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

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

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...328            dynamic result = await Page.EvaluateAsync<ExpandoObject>("() => ({ a: null})");329            Assert.Null(result.a);330        }331        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]332        public async Task ShouldReturnUndefinedForNonSerializableObjects()333            => Assert.Null(await Page.EvaluateAsync<object>("() => window"));334        [PlaywrightTest("page-evaluate.spec.ts", "should fail for circular object")]335        public async Task ShouldFailForCircularObject()336        {337            object result = await Page.EvaluateAsync<object>(@"() => {338                var a = { };339                var b = { a };340                a.b = b;341                return a;342            }");343            Assert.Null(result);344        }345        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw a tricky error")]346        public async Task ShouldBeAbleToThrowATrickyError()...

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using NUnit.Framework;8{9    [Parallelizable(ParallelScope.Self)]10    {11        [PlaywrightTest("page-evaluate.spec.ts", "should work")]12        [Test, Timeout(TestConstants.DefaultTestTimeout)]13        public async Task ShouldWork()14        {15            var result = await Page.EvaluateAsync<int>("() => 7 * 3");16            Assert.AreEqual(21, result);17        }18        [PlaywrightTest("page-evaluate.spec.ts", "should transfer NaN")]19        [Test, Timeout(TestConstants.DefaultTestTimeout)]20        public async Task ShouldTransferNaN()21        {22            var result = await Page.EvaluateAsync<double>("a => a", double.NaN);23            Assert.AreEqual(double.NaN, result);24        }25        [PlaywrightTest("page-evaluate.spec.ts", "should transfer -0")]26        [Test, Timeout(TestConstants.DefaultTestTimeout)]27        public async Task ShouldTransferNegative0()28        {29            var result = await Page.EvaluateAsync<double>("a => a", -0);30            Assert.AreEqual(-0, result);31        }32        [PlaywrightTest("page-evaluate.spec.ts", "should transfer Infinity")]33        [Test, Timeout(TestConstants.DefaultTestTimeout)]34        public async Task ShouldTransferInfinity()35        {36            var result = await Page.EvaluateAsync<double>("a => a", double.PositiveInfinity);37            Assert.AreEqual(double.PositiveInfinity, result);38        }39        [PlaywrightTest("page-evaluate.spec.ts", "should transfer -Infinity")]40        [Test, Timeout(TestConstants.DefaultTestTimeout)]41        public async Task ShouldTransferNegativeInfinity()42        {43            var result = await Page.EvaluateAsync<double>("a => a", double.NegativeInfinity);44            Assert.AreEqual(double.NegativeInfinity, result);45        }46        [PlaywrightTest("page-evaluate.spec.ts", "should roundtrip unserializable values")]

ShouldReturnUndefinedForNonSerializableObjects

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        public PageEvaluateTests(ITestOutputHelper output) : base(output)10        {11        }12        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]13        [Fact(Timeout = TestConstants.DefaultTestTimeout)]14        public async Task ShouldReturnUndefinedForNonSerializableObjects()15        {16            var exception = await Assert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<string>("() => window"));17            StringAssert.Contains("Object reference chain is too long", exception.Message);18        }19    }20}21at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldReturnUndefinedForNonSerializableObjects() in C:\Users\asus\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\PageEvaluateTests.cs:line 2922at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()23at Microsoft.Playwright.Tests.BasePlaywrightTest.RunTestAsync() in C:\Users\asus\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\BasePlaywrightTest.cs:line 6224System.AggregateException : One or more errors occurred. (Object reference chain is too long)

ShouldReturnUndefinedForNonSerializableObjects

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 Xunit;8    using Xunit.Abstractions;9    public void ShouldReturnUndefinedForNonSerializableObjects()10    {11        var exception = await Assert.ThrowsAsync<PlaywrightException>(() =>12        {13            return Page.EvaluateAsync("() => window");14        });15        Assert.Contains("Object reference chain is too long", exception.Message);16    }17}

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Text;5    using System.Threading.Tasks;6    using Microsoft.Playwright;7    using Microsoft.Playwright.NUnit;8    using NUnit.Framework;9    using NUnit.Framework.Interfaces;10    {11        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]12        [Test, Timeout(TestConstants.DefaultTestTimeout)]13        public async Task ShouldReturnUndefinedForNonSerializableObjects()14        {15            var result = await Page.EvaluateAsync<object>("() => window");16            Assert.AreEqual(null, result);17        }18    }19}

