How to use PageEvaluateHandle class of PuppeteerSharp.Tests.JSHandleTests package

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.JSHandleTests.PageEvaluateHandle

PageEvaluateHandle.cs

Source:PageEvaluateHandle.cs Github

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...5using Xunit.Abstractions;6namespace PuppeteerSharp.Tests.JSHandleTests7{8 [Collection(TestConstants.TestFixtureCollectionName)]9 public class PageEvaluateHandle : PuppeteerPageBaseTest10 {11 public PageEvaluateHandle(ITestOutputHelper output) : base(output)12 {13 }14 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should work")]15 [PuppeteerFact]16 public async Task ShouldWork()17 => Assert.NotNull(await Page.EvaluateFunctionHandleAsync("() => window"));18 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should accept object handle as an argument")]19 [PuppeteerFact]20 public async Task ShouldAcceptObjectHandleAsAnArgument()21 {22 var navigatorHandle = await Page.EvaluateFunctionHandleAsync("() => navigator");23 var text = await Page.EvaluateFunctionAsync<string>(24 "(e) => e.userAgent",25 navigatorHandle);...

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PageEvaluateHandle

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp.Tests.Attributes;4using Xunit;5using Xunit.Abstractions;6{7 [Collection(TestConstants.TestFixtureCollectionName)]8 {9 public PageEvaluateHandleTests(ITestOutputHelper output) : base(output)10 {11 }12 [PuppeteerTest("jshandle.spec.ts", "JSHandle", "should work")]13 public async Task ShouldWork()14 {15 var aHandle = await Page.EvaluateHandleAsync("() => Promise.resolve(7)");16 var result = await Page.EvaluateAsync<int>("a => a * 2", aHandle);17 Assert.Equal(14, result);18 }19 [PuppeteerTest("jshandle.spec.ts", "JSHandle", "should work with arguments")]20 public async Task ShouldWorkWithArguments()21 {22 var aHandle = await Page.EvaluateHandleAsync("() => Promise.resolve(7)");23 var result = await Page.EvaluateAsync<int>("(a, b) => a * b", aHandle, 2);24 Assert.Equal(14, result);25 }26 [PuppeteerTest("jshandle.spec.ts", "JSHandle", "should work with ElementHandles")]27 public async Task ShouldWorkWithElementHandles()28 {29 await Page.SetContentAsync("<section>42</section>");30 var aHandle = await Page.EvaluateHandleAsync("() => Promise.resolve(document.querySelector('section'))");31 var text = await Page.EvaluateAsync<string>("e => e.textContent", aHandle);32 Assert.Equal("42", text);33 }34 [PuppeteerTest("jshandle.spec.ts", "JSHandle", "should throw error with exception details")]35 public async Task ShouldThrowErrorWithExceptionDetails()36 {37 var exception = await Assert.ThrowsAsync<EvaluationFailedException>(()38 => Page.EvaluateAsync("() => not.existing.object.property"));39 Assert.Contains("not is not defined", exception.Message);40 }41 [PuppeteerTest("jshandle.spec.ts", "JSHandle", "should accept ")]42 public async Task ShouldAcceptNull()43 {

