Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

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

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

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...98            double nzero = await Page.EvaluateAsync<double>("value => Promise.resolve(value)", -0d);99            Assert.AreEqual(-0, nzero);100        }101        [PlaywrightTest("page-evaluate.spec.ts", "should roundtrip promise to unserializable values")]102        public async Task ShouldRoundtripPromiseToUnserializableValues()103        {104            dynamic value = new105            {106                infinity = double.PositiveInfinity,107                nInfinity = double.NegativeInfinity,108                nZero = -0d,109                nan = double.NaN,110            };111            dynamic result = await Page.EvaluateAsync<ExpandoObject>("value => Promise.resolve(value)", value);112            Assert.AreEqual(value.infinity, result.infinity);113            Assert.AreEqual(value.nInfinity, result.nInfinity);114            Assert.AreEqual(value.nZero, result.nZero);115            Assert.AreEqual(value.nan, result.nan);116        }...

ShouldRoundtripPromiseToUnserializableValues

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Webkit.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var result = await page.EvaluateAsync<object>("() => Promise.resolve(window)");15            await page.CloseAsync();16        }17    }18}19Unhandled exception. System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Playwright' threw an exception. ---> System.AggregateException: One or more errors occurred. (System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Playwright' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Helper' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Playwright' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Helper' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Playwright.Playwright' threw

ShouldRoundtripPromiseToUnserializableValues

Using AI Code Generation

1public void ShouldRoundtripPromiseToUnserializableValues()2{3    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();4}5public void ShouldRoundtripPromiseToUnserializableValues()6{7    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();8}9public void ShouldRoundtripPromiseToUnserializableValues()10{11    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();12}13public void ShouldRoundtripPromiseToUnserializableValues()14{15    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();16}17public void ShouldRoundtripPromiseToUnserializableValues()18{19    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();20}21public void ShouldRoundtripPromiseToUnserializableValues()22{23    Microsoft.Playwright.Tests.PageEvaluateTests.ShouldRoundtripPromiseToUnserializableValues();24}

ShouldRoundtripPromiseToUnserializableValues

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 roundtrip promise to unserializable values")]13        [Test, Timeout(TestConstants.DefaultTestTimeout)]14        public async Task ShouldRoundtripPromiseToUnserializableValues()15        {16            await Page.EvaluateAsync(@"() => {17                window.__FOO = Promise.resolve(window);18            }");19            var result = await Page.EvaluateAsync<JSHandle>("() => window.__FOO");20            Assert.AreEqual(await result.JsonValueAsync(), "JSHandle@object");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 roundtrip promise to unserializable values")]36        [Test, Timeout(TestConstants.DefaultTestTimeout)]37        public async Task ShouldRoundtripPromiseToUnserializableValues()38        {39            await Page.EvaluateAsync(@"() => {40                window.__FOO = Promise.resolve(window);41            }");42            var result = await Page.EvaluateAsync<JSHandle>("() => window.__FOO");43            Assert.AreEqual(await result.JsonValueAsync(), "JSHandle@object");44        }45    }46}47{48    using System;49    using System.Collections.Generic;50    using System.Linq;51    using System.Text;52    using System.Threading.Tasks;53    using Microsoft.Playwright;54    using Microsoft.Playwright.NUnit;

ShouldRoundtripPromiseToUnserializableValues

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using NUnit.Framework;4using System;5using System.Collections.Generic;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9using System.Threading;10{11    {12        public async Task TestMethod()13        {14            using var playwright = await Playwright.CreateAsync();15            await using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions16            {17            });18            var context = await browser.NewContextAsync();19            var page = await context.NewPageAsync();20            var result = await page.EvaluateAsync<object>("() => Promise.resolve(window)");21            Assert.AreEqual(result, page.MainFrame);22        }23    }24}

ShouldRoundtripPromiseToUnserializableValues

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Threading.Tasks;5using Microsoft.Playwright;6using Xunit;7{8    {9        public async Task ShouldRoundtripPromiseToUnserializableValues()10        {11            await Page.EvaluateAsync<object>("() => window['a'] = { a: 1 }");12            var result = await Page.EvaluateAsync<object>("() => window['a']");13            Assert.Equal(1, result);14        }15    }16}

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.