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6{7    {8        static void Main(string[] args)9        {10            Microsoft.Playwright.Tests.PageEvaluateTests _PageEvaluateTests = new Microsoft.Playwright.Tests.PageEvaluateTests();11            _PageEvaluateTests.ShouldReturnUndefinedForNonSerializableObjects();12        }13    }14}15{16    {17        public void ShouldReturnUndefinedForNonSerializableObjects()18        {19            var result = Page.EvaluateAsync<object>("() => window");20        }21    }22}

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1using System;2using System.Reflection;3{4    {5        static void Main(string[] args)6        {7            var assembly = Assembly.LoadFrom(@"C:\Users\username\source\repos\playwright-sharp\src\PlaywrightSharp.Tests\bin\Debug\netcoreapp3.1\Microsoft.Playwright.Tests.dll");8            var type = assembly.GetType("Microsoft.Playwright.Tests.PageEvaluateTests");9            var method = type.GetMethod("ShouldReturnUndefinedForNonSerializableObjects");10            var instance = Activator.CreateInstance(type);11            method.Invoke(instance, null);12        }13    }14}15var assembly = Assembly.LoadFrom(@"C:\Users\username\source\repos\playwright-sharp\src\PlaywrightSharp.Tests\bin\Debug\netcoreapp3.1\Microsoft.Playwright.Tests.dll");16var type = assembly.GetType("Microsoft.Playwright.Tests.PageEvaluateTests");17var method = type.GetMethod("ShouldReturnUndefinedForNonSerializableObjects");18var instance = Activator.CreateInstance(type);19method.Invoke(instance, null);20var assembly = Assembly.LoadFrom(@"C:\Users\username\source\repos\playwright-sharp\src\PlaywrightSharp.Tests\bin\Debug\netcoreapp3.1\Microsoft.Playwright.Tests.dll");21var type = assembly.GetType("Microsoft.Playwright.Tests.PageEvaluateTests");22var method = type.GetMethod("ShouldReturnUndefinedForNonSerializableObjects");23var instance = Activator.CreateInstance(type);24method.Invoke(instance, null);

ShouldReturnUndefinedForNonSerializableObjects

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.Tests;9    using NUnit.Framework;10    using NUnit.Framework.Interfaces;11    using NUnit.Framework.Internal;12    using NUnit.Framework.Internal.Builders;13    using NUnit.Framework.Internal.Commands;14    using NUnit.Framework.Internal.Execution;15    using NUnit.Framework.Internal.Filters;16    using NUnit.Framework.Internal.Listeners;17    using NUnit.Framework.Internal.Results;18    using NUnit.Framework.Internal.Runners;19    using NUnit.Framework.Internal.WorkItems;20    {21        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]22        [Test, Timeout(TestConstants.DefaultTestTimeout)]23        public async Task ShouldReturnUndefinedForNonSerializableObjects()24        {25            var result = await Page.EvaluateAsync<JsonElement?>("() => window");26            Assert.Null(result);27        }28    }29}

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1using System;2using System.Collections;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Microsoft.Playwright.Tests;8{9    {10        static void Main(string[] args)11        {12            PageEvaluateTests obj = new PageEvaluateTests();13            obj.ShouldReturnUndefinedForNonSerializableObjects();14        }15    }16}17{18    using System;19    using System.Collections.Generic;20    using System.IO;21    using System.Linq;22    using System.Text;23    using System.Text.Json;24    using System.Text.RegularExpressions;25    using System.Threading;26    using System.Threading.Tasks;27    using Microsoft.Playwright;28    using Microsoft.Playwright.Helpers;29    using Microsoft.Playwright.Transport.Channels;30    using Microsoft.Playwright.Transport.Protocol;31    using Microsoft.Playwright.NUnit;32    using NUnit.Framework;33    {34        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]35        [Test, Timeout(TestConstants.DefaultTestTimeout)]36        public async Task ShouldReturnUndefinedForNonSerializableObjects()37        {38            var result = await Page.EvaluateAsync<object>("() => window");39            Assert.Null(result);40        }41    }42}

ShouldReturnUndefinedForNonSerializableObjects

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5{6    {7        static async Task Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            await Playwright.InstallAsync();11            using var playwright = await Playwright.CreateAsync();12            await using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions13            {14            });15            var context = await browser.NewContextAsync();16            var page = await context.NewPageAsync();17            await page.EvaluateAsync(@"() => {18                window['windowProperty'] = 123;19            }");20            var result = await page.EvaluateAsync(@"() => {21                return window['windowProperty'];22            }");23            Console.WriteLine(result);24        }25    }26}

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.
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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.