How to use PageEventsPageErrorTests class of PuppeteerSharp.Tests.PageTests package

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.PageTests.PageEventsPageErrorTests

PageEventsPageErrorTests.cs

Source: PageEventsPageErrorTests.cs Github

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...5using Xunit.Abstractions;6namespace PuppeteerSharp.Tests.PageTests7{8 [Collection(TestConstants.TestFixtureCollectionName)]9 public class PageEventsPageErrorTests : PuppeteerPageBaseTest10 {11 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)12 {13 }14 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should fire")]15 [SkipBrowserFact(skipFirefox: true)]16 public async Task ShouldFire()17 {18 string error = null;19 void EventHandler(object sender, PageErrorEventArgs e)20 {21 error = e.Message;22 Page.PageError -= EventHandler;23 }24 Page.PageError += EventHandler;25 await Task.WhenAll(...

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PageEventsPageErrorTests

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp.Tests.Attributes;4using PuppeteerSharp.Xunit;5using Xunit;6using Xunit.Abstractions;7{8 [Collection(TestConstants.TestFixtureCollectionName)]9 {10 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)11 {12 }13 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should throw if exception was not handled")]14 public async Task ShouldThrowIfExceptionWasNotHandled()15 {16 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateFunctionAsync("() => not.existing.object.property"));17 Assert.Contains("not.existing.object is not defined", exception.Message);18 }19 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should not throw if exception was handled")]20 public async Task ShouldNotThrowIfExceptionWasHandled()21 {22 Page.OnPageError += (sender, e) => { };23 var exception = await Record.ExceptionAsync(() => Page.EvaluateFunctionAsync("() => not.existing.object.property"));24 Assert.Null(exception);25 }26 }27}28using System;29using System.Threading.Tasks;30using PuppeteerSharp.Tests.Attributes;31using PuppeteerSharp.Xunit;32using Xunit;33using Xunit.Abstractions;34{35 [Collection(TestConstants.TestFixtureCollectionName)]36 {37 public PageEventsPopupTests(ITestOutputHelper output) : base(output)38 {39 }40 [PuppeteerTest("page.spec.ts", "Page.Events.Popup", "should fire")]41 public async Task ShouldFire()42 {43 var popupTaskCompletionSource = new TaskCompletionSource<Page>();44 Page.Popup += (sender, e) => popupTaskCompletionSource.TrySetResult(e.Page);45 await Task.WhenAll(46 Page.EvaluateFunctionAsync("url => window._popup = window.open(url)", TestConstants.EmptyPage)47 );48 var popup = popupTaskCompletionSource.Task.Result;

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PageEventsPageErrorTests

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1using PuppeteerSharp.Tests.PageTests;2using Xunit;3using Xunit.Abstractions;4using System;5using System.Threading.Tasks;6{7{8 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)9 {10 }11 public async Task ShouldFire()12 {13 Page.PageError += (sender, e) => Console.WriteLine(e.Message);14 await Page.GoToAsync(TestConstants.ServerUrl + "/​error.html");15 Assert.Contains("Fancy error!", await Page.EvaluateExpressionAsync<string>("window['error']"));16 }17}18}19using PuppeteerSharp.Tests.PageTests;20using Xunit;21using Xunit.Abstractions;22using System;23using System.Threading.Tasks;24{25{26 public PageEventsPopupTests(ITestOutputHelper output) : base(output)27 {28 }29 public async Task ShouldFire()30 {31 var popupTask = Page.WaitForPopupAsync();32 await Task.WhenAll(33 Page.EvaluateFunctionAsync("url => window.open(url)", TestConstants.EmptyPage)34 );35 var popup = await popupTask;36 Assert.Equal(TestConstants.EmptyPage, popup.Url);37 }38}39}40using PuppeteerSharp.Tests.PageTests;41using Xunit;42using Xunit.Abstractions;43using System;44using System.Threading.Tasks;45{46{47 public PageEventsRequestTests(ITestOutputHelper output) : base(output)48 {49 }50 public async Task ShouldFire()51 {52 Page.Request += (sender, e) => Console.WriteLine(e.Request.Url);53 await Page.GoToAsync(TestConstants.EmptyPage);54 Assert.Empty(Page.Requests);55 }56}57}58using PuppeteerSharp.Tests.PageTests;59using Xunit;60using Xunit.Abstractions;61using System;62using System.Threading.Tasks;

