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

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

ElementHandleQuerySelectorTests.cs

Source:ElementHandleQuerySelectorTests.cs

...29{30    public class ElementHandleQuerySelectorTests : PageTestEx31    {32        [PlaywrightTest("elementhandle-query-selector.spec.ts", "should query existing element")]33        public async Task ShouldQueryExistingElement()34        {35            await Page.GotoAsync(Server.Prefix + "/playground.html");36            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");37            var html = await Page.QuerySelectorAsync("html");38            var second = await html.QuerySelectorAsync(".second");39            var inner = await second.QuerySelectorAsync(".inner");40            string content = await Page.EvaluateAsync<string>("e => e.textContent", inner);41            Assert.AreEqual("A", content);42        }43        [PlaywrightTest("elementhandle-query-selector.spec.ts", "should return null for non-existing element")]44        public async Task ShouldReturnNullForNonExistingElement()45        {46            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">B</div></div></body></html>");47            var html = await Page.QuerySelectorAsync("html");48            var second = await html.QuerySelectorAsync(".third");49            Assert.Null(second);50        }51        [PlaywrightTest("elementhandle-query-selector.spec.ts", "should work for adopted elements")]52        public async Task ShouldWorkForAdoptedElements()53        {54            await Page.GotoAsync(Server.EmptyPage);55            var (popup, _) = await TaskUtils.WhenAll(56                Page.WaitForPopupAsync(),57                Page.EvaluateAsync("url => window.__popup = window.open(url)", Server.EmptyPage));58            var divHandle = await Page.EvaluateHandleAsync(@"() => {59                const div = document.createElement('div');60                document.body.appendChild(div);61                const span = document.createElement('span');62                span.textContent = 'hello';63                div.appendChild(span);64                return div;65            }") as IElementHandle;66            Assert.NotNull(divHandle);67            Assert.AreEqual("hello", await divHandle.EvalOnSelectorAsync<string>("span", "e => e.textContent"));68            await popup.WaitForLoadStateAsync(LoadState.DOMContentLoaded);69            await Page.EvaluateAsync(@"() => {70              const div = document.querySelector('div');71              window.__popup.document.body.appendChild(div);72            }");73            Assert.NotNull(await divHandle.QuerySelectorAsync("span"));74            Assert.AreEqual("hello", await divHandle.EvalOnSelectorAsync<string>("span", "e => e.textContent"));75        }76        [PlaywrightTest("elementhandle-query-selector.spec.ts", "should query existing elements")]77        public async Task ShouldQueryExistingElements()78        {79            await Page.SetContentAsync("<html><body><div>A</div><br/><div>B</div></body></html>");80            var html = await Page.QuerySelectorAsync("html");81            var elements = await html.QuerySelectorAllAsync("div");82            Assert.AreEqual(2, elements.Count());83            var tasks = elements.Select(element => Page.EvaluateAsync<string>("e => e.textContent", element));84            Assert.AreEqual(new[] { "A", "B" }, await TaskUtils.WhenAll(tasks));85        }86        [PlaywrightTest("elementhandle-query-selector.spec.ts", "should return empty array for non-existing elements")]87        public async Task ShouldReturnEmptyArrayForNonExistingElements()88        {89            await Page.SetContentAsync("<html><body><span>A</span><br/><span>B</span></body></html>");90            var html = await Page.QuerySelectorAsync("html");91            var elements = await html.QuerySelectorAllAsync("div");92            Assert.IsEmpty(elements);93        }94        [PlaywrightTest("elementhandle-query-selector.spec.ts", "xpath should query existing element")]95        public async Task XPathShouldQueryExistingElement()96        {97            await Page.GotoAsync(Server.Prefix + "/playground.html");98            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");99            var html = await Page.QuerySelectorAsync("html");100            var second = await html.QuerySelectorAllAsync("xpath=./body/div[contains(@class, 'second')]");101            var inner = await second.First().QuerySelectorAllAsync("xpath=./div[contains(@class, 'inner')]");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");...

