KaneAI - World’s First E2E Software Testing Agent.Book a Demo 
How to use ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject method of Microsoft.Playwright.Tests.Promise2 class
Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
PageEvaluateTests.cs
Source:PageEvaluateTests.cs 
...411 Assert.AreEqual(new[] { 42 }, result);412 }413 [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a synchronous navigation and returns an object")]414 [Skip(SkipAttribute.Targets.Webkit)]415 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()416 {417 var result = await Page.EvaluateAsync<JsonElement>(@"() => {418 window.location.reload();419 return {a: 42};420 }");421 Assert.AreEqual(42, result.GetProperty("a").GetInt32());422 }423 [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a synchronous navigation and returns an undefined")]424 [Skip(SkipAttribute.Targets.Webkit)]425 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsUndefined()426 {427 var result = await Page.EvaluateAsync<JsonElement?>(@"() => {428 window.location.reload();429 return undefined;...
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()2Microsoft.Playwright.Tests.Promise3.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()3Microsoft.Playwright.Tests.Promise4.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()4Microsoft.Playwright.Tests.Promise5.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()5Microsoft.Playwright.Tests.Promise6.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()6Microsoft.Playwright.Tests.Promise7.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()7Microsoft.Playwright.Tests.Promise8.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()8Microsoft.Playwright.Tests.Promise9.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()9Microsoft.Playwright.Tests.Promise10.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()2Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()3Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()4Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()5Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()6Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()7Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()8Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()9Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();2Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();3Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();4Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();5Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();6Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();7Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();8Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();9Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();10Microsoft.Playwright.Tests.Promise2.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1using Microsoft.Playwright.Tests;2using System.Threading.Tasks;3{4 {5 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()6 {7 await Page.GoToAsync(TestConstants.EmptyPage);8 var result = await Page.EvaluateAsync<int>("() => { window.location.href = '/one-style.html'; return 123; }");9 Assert.AreEqual(123, result);10 }11 }12}13using Microsoft.Playwright.Tests;14using System.Threading.Tasks;15{16 {17 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()18 {19 await Page.GoToAsync(TestConstants.EmptyPage);20 var result = await Page.EvaluateAsync<int>("() => { window.location.href = '/one-style.html'; return 123; }");21 Assert.AreEqual(123, result);22 }23 }24}25using Microsoft.Playwright.Tests;26using System.Threading.Tasks;27{28 {29 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()30 {31 await Page.GoToAsync(TestConstants.EmptyPage);32 var result = await Page.EvaluateAsync<int>("() => { window.location.href = '/one-style.html'; return 123; }");33 Assert.AreEqual(123, result);34 }35 }36}37using Microsoft.Playwright.Tests;38using System.Threading.Tasks;39{40 {41 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()42 {43 await Page.GoToAsync(TestConstants.EmptyPage);44 var result = await Page.EvaluateAsync<int>("() => { window.location.href = '/one-style.html'; return 123; }");
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright.Tests;7using NUnit.Framework;8{9 {10 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()11 {12 await Page.GoToAsync(TestConstants.EmptyPage);13 var result = await Page.EvaluateAsync<Page>(@"() => {14 window.location.href = '/one-style.html';15 return window;16 }");17 Assert.AreEqual(TestConstants.ServerUrl + "/one-style.html", result.Url);18 }19 }20}
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1using Microsoft.Playwright.Tests;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 var test = new Microsoft.Playwright.Tests.Promise2();9 await test.ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject();10 }11 }12}13public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()14 {15 await Page.GoToAsync(Server.EmptyPage);16 var (popup, _) = await TaskUtils.WhenAll(17 Page.WaitForEventAsync(PageEvent.Popup),18 Page.EvaluateAsync("url => window.__popup = window.open(url)", Server.EmptyPage));19 var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => popup.EvaluateAsync("() => 5"));20 Assert.Contains("Execution context was destroyed, most likely because of a navigation.", exception.Message);21 }
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5{6 {7 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()8 {9 using var playwright = await Playwright.CreateAsync();10 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11 {12 });13 var context = await browser.NewContextAsync();14 var page = await context.NewPageAsync();15 var result = await page.EvaluateAsync<string>("() => { window.location.href = '/empty.html'; return 'foo'; }");16 Console.WriteLine(result);17 }18 }19}20using System;21using System.Threading.Tasks;22using Microsoft.Playwright;23using Microsoft.Playwright.Tests;24{25 {26 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()27 {28 using var playwright = await Playwright.CreateAsync();29 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions30 {31 });32 var context = await browser.NewContextAsync();33 var page = await context.NewPageAsync();34 var result = await page.EvaluateAsync<string>("() => { window.location.href = '/empty.html'; return 'foo'; }");35 Console.WriteLine(result);36 }37 }38}
ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Xunit;5using Xunit.Abstractions;6using System.Linq;7using System.Collections.Generic;8using System.Threading;9{10 {11 public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()12 {13 await Page.GoToAsync(TestConstants.EmptyPage);14 var result = await Page.EvaluateAsync<Dictionary<string, object>>("() => { window.location.href = '/empty.html'; return { foo: 'bar' }; }");15 Assert.NotNull(result);16 Assert.Equal("bar", result["foo"]);17 }18 }19}20{21 {22 public PageTestEx(ITestOutputHelper output) : base(output)23 {24 }25 public async Task<Page> NewPageAsync()26 {27 var page = await Context.NewPageAsync();28 page.DefaultTimeout = 30000;29 page.DefaultNavigationTimeout = 30000;30 return page;31 }32 }33}34Assert.Equal() Failure
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.
Run Playwright-dotnet automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used method in Promise2
- ShouldAcceptUndefinedAsOneOfMultipleParameters
- PageEvaluateAsync
- ShouldProperlySerializeUndefinedFields
- ShouldProperlySerializeNullArguments
- ShouldProperlySerializeNullFields
- ShouldReturnUndefinedForNonSerializableObjects
- ShouldFailForCircularObject
- ShouldBeAbleToThrowATrickyError
- ShouldAcceptAStringWithComments
- ShouldAcceptElementHandleAsAnArgument
- ShouldThrowIfUnderlyingElementWasDisposed
- ShouldSimulateAUserGesture
- ShouldThrowANiceErrorAfterANavigation
- ShouldNotThrowAnErrorWhenEvaluationDoesANavigation
- ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject
- ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsUndefined
- ShouldTransfer100MbOfDataFromPageToNodeJs
- ShouldThrowErrorWithDetailedInformationOnExceptionInsidePromise
- ShouldWorkEvenWhenJSONIsSetToNull
- ShouldAwaitPromiseFromPopup
- ShouldWorkWithNonStrictExpressions
- ShouldRespectUseStrictExpression
- ShouldNotLeakUtilityScript
- ShouldNotLeakHandles
- ShouldEvaluateException
- ShouldEvaluateException2
- ShouldEvaluateDate
- ShouldRoundtripDate
- ShouldTreatEcma2020AsFunctions
- ShouldRoundtripRegex
- ShouldJsonValueDate
- ShouldSerializeEnumProperty
- ShouldNotReturnDisposedJsonElement
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
