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

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

TargetTests.cs

Source:TargetTests.cs

...100        public async Task ShouldReportWhenATargetUrlChanges()101        {102            await Page.GoToAsync(TestConstants.EmptyPage);103            var changedTargetTaskCompletion = new TaskCompletionSource<Target>();104            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)105            {106                changedTargetTaskCompletion.SetResult(e.Target);107                Browser.TargetChanged -= ChangedTargetEventHandler;108            }109            Browser.TargetChanged += ChangedTargetEventHandler;110            await Page.GoToAsync(TestConstants.CrossProcessUrl + "/");111            var changedTarget = await changedTargetTaskCompletion.Task;112            Assert.Equal(TestConstants.CrossProcessUrl + "/", changedTarget.Url);113            changedTargetTaskCompletion = new TaskCompletionSource<Target>();114            Browser.TargetChanged += ChangedTargetEventHandler;115            await Page.GoToAsync(TestConstants.EmptyPage);116            changedTarget = await changedTargetTaskCompletion.Task;117            Assert.Equal(TestConstants.EmptyPage, changedTarget.Url);118        }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);...

ChangedTargetEventHandler

Using AI Code Generation

1{2    using System;3    using System.Threading.Tasks;4    using Xunit;5    using Xunit.Abstractions;6    [Collection("PuppeteerLoaderFixture collection")]7    {8        public TargetTests(ITestOutputHelper output) : base(output)9        {10        }11        public async Task ShouldFireEventsInProperOrder()12        {13            var events = new System.Collections.Generic.List<string>();14            Page.Target.TargetCreated += (sender, e) => events.Add("CREATED");15            Page.Target.TargetChanged += (sender, e) => events.Add("CHANGED");16            Page.Target.TargetDestroyed += (sender, e) => events.Add("DESTROYED");17            await Page.GoToAsync(TestConstants.EmptyPage);18            Assert.Equal(new[] { "CREATED", "CHANGED" }, events);19        }20        public async Task ShouldReportAllTargetsFromBrowserContextWhenBrowserIsLaunched()21        {22            using (var browser = await Puppeteer.LaunchAsync(TestConstants.DefaultBrowserOptions()))23            {24                var context = await browser.CreateIncognitoBrowserContextAsync();25                var page = await context.NewPageAsync();26                Assert.Equal(2, browser.Targets.Length);27                Assert.Equal(2, context.Targets.Length);28                Assert.Equal(page.Target, context.Targets[0]);29                Assert.Equal(browser.Targets[1], context.Targets[1]);30            }31        }32        public async Task ShouldReportAllTargetsFromBrowserContextWhenBrowserIsConnected()33        {34            using (var browserServer = await Puppeteer.LaunchServerAsync(TestConstants.DefaultBrowserOptions()))35            {36                using (var browser = await Puppeteer.ConnectAsync(new ConnectOptions { BrowserWSEndpoint = browserServer.WebSocketEndpoint }))37                {38                    var context = await browser.CreateIncognitoBrowserContextAsync();39                    var page = await context.NewPageAsync();40                    Assert.Equal(2, browser.Targets.Length);41                    Assert.Equal(2, context.Targets.Length);42                    Assert.Equal(page.Target, context.Targets[0]);43                    Assert.Equal(browser.Targets[1], context.Targets[1]);44                }45            }46        }47        public async Task ShouldReportAllTargetsFromBrowserContextWhenIncognitoBrowserContextIsCreated()48        {49            using (var browser = await Puppeteer.LaunchAsync(TestConstants.DefaultBrowserOptions()))

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using PuppeteerSharp;6using Xunit;7using Xunit.Abstractions;8{9    [Collection("PuppeteerLoaderFixture collection")]10    {11        public TargetTests(ITestOutputHelper output) : base(output)12        {13        }14        public async Task TargetTestsChangedTargetEventHandler()15        {16            await Page.GoToAsync(TestConstants.EmptyPage);17            var otherPage = await Context.NewPageAsync();18            Assert.Equal(2, Context.Pages.Length);19            var otherPageTarget = otherPage.Target;20            var newPageTarget = default(Target);21            void TargetChangedEventHandler(object sender, TargetChangedArgs e)22            {23                if (e.Target == otherPageTarget)24                {25                    newPageTarget = e.Target;26                }27            }28            Context.TargetChanged += TargetChangedEventHandler;29            await otherPage.CloseAsync();30            Assert.Equal(1, Context.Pages.Length);31            Assert.Equal(newPageTarget, otherPageTarget);32            Context.TargetChanged -= TargetChangedEventHandler;33        }34    }35}

