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

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

PageExposeFunctionAsync

Using AI Code Generation

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 Xunit;9    using Xunit.Abstractions;10    [Collection(TestConstants.TestFixtureBrowserCollectionName)]11    {12        internal PageExposeFunctionTests(ITestOutputHelper output) : base(output)13        {14        }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 () => compute(9, 4)");19            Assert.Equal(36, result);20        }21        public async Task ShouldWorkWithComplexObjects()22        {23            await Page.ExposeFunctionAsync("complexObject", new { foo = "bar!" });24            var result = await Page.EvaluateAsync<string>("async () => complexObject.foo");25            Assert.Equal("bar!", result);26        }27        public async Task ShouldWorkWithString()28        {29            await Page.ExposeFunctionAsync("foo", "bar");30            var result = await Page.EvaluateAsync<string>("async () => foo");31            Assert.Equal("bar", result);32        }

PageExposeFunctionAsync

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    {10        internal PageExposeFunctionTests(ITestOutputHelper output) : base(output)11        {12        }13        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]14        public async Task ShouldWork()15        {16            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);17            var result = await Page.EvaluateAsync<int>("async function() {" +18                "return await compute(9, 4);" +19            "}");20            Assert.Equal(36, result);21        }22    }23}24using System;25using System.Collections.Generic;26using System.Text;27using System.Threading.Tasks;28using Microsoft.Playwright;29using Xunit;30using Xunit.Abstractions;31{32    {33        internal PageExposeBindingTests(ITestOutputHelper output) : base(output)34        {35        }36        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]37        public async Task ShouldWork()38        {39            await Page.ExposeBindingAsync("compute", (int a, int b) => Task.FromResult((object)(a * b)));40            var result = await Page.EvaluateAsync<int>("async function() {" +41                "return await window.compute(9, 4);" +42            "}");

PageExposeFunctionAsync

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;7    using Microsoft.Playwright.NUnit;8    using NUnit.Framework;9    {10        [PlaywrightTest("page-expose-function.spec.ts", "should work")]11        [Test, Timeout(TestConstants.DefaultTestTimeout)]12        public async Task ShouldWork()13        {14            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);15            Assert.AreEqual(6, await Page.EvaluateAsync<int>("async function(){return await compute(2, 3); }"));16        }17    }18}

PageExposeFunctionAsync

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Linq;5    using System.Text;6    using System.Threading;7    using System.Threading.Tasks;8    using Microsoft.Playwright;9    using Xunit;10    using Xunit.Abstractions;11    {12        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)13        {14        }15        [PlaywrightTest("page-expose-function.spec.ts", "should work")]16        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]17        public async Task ShouldWork()18        {19            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);20            var result = await Page.EvaluateAsync<int>("async () => compute(9, 4)");21            Assert.Equal(36, result);22        }23        [PlaywrightTest("page-expose-function.spec.ts", "should work with complex objects")]24        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]25        public async Task ShouldWorkWithComplexObjects()26        {27            await Page.ExposeFunctionAsync("complexObject", new { foo = "bar!" });28            var result = await Page.EvaluateAsync<string>("async () => complexObject.foo");29            Assert.Equal("bar!", result);30        }31        [PlaywrightTest("page-expose-function.spec.ts", "should work with ElementHandle")]32        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]33        public async Task ShouldWorkWithElementHandle()34        {35            await Page.SetContentAsync("<section>42</section>");36            await Page.ExposeFunctionAsync("getSectionContent", (IElementHandle e) => e.TextContentAsync());37            var result = await Page.EvaluateAsync<string>("async () => getSectionContent(document.querySelector('section'))");38            Assert.Equal("42", result);39        }40        [PlaywrightTest("page-expose-function.spec.ts", "should throw for duplicate registrations")]41        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]42        public async Task ShouldThrowForDuplicateRegistrations()43        {44            await Page.ExposeFunctionAsync("woof", () => { });45            var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => Page.ExposeFunctionAsync("woof", () => { }));46            Assert.Equal("Function \"woof\" has been already

