KaneAI - World’s First E2E Software Testing Agent.Book a Demo 
How to use BrowserContextExposeFunctionTests class of Microsoft.Playwright.Tests package
Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.BrowserContextExposeFunctionTests
BrowserContextExposeFunctionTests.cs
Source:BrowserContextExposeFunctionTests.cs 
...27using Microsoft.Playwright.NUnit;28using NUnit.Framework;29namespace Microsoft.Playwright.Tests30{31 public class BrowserContextExposeFunctionTests : ContextTestEx32 {33 [PlaywrightTest("browsercontext-expose-function.spec.ts", "expose binding should work")]34 public async Task ExposeBindingShouldWork()35 {36 BindingSource bindingSource = null;37 await Context.ExposeBindingAsync("add", (BindingSource source, int a, int b) =>38 {39 bindingSource = source;40 return a + b;41 });42 var page = await Context.NewPageAsync();43 int result = await page.EvaluateAsync<int>(@"async function() {44 return await add(5, 6);45 }");...
BrowserContextExposeFunctionTests
Using AI Code Generation
1using Microsoft.Playwright.Tests;2{3 {4 public 5(ITestOutputHelper output) : base(output)5 {6 }7 }8}9using Microsoft.Playwright.Tests;10{11 {12 public 6(ITestOutputHelper output) : base(output)13 {14 }15 }16}17using Microsoft.Playwright.Tests;18{19 {20 public 7(ITestOutputHelper output) : base(output)21 {22 }23 }24}25using Microsoft.Playwright.Tests;26{27 {28 public 8(ITestOutputHelper output) : base(output)29 {30 }31 }32}33using Microsoft.Playwright.Tests;34{35 {36 public 9(ITestOutputHelper output) : base(output)37 {38 }39 }40}41using Microsoft.Playwright.Tests;42{43 {44 public 10(ITestOutputHelper output) : base(output)45 {46 }47 }48}49using Microsoft.Playwright.Tests;50{51 {52 public 11(ITestOutputHelper output) : base(output)53 {54 }55 }56}
BrowserContextExposeFunctionTests
Using AI Code Generation
1using Microsoft.Playwright.Tests;2BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();3browserContextExposeFunctionTests.ExposeBindingHandle();4using Microsoft.Playwright.Tests;5BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();6browserContextExposeFunctionTests.ExposeBindingHandleShouldThrowWhenProtocolError();7using Microsoft.Playwright.Tests;8BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();9browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();10using Microsoft.Playwright.Tests;11BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();12browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();13using Microsoft.Playwright.Tests;14BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();15browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();16using Microsoft.Playwright.Tests;17BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();18browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();19using Microsoft.Playwright.Tests;20BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();21browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();22using Microsoft.Playwright.Tests;23BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();24browserContextExposeFunctionTests.ExposeBindingHandleShouldWorkWithDifferentHandleTypes();
BrowserContextExposeFunctionTests
Using AI Code Generation
1using Microsoft.Playwright.Tests;2using System;3using System.Collections.Generic;4using System.Threading.Tasks;5using Xunit;6using Xunit.Abstractions;7{8 private readonly ITestOutputHelper output;9 public BrowserContextExposeFunctionTests(ITestOutputHelper output)10 {11 this.output = output;12 }13 public async Task ShouldWork()14 {15 using var playwright = await Playwright.CreateAsync();16 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions17 {18 });19 var page = await browser.NewPageAsync();20 await page.ExposeFunctionAsync("compute", (int a, int b) =>21 {22 return a * b;23 });24 var result = await page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");25 Assert.Equal(36, result);26 }27 public async Task ShouldWorkWithHandles()28 {29 using var playwright = await Playwright.CreateAsync();30 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions31 {32 });33 var page = await browser.NewPageAsync();34 await page.ExposeFunctionAsync("getElementAttribute", (ElementHandle element, string attr) =>35 {36 return element.EvaluateAsync<string>(@"e => e.getAttribute(attr)", attr);37 });38 