ShouldQueryExistingElement

Using AI Code Generation

1{2    {3        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]4        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]5        public async Task ShouldQueryExistingElement()6        {7            await Page.SetContentAsync(@"8            </html>");9            var second = await Page.QuerySelectorAsync(".second");10            var inner = await second.QuerySelectorAsync(".inner");11            string content = await Page.EvaluateAsync<string>("e => e.textContent", inner);12            Assert.Equal("A", content);13        }14    }15}16{17    {18        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]19        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]20        public async Task ShouldQueryExistingElement()21        {22            await Page.SetContentAsync(@"23            </html>");24            var second = await Page.QuerySelectorAsync(".second");25            var inner = await second.QuerySelectorAsync(".inner");26            string content = await Page.EvaluateAsync<string>("e => e.textContent", inner);27            Assert.Equal("A", content);28        }29    }30}

ShouldQueryExistingElement

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Text;5    using System.Threading.Tasks;6    using PlaywrightSharp;7    using PlaywrightSharp.Tests.BaseTests;8    using Xunit;9    using Xunit.Abstractions;10    [Trait("Category", "firefox")]11    {12        internal ElementHandleQuerySelectorTests(ITestOutputHelper output) : base(output)13        {14        }15        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]16        public async Task ShouldQueryExistingElement()17        {18            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");19            var html = await Page.QuerySelectorAsync("html");20            var second = await html.QuerySelectorAsync(".second");21            var inner = await second.QuerySelectorAsync(".inner");22            var content = await Page.EvaluateAsync<string>("e => e.textContent", inner);23            Assert.Equal("A", content);24        }25    }26}

ShouldQueryExistingElement

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Playwright;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions {Headless = false});9            var page = await browser.NewPageAsync();10            var element = await page.QuerySelectorAsync("input[name=search]");11            var result = await element.ShouldQueryExistingElement();12            System.Console.WriteLine(result);13        }14    }15}

ShouldQueryExistingElement

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System;4using System.Collections.Generic;5using System.Text;6using System.Threading.Tasks;7using Xunit;8using Xunit.Abstractions;9{10    {11        public ElementHandleQuerySelectorTests(ITestOutputHelper output) : base(output)12        {13        }14        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]15        [Fact(Timeout = TestConstants.DefaultTestTimeout)]16        public async Task ShouldQueryExistingElement()17        {18            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");19            var html = await Page.QuerySelectorAsync("html");20            var second = await html.QuerySelectorAsync(".second");21            var inner = await second.QuerySelectorAsync(".inner");22            Assert.Equal("A", await inner.EvaluateAsync<string>("e => e.textContent"));23        }24    }25}26using Microsoft.Playwright;27using Microsoft.Playwright.Tests;28using System;29using System.Collections.Generic;30using System.Text;31using System.Threading.Tasks;32using Xunit;33using Xunit.Abstractions;34{35    {36        public ElementHandleQuerySelectorTests(ITestOutputHelper output) : base(output)37        {38        }39        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should return null for non-existing element")]40        [Fact(Timeout = TestConstants.DefaultTestTimeout)]41        public async Task ShouldReturnNullForNonExistingElement()42        {43            await Page.SetContentAsync("<html><body><div class=\"second\"></div></body></html>");44            var html = await Page.QuerySelectorAsync("html");45            var second = await html.QuerySelectorAsync(".third");46            Assert.Null(second);47        }48    }49}50using Microsoft.Playwright;51using Microsoft.Playwright.Tests;52using System;

ShouldQueryExistingElement

Using AI Code Generation

1        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]2        public async Task ShouldQueryExistingElement()3        {4            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");5            var html = await Page.QuerySelectorAsync("html");6            var second = await html.QuerySelectorAsync(".second");7            var inner = await second.QuerySelectorAsync(".inner");8            var content = await Page.EvaluateAsync<string>("e => e.textContent", inner);9            Assert.AreEqual("A", content);10        }11        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]12        public async Task ShouldQueryExistingElement()13        {14            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");15            var html = await Page.QuerySelectorAsync("html");16            var second = await html.QuerySelectorAsync(".second");17            var inner = await second.QuerySelectorAsync(".inner");18            var content = await Page.EvaluateAsync<string>("e => e.textContent", inner);19            Assert.AreEqual("A", content);20        }21        [PlaywrightTest("elementhandle-queryselector.spec.ts", "should query existing element")]22        public async Task ShouldQueryExistingElement()23        {24            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");25            var html = await Page.QuerySelectorAsync("html");26            var second = await html.QuerySelectorAsync(".second");27            var inner = await second.QuerySelectorAsync(".inner");28            var content = await Page.EvaluateAsync<string>("e => e.textContent", inner);29            Assert.AreEqual("A", content);30        }

Playwright tutorial

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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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