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

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

PageExposeFunctionTests.cs

Source:PageExposeFunctionTests.cs

...28using NUnit.Framework;29namespace Microsoft.Playwright.Tests30{31    ///<playwright-file>page-expose-function.spec.ts</playwright-file>32    public class PageExposeFunctionTests : PageTestEx33    {34        [PlaywrightTest("page-expose-function.spec.ts", "exposeBinding should work")]35        public async Task ExposeBindingShouldWork()36        {37            BindingSource bindingSource = null;38            await Page.ExposeBindingAsync("add", (BindingSource source, int a, int b) =>39            {40                bindingSource = source;41                return a + b;42            });43            int result = await Page.EvaluateAsync<int>("async function () { return add(5, 6); }");44            Assert.AreEqual(Context, bindingSource.Context);45            Assert.AreEqual(Page, bindingSource.Page);46            Assert.AreEqual(Page.MainFrame, bindingSource.Frame);47            Assert.AreEqual(11, result);48        }49        [PlaywrightTest("page-expose-function.spec.ts", "should work")]50        public async Task ShouldWork()51        {52            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);53            int result = await Page.EvaluateAsync<int>(@"async function() {54                return await compute(9, 4);55            }");56            Assert.AreEqual(36, result);57        }58        [PlaywrightTest("page-expose-function.spec.ts", "should work with handles and complex objects")]59        public async Task ShouldWorkWithHandlesAndComplexObjects()60        {61            var fooHandle = await Page.EvaluateHandleAsync(@"() => {62                window['fooValue'] = { bar: 2 };63                return window['fooValue'];64            }");65            await Page.ExposeFunctionAsync("handle", () => new[] { new { foo = fooHandle } });66            Assert.True(await Page.EvaluateAsync<bool>(@"async function() {67                const value = await window['handle']();68                const [{ foo }] = value;69                return foo === window['fooValue'];70            }"));71        }72        [PlaywrightTest("page-expose-function.spec.ts", "should throw exception in page context")]73        public async Task ShouldThrowExceptionInPageContext()74        {75            await Page.ExposeFunctionAsync("woof", (System.Action)(() =>76            {77                throw new PlaywrightException("WOOF WOOF");78            }));79            var result = await Page.EvaluateAsync<JsonElement>(@"async () => {80                try81                {82                    await woof();83                }84                catch (e)85                {86                    return { message: e.message, stack: e.stack};87                }88            }");89            Assert.AreEqual("WOOF WOOF", result.GetProperty("message").GetString());90            StringAssert.Contains(nameof(PageExposeFunctionTests), result.GetProperty("stack").GetString());91        }92        [PlaywrightTest("page-expose-function.spec.ts", @"should support throwing ""null""")]93        public async Task ShouldSupportThrowingNull()94        {95            await Page.ExposeFunctionAsync("woof", () =>96            {97                throw null;98            });99            var result = await Page.EvaluateAsync(@"async () => {100                try {101                    await window['woof']();102                } catch (e) {103                    return e;104                }...

PageExposeFunctionTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PageExposeFunctionTests obj = new PageExposeFunctionTests();3await obj.PageExposeFunctionAsync();4using Microsoft.Playwright.Tests;5PageExposeFunctionTests obj = new PageExposeFunctionTests();6await obj.PageExposeFunctionAsync();7using Microsoft.Playwright.Tests;8PageExposeFunctionTests obj = new PageExposeFunctionTests();9await obj.PageExposeFunctionAsync();10using Microsoft.Playwright.Tests;11PageExposeFunctionTests obj = new PageExposeFunctionTests();12await obj.PageExposeFunctionAsync();13using Microsoft.Playwright.Tests;14PageExposeFunctionTests obj = new PageExposeFunctionTests();15await obj.PageExposeFunctionAsync();16using Microsoft.Playwright.Tests;17PageExposeFunctionTests obj = new PageExposeFunctionTests();18await obj.PageExposeFunctionAsync();19using Microsoft.Playwright.Tests;20PageExposeFunctionTests obj = new PageExposeFunctionTests();21await obj.PageExposeFunctionAsync();22using Microsoft.Playwright.Tests;23PageExposeFunctionTests obj = new PageExposeFunctionTests();24await obj.PageExposeFunctionAsync();25using Microsoft.Playwright.Tests;26PageExposeFunctionTests obj = new PageExposeFunctionTests();27await obj.PageExposeFunctionAsync();28using Microsoft.Playwright.Tests;29PageExposeFunctionTests obj = new PageExposeFunctionTests();30await obj.PageExposeFunctionAsync();31using Microsoft.Playwright.Tests;32PageExposeFunctionTests obj = new PageExposeFunctionTests();

PageExposeFunctionTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using System;3using System.Collections.Generic;4using System.Text;5using System.Threading.Tasks;6using Xunit;7using Xunit.Abstractions;8{9    {10        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)11        {12        }13        public async Task ShouldWork()14        {15            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);16            int result = await Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");17            Assert.Equal(36, result);18        }19        public async Task ShouldWorkWithHandles()20        {21            await Page.ExposeFunctionAsync("readme", (IElementHandle element) => element.InnerHTMLAsync());22            var content = await Page.EvaluateAsync<string>("async function() { return await readme(document.body); }");23            Assert.Equal("<div>hello</div>", content);24        }25        public async Task ShouldAwaitReturnedPromise()26        {27            await Page.ExposeFunctionAsync("compute", (int a, int b) => Task.FromResult(a * b));28            int result = await Page.EvaluateAsync<int>("async function() { return await compute(3, 5); }");29            Assert.Equal(15, result);30        }31        public async Task ShouldWorkOnFrames()32        {33            await Page.GotoAsync(Server.Prefix + "/frames/nested-frames.html");34            await Page.ExposeFunctionAsync("computeInFrame", (int a, int b) => a * b);35            var frame = Page.FirstChildFrame();36            var result = await frame.EvaluateAsync<int>("async function() { return await computeInFrame(3, 5); }");37            Assert.Equal(15, result);38        }39        public async Task ShouldWorkAfterCrossSiteNavigation()40        {41            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);42            await Page.GotoAsync(Server.CrossProcessPrefix + "/empty.html");43            int result = await Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");44            Assert.Equal(36, result);45        }

PageExposeFunctionTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PageExposeFunctionTests p = new PageExposeFunctionTests();3p.PageExposeFunctionAsync();4using Microsoft.Playwright.Tests;5PageExposeFunctionTests p = new PageExposeFunctionTests();6p.PageExposeFunctionAsync();7using Microsoft.Playwright.Tests;8PageExposeFunctionTests p = new PageExposeFunctionTests();9p.PageExposeFunctionAsync();10using Microsoft.Playwright.Tests;11PageExposeFunctionTests p = new PageExposeFunctionTests();12p.PageExposeFunctionAsync();13using Microsoft.Playwright.Tests;14PageExposeFunctionTests p = new PageExposeFunctionTests();15p.PageExposeFunctionAsync();16using Microsoft.Playwright.Tests;17PageExposeFunctionTests p = new PageExposeFunctionTests();18p.PageExposeFunctionAsync();19using Microsoft.Playwright.Tests;20PageExposeFunctionTests p = new PageExposeFunctionTests();21p.PageExposeFunctionAsync();22using Microsoft.Playwright.Tests;23PageExposeFunctionTests p = new PageExposeFunctionTests();24p.PageExposeFunctionAsync();25using Microsoft.Playwright.Tests;26PageExposeFunctionTests p = new PageExposeFunctionTests();27p.PageExposeFunctionAsync();28using Microsoft.Playwright.Tests;29PageExposeFunctionTests p = new PageExposeFunctionTests();30p.PageExposeFunctionAsync();31using Microsoft.Playwright.Tests;32PageExposeFunctionTests p = new PageExposeFunctionTests();33p.PageExposeFunctionAsync();

PageExposeFunctionTests

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PageExposeFunctionTests obj = new PageExposeFunctionTests();3obj.PageExposeFunctionTests();4using Microsoft.Playwright.Tests;5PageExposeFunctionTests obj = new PageExposeFunctionTests();6obj.PageExposeFunctionTests();7using Microsoft.Playwright.Tests;8PageExposeFunctionTests obj = new PageExposeFunctionTests();9obj.PageExposeFunctionTests();10using Microsoft.Playwright.Tests;11PageExposeFunctionTests obj = new PageExposeFunctionTests();12obj.PageExposeFunctionTests();13using Microsoft.Playwright.Tests;14PageExposeFunctionTests obj = new PageExposeFunctionTests();15obj.PageExposeFunctionTests();16using Microsoft.Playwright.Tests;17PageExposeFunctionTests obj = new PageExposeFunctionTests();18obj.PageExposeFunctionTests();19using Microsoft.Playwright.Tests;20PageExposeFunctionTests obj = new PageExposeFunctionTests();21obj.PageExposeFunctionTests();22using Microsoft.Playwright.Tests;23PageExposeFunctionTests obj = new PageExposeFunctionTests();24obj.PageExposeFunctionTests();25using Microsoft.Playwright.Tests;26PageExposeFunctionTests obj = new PageExposeFunctionTests();27obj.PageExposeFunctionTests();28using Microsoft.Playwright.Tests;29PageExposeFunctionTests obj = new PageExposeFunctionTests();30obj.PageExposeFunctionTests();31using Microsoft.Playwright.Tests;32PageExposeFunctionTests obj = new PageExposeFunctionTests();33obj.PageExposeFunctionTests();

PageExposeFunctionTests

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;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 BrowserTypeLaunchOptions { Headless = false });11            var context = await browser.NewContextAsync();12            var page = await context.NewPageAsync();13            var pageExposeFunctionTests = new PageExposeFunctionTests(page);14            await pageExposeFunctionTests.ExposeBindingHandle();15            await page.WaitForLoadStateAsync();16        }17    }18}19using Microsoft.Playwright;20using Microsoft.Playwright.Tests;21using System;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            using var playwright = await Playwright.CreateAsync();28            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });29            var context = await browser.NewContextAsync();30            var page = await context.NewPageAsync();31            var pageExposeFunctionTests = new PageExposeFunctionTests(page);32            await pageExposeFunctionTests.ExposeBindingHandlePromise();33            await page.WaitForLoadStateAsync();34        }35    }36}37using Microsoft.Playwright;38using Microsoft.Playwright.Tests;39using System;40using System.Threading.Tasks;41{42    {43        static async Task Main(string[] args)44        {45            using var playwright = await Playwright.CreateAsync();46            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });

PageExposeFunctionTests

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            using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            using var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await PageExposeFunctionTests.TestPageExposeFunctionAsync(page);15        }16    }17}18using Microsoft.Playwright;19using Microsoft.Playwright.Tests;20using System.Threading.Tasks;21{22    {23        static async Task Main(string[] args)24        {25            using var playwright = await Playwright.CreateAsync();26            using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions27            {28            });29            using var context = await browser.NewContextAsync();30            var page = await context.NewPageAsync();31            await PageExposeFunctionTests.TestPageExposeFunctionAsync(page);32        }33    }34}35using Microsoft.Playwright;36using Microsoft.Playwright.Tests;37using System.Threading.Tasks;38{39    {40        static async Task Main(string[] args)41        {42            using var playwright = await Playwright.CreateAsync();43            using var browser = await playwright.Chromium.LaunchAsync(new BrowserType

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.