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How to use ShouldThrowANiceErrorAfterANavigation method of Microsoft.Playwright.Tests.PageEvaluateTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageEvaluateTests.ShouldThrowANiceErrorAfterANavigation

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...386            }");387            Assert.True(result);388        }389        [PlaywrightTest("page-evaluate.spec.ts", "should throw a nice error after a navigation")]390        public async Task ShouldThrowANiceErrorAfterANavigation()391        {392            var evaluateTask = Page.EvaluateAsync("() => new Promise(f => window.__resolve = f)");393            await TaskUtils.WhenAll(394                Page.WaitForNavigationAsync(),395                Page.EvaluateAsync(@"() => {396                    window.location.reload();397                    setTimeout(() => window.__resolve(42), 1000);398                }")399            );400            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => evaluateTask);401            StringAssert.Contains("navigation", exception.Message);402        }403        [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a navigation")]404        public async Task ShouldNotThrowAnErrorWhenEvaluationDoesANavigation()...

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using NUnit.Framework;2using System.Threading.Tasks;3{4    [Parallelizable(ParallelScope.Self)]5    {6        [PlaywrightTest("page-evaluate.spec.ts", "should throw a nice error after a navigation")]7        [Test, Timeout(TestConstants.DefaultTestTimeout)]8        public async Task ShouldThrowANiceErrorAfterANavigation()9        {10            await Page.GoToAsync(TestConstants.EmptyPage);11            await Page.EvaluateAsync(@"() => {12                setTimeout(() => window.location.href = '/one-style.html', 0);13                return new Promise(f => requestAnimationFrame(() => requestAnimationFrame(f)));14            }");15            var error = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("() => window.__FOO"));16            StringAssert.Contains("navigation", error.Message);17        }18    }19}20{21    using System;22    using System.Collections.Generic;23    using System.Diagnostics;24    using System.IO;25    using System.Linq;26    using System.Reflection;27    using System.Runtime.CompilerServices;28    using System.Text.Json;29    using System.Threading;30    using System.Threading.Tasks;31    using Microsoft.Playwright.NUnit;32    using Microsoft.Playwright.Transport;33    using Microsoft.Playwright.Transport.Channels;34    using NUnit.Framework;35    using NUnit.Framework.Interfaces;36    using NUnit.Framework.Internal;37    using NUnit.Framework.Internal.Builders;38    using NUnit.Framework.Internal.Commands;39    using NUnit.Framework.Internal.Execution;40    [AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]41    {42        private readonly string _path;43        private readonly string _testName;44        public PlaywrightTestAttribute(string path, string testName)45        {46            _path = path;47            _testName = testName;48        }49        public TestCommand Wrap(TestCommand command)50        {51            return new PlaywrightTestCommand(command, _path, _testName);52        }53        public Test SetUpTest(Test test)54        {55            return test;56        }57        public Test TearDownTest(Test test)58        {59            return test;60        }61        {62            private readonly string _path;63            private readonly string _testName;64            public PlaywrightTestCommand(TestCommand innerCommand, string path,

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Xunit;6using Xunit.Abstractions;7{8    {9        internal PageEvaluateTests(ITestOutputHelper output) : base(output)10        {11        }12        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]13        public async Task ShouldThrowANiceErrorAfterANavigation()14        {15            var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(()16                => Page.EvaluateAsync<int>("() => window.__FOO = 10"));17            Assert.Contains("navigation", exception.Message);18        }19    }20}21using System;22using System.Collections.Generic;23using System.Text;24using System.Threading.Tasks;25using Xunit;26using Xunit.Abstractions;27{28    {29        internal PageEvaluateTests(ITestOutputHelper output) : base(output)30        {31        }32        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]33        public async Task ShouldThrowAnErrorWhenEvaluationTriggersReload()34        {35            var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(()36                => Page.EvaluateAsync<int>("() => location.reload()"));37            Assert.Contains("navigation", exception.Message);38        }39    }40}41using System;

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PageEvaluateTests test = new PageEvaluateTests();3await test.ShouldThrowANiceErrorAfterANavigation();4using Microsoft.Playwright.Tests;5PageEvaluateTests test = new PageEvaluateTests();6await test.ShouldThrowANiceErrorAfterANavigation();7using Microsoft.Playwright.Tests;8PageEvaluateTests test = new PageEvaluateTests();9await test.ShouldThrowANiceErrorAfterANavigation();10using Microsoft.Playwright.Tests;11PageEvaluateTests test = new PageEvaluateTests();12await test.ShouldThrowANiceErrorAfterANavigation();13using Microsoft.Playwright.Tests;14PageEvaluateTests test = new PageEvaluateTests();15await test.ShouldThrowANiceErrorAfterANavigation();16using Microsoft.Playwright.Tests;17PageEvaluateTests test = new PageEvaluateTests();18await test.ShouldThrowANiceErrorAfterANavigation();19using Microsoft.Playwright.Tests;20PageEvaluateTests test = new PageEvaluateTests();21await test.ShouldThrowANiceErrorAfterANavigation();22using Microsoft.Playwright.Tests;23PageEvaluateTests test = new PageEvaluateTests();24await test.ShouldThrowANiceErrorAfterANavigation();25using Microsoft.Playwright.Tests;26PageEvaluateTests test = new PageEvaluateTests();27await test.ShouldThrowANiceErrorAfterANavigation();

