How to use XPathShouldReturnNullForNonExistingElement method of Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement

ElementHandleQuerySelectorTests.cs

Source:ElementHandleQuerySelectorTests.cs Github

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...102 string content = await Page.EvaluateAsync<string>("e => e.textContent", inner.First());103 Assert.AreEqual("A", content);104 }105 [PlaywrightTest("elementhandle-query-selector.spec.ts", "xpath should return null for non-existing element")]106 public async Task XPathShouldReturnNullForNonExistingElement()107 {108 await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">B</div></div></body></html>");109 var html = await Page.QuerySelectorAsync("html");110 var second = await html.QuerySelectorAllAsync("xpath=/div[contains(@class, 'third')]");111 Assert.IsEmpty(second);112 }113 }114}...

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XPathShouldReturnNullForNonExistingElement

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1{2 [Parallelizable(ParallelScope.Self)]3 {4 [PlaywrightTest("elementhandle-queryselector.spec.ts", "should return null for non-existing element")]5 [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]6 public async Task XPathShouldReturnNullForNonExistingElement()7 {8 await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");9 var html = await Page.QuerySelectorAsync("html");10 var element = await html.QuerySelectorAsync("./foo");11 Assert.Null(element);12 }13 }14}

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XPathShouldReturnNullForNonExistingElement

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

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XPathShouldReturnNullForNonExistingElement

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Tests;8using NUnit.Framework;9using NUnit.Framework.Interfaces;10{11 {12 public async Task TestMethod1()13 {14 var playwright = await Playwright.CreateAsync();15 var browserType = playwright.Chromium;16 using var browser = await browserType.LaunchAsync(new BrowserTypeLaunchOptions17 {18 });19 var context = await browser.NewContextAsync();20 var page = await context.NewPageAsync();21 await page.QuerySelectorAsync("input");22 await page.QuerySelectorAsync("non-existing-element");23 }24 }25}

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XPathShouldReturnNullForNonExistingElement

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1using System;2using System.Collections;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using System.Xml;8using System.Xml.XPath;9{10 {11 static void Main(string[] args)12 {13 var doc = new XPathDocument("C:\\Users\\Administrator\\Downloads\\5.cs");14 var nav = doc.CreateNavigator();15 var iter = nav.Select("/CompilationUnit/UsingDirective/Name");16 while (iter.MoveNext())17 {18 Console.WriteLine(iter.Current.Value);19 }20 }21 }22}23I have a web application with a login page. I need to test the login functionality. My login page has a form with 2 fields (username and password). I tried using the below code to login to the application:24using System;25using System.Collections;26using System.Collections.Generic;27using System.Linq;28using System.Text;29using System.Threading.Tasks;30using System.Xml;31using System.Xml.XPath;32{33 {34 static void Main(string[] args)35 {36 var doc = new XPathDocument("C:\\Users\\Administrator\\Downloads\\5.cs");37 var nav = doc.CreateNavigator();38 var iter = nav.Select("/CompilationUnit/UsingDirective/Name");39 while (iter.MoveNext())40 {41 Console.WriteLine(iter.Current.Value);42 }43 }44 }45}

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XPathShouldReturnNullForNonExistingElement

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1Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()2Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()3Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()4Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()5Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()6Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()7Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()8Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()9Microsoft.Playwright.Tests.ElementHandleQuerySelectorTests.XPathShouldReturnNullForNonExistingElement()

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