How to use pageExposeFunctionAsync method of Microsoft.Playwright.Tests.BrowserContextExposeFunctionTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.BrowserContextExposeFunctionTests.pageExposeFunctionAsync

pageExposeFunctionAsync

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1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using NUnit.Framework;6{7 {8 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work")]9 [Test, Timeout(TestConstants.DefaultTestTimeout)]10 public async Task ShouldWork()11 {12 await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);13 var result = await Page.EvaluateAsync<int>("async () => compute(9, 4)");14 Assert.AreEqual(36, result);15 }16 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work with complex objects")]17 [Test, Timeout(TestConstants.DefaultTestTimeout)]18 public async Task ShouldWorkWithComplexObjects()19 {20 await Page.ExposeFunctionAsync("woof", new { name = "doggo" });21 var result = await Page.EvaluateAsync<string>("async () => woof.name");22 Assert.AreEqual("doggo", result);23 }24 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work with ElementHandle")]25 [Test, Timeout(TestConstants.DefaultTestTimeout)]26 public async Task ShouldWorkWithElementHandle()27 {28 await Page.ExposeFunctionAsync("getElementProperty", (ElementHandle element, string propertyName) => element.GetPropertyAsync(propertyName));29 await Page.SetContentAsync("<section id=\"testAttribute\">43543</section>");30 var element = await Page.QuerySelectorAsync("section");31 var result = await Page.EvaluateAsync<int>("async () => getElementProperty(document.getElementById('testAttribute'), 'id').then(e => e.jsonValue())");32 Assert.AreEqual(43543, result);33 }34 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should throw for conflicting window values")]35 [Test, Timeout(TestConstants.DefaultTestTimeout)]36 public async Task ShouldThrowForConflictingWindowValues()37 {38 await Page.SetContentAsync("<div>hello</div>");39 await Page.ExposeFunctionAsync("conflictingFunction", () => { });40 var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.ExposeFunctionAsync("conflictingFunction", () => { }));41 Assert.AreEqual("Failed to add window.conflictingFunction: window[\"conflictingFunction\"] already exists", exception.Message);

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pageExposeFunctionAsync

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1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5using Xunit;6using Xunit.Abstractions;7{8 {9 internal BrowserContextExposeFunctionTests(ITestOutputHelper output) : base(output)10 {11 }12 [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]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.Equal(36, result);18 }19 }20}21{22 {23 internal BrowserContextExposeFunctionTests(ITestOutputHelper output) : base(output)24 {25 }26 }27}

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pageExposeFunctionAsync

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1using Microsoft.Playwright;2using System;3using System.Collections.Generic;4using System.Text;5using System.Threading.Tasks;6{7 {8 static async Task Main(string[] args)9 {10 using var playwright = await Playwright.CreateAsync();11 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions12 {13 });14 var page = await browser.NewPageAsync();15 await page.ExposeFunctionAsync("add", (int a, int b) => a + b);16 var result = await page.EvaluateAsync<int>("async() => { return await add(5, 6); }");17 Console.WriteLine(result);18 }19 }20}21using Microsoft.Playwright;22using System;23using System.Collections.Generic;24using System.Text;25using System.Threading.Tasks;26{27 {28 static async Task Main(string[] args)29 {30 using var playwright = await Playwright.CreateAsync();31 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions32 {33 });34 var page = await browser.NewPageAsync();35 await page.ExposeFunctionAsync("add", (int a, int b) => a + b);36 var result = await page.EvaluateAsync<int>("async() => { return await add(5, 6); }");37 Console.WriteLine(result);38 }39 }40}41using Microsoft.Playwright;42using System;43using System.Collections.Generic;44using System.Text;45using System.Threading.Tasks;46{47 {48 static async Task Main(string[] args)49 {50 using var playwright = await Playwright.CreateAsync();51 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions52 {53 });54 var page = await browser.NewPageAsync();

