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How to use PageEvaluateAsync method of Microsoft.Playwright.Tests.PageExposeFunctionTests class

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

PageEvaluateAsync

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Text;5    using System.Threading.Tasks;6    using Microsoft.Playwright.NUnit;7    using NUnit.Framework;8    {9        [PlaywrightTest("page-expose-function.spec.ts", "should work")]10        [Test, Timeout(TestConstants.DefaultTestTimeout)]11        public async Task ShouldWork()12        {13            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);14            var result = await Page.EvaluateAsync<int>("async () => compute(9, 4)");15            Assert.AreEqual(36, result);16        }17    }18}19{20    using System;21    using System.Collections.Generic;22    using System.Text;23    using System.Threading.Tasks;24    using NUnit.Framework;25    [Parallelizable(ParallelScope.Self)]26    {27        [PlaywrightTest("page-evaluate.spec.ts", "should work")]28        [Test, Timeout(TestConstants.DefaultTestTimeout)]29        public async Task ShouldWork()30        {31            var result = await Page.EvaluateAsync<int>("() => 7 * 3");32            Assert.AreEqual(21, result);33        }34    }35}36{37    using System;38    using System.Collections.Generic;39    using System.Text;40    using System.Threading.Tasks;41    using NUnit.Framework;42    [Parallelizable(ParallelScope.Self)]43    {44        public async Task ShouldWork()45        {46            await Page.GoToAsync(TestConstants.ServerUrl + "/tamperable.html");47            var result = await Page.EvaluateAsync<int>("() => 7 * 3");48            Assert.AreEqual(21, result);49        }50    }51}52{53    using System;54    using System.Collections.Generic;55    using System.Text;56    using System.Threading.Tasks;57    using NUnit.Framework;58    [Parallelizable(

PageEvaluateAsync

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright;6using Xunit;7using Xunit.Abstractions;8{9    [Trait("Category", "firefox")]10    {11        internal PageExposeFunctionTests(ITestOutputHelper output) : base(output)12        {13        }14        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]15        public async Task ShouldWork()16        {17            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);18            var result = await Page.EvaluateAsync<int>("async function(){return await compute(9, 4);}");19            Assert.Equal(36, result);20        }21        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]22        public async Task ShouldWorkWithComplexObjects()23        {24            await Page.ExposeFunctionAsync("complexObject", new { foo = "bar!" });25            var result = await Page.EvaluateAsync<string>("async function(){return await complexObject.foo;}");26            Assert.Equal("bar!", result);27        }28        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]29        public async Task ShouldWorkWithElementHandle()30        {31            await Page.SetContentAsync("<section>42</section>");32            await Page.ExposeFunctionAsync("getSection", () => Page.QuerySelectorAsync("section"));33            var result = await Page.EvaluateAsync<int>("async function(){return await getSection().then(e => e.textContent);}");

PageEvaluateAsync

Using AI Code Generation

11 using System;22 using System.Collections.Generic;33 using System.Text;44 using System.Threading.Tasks;55 using Microsoft.Playwright;66 using Microsoft.Playwright.Tests;77 using Microsoft.Playwright.Tests.Attributes;88 using Microsoft.Playwright.Tests.BaseTests;99 using NUnit.Framework;1010 using NUnit.Framework.Interfaces;1113 {1214     [Parallelizable(ParallelScope.Self)]1316     {1417         [PlaywrightTest("page-evaluate-async.spec.ts", "should work")]1518         [Test, Timeout(TestConstants.DefaultTestTimeout)]1619         public async Task ShouldWork()1720         {1821             var result = await Page.EvaluateAsync<int>("() => 7 * 3");1922             Assert.AreEqual(21, result);2023         }2125         [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer NaN")]2226         [Test, Timeout(TestConstants.DefaultTestTimeout)]2327         public async Task ShouldTransferNaN()2428         {2529             var result = await Page.EvaluateAsync<double>("a => a", double.NaN);2630             Assert.AreEqual(double.NaN, result);2731         }2833         [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer -0")]2934         [Test, Timeout(TestConstants.DefaultTestTimeout)]3035         public async Task ShouldTransferNegative0()3136         {3237             var result = await Page.EvaluateAsync<double>("a => a", -0);3338             Assert.AreEqual(-0, result);3439         }3541         [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer Infinity")]3642         [Test, Timeout(TestConstants.DefaultTestTimeout)]3743         public async Task ShouldTransferInfinity()3844         {3945             var result = await Page.EvaluateAsync<double>("a => a", double.PositiveInfinity);4046             Assert.AreEqual(double.PositiveInfinity, result);4147         }4249         [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer -Infinity")]4350         [Test, Timeout(TestConstants.DefaultTestTimeout)]4451         public async Task ShouldTransferNegativeInfinity()4552         {4653             var result = await Page.EvaluateAsync<double>("a => a", double.NegativeInfinity);4754             Assert.AreEqual(double.NegativeInfinity, result);4855         }