ChangedTargetEventHandler

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            var browser = Puppeteer.LaunchAsync(new LaunchOptions12            {13                Args = new string[] { "--no-sandbox" }14            }).Result;15            var page = browser.NewPageAsync().Result;16            page.Target.ChangedTargetEventHandler += Target_ChangedTargetEventHandler;17            Console.WriteLine("Press any key to exit");18            Console.ReadKey();19        }20        private static void Target_ChangedTargetEventHandler(object sender, TargetChangedArgs e)21        {22            Console.WriteLine("Target Changed");23        }24    }25}26using PuppeteerSharp;27using System;28using System.Collections.Generic;29using System.Linq;30using System.Text;31using System.Threading.Tasks;32{33    {34        static void Main(string[] args)35        {36            var browser = Puppeteer.LaunchAsync(new LaunchOptions37            {38                Args = new string[] { "--no-sandbox" }39            }).Result;40            var page = browser.NewPageAsync().Result;41            page.Target.ChangedTargetEventHandler += Target_ChangedTargetEventHandler;42            Console.WriteLine("Press any key to exit");43            Console.ReadKey();44        }45        private static void Target_ChangedTargetEventHandler(object sender, TargetChangedArgs e)46        {47            Console.WriteLine("Target Changed");48        }49    }50}51using PuppeteerSharp;52using System;53using System.Collections.Generic;54using System.Linq;55using System.Text;56using System.Threading.Tasks;57{58    {59        static void Main(string[] args)60        {61            var browser = Puppeteer.LaunchAsync(new LaunchOptions62            {63                Args = new string[] { "--no-sandbox" }64            }).Result;

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp.Tests.Attributes;4using Xunit;5using Xunit.Abstractions;6{7    [Collection(TestConstants.TestFixtureCollectionName)]8    {9        public TargetTests(ITestOutputHelper output) : base(output)10        {11        }12        [PuppeteerTest("target.spec.ts", "TargetTests", "should fire targetchanged event")]13        public async Task ShouldFireTargetChangedEvent()14        {15            var targetChangedTask = Page.WaitForTargetChangedAsync();16            await Task.WhenAll(17                Page.EvaluateFunctionAsync(@"() => {18                    const iframe = document.createElement('iframe');19                    document.body.appendChild(iframe);20                    return new Promise(x => iframe.onload = x);21                }")22            );23            var target = targetChangedTask.Result;24            Assert.Equal(TargetType.Frame, target.Type);25            Assert.NotNull(target.Page);26        }27    }28}29using System;30using System.Threading.Tasks;31using PuppeteerSharp.Tests.Attributes;32using Xunit;33using Xunit.Abstractions;34{35    [Collection(TestConstants.TestFixtureCollectionName)]36    {37        public TargetTests(ITestOutputHelper output) : base(output)38        {39        }40        [PuppeteerTest("target.spec.ts", "TargetTests", "should fire targetchanged event")]41        public async Task ShouldFireTargetChangedEvent()42        {43            var targetChangedTask = Page.WaitForTargetChangedAsync();44            await Task.WhenAll(45                Page.EvaluateFunctionAsync(@"() => {46                    const iframe = document.createElement('iframe');47                    document.body.appendChild(iframe);48                    return new Promise(x => iframe.onload = x);49                }")50            );51            var target = targetChangedTask.Result;52            Assert.Equal(TargetType.Frame, target.Type);53            Assert.NotNull(target.Page);54        }55    }56}57using System;58using System.Threading.Tasks;

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5{6    {7        public async Task ChangedTargetEventHandlerMethod()8        {9            var options = TestConstants.DefaultBrowserOptions();10            options.Headless = false;11            using (var browser = await Puppeteer.LaunchAsync(options))12            using (var page = await browser.NewPageAsync())13            {14                var target = await browser.WaitForTargetAsync(async () =>15                {16                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.EmptyPage);17                });18                var newTarget = await browser.WaitForTargetAsync(async () =>19                {20                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");21                });22                var newTarget2 = await browser.WaitForTargetAsync(async () =>23                {24                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");25                });26                var newTarget3 = await browser.WaitForTargetAsync(async () =>27                {28                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");29                });30                var newTarget4 = await browser.WaitForTargetAsync(async () =>31                {32                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");33                });34                var newTarget5 = await browser.WaitForTargetAsync(async () =>35                {36                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");37                });38                var newTarget6 = await browser.WaitForTargetAsync(async () =>39                {40                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");41                });42                var newTarget7 = await browser.WaitForTargetAsync(async () =>43                {44                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");45                });46                var newTarget8 = await browser.WaitForTargetAsync(async () =>47                {48                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");49                });50                var newTarget9 = await browser.WaitForTargetAsync(async () =>51                {

