KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use Assertions class of Microsoft.Playwright package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Assertions

CocoonFunctionalityBase.cs

Source:CocoonFunctionalityBase.cs

1using System;2using System.Threading.Tasks;3using FluentAssertions;4using Microsoft.Playwright;5using Xunit;6namespace ReCode.Cocoon.Integration.Tests7{8    public abstract class CocoonFunctionalityBase9    {10        protected abstract string BaseUrl { get; }11        protected BrowserTypeLaunchOptions BrowserTypeLaunchOptions { get; }12        13        protected CocoonFunctionalityBase(bool headless)14        {15            BrowserTypeLaunchOptions = new BrowserTypeLaunchOptions16            {17                Headless = headless...

HeaderMenuNavigationSmoke.cs

Source:HeaderMenuNavigationSmoke.cs

1namespace ContosoUniversity.AcceptanceTests;2using System.Threading.Tasks;3using FluentAssertions;4using Microsoft.Playwright;5using Microsoft.Playwright.NUnit;6using NUnit.Framework;7[Parallelizable(ParallelScope.Self)]8public class HeaderMenuNavigationSmoke : PageTest9{10    private const string SiteUrl = "https://localhost:5001";11    [Ignore("we will play further with SpecFlow-based E2E testing")]12    [Test]13    [TestCase($"{SiteUrl}/", "Home Page - Contoso University")]14    [TestCase($"{SiteUrl}/Home", "Home Page - Contoso University")]15    [TestCase($"{SiteUrl}/Home/About", "Student Body Statistics - Contoso University")]16    [TestCase($"{SiteUrl}/Students", "Index - Contoso University")]17    [TestCase($"{SiteUrl}/Courses", "Courses - Contoso University")]...

CocoonFunctionalityBlazorServer.cs

Source:CocoonFunctionalityBlazorServer.cs

1using System.Threading.Tasks;2using FluentAssertions;3using Microsoft.Playwright;4namespace ReCode.Cocoon.Integration.Tests5{6    public class CocoonFunctionalityBlazorServer : CocoonFunctionalityBase7    {8        protected override string BaseUrl  => "http://localhost:5005";9        10        public CocoonFunctionalityBlazorServer() : base(true)11        {12        }13        14        public override async Task Pages_Available_In_Modern_App_Should_Serve_Before_Cocoon()15        {16            // Arrange...

CocoonFunctionalityWasm.cs

Source:CocoonFunctionalityWasm.cs

1using System;2using System.Threading.Tasks;3using FluentAssertions;4using Microsoft.Playwright;5using Xunit;6namespace ReCode.Cocoon.Integration.Tests7{8    public class CocoonFunctionalityWasm : CocoonFunctionalityBase9    {10        protected override string BaseUrl => "http://localhost:5000";11        12        public CocoonFunctionalityWasm() : base(true)13        {14        }15        16        public override async Task Pages_Available_In_Modern_App_Should_Serve_Before_Cocoon()17        {...

CocoonFunctionalityCore.cs

Source:CocoonFunctionalityCore.cs

1using System.Threading.Tasks;2using FluentAssertions;3using Microsoft.Playwright;4using Xunit;5namespace ReCode.Cocoon.Integration.Tests6{7    public class CocoonFunctionalityCore : CocoonFunctionalityBase8    {9        protected override string BaseUrl => "http://localhost:5003";10        public CocoonFunctionalityCore() : base(true)11        {12        }13        14        public override async Task Pages_Available_In_Modern_App_Should_Serve_Before_Cocoon()15        {16            // Arrange...

BasicFeaturesTest.cs

Source:BasicFeaturesTest.cs

1using FluentAssertions;2using Microsoft.Extensions.Configuration;3using PlaywrightSharp;4using System;5using System.IO;6using System.Threading.Tasks;7using Xunit;8namespace ProjectionalBlazorMonaco.Tests9{10    public class BasicFeaturesTest : IClassFixture<DevHostServerFixture>11    {12        private readonly DevHostServerFixture _server;13        public BasicFeaturesTest(DevHostServerFixture server)14        {15            _server = server;...

Assertions

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Assertions;3using System;4using System.Threading.Tasks;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(new BrowserTypeLaunchOptions10        {11        });12        var page = await browser.NewPageAsync();13        await page.ClickAsync("text=Accept");

Assertions

Using AI Code Generation

1using Microsoft.Playwright;2using System;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(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ClickAsync("text=Sign in");14            var title = await page.TitleAsync();15            Console.WriteLine(title);

