How to use ShouldReturnNullIfWaitingToHideNonExistingElement method of Microsoft.Playwright.Tests.PageWaitForSelector2Tests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageWaitForSelector2Tests.ShouldReturnNullIfWaitingToHideNonExistingElement

PageWaitForSelector2Tests.cs

Source:PageWaitForSelector2Tests.cs

...96            Assert.True(await waitForSelector);97            Assert.True(divRemoved);98        }99        [PlaywrightTest("page-wait-for-selector-2.spec.ts", "should return null if waiting to hide non-existing element")]100        public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()101        {102            var handle = await Page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden });103            Assert.Null(handle);104        }105        [PlaywrightTest("page-wait-for-selector-2.spec.ts", "should respect timeout")]106        public async Task ShouldRespectTimeout()107        {108            var exception = await PlaywrightAssert.ThrowsAsync<TimeoutException>(()109                => Page.WaitForSelectorAsync("div", new() { State = WaitForSelectorState.Attached, Timeout = 3000 }));110            StringAssert.Contains("Timeout 3000ms exceeded", exception.Message);111            StringAssert.Contains("waiting for selector \"div\"", exception.Message);112        }113        [PlaywrightTest("page-wait-for-selector-2.spec.ts", "should have an error message specifically for awaiting an element to be hidden")]114        public async Task ShouldHaveAnErrorMessageSpecificallyForAwaitingAnElementToBeHidden()...

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()2{3await using var playwright = await Playwright.CreateAsync();4await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions5{6});7await using var context = await browser.NewContextAsync();8await using var page = await context.NewPageAsync();9var element = await page.WaitForSelectorAsync(".box", new PageWaitForSelectorOptions10{11});12Assert.Null(element);13}14public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()15{16await using var playwright = await Playwright.CreateAsync();17await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions18{19});20await using var context = await browser.NewContextAsync();21await using var page = await context.NewPageAsync();22var element = await page.WaitForSelectorAsync(".box", new PageWaitForSelectorOptions23{24});25Assert.Null(element);26}27public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()28{29await using var playwright = await Playwright.CreateAsync();30await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions31{32});33await using var context = await browser.NewContextAsync();34await using var page = await context.NewPageAsync();35var element = await page.WaitForSelectorAsync(".box", new PageWaitForSelectorOptions36{37});38Assert.Null(element);39}40public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()41{42await using var playwright = await Playwright.CreateAsync();43await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions44{45});46await using var context = await browser.NewContextAsync();

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright.Tests;7{8    {9        static void Main(string[] args)10        {11            PageWaitForSelector2Tests p = new PageWaitForSelector2Tests();12            p.ShouldReturnNullIfWaitingToHideNonExistingElement();13        }14    }15}16I am trying to use the Microsoft.Playwright library to automate some tests. I have been able to get it to work with the examples provided in the documentation. However, I am having trouble with the examples provided in the GitHub repository. I want to run the tests from the GitHub repository on my machine but I am unable to do so. I have tried to create a new project and add the Microsoft.Playwright project as a reference but I get the following error: "The type or namespace name 'Playwright' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)" I have also tried to add the Microsoft.Playwright library as a NuGet package but I get the following error: "NU1102: Unable to find package Microsoft.Playwright with version (>= 0.170.0) NETCoreApp,Version=v5.0". I am using Visual Studio 2019. Can anyone help me with this?

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Threading.Tasks;5using Microsoft.Playwright.Tests;6using Microsoft.Playwright.Tests.BaseTests;7using Microsoft.Playwright.Tests.Helpers;8using Microsoft.Playwright.Tests.TestServer;9using Microsoft.Playwright.Transport.Channels;10using Microsoft.Playwright.Transport.Protocol;11using Xunit;12using Xunit.Abstractions;13{14    {15        internal ShouldReturnNullIfWaitingToHideNonExistingElement(ITestOutputHelper output) : base(output)16        {17        }18        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]19        public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()20        {21            var watchdog = Page.WaitForSelectorAsync("div", state: WaitForSelectorState.Hidden);22            Assert.Null(await watchdog);23        }24    }25}

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1using System;2using System.Linq;3using System.Threading.Tasks;4using Microsoft.Playwright;5using Microsoft.Playwright.NUnit;6using NUnit.Framework;7{8    {9        [PlaywrightTest("page-wait-for-selector2.spec.ts", "should return null if waiting to hide non-existing element")]10        [Test, Timeout(TestConstants.DefaultTestTimeout)]11        public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()12        {13            var div = await Page.WaitForSelectorAsync("div", state: WaitForState.Hidden);14            Assert.Null(div);15        }16    }17}18[ PlaywrightTest ( "page-wait-for-selector2.spec.ts" ,  "should return null if waiting to hide non-existing element"

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5using NUnit.Framework;6{7    {8        public async Task ShouldReturnNullIfWaitingToHideNonExistingElement()9        {10            using var playwright = await Playwright.CreateAsync();11            await using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions12            {13            });14            var context = await browser.NewContextAsync();15            var page = await context.NewPageAsync();16            var element = await page.WaitForSelectorAsync(".box", new PageWaitForSelectorOptions17            {18            });19            Assert.Null(element);20        }21    }22}23using NUnit.Framework;24using System;25using System.Collections.Generic;26using System.Linq;27using System.Text;28using System.Threading.Tasks;29using Microsoft.Playwright;30{31    {32        static void Main(string[] args)33        {34            PlaywrightTest();35        }36        public static void PlaywrightTest()37        {38            using var playwright = Playwright.CreateAsync();39            playwright.Wait();40            var browser = playwright.Result.Chromium.LaunchAsync(new BrowserTypeLaunchOptions41            {42            });43            browser.Wait();44            var page = browser.Result.NewPageAsync();45            page.Wait();46            page.Result.WaitForSelectorAsync(".box", new PageWaitForSelectorOptions47            {48            });49        }50    }51}

ShouldReturnNullIfWaitingToHideNonExistingElement

Using AI Code Generation

1await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();2await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();3await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();4await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();5await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();6await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();7await page.WaitForSelectorAsync("non-existing", new() { State = WaitForSelectorState.Hidden }).ShouldReturnNullIfWaitingToHideNonExistingElement();

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