PageEvaluateAsync

Using AI Code Generation

1{2    using System;3    using System.Threading.Tasks;4    using Microsoft.Playwright;5    using Microsoft.Playwright.Core;6    using Microsoft.Playwright.Helpers;7    using NUnit.Framework;8    using NUnit.Framework.Interfaces;9    [Parallelizable(ParallelScope.Self)]10    {11        [PlaywrightTest("page-evaluate-async.spec.ts", "should work")]12        [Test, Timeout(TestConstants.DefaultTestTimeout)]13        public async Task ShouldWork()14        {15            var result = await Page.EvaluateAsync<int>("() => 7 * 3");16            Assert.AreEqual(21, result);17        }18        [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer NaN")]19        [Test, Timeout(TestConstants.DefaultTestTimeout)]20        public async Task ShouldTransferNaN()21        {22            var result = await Page.EvaluateAsync<double>("a => a", double.NaN);23            Assert.AreEqual(double.NaN, result);24        }25        [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer -0")]26        [Test, Timeout(TestConstants.DefaultTestTimeout)]27        public async Task ShouldTransferNegative0()28        {29            var result = await Page.EvaluateAsync<double>("a => a", -0);30            Assert.AreEqual(-0, result);31        }32        [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer Infinity")]33        [Test, Timeout(TestConstants.DefaultTestTimeout)]34        public async Task ShouldTransferInfinity()35        {36            var result = await Page.EvaluateAsync<double>("a => a", double.PositiveInfinity);37            Assert.AreEqual(double.PositiveInfinity, result);38        }39        [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer -Infinity")]40        [Test, Timeout(TestConstants.DefaultTestTimeout)]41        public async Task ShouldTransferNegativeInfinity()42        {43            var result = await Page.EvaluateAsync<double>("a => a", double.NegativeInfinity);44            Assert.AreEqual(double.NegativeInfinity, result);45        }46        [PlaywrightTest("page-evaluate-async.spec.ts", "should transfer arrays")]47        [Test, Timeout(TestConstants.DefaultTestTimeout)]48        public async Task ShouldTransferArrays()49        {50            var result = await Page.EvaluateAsync<int[]>("a => a", new[] { 1, 2, 3 });51            Assert.AreEqual(new[] { 1, 2, 3 },

PageEvaluateAsync

Using AI Code Generation

1var playwright = await Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var context = await browser.NewContextAsync();4var page = await context.NewPageAsync();5await page.ExposeFunctionAsync("add", (int a, int b) => a + b);6var result = await page.EvaluateAsync<int>("async () => add(5, 6)");7await browser.CloseAsync();8var playwright = await Playwright.CreateAsync();9var browser = await playwright.Chromium.LaunchAsync();10var context = await browser.NewContextAsync();11var page = await context.NewPageAsync();12await page.ExposeFunctionAsync("add", (int a, int b) => a + b);13var result = await page.EvaluateAsync<int>("async () => add(5, 6)");14await browser.CloseAsync();15var playwright = await Playwright.CreateAsync();16var browser = await playwright.Chromium.LaunchAsync();17var context = await browser.NewContextAsync();18var page = await context.NewPageAsync();19await page.ExposeFunctionAsync("add", (int a, int b) => a + b);20var result = await page.EvaluateAsync<int>("async () => add(5, 6)");21await browser.CloseAsync();22var playwright = await Playwright.CreateAsync();23var browser = await playwright.Chromium.LaunchAsync();24var context = await browser.NewContextAsync();25var page = await context.NewPageAsync();26await page.ExposeFunctionAsync("add", (int a, int b) => a + b);27var result = await page.EvaluateAsync<int>("async () => add(5, 6

PageEvaluateAsync

Using AI Code Generation

1var page = await context.NewPageAsync();2var result = await page.EvaluateAsync("function() { return this; }");3Console.WriteLine(result);4var page = await context.NewPageAsync();5var result = await page.EvaluateAsync("function() { return 5; }");6Console.WriteLine(result);7var page = await context.NewPageAsync();8var result = await page.EvaluateAsync("function() { return Promise.resolve(5); }");9Console.WriteLine(result);10var page = await context.NewPageAsync();11var result = await page.EvaluateAsync("function() { return window; }");12Console.WriteLine(result);13var page = await context.NewPageAsync();14var result = await page.EvaluateAsync("function() { return document; }");15Console.WriteLine(result);16var page = await context.NewPageAsync();17var result = await page.EvaluateAsync("function() { return this === window; }");18Console.WriteLine(result);

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.
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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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