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

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

PageEvaluateAsync

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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(

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PageEvaluateAsync

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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);}");

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PageEvaluateAsync

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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 }

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PageEvaluateAsync

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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 },

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PageEvaluateAsync

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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

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PageEvaluateAsync

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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);

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