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PageEvaluateHandle

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1using System.Threading.Tasks;2using PuppeteerSharp;3using PuppeteerSharp.Tests;4using Xunit;5using Xunit.Abstractions;6{7 [Collection("PuppeteerLoaderFixture collection")]8 {9 public PageEvaluateHandleTests(ITestOutputHelper output) : base(output)10 {11 }12 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should work with primitives")]13 [Fact(Timeout = TestConstants.DefaultTestTimeout)]14 public async Task ShouldWorkWithPrimitives()15 {16 Assert.Equal(5, await Page.EvaluateExpressionAsync<int>("5"));17 Assert.Equal(5.5, await Page.EvaluateExpressionAsync<double>("5.5"));18 Assert.Equal("foo", await Page.EvaluateExpressionAsync<string>("'foo'"));19 Assert.True(await Page.EvaluateExpressionAsync<bool>("true"));20 Assert.False(await Page.EvaluateExpressionAsync<bool>("false"));21 Assert.Null(await Page.EvaluateExpressionAsync<object>("null"));22 Assert.Equal(new object(), await Page.EvaluateExpressionAsync<object>("undefined"));23 }24 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should return NaN")]25 [Fact(Timeout = TestConstants.DefaultTestTimeout)]26 public async Task ShouldReturnNaN()27 {28 Assert.Equal(double.NaN, await Page.EvaluateExpressionAsync<double>("NaN"));29 }30 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should return -0")]31 [Fact(Timeout = TestConstants.DefaultTestTimeout)]32 public async Task ShouldReturnNegativeZero()33 {34 Assert.Equal(-0, await Page.EvaluateExpressionAsync<int>("-0"));35 }36 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should work with unserializable values")]37 [Fact(Timeout = TestConstants.DefaultTestTimeout)]38 public async Task ShouldWorkWithUnserializableValues()39 {40 var windowHandle = await Page.EvaluateHandleAsync("window");41 Assert.Equal("JSHandle@object", windowHandle.ToString());42 }43 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should work with arrays")]44 [Fact(Timeout = TestConstants.DefaultTestTimeout)]45 public async Task ShouldWorkWithArrays()46 {

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PageEvaluateHandle

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Tests.Attributes;5using Xunit;6using Xunit.Abstractions;7{8 [Collection(TestConstants.TestFixtureCollectionName)]9 {10 public PageEvaluateHandleTests(ITestOutputHelper output) : base(output)11 {12 }13 [PuppeteerTest("jshandle.spec.ts", "Page.evaluateHandle", "should work with primitives")]14 public async Task ShouldWorkWithPrimitives()15 {16 Assert.Equal(5, await Page.EvaluateExpressionAsync<int>("5"));17 Assert.Equal(5, await Page.EvaluateExpressionAsync<int>("2 * 2.5"));18 Assert.Equal("foo", await Page.EvaluateExpressionAsync<string>("'foo'"));19 Assert.True(await Page.EvaluateExpressionAsync<bool>("true"));20 Assert.False(await Page.EvaluateExpressionAsync<bool>("false"));21 Assert.Null(await Page.EvaluateExpressionAsync<object>("null"));22 Assert.Null(await Page.EvaluateExpressionAsync<object>("undefined"));23 }24 }25}26C:\Users\lenovo\source\repos\puppeteer-sharp\lib\PuppeteerSharp.Tests\JSHandleTests\PageEvaluateHandleTests.cs(5,7,5,18): error CS0246: The type or namespace name 'PuppeteerSharp' could not be found (are you missing a using directive or an assembly reference?)27C:\Users\lenovo\source\repos\puppeteer-sharp\lib\PuppeteerSharp.Tests\JSHandleTests\PageEvaluateHandleTests.cs(6,7,6,18): error CS0246: The type or namespace name 'PuppeteerSharp' could not be found (are you missing a using directive or an assembly reference?)28C:\Users\lenovo\source\repos\puppeteer-sharp\lib\PuppeteerSharp.Tests\JSHandleTests\PageEvaluateHandleTests.cs(7,7,7,18): error CS0246: The type or namespace name 'PuppeteerSharp' could not be found (are you missing a using directive or an assembly reference?)29C:\Users\lenovo\source\repos\puppeteer-sharp\lib\PuppeteerSharp.Tests\JSHandleTests\PageEvaluateHandleTests.cs(8,7,8,18): error CS0246