Assertions

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            await page.ClickAsync("text=Sign in");13            await page.FillAsync("input[name='identifier']", "test");14            await page.ClickAsync("text=Next");15            await page.ClickAsync("text=Forgot email?");16            await page.ClickAsync("text=Create account");17            await page.ClickAsync("text=Terms");18            await page.ClickAsync("text=Privacy");19            await page.ClickAsync("text=Help");20            await page.ClickAsync("text=Send feedback");21            await page.ClickAsync("text=Google apps");22            await page.ClickAsync("text=About");23            await page.ClickAsync("text=Advertising");24            await page.ClickAsync("text=Business");25            await page.ClickAsync("text=How Search works");26            await page.ClickAsync("text=Google.com");27            await page.ClickAsync("text=Privacy");28            await page.ClickAsync("text=Terms");29            await page.ClickAsync("text=Settings");30            await page.ClickAsync("text=Sign in");31            await page.ClickAsync("text=Google apps");32            await page.ClickAsync("text=About");33            await page.ClickAsync("text=Advertising");34            await page.ClickAsync("text=Business");35            await page.ClickAsync("text=How Search works");36            await page.ClickAsync("text=Google.com");37            await page.ClickAsync("text=Privacy");38            await page.ClickAsync("text=Terms");39            await page.ClickAsync("text=Settings");40            await page.ClickAsync("text=Sign in");41            await page.ClickAsync("text=Google apps");42            await page.ClickAsync("text=About");43            await page.ClickAsync("text=Advertising");44            await page.ClickAsync("text=Business");45            await page.ClickAsync("text=How Search works");46            await page.ClickAsync("text=Google.com");47            await page.ClickAsync("text=Privacy");48            await page.ClickAsync("text=Terms");

Assertions

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests.Attributes;5using Microsoft.Playwright.Tests.Helpers;6using Microsoft.Playwright.Tests.TestServer;7using Microsoft.Playwright.Transport.Channels;8using Microsoft.Playwright.Transport.Protocol;9using NUnit.Framework;10using NUnit.Framework.Interfaces;11using PlaywrightSharp.Tests.BaseTests;12using PlaywrightSharp.Tests.Helpers;13using PlaywrightSharp.Tests.Attributes;14{15    {16        [PlaywrightTest("2.cs", "2", "should work")]17        [Test, Timeout(TestConstants.DefaultTestTimeout)]18        public async Task ShouldWork()19        {20            var page = await Browser.NewPageAsync();21            await page.GotoAsync(Server.EmptyPage);22            await page.EvaluateAsync("() => window['result'] = 8 * 7");23            var result = await page.EvaluateAsync<int>("() => window['result']");24            Assert.AreEqual(56, result);25        }26    }27}28using System;29using System.Threading.Tasks;30using Microsoft.Playwright;31using Microsoft.Playwright.Tests.Attributes;32using Microsoft.Playwright.Tests.Helpers;33using Microsoft.Playwright.Tests.TestServer;34using Microsoft.Playwright.Transport.Channels;35using Microsoft.Playwright.Transport.Protocol;36using NUnit.Framework;37using NUnit.Framework.Interfaces;38using PlaywrightSharp.Tests.BaseTests;39using PlaywrightSharp.Tests.Helpers;40using PlaywrightSharp.Tests.Attributes;41{42    {43        [PlaywrightTest("2.cs", "2", "should work")]44        [Test, Timeout(TestConstants.DefaultTestTimeout)]45        public async Task ShouldWork()46        {47            var page = await Browser.NewPageAsync();48            await page.GotoAsync(Server.EmptyPage);49            await page.EvaluateAsync("() => window['result'] = 8 * 7");50            var result = await page.EvaluateAsync<int>("() => window['result']");51            Assert.AreEqual(56, result);52        }53    }54}55using System;56using System.Threading.Tasks;57using Microsoft.Playwright;58using Microsoft.Playwright.Tests.Attributes;59using Microsoft.Playwright.Tests.Helpers;60using Microsoft.Playwright.Tests.TestServer;61using Microsoft.Playwright.Transport.Channels;62using Microsoft.Playwright.Transport.Protocol;

Assertions

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Assertions;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var title = await page.TitleAsync();15            Console.WriteLine(title);16            await page.WaitForSelectorAsync("title");17            await page.AssertSelectorTextAsync("title", "Google");18            await page.AssertSelectorTextAsync("title", "Google", new PageAssertSelectorTextOptions19            {20            });21            await page.AssertSelectorTextAsync("title", "Google", new PageAssertSelectorTextOptions22            {23            });24            await page.AssertSelectorTextAsync("title", "Google", new PageAssertSelectorTextOptions25            {26            });27            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions28            {29            });30            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions31            {32            });33            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions34            {35            });36            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions37            {38            });39            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions40            {41            });42            await page.AssertSelectorValueAsync("input", "Google", new PageAssertSelectorValueOptions43            {

Assertions

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5{6static async Task Main(string[] args)7{8using var playwright = await Playwright.CreateAsync();9using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions10{11});12using var context = await browser.NewContextAsync();13var page = await context.NewPageAsync();14await page.ClickAsync("input[title='Search']");15await page.TypeAsync("input[title='Search']", "Hello World");16await page.ClickAsync("input[value='Google Search']");17}18}19}20using Microsoft.Playwright;21using System;22using System.Threading.Tasks;23{24{25static async Task Main(string[] args)26{27using var playwright = await Playwright.CreateAsync();28using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions29{30});31using var context = await browser.NewContextAsync();32var page = await context.NewPageAsync();33await page.ClickAsync("input[title='Search']");34await page.TypeAsync("input[title='Search']", "Hello World");35await page.ClickAsync("input[value='Google Search']");36}37}38}39using Microsoft.Playwright;40using System;41using System.Threading.Tasks;42{43{44static async Task Main(string[] args)45{46using var playwright = await Playwright.CreateAsync();47using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions48{49});50using var context = await browser.NewContextAsync();51var page = await context.NewPageAsync();

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
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.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.