var result = await page.EvaluateAsync<string>("async function() { return await getElementAttribute(document.body, 'foo'); }");39 Assert.Equal("bar", result);40 }41 public async Task ShouldAwaitReturnedPromise()42 {43 using var playwright = await Playwright.CreateAsync();44 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions45 {46 });47 var page = await browser.NewPageAsync();48 await page.ExposeFunctionAsync("compute", (int a, int b) =>49 {50 return Task.FromResult(a * b);51 });52 var result = await page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");53 Assert.Equal(36, result);54 }55 public async Task ShouldWorkOnFrames()56 {57 using var playwright = await Playwright.CreateAsync();
BrowserContextExposeFunctionTests
Using AI Code Generation
1using Microsoft.Playwright.Tests;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 BrowserContextExposeFunctionTests browserContextExposeFunctionTests = new BrowserContextExposeFunctionTests();9 await browserContextExposeFunctionTests.ExposeBindingAsync();10 }11 }12}
BrowserContextExposeFunctionTests
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using Microsoft.Playwright.Tests;4using NUnit.Framework;5using NUnit.Framework.Interfaces;6{7 {8 private static BrowserContext _context;9 private static Page _page;10 private static string _url;11 public async Task BeforeAll()12 {13 _context = await Playwright.CreateBrowserContextAsync();14 _page = await _context.NewPageAsync();15 }16 public async Task AfterAll()17 {18 await _context.CloseAsync();19 }20 public async Task AfterEach()21 {22 if (TestContext.CurrentContext.Result.Outcome.Status == TestStatus.Failed)23 {24 await TestHelper.TakeScreenshot(_page);25 }26 await _page.CloseAsync();27 _page = await _context.NewPageAsync();28 }29 public async Task ShouldWork()30 {31 await _context.ExposeBindingAsync("add", (BindingSource source, int a, int b) => a + b);32 await _page.GotoAsync(_url);33 var result = await _page.EvaluateAsync<int>("async function() { return await add(5, 6); }");34 Assert.AreEqual(11, result);35 }36 public async Task ShouldWorkWithHandle()37 {38 await _context.ExposeBindingAsync("wrapper", (BindingSource source, ElementHandle handle) => handle);39 await _page.GotoAsync(_url);40 var result = await _page.EvaluateAsync<ElementHandle>("async function() { return await wrapper(document.body); }");41 Assert.NotNull(result);42 }43 public async Task ShouldWorkWithComplexObjects()44 {45 await _context.ExposeBindingAsync("complexObject", (BindingSource source, object obj) => obj);46 await _page.GotoAsync(_url);47 var result = await _page.EvaluateAsync<object>("async function() { return await complexObject({foo: 'bar'}); }");48 Assert.AreEqual(new { foo = "bar" }, result);49 }50 public async Task ShouldAwaitReturnedPromise()51 {52 await _context.ExposeBindingAsync("add", (BindingSource source,
BrowserContextExposeFunctionTests
Using AI Code Generation
1using Microsoft.Playwright.Tests;2BrowserContextExposeFunctionTests test = new BrowserContextExposeFunctionTests();3await test.ExposeBindingHandleShouldWork();4using Microsoft.Playwright.Tests;5await BrowserContextExposeBindingHandleShouldWork();6using Microsoft.Playwright.Tests;7await BrowserContextExposeBindingHandleShouldWork();8using Microsoft.Playwright.Tests;9await BrowserContextExposeBindingHandleShouldWork();10using Microsoft.Playwright.Tests;11await BrowserContextExposeBindingHandleShouldWork();12using Microsoft.Playwright.Tests;13await BrowserContextExposeBindingHandleShouldWork();14using Microsoft.Playwright.Tests;15await BrowserContextExposeBindingHandleShouldWork();16using Microsoft.Playwright.Tests;17await BrowserContextExposeBindingHandleShouldWork();18using Microsoft.Playwright.Tests;19await BrowserContextExposeBindingHandleShouldWork();20using Microsoft.Playwright.Tests;21await BrowserContextExposeBindingHandleShouldWork();22using Microsoft.Playwright.Tests;23await BrowserContextExposeBindingHandleShouldWork();24using Microsoft.Playwright.Tests;25await BrowserContextExposeBindingHandleShouldWork();
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.
Run Playwright-dotnet automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used methods in BrowserContextExposeFunctionTests
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