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using System;2using Microsoft.Playwright;3using Microsoft.Playwright.Core;4using Microsoft.Playwright.Helpers;5using Microsoft.Playwright.Transport;6using Microsoft.Playwright.Transport.Channels;7using Microsoft.Playwright.Transport.Protocol;8using System.Collections.Generic;9using System.Linq;10using System.Text;11using System.Threading.Tasks;12using System.Threading;13using System.Runtime.CompilerServices;14using System.Diagnostics;15using System.IO;16using System.Net.Http;17using System.Net.Http.Headers;18using System.Net;19using System.Text.Json;20using System.Text.Json.Serialization;21using System.Text.RegularExpressions;22using System.Reflection;23using System.Runtime.InteropServices;24{25    {26        public async Task ShouldThrowANiceErrorAfterANavigation()27        {28            var page = await Page.GotoAsync(TestConstants.ServerUrl + "/one-style.html");29            var styleHandle = await page.QuerySelectorAsync("style");30            await page.EvalOnSelectorAsync("style", "style => style.innerHTML = 'body { background-color: green; }'");31            var exception = await Assert.ThrowsAsync<PlaywrightException>(() => page.EvaluateAsync("() => document.body.style.backgroundColor"));32            StringAssert.Contains("Evaluation failed: document.body is not available", exception.Message);33        }34    }35}36using System;37using Microsoft.Playwright;38using Microsoft.Playwright.Core;39using Microsoft.Playwright.Helpers;40using Microsoft.Playwright.Transport;41using Microsoft.Playwright.Transport.Channels;42using Microsoft.Playwright.Transport.Protocol;43using System.Collections.Generic;44using System.Linq;45using System.Text;46using System.Threading.Tasks;47using System.Threading;48using System.Runtime.CompilerServices;49using System.Diagnostics;50using System.IO;51using System.Net.Http;52using System.Net.Http.Headers;53using System.Net;54using System.Text.Json;55using System.Text.Json.Serialization;56using System.Text.RegularExpressions;57using System.Reflection;58using System.Runtime.InteropServices;59{60    {61        public async Task ShouldThrowANiceErrorAfterANavigation()62        {63            var page = await Page.GotoAsync(TestConstants.ServerUrl + "/one-style.html");64            var styleHandle = await page.QuerySelectorAsync("style");

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using NUnit.Framework;3using System.Threading.Tasks;4using Microsoft.Playwright.Tests.TestServer;5{6    [Parallelizable(ParallelScope.Self)]7    {8        internal async Task ShouldThrowANiceErrorAfterANavigation()9        {10            await Page.GoToAsync(TestConstants.EmptyPage);11            var (popupTask, _) = Page.WaitForPopupAsync();12            await Page.EvaluateAsync("url => window.__popup = window.open(url)", TestConstants.EmptyPage);13            var popup = await popupTask;14            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightSharpException>(() => Page.EvaluateAsync("() => new Promise(r => {})"));15            StringAssert.Contains("navigation", exception.Message);16        }17    }18}

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Tests;8using NUnit.Framework;9using NUnit.Framework.Interfaces;10using NUnit.Framework.Internal;11using NUnit.Framework.Internal.Commands;12using NUnit.Framework.Internal.Execution;13using NUnit.Framework.Internal.Filters;14using NUnit.Framework.Internal.WorkItems;15{16    {17        public async Task ShouldThrowANiceErrorAfterANavigation()18        {19            await Page.GoToAsync(TestConstants.EmptyPage);20            var mainFrame = Page.MainFrame;21            var navigationTask = Page.GoToAsync(TestConstants.ServerUrl + "/one-style.html");22            var error = await AssertThrowsAsync<PlaywrightException>(async () => await mainFrame.EvaluateAsync("() => window.__FOO = 1"));23            StringAssert.Contains("navigation", error.Message);24        }25    }26}

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1await page.EvaluateAsync(@"() => {2    document.body.appendChild(document.createTextNode('This will not be added to the document'));3}");4await page.EvaluateAsync(@"() => {5    document.body.appendChild(document.createTextNode('This will not be added to the document'));6}");7await page.EvaluateAsync(@"() => {8    document.body.appendChild(document.createTextNode('This will not be added to the document'));9}");10await page.EvaluateAsync(@"() => {11    document.body.appendChild(document.createTextNode('This will not be added to the document'));12}");

ShouldThrowANiceErrorAfterANavigation

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Linq;5    using System.Text;6    using System.Threading.Tasks;7    using Microsoft.Playwright;8    using Microsoft.Playwright.NUnit;9    using NUnit.Framework;10    [Parallelizable(ParallelScope.Self)]11    {12        [PlaywrightTest("page-evaluate.spec.ts", "should throw a nice error after a navigation")]13        [Test, Timeout(TestConstants.DefaultTestTimeout)]14        public async Task ShouldThrowANiceErrorAfterANavigation()15        {16            await Page.GoToAsync(TestConstants.EmptyPage);17            await Page.EvaluateAsync("() => new Promise(requestAnimationFrame)");18            await Page.GoToAsync(TestConstants.EmptyPage);19            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("() => new Promise(requestAnimationFrame)"));20            StringAssert.Contains("navigation", exception.Message);21        }22    }23}24{25    using System;26    using System.Collections.Generic;27    using System.Linq;28    using System.Text;29    using System.Threading.Tasks;30    using Microsoft.Playwright;31    using Microsoft.Playwright.NUnit;32    using NUnit.Framework;33    [Parallelizable(ParallelScope.Self)]34    {35        [PlaywrightTest("page-evaluate.spec.ts", "should throw a nice error after a navigation")]36        [Test, Timeout(TestConstants.DefaultTestTimeout)]37        public async Task ShouldThrowANiceErrorAfterANavigation()38        {39            await Page.GoToAsync(TestConstants.EmptyPage);40            await Page.EvaluateAsync("() => new Promise(requestAnimationFrame)");41            await Page.GoToAsync(TestConstants.EmptyPage);

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.

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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.
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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.
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