitForTargetOptions2{3});4var targetPage = await target.PageAsync();5var target2 = await Browser.WaitForTargetAsync(new WaitForTargetOptions6{7});8var targetPage2 = await target2.PageAsync();9var target3 = await Browser.WaitForTargetAsync(new WaitForTargetOptions10{11});12var targetPage3 = await target3.PageAsync();13var target4 = await Browser.WaitForTargetAsync(new WaitForTargetOptions14{15});16var targetPage4 = await target4.PageAsync();17var target5 = await Browser.WaitForTargetAsync(new WaitForTargetOptions18{19});20var targetPage5 = await target5.PageAsync();21var target6 = await Browser.WaitForTargetAsync(new WaitForTargetOptions22{23});24var targetPage6 = await target6.PageAsync();25var target7 = await Browser.WaitForTargetAsync(new WaitForTargetOptions26{27});28var targetPage7 = await target7.PageAsync();29var target8 = await Browser.WaitForTargetAsync(new WaitForTargetOptions30{

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