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

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

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...485        {486            Assert.True(await Page.EvaluateAsync<bool>(@"() => this === window"));487        }488        [PlaywrightTest("page-evaluate.spec.ts", "should not leak handles")]489        public async Task ShouldNotLeakHandles()490        {491            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<object>(@"() => handles.length"));492            StringAssert.Contains("handles", exception.Message);493        }494        [PlaywrightTest("page-evaluate.spec.ts", "should evaluate exception")]495        public async Task ShouldEvaluateException()496        {497            string exception = await Page.EvaluateAsync<string>(@"() => {498                return (function functionOnStack() {499                    return new Error('error message');500                })();501            }");502            StringAssert.Contains("Error: error message", exception);503            StringAssert.Contains("functionOnStack", exception);...

ShouldNotLeakHandles

Using AI Code Generation

1{2    [Parallelizable(ParallelScope.Self)]3    {4        [PlaywrightTest("page-evaluate.spec.ts", "should not leak handles")]5        [Test, Timeout(TestConstants.DefaultTestTimeout)]6        public async Task ShouldNotLeakHandles()7        {8            await Page.EvaluateAsync<int>(@"() => {9                window['obj'] = { a: 123 };10                return 5;11            }");12            GC.Collect();13            GC.WaitForPendingFinalizers();14            Assert.AreEqual(5, await Page.EvaluateAsync<int>(@"() => window['obj'].a"));15        }16    }17}18   at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldNotLeakHandles() in C:\Users\user\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\PageEvaluateTests.cs:line 24

ShouldNotLeakHandles

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright;6using Microsoft.Playwright.NUnit;7using NUnit.Framework;8{9    {10        [PlaywrightTest("page-evaluate.spec.ts", "should not leak handles")]11        [Test, Timeout(TestConstants.DefaultTestTimeout)]12        public async Task ShouldNotLeakHandles()13        {14            var aHandle = await Page.EvaluateHandleAsync("() => Promise.resolve(7)");15            var numberOfHandles = await Page.EvaluateAsync<int>("() => globalThis['test')");16            Assert.AreEqual(1, numberOfHandles);17            await aHandle.DisposeAsync();18        }19    }20}21Microsoft.Playwright.PlaywrightException : Protocol error (Runtime.callFunctionOn): Object reference chain is too long

ShouldNotLeakHandles

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using Xunit;3using Xunit.Abstractions;4{5    {6        public async Task ShouldNotLeakHandles()7        {8            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");9            var result = await Page.EvaluateAsync<bool>("() => globalThis.__injected");10            Assert.False(result);11        }12    }13}

ShouldNotLeakHandles

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using System;3using System.Threading.Tasks;4using Xunit;5using Xunit.Abstractions;6{7    {8        public PageEvaluateTests(ITestOutputHelper output) : base(output)9        {10        }11        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]12        public async Task ShouldNotLeakHandles()13        {14            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div><div class=\"third\"><div class=\"inner\">B</div></div></body></html>");15            var divs = await Page.QuerySelectorAllAsync("div");16            var promises = new Task<JSHandle>[divs.Length];17            for (int i = 0; i < divs.Length; ++i)18            {19                promises[i] = divs[i].EvaluateHandleAsync("div => div");20            }21            var results = await Task.WhenAll(promises);22            for (int i = 0; i < divs.Length; ++i)23            {24                Assert.Same(divs[i], results[i]);25            }26        }27    }28}

ShouldNotLeakHandles

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;8using NUnit.Framework.Interfaces;9using NUnit.Framework.Internal;10using NUnit.Framework.Internal.Commands;11using NUnit.Framework.Internal.Execution;12using NUnit.Framework.Internal.Filters;13using NUnit.Framework.Internal.WorkItems;14using NUnit.Framework.Internal.Builders;15using NUnit.Framework.Internal;16using NUnit.Framework.Interfaces;17using NUnit.Framework;18using System;19using System.Collections.Generic;20using System.Linq;21using System.Text;22using System.Threading.Tasks;23using Microsoft.Playwright.Tests;24using NUnit.Framework;25using NUnit.Framework.Interfaces;26using NUnit.Framework.Internal;27using NUnit.Framework.Internal.Commands;28using NUnit.Framework.Internal.Execution;29using NUnit.Framework.Internal.Filters;30using NUnit.Framework.Internal.WorkItems;31using NUnit.Framework.Internal.Builders;32using NUnit.Framework.Internal;33using NUnit.Framework.Interfaces;34using NUnit.Framework;35{36    {37        public void Setup()38        {39            Browser = Playwright.CreateBrowserAsync().GetAwaiter().GetResult();40            Page = Browser.NewPageAsync().GetAwaiter().GetResult();41        }42        public void TearDown()43        {44            if (TestContext.CurrentContext.Result.Outcome.Status == TestStatus.Failed)45            {46                var testName = TestContext.CurrentContext.Test.Name;47                var fileName = testName + ".png";48                Page.ScreenshotAsync(fileName).GetAwaiter().GetResult();49            }50            Browser.CloseAsync().GetAwaiter().GetResult();51        }52        public IBrowser Browser { get; set; }53        public IPage Page { get; set; }54        public async Task ShouldNotLeakHandles()55        {56            await Page.GotoAsync(Server.EmptyPage);57            for (int i = 0; i < 20; i++)58            {59                await Page.EvaluateAsync("() => new Promise(f => f())");60            }61        }62    }63}

Playwright tutorial

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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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