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PageEvaluateHandle

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 var searchBox = await page.QuerySelectorAsync("input[name=q]");13 await page.EvaluateFunctionAsync(@"(searchBox) => {14 searchBox.value = 'Hello, World!';15 }", searchBox);16 }17 }18}19using System;20using System.Threading.Tasks;21using PuppeteerSharp;22{23 {24 static async Task Main(string[] args)25 {26 var browser = await Puppeteer.LaunchAsync(new LaunchOptions27 {28 });29 var page = await browser.NewPageAsync();30 var searchBox = await page.QuerySelectorAsync("input[name=q]");31 await page.EvaluateFunctionAsync(@"(searchBox) => {32 searchBox.value = 'Hello, World!';33 }", searchBox);34 }35 }36}37using System;38using System.Threading.Tasks;39using PuppeteerSharp;40{41 {42 static async Task Main(string[] args)43 {44 var browser = await Puppeteer.LaunchAsync(new LaunchOptions45 {46 });47 var page = await browser.NewPageAsync();48 var searchBox = await page.QuerySelectorAsync("input[name=q]");49 await page.EvaluateFunctionAsync(@"(searchBox) => {50 searchBox.value = 'Hello, World!';51 }", searchBox);52 }53 }54}55using System;56using System.Threading.Tasks;

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PageEvaluateHandle

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using System.IO;5using System.Text;6using PuppeteerSharp.Tests.JSHandleTests;7{8 {9 static async Task Main(string[] args)10 {11 Console.WriteLine("Hello World!");12 {13 };14 var browser = await Puppeteer.LaunchAsync(options);15 var page = await browser.NewPageAsync();16 var jsHandle = await page.EvaluateHandleAsync("() => document.body");17 var json = jsHandle.ToString();18 Console.WriteLine(json);19 var properties = await jsHandle.GetPropertiesAsync();20 foreach (var property in properties)21 {22 Console.WriteLine(property.Key);23 Console.WriteLine(await property.Value.JsonValueAsync());24 }25 await browser.CloseAsync();26 }27 }28}29using System;30using System.Threading.Tasks;31using PuppeteerSharp;32using System.IO;33using System.Text;34using PuppeteerSharp.Tests.JSHandleTests;35{36 {37 static async Task Main(string[] args)38 {39 Console.WriteLine("Hello World!");40 {41 };42 var browser = await Puppeteer.LaunchAsync(options);43 var page = await browser.NewPageAsync();44 var jsHandle = await page.EvaluateHandleAsync("() => document.body");45 var json = jsHandle.ToString();46 Console.WriteLine(json);47 var properties = await jsHandle.GetPropertiesAsync();48 foreach (var property in properties)49 {50 Console.WriteLine(property.Key);51 Console.WriteLine(await property.Value.JsonValueAsync());52 }53 await browser.CloseAsync();54 }55 }56}57using System;58using System.Threading.Tasks;59using PuppeteerSharp;60using System.IO;61using System.Text;62using PuppeteerSharp.Tests.JSHandleTests;63{64 {65 static async Task Main(string[] args)66 {67 Console.WriteLine("Hello World!");

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PageEvaluateHandle

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1var page = await browser.NewPageAsync();2var result = await page.EvaluateHandleAsync("() => document.body");3var resultHandle = await result.JsonValueAsync();4Console.WriteLine(resultHandle);5await browser.CloseAsync();6{ "type":"node", "subtype":"null", "className":"null", "description":"null", "objectId":"{\"injectedScriptId\":4,\"id\":1}" }

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PageEvaluateHandle

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 MainAsync().Wait();9 }10 static async Task MainAsync()11 {12 var path = Path.GetFullPath("C:\\Users\\user\\Desktop\\PuppeteerSharp\\PuppeteerSharp\\bin\\Debug\\netcoreapp2.0\\PuppeteerSharp.dll");13 {14 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",15 Args = new string[] { "--no-sandbox" },16 };17 using (var browser = await Puppeteer.LaunchAsync(options))18 {19 using (var page = await browser.NewPageAsync())20 {21 await page.EvaluateFunctionAsync("() => { window.scrollBy(0, 1000); }");22 await page.WaitForTimeoutAsync(5000);23 var handle = await page.EvaluateHandleAsync("() => { return document; }");24 var result = await handle.GetPropertyAsync("nodeType");25 Console.WriteLine(result);26 }27 }28 }29 }30}

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