ChangedTargetEventHandler

Using AI Code Generation

1using PuppeteerSharp.Tests;2using System;3using System.Collections.Generic;4using System.Text;5using System.Threading.Tasks;6using Xunit;7using Xunit.Abstractions;8{9    [Collection(TestConstants.TestFixtureCollectionName)]10    {11        public TargetTests(ITestOutputHelper output) : base(output)12        {13        }14        public async Task TargetTests_ChangedTargetEventHandler()15        {16            var newPageTask = TargetChangedTask(Page.Target.CreateCDPSessionAsync);17            var newPage = await newPageTask;18            Assert.NotNull(newPage);19            Assert.NotEqual(Page, newPage);20        }21        private async Task<Page> TargetChangedTask(Func<Task<CDPSession>> task)22        {23            Page newPage = null;24            Browser.TargetChanged += (sender, e) =>25            {26                if (e.Target.Type == TargetType.Page)27                {28                    newPage = e.Target.Page;29                }30            };31            await task();32            return newPage;33        }34    }35}36using PuppeteerSharp.Tests;37using System;38using System.Collections.Generic;39using System.Text;40using System.Threading.Tasks;41using Xunit;42using Xunit.Abstractions;43{44    [Collection(TestConstants.TestFixtureCollectionName)]45    {46        public TargetTests(ITestOutputHelper output) : base(output)47        {48        }49        public async Task TargetTests_ChangedTargetEventHandler()50        {51            var newPageTask = TargetChangedTask(Page.Target.CreateCDPSessionAsync);52            var newPage = await newPageTask;53            Assert.NotNull(newPage);54            Assert.NotEqual(Page, newPage);55        }56        private async Task<Page> TargetChangedTask(Func<Task<CDPSession>> task)57        {58            Page newPage = null;59            Browser.TargetChanged += (sender, e) =>60            {61                if (e.Target.Type == TargetType.Page)62                {63                    newPage = e.Target.Page;64                }65            };66            await task();67            return newPage;68        }69    }70}

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Xunit;4using Xunit.Abstractions;5{6    [Collection(TestConstants.TestFixtureCollectionName)]7    {8        public TargetTests(ITestOutputHelper output) : base(output)9        {10        }11        public async Task ShouldFireTargetChangedEvents()12        {13            var (targetChangedCalled, targetInfo) = await TargetChanged();14            Assert.NotNull(targetInfo);15            Assert.True(targetChangedCalled);16        }17        private async Task<(bool, TargetInfo)> TargetChanged()18        {19            var targetChangedCalled = false;20            TargetInfo targetInfo = null;21            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)22            {23                targetChangedCalled = true;24                targetInfo = e.TargetInfo;25            }26            Page.TargetChanged += ChangedTargetEventHandler;27            await Page.GoToAsync(TestConstants.EmptyPage);28            Page.TargetChanged -= ChangedTargetEventHandler;29            return (targetChangedCalled, targetInfo);30        }31    }32}33using System;34using System.Threading.Tasks;35using Xunit;36using Xunit.Abstractions;37{38    [Collection(TestConstants.TestFixtureCollectionName)]39    {40        public TargetTests(ITestOutputHelper output) : base(output)41        {42        }43        public async Task ShouldFireTargetCreatedEvents()44        {45            var (targetChangedCalled, targetInfo) = await TargetCreated();46            Assert.NotNull(targetInfo);47            Assert.True(targetChangedCalled);48        }49        private async Task<(bool, TargetInfo)> TargetCreated()50        {51            var targetChangedCalled = false;52            TargetInfo targetInfo = null;53            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)54            {55                targetChangedCalled = true;56                targetInfo = e.TargetInfo;57            }58            Page.TargetCreated += ChangedTargetEventHandler;59            await Page.GoToAsync(TestConstants.EmptyPage);60            Page.TargetCreated -= ChangedTargetEventHandler;61            return (targetChangedCalled, targetInfo);62        }63    }64}