PageExposeFunctionAsync

Using AI Code Generation

1var page = await context.NewPageAsync();2await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));3var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");4Console.WriteLine(result);5var page = await context.NewPageAsync();6await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));7var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");8Console.WriteLine(result);9var page = await context.NewPageAsync();10await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));11var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");12Console.WriteLine(result);13var page = await context.NewPageAsync();14await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));15var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");16Console.WriteLine(result);17var page = await context.NewPageAsync();18await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));19var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");20Console.WriteLine(result);21var page = await context.NewPageAsync();22await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));23var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");24Console.WriteLine(result);

PageExposeFunctionAsync

Using AI Code Generation

1var page = await context.NewPageAsync();2await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));3var result = await page.EvaluateAsync<int>("async () => {\r4  return await compute(9, 4);\r5}");6Console.WriteLine(result);7var page = await context.NewPageAsync();8await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));9var result = await page.EvaluateAsync<int>("async () => {\r10  return await compute(9, 4);\r11}");12Console.WriteLine(result);13var page = await context.NewPageAsync();14await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));15var result = await page.EvaluateAsync<int>("async () => {\r16  return await compute(9, 4);\r17}");18Console.WriteLine(result);19var page = await context.NewPageAsync();20await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));21var result = await page.EvaluateAsync<int>("async () => {\r22  return await compute(9, 4);\r23}");24Console.WriteLine(result);25var page = await context.NewPageAsync();26await page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));27var result = await page.EvaluateAsync<int>("async () => {\r28  return await compute(9, 4);\r29}");30Console.WriteLine(result);31var page = await context.NewPageAsync();32await page.ExposeFunctionAsync("compute", (Func<int, int

PageExposeFunctionAsync

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright.Tests;7using NUnit.Framework;8using PlaywrightSharp;9using PlaywrightSharp.Tests.Attributes;10using PlaywrightSharp.Tests.BaseTests;11using PlaywrightSharp.Tests.Helpers;12using PlaywrightSharp.Tests.TestServer;13{14    [Parallelizable(ParallelScope.Self)]15    {16        [PlaywrightTest("page-expose-function.spec.ts", "should work")]17        [Test, Timeout(TestConstants.DefaultTestTimeout)]18        public async Task ShouldWork()19        {20            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);21            var result = await Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }");22            Assert.AreEqual(36, result);23        }24        [PlaywrightTest("page-expose-function.spec.ts", "should work on frames")]25        [Test, Timeout(TestConstants.DefaultTestTimeout)]26        public async Task ShouldWorkOnFrames()27        {28            await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);29            await Page.GotoAsync(TestConstants.ServerUrl + "/frames/nested-frames.html");30            var frame = Page.FirstChildFrame().FirstChildFrame().FirstChildFrame();31            var result = await frame.EvaluateAsync<int>("async function() { return await compute(9, 4); }");32            Assert.AreEqual(36, result);33        }34        [PlaywrightTest("page-expose-function.spec.ts", "should throw in secondary context")]35        [Test, Timeout(TestConstants.DefaultTestTimeout)]36        public async Task ShouldThrowInSecondaryContext()37        {38            await Page.GotoAsync(TestConstants.EmptyPage);39            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightSharpException>(() => Page.MainFrame.EvaluateAsync(@"() => {40                const iframe = document.createElement('iframe');41                document.body.appendChild(iframe);42                return iframe.contentWindow['compute'](9, 4);43            }"));44            StringAssert.Contains("Function \"compute\" has not been registered", exception.Message);45        }46        [PlaywrightTest("page-expose-function.spec.ts", "should survive cross-process navigation")]47        [Test, Timeout(TestConstants.DefaultTestTimeout)]

PageExposeFunctionAsync

Using AI Code Generation

1Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()2Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()3Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()4Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()5Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()6Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()7Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()8Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()9Microsoft.Playwright.Tests.PageExposeFunctionTests.PageExposeFunctionAsync()

Playwright tutorial

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