KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use ShouldFailForCircularObject method of Microsoft.Playwright.Tests.Promise2 class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.Promise2.ShouldFailForCircularObject

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...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()347        {348            var windowHandle = await Page.EvaluateHandleAsync("() => window");349            var exceptionText = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => windowHandle.JsonValueAsync<object>());...

ShouldFailForCircularObject

Using AI Code Generation

1Microsoft.Playwright.Tests.Promise2.ShouldFailForCircularObject();2Microsoft.Playwright.Tests.Promise3.ShouldFailForCircularObject();3Microsoft.Playwright.Tests.Promise4.ShouldFailForCircularObject();4Microsoft.Playwright.Tests.Promise5.ShouldFailForCircularObject();5Microsoft.Playwright.Tests.Promise6.ShouldFailForCircularObject();6Microsoft.Playwright.Tests.Promise7.ShouldFailForCircularObject();7Microsoft.Playwright.Tests.Promise8.ShouldFailForCircularObject();8Microsoft.Playwright.Tests.Promise9.ShouldFailForCircularObject();9Microsoft.Playwright.Tests.Promise10.ShouldFailForCircularObject();10Microsoft.Playwright.Tests.Promise11.ShouldFailForCircularObject();11Microsoft.Playwright.Tests.Promise12.ShouldFailForCircularObject();12Microsoft.Playwright.Tests.Promise13.ShouldFailForCircularObject();13Microsoft.Playwright.Tests.Promise14.ShouldFailForCircularObject();

ShouldFailForCircularObject

Using AI Code Generation

1Microsoft.Playwright.Tests.Promise2.ShouldFailForCircularObject()2Microsoft.Playwright.Tests.Promise3.ShouldFailForCircularObject()3Microsoft.Playwright.Tests.Promise4.ShouldFailForCircularObject()4Microsoft.Playwright.Tests.Promise5.ShouldFailForCircularObject()5Microsoft.Playwright.Tests.Promise6.ShouldFailForCircularObject()6Microsoft.Playwright.Tests.Promise7.ShouldFailForCircularObject()7Microsoft.Playwright.Tests.Promise8.ShouldFailForCircularObject()8Microsoft.Playwright.Tests.Promise9.ShouldFailForCircularObject()9Microsoft.Playwright.Tests.Promise10.ShouldFailForCircularObject()10Microsoft.Playwright.Tests.Promise11.ShouldFailForCircularObject()11Microsoft.Playwright.Tests.Promise12.ShouldFailForCircularObject()12Microsoft.Playwright.Tests.Promise13.ShouldFailForCircularObject()13Microsoft.Playwright.Tests.Promise14.ShouldFailForCircularObject()

ShouldFailForCircularObject

Using AI Code Generation

1using Microsoft.Playwright.Tests;2{3    {4        [PlaywrightTest("promise2.spec.ts", "should fail for circular object")]5        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]6        public async Task ShouldFailForCircularObject()7        {8            await Page.EvaluateAsync(@"() => {9                const a = {};10                const b = {a};11                a.b = b;12                return new Promise(f => f(a));13            }");14        }15    }16}

ShouldFailForCircularObject

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using NUnit.Framework;3{4    [Parallelizable(ParallelScope.Self)]5    {6        public async Task ShouldFailForCircularObject()7        {8            var a = new { };9            var b = new { a = a };10            a = new { b = b };11            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("a => a", a));12            StringAssert.Contains("Argument is a circular structure", exception.Message);13        }14    }15}

ShouldFailForCircularObject

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    static async Task Main(string[] args)6    {7        using var playwright = await Playwright.CreateAsync();8        await using var browser = await playwright.Chromium.LaunchAsync();9        var page = await browser.NewPageAsync();10        var promise = page.EvaluateAsync<object>("() => new Promise(() => {})");11        var result = await promise.ShouldFailForCircularObject();12        Console.WriteLine(result);13    }14}15using System;16using System.Threading.Tasks;17using Microsoft.Playwright;18{19    static async Task Main(string[] args)20    {21        using var playwright = await Playwright.CreateAsync();22        await using var browser = await playwright.Chromium.LaunchAsync();23        var page = await browser.NewPageAsync();24        var promise = page.EvaluateAsync<object>("() => new Promise(() => {})");25        var result = await promise.ShouldFailForCircularObject("message");26        Console.WriteLine(result);27    }28}29using System;30using System.Threading.Tasks;31using Microsoft.Playwright;32{33    static async Task Main(string[] args)34    {35        using var playwright = await Playwright.CreateAsync();36        await using var browser = await playwright.Chromium.LaunchAsync();37        var page = await browser.NewPageAsync();38        var promise = page.EvaluateAsync<object>("() => new Promise(() => {})");39        var result = await promise.ShouldFailForCircularObject("message", new { timeout = 1 });40        Console.WriteLine(result);41    }42}43using System;44using System.Threading.Tasks;45using Microsoft.Playwright;46{47    static async Task Main(string[] args)48    {

ShouldFailForCircularObject

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Microsoft.Playwright.Tests;8using NUnit.Framework;9{10    {11        static void Main(string[] args)12        {13            var promise2 = new Microsoft.Playwright.Tests.Promise2();14            promise2.ShouldFailForCircularObject();15        }16    }17}

ShouldFailForCircularObject

Using AI Code Generation

1{2    public async Task ShouldFailForCircularObject()3    {4        var result = await Page.EvaluateAsync<object>("() => {5            var a = {};6            var b = {a};7            a.b = b;8            return a;9        }");10        var exception = await Assert.ThrowsAnyAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<object>("a => a", result));11        Assert.Contains("Argument is a circular structure", exception.Message);12    }13}14{15    public async Task ShouldFailForCircularArray()16    {17        var result = await Page.EvaluateAsync<object>("() => {18            var a = [];19            var b = [a];20            a[0] = b;21            return a;22        }");23        var exception = await Assert.ThrowsAnyAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<object>("a => a", result));24        Assert.Contains("Argument is a circular structure", exception.Message);25    }26}27{28    public async Task ShouldFailForCircularObjectArray()29    {30        var result = await Page.EvaluateAsync<object>("() => {31            var a = [];32            var b = {};33            b.a = a;34            a[0] = b;35            return a;36        }");37        var exception = await Assert.ThrowsAnyAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<object>("a => a", result));38        Assert.Contains("Argument is a circular structure", exception.Message);39    }40}41{42    public async Task ShouldFailForLongString()43    {44        var longString = string.Join("", Enumerable.Repeat("a", 10000));45        var exception = await Assert.ThrowsAnyAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<string>("a => a", longString));46        Assert.Contains("Argument is a circular structure", exception.Message);47    }48}

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.