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How to use QuerySelectorTests class of Microsoft.Playwright.Tests package

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

QuerySelectorTests.cs

Source:QuerySelectorTests.cs

...26using Microsoft.Playwright.NUnit;27using NUnit.Framework;28namespace Microsoft.Playwright.Tests29{30    public class QuerySelectorTests : PageTestEx31    {32        [PlaywrightTest("queryselector.spec.ts", "should query existing elements")]33        public async Task ShouldQueryExistingElements()34        {35            await Page.SetContentAsync("<div>A</div><br/><div>B</div>");36            var elements = await Page.QuerySelectorAllAsync("div");37            Assert.AreEqual(2, elements.Count());38            var tasks = elements.Select(element => Page.EvaluateAsync<string>("e => e.textContent", element));39            Assert.AreEqual(new[] { "A", "B" }, await TaskUtils.WhenAll(tasks));40        }41        [PlaywrightTest("queryselector.spec.ts", "should return empty array if nothing is found")]42        public async Task ShouldReturnEmptyArrayIfNothingIsFound()43        {44            await Page.GotoAsync(Server.EmptyPage);...

QuerySelectorTests

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            var querySelectorTests = new QuerySelectorTests(page);12            await querySelectorTests.ShouldThrowOnNonExistingElement();13        }14    }15}16Test failed: PlaywrightSharp.PlaywrightSharpException: Protocol error (Runtime.callFunctionOn): Object reference chain is too long at Object.callFunctionOn (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crProtocolHelper.js:98:23) at ExecutionContext._evaluateInternal (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crExecutionContext.js:141:56) at ExecutionContext.evaluate (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crExecutionContext.js:70:17) at DOMWorld.evaluate (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crDOMWorld.js:113:30) at Frame.evaluate (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crFrame.js:160:31) at Frame.evaluateHandle (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib\server\chromium\crFrame.js:171:31) at Page.evaluateHandle (C:\Users\microsoft\source\repos\PlaywrightTest\PlaywrightTest\node_modules\playwright\lib

QuerySelectorTests

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5{6    static async Task Main(string[] args)7    {8        await using var playwright = await Playwright.CreateAsync();9        await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10        {11        });12        var page = await browser.NewPageAsync();13        await page.ClickAsync("text=Images");14        await page.ClickAsync("text=News");15        await page.ClickAsync("text=Videos");16        await page.ClickAsync("text=Maps");17        await page.ClickAsync("text=Marketplace");18        await page.ClickAsync("text=More");19        await page.ClickAsync("text=Weather");20        await page.ClickAsync("text=Finance");21        await page.ClickAsync("text=Sport");22        await page.ClickAsync("text=Entertainment");23        await page.ClickAsync("text=Food & Drink");24        await page.ClickAsync("text=Lifestyle");25        await page.ClickAsync("text=Autos");26        await page.ClickAsync("text=Travel");27        await page.ClickAsync("text=Health");28        await page.ClickAsync("text=Business");29        await page.ClickAsync("text=Shopping");30        await page.ClickAsync("text=Computer");31        await page.ClickAsync("text=Education");32        await page.ClickAsync("text=Home");33        await page.ClickAsync("text=Movies & TV");34        await page.ClickAsync("text=Music");35        await page.ClickAsync("text=People & Society");36        await page.ClickAsync("text=Religion & Spirituality");37        await page.ClickAsync("text=Science");38        await page.ClickAsync("text=Sports");39        await page.ClickAsync("text=Technology & Computing");40        await page.ClickAsync("text=Transportation");41        await page.ClickAsync("text=Web Search");42        await page.ClickAsync("text=World");43        await page.ClickAsync("text=All");44        await page.ClickAsync("text=English");45        await page.ClickAsync("text=Español");46        await page.ClickAsync("text=Português");47        await page.ClickAsync("text=Deutsch");48        await page.ClickAsync("text=Français");49        await page.ClickAsync("text=Italiano");

QuerySelectorTests

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await Playwright.InstallAsync();9            using var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            await page.QuerySelectorAsync("input[name=q]");13            var querySelectorTests = new QuerySelectorTests(page);14            await querySelectorTests.QuerySelectorShouldThrowIfNodeIsRemoved();15            await browser.CloseAsync();16        }17    }18}19      System.ArgumentNullException: Value cannot be null. (Parameter 'selector')20         at Microsoft.Playwright.Core.Page.QuerySelectorAsync(String selector)21         at Microsoft.Playwright.Tests.QuerySelectorTests.QuerySelectorShouldThrowIfNodeIsRemoved() in /home/runner/work/playwright-dotnet/playwright-dotnet/src/Playwright.Tests/Page/QuerySelectorTests.cs:line 3222         at Microsoft.Playwright.Tests.PlaywrightTest.RunTestAsync(String testName) in /home/runner/work/playwright-dotnet/playwright-dotnet/src/Playwright.Tests/PlaywrightTest.cs:line 13823      System.ArgumentNullException: Value cannot be null. (Parameter 'selector')24         at Microsoft.Playwright.Core.Page.QuerySelectorAsync(String selector)25         at Microsoft.Playwright.Tests.QuerySelectorTests.QuerySelectorShouldThrowIfNodeIsRemoved() in /home/runner/work/playwright-dotnet/playwright-dotnet/src/Playwright.Tests/Page/QuerySelectorTests.cs:line 3226         at Microsoft.Playwright.Tests.PlaywrightTest.RunTestAsync(String testName) in /home/runner/work/playwright-dotnet/playwright-dotnet/src/Playwright.Tests/PlaywrightTest.cs:line 13827      System.ArgumentNullException: Value cannot be null. (Parameter 'selector')28         at Microsoft.Playwright.Core.Page.QuerySelectorAsync(String selector)

QuerySelectorTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using Microsoft.Playwright;3using Microsoft.Playwright.NUnit;4using NUnit.Framework;5using System;6using System.Threading.Tasks;7{8    [Parallelizable(ParallelScope.Self)]9    {10        public async Task TestMethod()11        {12            using var playwright = await Playwright.CreateAsync();13            var browserType = playwright.Chromium;14            var browser = await browserType.LaunchAsync(new BrowserTypeLaunchOptions15            {16            });17            var context = await browser.NewContextAsync();18            var page = await context.NewPageAsync();19            var test = new QuerySelectorTests(page);20            await test.ShouldThrowWhenElementIsNotVisibleAsync();21        }22    }23}24  at NUnit.Framework.Assert.That[TActual](TActual actual, IResolveConstraint expression, String message, Object[] args)25  at NUnit.Framework.Assert.That[TActual](TActual actual, IResolveConstraint expression, String message, Object[] args)26  at NUnit.Framework.Assert.ThrowsAsync[T](Func`1 code, String message, Object[] args)27  at Microsoft.Playwright.Tests.QuerySelectorTests.ShouldThrowWhenElementIsNotVisibleAsync() in C:\Users\kalyan\source\repos\PlaywrightTest\PlaywrightTest\5.cs:line 3628  at PlaywrightTest.TestClass.TestMethod() in C:\Users\kalyan\source\repos\PlaywrightTest\PlaywrightTest\5.cs:line 25

QuerySelectorTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using NUnit.Framework;3using System;4using System.Threading.Tasks;5{6    {7        private QuerySelectorTests querySelectorTests;8        public void Setup()9        {10            querySelectorTests = new QuerySelectorTests();11        }12        public async Task Test1()13        {14            await querySelectorTests.ShouldWorkWithPage();15        }16    }17}

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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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