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PageEventsPageErrorTests

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1using PuppeteerSharp.Tests.PageTests;2var test = new PageEventsPageErrorTests();3await test.PageEventsErrorAsync();4using PuppeteerSharp.Tests.PageTests;5var test = new PageEventsPageErrorTests();6await test.PageEventsPageErrorAsync();7using PuppeteerSharp.Tests.PageTests;8var test = new PageEventsPopupTests();9await test.PageEventsPopupAsync();10using PuppeteerSharp.Tests.PageTests;11var test = new PageEventsRequestTests();12await test.PageEventsRequestAsync();13using PuppeteerSharp.Tests.PageTests;14var test = new PageEventsRequestFailedTests();15await test.PageEventsRequestFailedAsync();16using PuppeteerSharp.Tests.PageTests;17var test = new PageEventsRequestFinishedTests();18await test.PageEventsRequestFinishedAsync();19using PuppeteerSharp.Tests.PageTests;20var test = new PageEventsResponseTests();21await test.PageEventsResponseAsync();22using PuppeteerSharp.Tests.PageTests;23var test = new PageEventsWorkerTests();24await test.PageEventsWorkerAsync();25using PuppeteerSharp.Tests.PageTests;26var test = new PageExposeBindingTests();27await test.PageExposeBindingAsync();28using PuppeteerSharp.Tests.PageTests;29var test = new PageExposeBindingHandleTests();30await test.PageExposeBindingHandleAsync();

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PageEventsPageErrorTests

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1using PuppeteerSharp.Tests.PageTests;2using System;3using System.Threading.Tasks;4using PuppeteerSharp;5using PuppeteerSharp.Tests.Attributes;6using Xunit;7using Xunit.Abstractions;8{9 [Collection("PuppeteerLoaderFixture collection")]10 {11 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)12 {13 }14 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should throw when page crashes")]15 [SkipBrowserFact(skipFirefox: true)]16 public async Task ShouldThrowWhenPageCrashes()17 {18 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));19 Assert.Contains("Page crashed!", exception.Message);20 }21 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should throw when page crashes")]22 [SkipBrowserFact(skipFirefox: true)]23 public async Task ShouldThrowWhenPageCrashes2()24 {25 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));26 Assert.Contains("Page crashed!", exception.Message);27 }28 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should throw when page crashes")]29 [SkipBrowserFact(skipFirefox: true)]30 public async Task ShouldThrowWhenPageCrashes3()31 {32 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));33 Assert.Contains("Page crashed!", exception.Message);34 }35 [PuppeteerTest("page.spec.ts", "Page.Events.PageError", "should throw when page crashes")]36 [SkipBrowserFact(skipFirefox: true)]37 public async Task ShouldThrowWhenPageCrashes4()38 {39 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));40 Assert.Contains("Page crashed!",

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PageEventsPageErrorTests

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1using PuppeteerSharp.Tests.PageTests;2using Xunit;3using Xunit.Abstractions;4using System;5using System.Threading.Tasks;6using System.Collections.Generic;7using System.Linq;8using System.Text;9using System.Threading;10using PuppeteerSharp.Input;11{12 [Collection("PuppeteerLoaderFixture collection")]13 {14 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)15 {16 }

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PageEventsPageErrorTests

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp.Tests.Attributes;4using Xunit;5using Xunit.Abstractions;6{7 [Collection(TestConstants.TestFixtureCollectionName)]8 {9 public PageEventsPageErrorTests(ITestOutputHelper output) : base(output)10 {11 }12 [PuppeteerTest("page.spec.ts", "Page.Events.Pageerror", "should throw if page crashes")]13 public async Task ShouldThrowIfPageCrashes()14 {15 Page.PageError += (sender, e) => throw new Exception("Page crashed!");16 var exception = await Assert.ThrowsAsync<Exception>(async () => await Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));17 Assert.Equal("Page crashed!", exception.Message);18 }19 [PuppeteerTest("page.spec.ts", "Page.Events.Pageerror", "should throw if page crashes")]20 public async Task ShouldThrowIfPageCrashes2()21 {22 Page.PageError += (sender, e) => throw new Exception("Page crashed!");23 var exception = await Assert.ThrowsAsync<Exception>(async () => await Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));24 Assert.Equal("Page crashed!", exception.Message);25 }26 [PuppeteerTest("page.spec.ts", "Page.Events.Pageerror", "should throw if page crashes")]27 public async Task ShouldThrowIfPageCrashes3()28 {29 Page.PageError += (sender, e) => throw new Exception("Page crashed!");30 var exception = await Assert.ThrowsAsync<Exception>(async () => await Page.EvaluateFunctionAsync("() => { setTimeout(() => { throw new Error('Page crashed!'); }, 0); }"));31 Assert.Equal("Page crashed!", exception.Message);32 }33 [PuppeteerTest("page.spec.ts", "Page.Events.Pageerror", "should throw if page crashes")]

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StackOverFlow community discussions

Questions
Discussion

Is there a remove page method corresponding to NewPageAsync() in PuppeteerSharp?

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Puppeteer Sharp strange behaviour

You can close the page using CloseAsync:

var page = browser.NewPageAsync();
////
await page.CloseAsync();

An using block will also close the page:

using (var page = await new browser.PageAsync())
{
///
}

Puppeteer-Sharp v2.0.3+ also supports await using blocks

await using (var page = await new browser.PageAsync())
{
 ///
}
https://stackoverflow.com/questions/61517099/is-there-a-remove-page-method-corresponding-to-newpageasync-in-puppeteersharp

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