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

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

PageExposeFunctionTests.cs

Source:PageExposeFunctionTests.cs

...221            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.ExposeFunctionAsync("foo", () => { }));222            Assert.AreEqual("Function \"foo\" has been already registered", exception.Message);223        }224        [PlaywrightTest]225        public async Task ShouldReturnNullForTask()226        {227            await Page.ExposeFunctionAsync("compute", () => Task.CompletedTask);228            await Page.GotoAsync(Server.EmptyPage);229            var result = await Page.EvaluateAsync(@"async function() {230                return await compute();231            }");232            Assert.IsNull(result);233        }234        [PlaywrightTest]235        public async Task ShouldReturnNullForTaskDelay()236        {237            await Page.ExposeFunctionAsync("compute", () => Task.Delay(100));238            await Page.GotoAsync(Server.EmptyPage);239            var result = await Page.EvaluateAsync(@"async function() {240                return await compute();241            }");242            Assert.IsNull(result);243        }244        internal class ComplexObject245        {246            public int x { get; set; }247        }248    }249}...

ShouldReturnNullForTask

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Playwright.Tests;3using Xunit;4using Xunit.Abstractions;5{6    {7        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)8        {9        }10        public async Task ShouldReturnNullForTask()11        {12            await Page.ExposeFunctionAsync("woof", () => Task.FromResult<object>(null));13            Assert.Null(await Page.EvaluateAsync("woof"));14        }15    }16}17using System.Threading.Tasks;18using Microsoft.Playwright.Tests;19using Xunit;20using Xunit.Abstractions;21{22    {23        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)24        {25        }26        public async Task ShouldReturnNullForTask()27        {28            await Page.ExposeFunctionAsync("woof", () => Task.FromResult<object>(null));29            Assert.Null(await Page.EvaluateAsync("woof"));30        }31    }32}33using System.Threading.Tasks;34using Microsoft.Playwright.Tests;35using Xunit;36using Xunit.Abstractions;37{38    {39        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)40        {41        }42        public async Task ShouldReturnNullForTask()43        {44            await Page.ExposeFunctionAsync("woof", () => Task.FromResult<object>(null));45            Assert.Null(await Page.EvaluateAsync("woof"));46        }47    }48}49using System.Threading.Tasks;50using Microsoft.Playwright.Tests;51using Xunit;52using Xunit.Abstractions;53{54    {55        public PageExposeFunctionTests(ITestOutputHelper

ShouldReturnNullForTask

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Helpers;8using Microsoft.Playwright.Tests.BaseTests;9using Microsoft.Playwright.Tests.Helpers;10using Microsoft.Playwright.Transport.Channels;11using Microsoft.Playwright.Transport.Protocol;12using NUnit.Framework;13using PlaywrightSharp.Tests.BaseTests;14using PlaywrightSharp.Tests.Helpers;15{16    [Parallelizable(ParallelScope.Self)]17    {18        public async Task ShouldReturnNullForTask()19        {20            await Page.ExposeFunctionAsync("compute", () => Task.FromResult(8 * 7));21            var result = await Page.EvaluateAsync<int?>("async () => compute()");22            Assert.AreEqual(56, result);23        }24    }25}

ShouldReturnNullForTask

Using AI Code Generation

1using System;2using System.Runtime.CompilerServices;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5{6    {7        public PageExposeFunctionTests()8        {9        }10        public async void ShouldReturnNullForTask()11        {12            var page = await PlaywrightSharp.Playwright.LaunchAsync().NewPageAsync();13            await page.ExposeFunctionAsync("woof", async () => await Task.FromResult(null));14            var result = await page.EvaluateAsync("async () => {15                return await woof();16            }");17            Assert.Null(result);18        }19    }20}21{22    {23        public PageExposeFunctionTests()24        {25        }26        public async void ShouldReturnNullForTask()27        {28            var page = await PlaywrightSharp.Playwright.LaunchAsync().NewPageAsync();29            await page.ExposeFunctionAsync("woof", async () => await Task.FromResult(null));30            var result = await page.EvaluateAsync("async () => {31                return await woof();32            }");33            Assert.Null(result);34        }35    }36}

ShouldReturnNullForTask

Using AI Code Generation

1var result = await Page.ExposeFunctionAsync("compute", async (int a, int b) => a * b);2await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");3var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");4var result = await Page.ExposeFunctionAsync("compute", async (int a, int b) => a * b);5await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");6var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");7var result = await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);8await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");9var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");10var result = await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);11await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");12var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");13var result = await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);14await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");15var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");16var result = await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);17await Page.GotoAsync(Server.Prefix + "/playwright/expose_function.html");18var result = await Page.EvaluateAsync<int>("() => compute(9, 4)");

ShouldReturnNullForTask

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4using Xunit;5using Xunit.Abstractions;6{7    [Collection(TestConstants.TestFixtureBrowserCollectionName)]8    {9        public PageExposeFunctionTests(ITestOutputHelper output) : base(output)10        {11        }12        [PlaywrightTest("page-expose-function.spec.ts", "should return null for successful Promise")]13        [Fact(Timeout = TestConstants.DefaultTestTimeout)]14        public async Task ShouldReturnNullForTask()15        {16            await Page.ExposeFunctionAsync("callController", () => Task.CompletedTask);17            var result = await Page.EvaluateAsync("callController()");18            Assert.Null(result);19        }20    }21}

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