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How to use ShouldReturnNullForNonExistingElement method of Microsoft.Playwright.Tests.QuerySelectorTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.QuerySelectorTests.ShouldReturnNullForNonExistingElement

QuerySelectorTests.cs

Source:QuerySelectorTests.cs

...87            var element = await Page.QuerySelectorAsync("xpath=/html/body/section");88            Assert.NotNull(element);89        }90        [PlaywrightTest("queryselector.spec.ts", "should return null for non-existing element")]91        public async Task ShouldReturnNullForNonExistingElement()92        {93            var element = await Page.QuerySelectorAsync("non-existing-element");94            Assert.Null(element);95        }96        [PlaywrightTest("queryselector.spec.ts", "should auto-detect xpath selector")]97        public async Task ShouldAutoDetectXpathSelector()98        {99            await Page.SetContentAsync("<section>test</section>");100            var element = await Page.QuerySelectorAsync("//html/body/section");101            Assert.NotNull(element);102        }103        [PlaywrightTest("queryselector.spec.ts", "should auto-detect xpath selector with starting parenthesis")]104        public async Task ShouldAutoDetectXpathSelectorWithStartingParenthesis()105        {...

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using NUnit.Framework;4using System;5using System.Threading.Tasks;6{7    [Parallelizable(ParallelScope.Self)]8    {9        [PlaywrightTest("queryselector.spec.ts", "should return null for non-existing element")]10        [Test, Timeout(TestConstants.DefaultTestTimeout)]11        public async Task ShouldReturnNullForNonExistingElement()12        {13            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");14            var html = await Page.QuerySelectorAsync("html");15            var nonExisting = await html.QuerySelectorAsync(".third .inner");16            Assert.Null(nonExisting);17        }18    }19}

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright.Tests;2var test = new Microsoft.Playwright.Tests.QuerySelectorTests();3await test.ShouldReturnNullForNonExistingElement();4using Microsoft.Playwright.Tests;5var test = new Microsoft.Playwright.Tests.QuerySelectorTests();6await test.ShouldReturnNullForNonExistingElement();7using Microsoft.Playwright.Tests;8var test = new Microsoft.Playwright.Tests.QuerySelectorTests();9await test.ShouldReturnNullForNonExistingElement();10using Microsoft.Playwright.Tests;11var test = new Microsoft.Playwright.Tests.QuerySelectorTests();12await test.ShouldReturnNullForNonExistingElement();13using Microsoft.Playwright.Tests;14var test = new Microsoft.Playwright.Tests.QuerySelectorTests();15await test.ShouldReturnNullForNonExistingElement();16using Microsoft.Playwright.Tests;17var test = new Microsoft.Playwright.Tests.QuerySelectorTests();18await test.ShouldReturnNullForNonExistingElement();19using Microsoft.Playwright.Tests;20var test = new Microsoft.Playwright.Tests.QuerySelectorTests();21await test.ShouldReturnNullForNonExistingElement();22using Microsoft.Playwright.Tests;23var test = new Microsoft.Playwright.Tests.QuerySelectorTests();24await test.ShouldReturnNullForNonExistingElement();25using Microsoft.Playwright.Tests;26var test = new Microsoft.Playwright.Tests.QuerySelectorTests();27await test.ShouldReturnNullForNonExistingElement();

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1{2    using System.Threading.Tasks;3    using Microsoft.Playwright;4    using Microsoft.Playwright.NUnit;5    using NUnit.Framework;6    {7        [PlaywrightTest("queryselector.spec.ts", "should return null for non-existing element")]8        [Test, Timeout(TestConstants.DefaultTestTimeout)]9        public async Task ShouldReturnNullForNonExistingElement()10        {11            await Page.SetContentAsync("<html><body><div>A</div></body></html>");12            var element = await Page.QuerySelectorAsync("non-existing-element");13            Assert.Null(element);14        }15    }16}17{18    using System.Threading.Tasks;19    using Microsoft.Playwright;20    using Microsoft.Playwright.NUnit;21    using NUnit.Framework;22    {23        [PlaywrightTest("queryselector.spec.ts", "should return the only element")]24        [Test, Timeout(TestConstants.DefaultTestTimeout)]25        public async Task ShouldReturnTheOnlyElement()26        {27            await Page.SetContentAsync("<html><body><div>A</div></body></html>");28            var element = await Page.QuerySelectorAsync("html");29            Assert.AreEqual("HTML", element?.TagName);30        }31    }32}33{34    using System.Threading.Tasks;35    using Microsoft.Playwright;36    using Microsoft.Playwright.NUnit;37    using NUnit.Framework;38    {39        [PlaywrightTest("queryselector.spec.ts", "should return the only element in shadow dom")]40        [Test, Timeout(TestConstants.DefaultTestTimeout)]41        public async Task ShouldReturnTheOnlyElementInShadowDom()42        {43            await Page.SetContentAsync("<div id=\"host\"><span>42</span></div>");44            await Page.EvaluateAsync(@"() => {45                const host = document.querySelector('#host');46                const root = host.attachShadow({mode: 'open'});47                root.innerHTML = '<span>43</span>';48            }");49            var element = await Page.QuerySelectorAsync("div >> css=span");

