How to use PageExposeFunctionAsync method of Microsoft.Playwright.Tests.PageEvaluateTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageEvaluateTests.PageExposeFunctionAsync

PageExposeFunctionAsync

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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-evaluate.spec.ts", "should work")]10 [Test, Timeout(TestConstants.DefaultTestTimeout)]11 public async Task ShouldWork()12 {13 var result = await Page.EvaluateAsync<int>("() => 7 * 3");14 Assert.AreEqual(21, result);15 }16 }17}18{19 using System;20 using System.Collections.Generic;21 using System.Text;22 using System.Threading.Tasks;23 using Microsoft.Playwright.NUnit;24 using NUnit.Framework;25 {26 [PlaywrightTest("page-evaluate.spec.ts", "should transfer NaN")]27 [Test, Timeout(TestConstants.DefaultTestTimeout)]28 public async Task ShouldTransferNaN()29 {30 var result = await Page.EvaluateAsync<double>("a => a", double.NaN);31 Assert.True(double.IsNaN(result));32 }33 }34}35{36 using System;37 using System.Collections.Generic;38 using System.Text;39 using System.Threading.Tasks;40 using Microsoft.Playwright.NUnit;41 using NUnit.Framework;42 {43 [PlaywrightTest("page-evaluate.spec.ts", "should transfer -0")]44 [Test, Timeout(TestConstants.DefaultTestTimeout)]45 public async Task ShouldTransferNegativeZero()46 {47 var result = await Page.EvaluateAsync<double>("a => a", -0);48 Assert.AreEqual(-0, result);49 }50 }51}52{53 using System;54 using System.Collections.Generic;55 using System.Text;56 using System.Threading.Tasks;57 using Microsoft.Playwright.NUnit;58 using NUnit.Framework;

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PageExposeFunctionAsync

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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;7 using Microsoft.Playwright.NUnit;8 using NUnit.Framework;9 using NUnit.Framework.Interfaces;10 {11 [PlaywrightTest("page-expose-function.spec.ts", "should work")]12 [Test, Timeout(TestConstants.DefaultTestTimeout)]13 public async Task ShouldWork()14 {15 await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);16 var result = await Page.EvaluateAsync<int>("async () => { return await compute(9, 4); }");17 Assert.AreEqual(36, result);18 }19 [PlaywrightTest("page-expose-function.spec.ts", "should work with complex objects")]20 [Test, Timeout(TestConstants.DefaultTestTimeout)]21 public async Task ShouldWorkWithComplexObjects()22 {23 await Page.ExposeFunctionAsync("complexObject", new { foo = "bar!" });24 var result = await Page.EvaluateAsync<string>("async () => { return await complexObject.foo; }");25 Assert.AreEqual("bar!", result);26 }27 [PlaywrightTest("page-expose-function.spec.ts", "should await returned promise")]28 [Test, Timeout(TestConstants.DefaultTestTimeout)]29 public async Task ShouldAwaitReturnedPromise()30 {31 await Page.ExposeFunctionAsync("compute", (int a, int b) => Task.FromResult(a * b));32 var result = await Page.EvaluateAsync<int>("async () => { return await compute(9, 4); }");33 Assert.AreEqual(36, result);34 }35 [PlaywrightTest("page-expose-function.spec.ts", "should work right after framenavigated")]36 [Test, Timeout(TestConstants.DefaultTestTimeout)]37 public async Task ShouldWorkRightAfterFramenavigated()38 {39 await Page.ExposeFunctionAsync("compute", (int a, int b) => Task.FromResult(a * b));40 Page.FrameNavigated += (_, e) => Page.ExposeFunctionAsync("compute", (int a, int b) => Task.FromResult(a * b));41 await Page.GotoAsync(TestConstants.EmptyPage);42 var result = await Page.EvaluateAsync<int>("async () => { return await compute(9, 4); }");

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PageExposeFunctionAsync

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1{2 using System;3 using System.Collections.Generic;4 using System.Linq;5 using System.Text;6 using System.Threading.Tasks;7 using Microsoft.Playwright;8 using NUnit.Framework;9 using NUnit.Framework.Interfaces;10 {11 [PlaywrightTest("page-evaluate.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.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.True(double.IsNaN(result));24 }25 [PlaywrightTest("page-evaluate.spec.ts", "should transfer -0")]26 [Test, Timeout(TestConstants.DefaultTestTimeout)]27 public async Task ShouldTransferNegativeZero()28 {29 var result = await Page.EvaluateAsync<double>("a => a", -0);30 Assert.AreEqual(-0, result);31 }32 [PlaywrightTest("page-evaluate.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.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.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 }, result);52 }53 [PlaywrightTest("page-evaluate.spec.ts", "should transfer arrays as

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PageExposeFunctionAsync

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1var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);2Console.WriteLine(result);3var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);4Console.WriteLine(result);5var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);6Console.WriteLine(result);7var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);8Console.WriteLine(result);9var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);10Console.WriteLine(result);11var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);12Console.WriteLine(result);13var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);14Console.WriteLine(result);15var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);16Console.WriteLine(result);17var result = await Page.ExposeFunctionAsync("add", (int a, int b) => a + b);18Console.WriteLine(result);19var result = await Page.ExposeFunctionAsync("add",

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PageExposeFunctionAsync

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using NUnit.Framework;8{9 [Parallelizable(ParallelScope.Self)]10 {11 [PlaywrightTest("page-evaluate.spec.ts", "should work")]12 [Test, Timeout(TestConstants.DefaultTestTimeout)]13 public async Task ShouldWork()14 {15 await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);16 var result = await Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");17 Assert.AreEqual(36, result);18 }19 [PlaywrightTest("page-evaluate.spec.ts", "should work with handle")]20 [Test, Timeout(TestConstants.DefaultTestTimeout)]21 public async Task ShouldWorkWithHandle()22 {23 await Page.ExposeFunctionAsync("readme", (IJSHandle handle) => handle.AsElement().TextContentAsync());24 var result = await Page.EvaluateAsync<string>("async function() { return await readme(document.body); }");25 Assert.AreEqual("Hello", result);26 }27 [PlaywrightTest("page-evaluate.spec.ts", "should work with complex objects")]28 [Test, Timeout(TestConstants.DefaultTestTimeout)]29 public async Task ShouldWorkWithComplexObjects()30 {31 await Page.ExposeFunctionAsync("complexObject", (object a, object b) => new { a, b });32 var result = await Page.EvaluateAsync<object>("async function() { return await complexObject({foo: 'bar'}, 9); }");33 Assert.AreEqual(new { foo = "bar" }, ((Dictionary<string, object>)result)["a"]);34 Assert.AreEqual(9, ((Dictionary<string, object>)result)["b"]);35 }36 [PlaywrightTest("page-evaluate.spec.ts", "should work with null")]37 [Test, Timeout(TestConstants.DefaultTestTimeout)]38 public async Task ShouldWorkWithNull()39 {40 await Page.ExposeFunctionAsync("complexObject", (object a, object b) => new { a, b });41 var result = await Page.EvaluateAsync<object>("async function() { return await complexObject(null, 9); }");42 Assert.Null(((Dictionary<string,

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Most used method in PageEvaluateTests