ChangedTargetEventHandler

Using AI Code Generation

1await Task.WhenAll(2    Page.WaitForTargetAsync(x => x.Url == "about:blank"),3    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")4);5await Task.WhenAll(6    Page.WaitForTargetAsync(x => x.Url == "about:blank"),7    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")8);9await Task.WhenAll(10    Page.WaitForTargetAsync(x => x.Url == "about:blank"),11    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")12);13await Task.WhenAll(14    Page.WaitForTargetAsync(x => x.Url == "about:blank"),15    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")16);17await Task.WhenAll(18    Page.WaitForTargetAsync(x => x.Url == "about:blank"),19    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")20);21await Task.WhenAll(22    Page.WaitForTargetAsync(x => x.Url == "about:blank"),23    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")24);25await Task.WhenAll(26    Page.WaitForTargetAsync(x => x.Url == "about:blank"),27    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")28);29await Task.WhenAll(30    Page.WaitForTargetAsync(x => x.Url == "about:blank"),31    Page.EvaluateFunctionAsync("url => window.open(url)", "about:blank")32);

ChangedTargetEventHandler

Using AI Code Generation

1public class 4.cs {2    public static void Main(string[] args) {3        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;4    }5}6public class 5.cs {7    public static void Main(string[] args) {8        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;9    }10}11public class 6.cs {12    public static void Main(string[] args) {13        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;14    }15}16public class 7.cs {17    public static void Main(string[] args) {18        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;19    }20}21public class 8.cs {22    public static void Main(string[] args) {23        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;24    }25}26public class 9.cs {27    public static void Main(string[] args) {28        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;29    }30}31public class 10.cs {32    public static void Main(string[] args) {33        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;34    }35}36public class 11.cs {37    public static void Main(string[] args) {38        var changedTargetEventHandler = new PuppeteerSharp.Tests.TargetTests.TargetTests().ChangedTargetEventHandler;39    }40}41                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");42                });43                var newTarget6 = await browser.WaitForTargetAsync(async () =>44                {45                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");46                });47                var newTarget7 = await browser.WaitForTargetAsync(async () =>48                {49                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");50                });51                var newTarget8 = await browser.WaitForTargetAsync(async () =>52                {53                    await page.EvaluateFunctionHandleAsync("url => window.open(url)", TestConstants.ServerUrl + "/popup/popup.html");54                });55                var newTarget9 = await browser.WaitForTargetAsync(async () =>56                {

ChangedTargetEventHandler

Using AI Code Generation

1using PuppeteerSharp.Tests;2using System;3using System.Collections.Generic;4using System.Text;5using System.Threading.Tasks;6using Xunit;7using Xunit.Abstractions;8{9    [Collection(TestConstants.TestFixtureCollectionName)]10    {11        public TargetTests(ITestOutputHelper output) : base(output)12        {13        }14        public async Task TargetTests_ChangedTargetEventHandler()15        {16            var newPageTask = TargetChangedTask(Page.Target.CreateCDPSessionAsync);17            var newPage = await newPageTask;18            Assert.NotNull(newPage);19            Assert.NotEqual(Page, newPage);20        }21        private async Task<Page> TargetChangedTask(Func<Task<CDPSession>> task)22        {23            Page newPage = null;24            Browser.TargetChanged += (sender, e) =>25            {26                if (e.Target.Type == TargetType.Page)27                {28                    newPage = e.Target.Page;29                }30            };31            await task();32            return newPage;33        }34    }35}36using PuppeteerSharp.Tests;37using System;38using System.Collections.Generic;39using System.Text;40using System.Threading.Tasks;41using Xunit;42using Xunit.Abstractions;43{44    [Collection(TestConstants.TestFixtureCollectionName)]45    {46        public TargetTests(ITestOutputHelper output) : base(output)47        {48        }49        public async Task TargetTests_ChangedTargetEventHandler()50        {51            var newPageTask = TargetChangedTask(Page.Target.CreateCDPSessionAsync);52            var newPage = await newPageTask;53            Assert.NotNull(newPage);54            Assert.NotEqual(Page, newPage);55        }56        private async Task<Page> TargetChangedTask(Func<Task<CDPSession>> task)57        {58            Page newPage = null;59            Browser.TargetChanged += (sender, e) =>60            {61                if (e.Target.Type == TargetType.Page)62                {63                    newPage = e.Target.Page;64                }65            };66            await task();67            return newPage;68        }69    }70}