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pageExposeFunctionAsync

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1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System;4using System.Collections.Generic;5using System.Text;6using System.Threading.Tasks;7using Xunit;8using Xunit.Abstractions;9{10 [Collection(TestConstants.TestFixtureBrowserCollectionName)]11 {12 public BrowserContextExposeFunctionTests(ITestOutputHelper output) : base(output)13 {14 }15 [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]16 public async Task ShouldWork()17 {18 await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);19 var result = await Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }()");20 Assert.Equal(36, result);21 }22 [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]23 public async Task ShouldThrowIfUnderlyingElementWasDisposed()24 {25 await Page.ExposeFunctionAsync("compute", (int a, int b) => a * b);26 await Page.CloseAsync();27 var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<int>("async function() { return await compute(9, 4); }()"));28 Assert.Equal("Function has been disposed", exception.Message);29 }30 [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]

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pageExposeFunctionAsync

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1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5{6 {7 static async Task Main(string[] args)8 {9 await using var playwright = await Playwright.CreateAsync();10 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions{Headless = false});11 var page = await browser.NewPageAsync();12 await page.ExposeFunctionAsync("add", (int a, int b) => a + b);13 var result = await page.EvaluateAsync<int>("() => add(5, 6)");14 Console.WriteLine(result);15 }16 }17}18using System;19using System.Threading.Tasks;20using Microsoft.Playwright;21using Microsoft.Playwright.Tests;22{23 {24 static async Task Main(string[] args)25 {26 await using var playwright = await Playwright.CreateAsync();27 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions{Headless = false});28 var page = await browser.NewPageAsync();29 await page.ExposeFunctionAsync("add", (int a, int b) => a + b);30 var result = await page.EvaluateAsync<int>("() => add(5, 6)");31 Console.WriteLine(result);32 }33 }34}35using System;36using System.Threading.Tasks;37using Microsoft.Playwright;38using Microsoft.Playwright.Tests;39{40 {41 static async Task Main(string[] args)42 {

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pageExposeFunctionAsync

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1var page = await context.NewPageAsync();2await page.ExposeFunctionAsync("compute", (int a, int b) => a * b);3var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");4Console.WriteLine(result);5var page = await context.NewPageAsync();6page.ExposeFunction("compute", (int a, int 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", (int a, int b) => a * b);11var result = await page.EvaluateAsync<int>("async () => compute(9, 4)");12Console.WriteLine(result);13var page = await context.NewPageAsync();14page.ExposeFunction("compute", (int a, int 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", (int a, int b) => a * b);19var result = await page.EvaluateAsync<int>("async ()

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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 Xunit;8using Xunit.Abstractions;9{10 [Collection(TestConstants.TestFixtureBrowserCollectionName)]11 {12 public BrowserContextExposeFunctionTests(ITestOutputHelper output) : base(output)13 {14 }15 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work")]16 [Fact(Timeout = TestConstants.DefaultTestTimeout)]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 function() { return await compute(9, 4); }");21 Assert.Equal(36, result);22 }23 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work with complex objects")]24 [Fact(Timeout = TestConstants.DefaultTestTimeout)]25 public async Task ShouldWorkWithComplexObjects()26 {27 await Page.ExposeFunctionAsync("complexObject", new { foo = "bar!" });28 var result = await Page.EvaluateAsync<string>("async function() { return await complexObject.foo; }");29 Assert.Equal("bar!", result);30 }31 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work with ElementHandle arguments")]32 [Fact(Timeout = TestConstants.DefaultTestTimeout)]33 public async Task ShouldWorkWithElementHandleArguments()34 {35 await Page.SetContentAsync("<section>42</section>");36 await Page.ExposeFunctionAsync("getInnerText", (IElementHandle e) => e.InnerTextAsync());37 var result = await Page.EvaluateAsync<string>("async function() { return await getInnerText(document.querySelector('section')); }");38 Assert.Equal("42", result);39 }40 [PlaywrightTest("browsercontext-expose-function.spec.ts", "should work with null arguments")]41 [Fact(Timeout = TestConstants.DefaultTestTimeout)]42 public async Task ShouldWorkWithNullArguments()43 {44 await Page.ExposeFunctionAsync("

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