ShouldReturnNullForNonExistingElement

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            var type = typeof(Microsoft.Playwright.Tests.QuerySelectorTests);11            var method = type.GetMethod("ShouldReturnNullForNonExistingElement", new Type[] {});12            Console.WriteLine(method.Invoke(null, new object[] {}));13        }14    }15}16{17    {18        [PlaywrightTest("queryselector.spec.ts", "should return null for non-existing element")]19        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]20        public async Task ShouldReturnNullForNonExistingElement()21        {22            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");23            var html = await Page.QuerySelectorAsync(".third .inner");24            Assert.Null(html);25        }26    }27}28{29    {30        [PlaywrightTest("queryselector.spec.ts", "should return null for non-existing element")]31        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]32        public async Task ShouldReturnNullForNonExistingElement()33        {34            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");35            var html = await Page.QuerySelectorAsync(".third .inner");36            Assert.Null(html);37        }38    }39}40   at Microsoft.Playwright.Tests.QuerySelectorTests.ShouldReturnNullForNonExistingElement()41   at Reflector.Program.Main(String[] args)42var type = typeof(Microsoft.Playwright

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4{5    {6        public QuerySelectorTests(ITestOutputHelper output) : base(output)7        {8        }9        public override BrowserType BrowserType { get; set; } = BrowserType.Chromium;10    }11}12using Microsoft.Playwright;13using Microsoft.Playwright.Tests;14using System.Threading.Tasks;15{16    {17        public QuerySelectorTests(ITestOutputHelper output) : base(output)18        {19        }20        public override BrowserType BrowserType { get; set; } = BrowserType.Webkit;21    }22}23using Microsoft.Playwright;24using Microsoft.Playwright.Tests;25using System.Threading.Tasks;26{27    {28        public QuerySelectorTests(ITestOutputHelper output) : base(output)29        {30        }31        public override BrowserType BrowserType { get; set; } = BrowserType.Firefox;32    }33}34using Microsoft.Playwright;35using Microsoft.Playwright.Tests;36using System.Threading.Tasks;37{38    {39        public QuerySelectorTests(ITestOutputHelper output) : base(output)40        {41        }42        public override BrowserType BrowserType { get; set; } = BrowserType.Chromium;43    }44}45using Microsoft.Playwright;46using Microsoft.Playwright.Tests;47using System.Threading.Tasks;48{49    {50        public QuerySelectorTests(ITestOutputHelper output) : base(output)51        {52        }53        public override BrowserType BrowserType {

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4{5    {6        public async Task ShouldReturnNullForNonExistingElement()7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var element = await page.QuerySelectorAsync("non-existing-element");15            await page.CloseAsync();16        }17    }18}19using Microsoft.Playwright;20using Microsoft.Playwright.Tests;21using System.Threading.Tasks;22{23    {24        public async Task ShouldReturnNullForNonExistingElement()25        {26            using var playwright = await Playwright.CreateAsync();27            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions28            {29            });30            var context = await browser.NewContextAsync();31            var page = await context.NewPageAsync();32            var element = await page.QuerySelectorAsync("non-existing-element");33            await page.CloseAsync();34        }35    }36}37using Microsoft.Playwright;38using Microsoft.Playwright.Tests;39using System.Threading.Tasks;40{41    {42        public async Task ShouldReturnNullForNonExistingElement()43        {44            using var playwright = await Playwright.CreateAsync();45            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions46            {47            });48            var context = await browser.NewContextAsync();49            var page = await context.NewPageAsync();50            var element = await page.QuerySelectorAsync("non-existing-element");51            await page.CloseAsync();52        }53    }54}

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System;4using System.Threading.Tasks;5{6    {7        public async Task ShouldReturnNullForNonExistingElement()8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var context = await browser.NewContextAsync();14            var page = await context.NewPageAsync();15            await page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");16            var element = await page.QuerySelectorAsync(".third .inner");17            Console.WriteLine(element);18        }19    }20}21using Microsoft.Playwright;22using Microsoft.Playwright.Tests;23using System;24using System.Threading.Tasks;25{26    {27        public async Task ShouldReturnNullForNonExistingElement()28        {29            using var playwright = await Playwright.CreateAsync();30            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions31            {32            });33            var context = await browser.NewContextAsync();34            var page = await context.NewPageAsync();35            await page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");36            var element = await page.QuerySelectorAsync(".third .inner");37            Console.WriteLine(element);38        }39    }40}41using Microsoft.Playwright;42using Microsoft.Playwright.Tests;43using System;44using System.Threading.Tasks;45{46    {47        public async Task ShouldReturnNullForNonExistingElement()48        {49            using var playwright = await Playwright.CreateAsync();50            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions51            {52            });53            var context = await browser.NewContextAsync();54            var page = await context.NewPageAsync();

ShouldReturnNullForNonExistingElement

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using System.Threading.Tasks;3{4    {5        public async Task ShouldReturnNullForNonExistingElement()6        {7            await Page.GoToAsync(TestConstants.ServerUrl + "/playground.html");8            var element = await Page.QuerySelectorAsync("non-existing-element");9            Assert.Null(element);10        }11    }12}13using Microsoft.Playwright.Tests;14using System.Threading.Tasks;15{16    {17        public async Task ShouldReturnNullForNonExistingElement()18        {19            await Page.GoToAsync(TestConstants.ServerUrl + "/playground.html");20            var element = await Page.QuerySelectorAsync("non-existing-element");21            Assert.Null(element);22        }23    }24}25using Microsoft.Playwright.Tests;26using System.Threading.Tasks;27{28    {29        public async Task ShouldReturnNullForNonExistingElement()30        {31            await Page.GoToAsync(TestConstants.ServerUrl + "/playground.html");32            var element = await Page.QuerySelectorAsync("non-existing-element");33            Assert.Null(element);34        }35    }36}37using Microsoft.Playwright.Tests;38using System.Threading.Tasks;39{40    {41        public async Task ShouldReturnNullForNonExistingElement()42        {43            await Page.GoToAsync(TestConstants.ServerUrl + "/playground.html");44            var element = await Page.QuerySelectorAsync("non-existing-element");45            Assert.Null(element);46        }47    }48}49using Microsoft.Playwright.Tests;50using System.Threading.Tasks;51{52    {

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