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Xunit;4using Xunit.Abstractions;5{6    [Collection(TestConstants.TestFixtureCollectionName)]7    {8        public TargetTests(ITestOutputHelper output) : base(output)9        {10        }11        public async Task ShouldFireTargetChangedEvents()12        {13            var (targetChangedCalled, targetInfo) = await TargetChanged();14            Assert.NotNull(targetInfo);15            Assert.True(targetChangedCalled);16        }17        private async Task<(bool, TargetInfo)> TargetChanged()18        {19            var targetChangedCalled = false;20            TargetInfo targetInfo = null;21            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)22            {23                targetChangedCalled = true;24                targetInfo = e.TargetInfo;25            }26            Page.TargetChanged += ChangedTargetEventHandler;27            await Page.GoToAsync(TestConstants.EmptyPage);28            Page.TargetChanged -= ChangedTargetEventHandler;29            return (targetChangedCalled, targetInfo);30        }31    }32}33using System;34using System.Threading.Tasks;35using Xunit;36using Xunit.Abstractions;37{38    [Collection(TestConstants.TestFixtureCollectionName)]39    {40        public TargetTests(ITestOutputHelper output) : base(output)41        {42        }43        public async Task ShouldFireTargetCreatedEvents()44        {45            var (targetChangedCalled, targetInfo) = await TargetCreated();46            Assert.NotNull(targetInfo);47            Assert.True(targetChangedCalled);48        }49        private async Task<(bool, TargetInfo)> TargetCreated()50        {51            var targetChangedCalled = false;52            TargetInfo targetInfo = null;53            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)54            {55                targetChangedCalled = true;56                targetInfo = e.TargetInfo;57            }58            Page.TargetCreated += ChangedTargetEventHandler;59            await Page.GoToAsync(TestConstants.EmptyPage);60            Page.TargetCreated -= ChangedTargetEventHandler;61            return (targetChangedCalled, targetInfo);62        }63    }64}65            Page newPage = null;66            Browser.TargetChanged += (sender, e) =>67            {68                if (e.Target.Type == TargetType.Page)69                {70                    newPage = e.Target.Page;71                }72            };73            await task();74            return newPage;75        }76    }77}78using PuppeteerSharp.Tests;79using System;80using System.Collections.Generic;81using System.Text;82using System.Threading.Tasks;83using Xunit;84using Xunit.Abstractions;85{86    [Collection(TestConstants.TestFixtureCollectionName)]87    {88        public TargetTests(ITestOutputHelper output) : base(output)89        {90        }91        public async Task TargetTests_ChangedTargetEventHandler()92        {93            var newPageTask = TargetChangedTask(Page.Target.CreateCDPSessionAsync);94            var newPage = await newPageTask;95            Assert.NotNull(newPage);96            Assert.NotEqual(Page, newPage);97        }98        private async Task<Page> TargetChangedTask(Func<Task<CDPSession>> task)99        {100            Page newPage = null;101            Browser.TargetChanged += (sender, e) =>102            {103                if (e.Target.Type == TargetType.Page)104                {105                    newPage = e.Target.Page;106                }107            };108            await task();109            return newPage;110        }111    }112}

ChangedTargetEventHandler

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Xunit;4using Xunit.Abstractions;5{6    [Collection(TestConstants.TestFixtureCollectionName)]7    {8        public TargetTests(ITestOutputHelper output) : base(output)9        {10        }11        public async Task ShouldFireTargetChangedEvents()12        {13            var (targetChangedCalled, targetInfo) = await TargetChanged();14            Assert.NotNull(targetInfo);15            Assert.True(targetChangedCalled);16        }17        private async Task<(bool, TargetInfo)> TargetChanged()18        {19            var targetChangedCalled = false;20            TargetInfo targetInfo = null;21            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)22            {23                targetChangedCalled = true;24                targetInfo = e.TargetInfo;25            }26            Page.TargetChanged += ChangedTargetEventHandler;27            await Page.GoToAsync(TestConstants.EmptyPage);28            Page.TargetChanged -= ChangedTargetEventHandler;29            return (targetChangedCalled, targetInfo);30        }31    }32}33using System;34using System.Threading.Tasks;35using Xunit;36using Xunit.Abstractions;37{38    [Collection(TestConstants.TestFixtureCollectionName)]39    {40        public TargetTests(ITestOutputHelper output) : base(output)41        {42        }43        public async Task ShouldFireTargetCreatedEvents()44        {45            var (targetChangedCalled, targetInfo) = await TargetCreated();46            Assert.NotNull(targetInfo);47            Assert.True(targetChangedCalled);48        }49        private async Task<(bool, TargetInfo)> TargetCreated()50        {51            var targetChangedCalled = false;52            TargetInfo targetInfo = null;53            void ChangedTargetEventHandler(object sender, TargetChangedArgs e)54            {55                targetChangedCalled = true;56                targetInfo = e.TargetInfo;57            }58            Page.TargetCreated += ChangedTargetEventHandler;59            await Page.GoToAsync(TestConstants.EmptyPage);60            Page.TargetCreated -= ChangedTargetEventHandler;61            return (targetChangedCalled, targetInfo);62        }63    }64}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.