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

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

GetPropertyTests.cs

Source: GetPropertyTests.cs Github

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...3using Xunit.Abstractions;4namespace PuppeteerSharp.Tests.JSHandleTests5{6 [Collection("PuppeteerLoaderFixture collection")]7 public class GetPropertyTests : PuppeteerPageBaseTest8 {9 public GetPropertyTests(ITestOutputHelper output) : base(output)10 {11 }12 [Fact]13 public async Task ShouldWork()14 {15 var aHandle = await Page.EvaluateExpressionHandleAsync(@"({16 one: 1,17 two: 2,18 three: 319 })");20 var twoHandle = await aHandle.GetPropertyAsync("two");21 Assert.Equal(2, await twoHandle.JsonValueAsync<int>());22 }23 }...

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GetPropertyTests

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1using PuppeteerSharp.Tests.JSHandleTests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8 {9 static void Main(string[] args)10 {11 GetPropertyTests test = new GetPropertyTests();12 test.GetPropertyShouldWork();13 }14 }15}16using PuppeteerSharp.Tests.JSHandleTests;17using System;18using System.Collections.Generic;19using System.Linq;20using System.Text;21using System.Threading.Tasks;22{23 {24 static void Main(string[] args)25 {26 GetPropertyTests test = new GetPropertyTests();27 test.GetPropertyShouldWork();28 }29 }30}31using PuppeteerSharp.Tests.JSHandleTests;32using System;33using System.Collections.Generic;34using System.Linq;35using System.Text;36using System.Threading.Tasks;37{38 {39 static void Main(string[] args)40 {41 GetPropertyTests test = new GetPropertyTests();42 test.GetPropertyShouldWork();43 }44 }45}46using PuppeteerSharp.Tests.JSHandleTests;47using System;48using System.Collections.Generic;49using System.Linq;50using System.Text;51using System.Threading.Tasks;52{53 {54 static void Main(string[] args)55 {56 GetPropertyTests test = new GetPropertyTests();57 test.GetPropertyShouldWork();58 }59 }60}61using PuppeteerSharp.Tests.JSHandleTests;62using System;63using System.Collections.Generic;64using System.Linq;65using System.Text;66using System.Threading.Tasks;67{68 {69 static void Main(string[] args)70 {71 GetPropertyTests test = new GetPropertyTests();72 test.GetPropertyShouldWork();73 }74 }75}

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GetPropertyTests

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1using PuppeteerSharp.Tests.JSHandleTests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Xunit;8{9 [Collection("PuppeteerLoaderFixture collection")]10 {11 public async Task ShouldWork()12 {13 await Page.EvaluateExpressionAsync("window.__FOO = 123;");14 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateExpressionAsync("() => window.__FOO"));15 Assert.Equal("Property __FOO of window was not found", exception.Message);16 }17 }18}19using PuppeteerSharp.Tests.JSHandleTests;20using System;21using System.Collections.Generic;22using System.Linq;23using System.Text;24using System.Threading.Tasks;25using Xunit;26{27 [Collection("PuppeteerLoaderFixture collection")]28 {29 public async Task ShouldWork()30 {31 await Page.EvaluateExpressionAsync("window.__FOO = 123;");32 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateExpressionAsync("() => window.__FOO"));33 Assert.Equal("Property __FOO of window was not found", exception.Message);34 }35 }36}37using PuppeteerSharp.Tests.JSHandleTests;38using System;39using System.Collections.Generic;40using System.Linq;41using System.Text;42using System.Threading.Tasks;43using Xunit;44{45 [Collection("PuppeteerLoaderFixture collection")]46 {47 public async Task ShouldWork()48 {49 await Page.EvaluateExpressionAsync("window.__FOO = 123;");50 var exception = await Assert.ThrowsAsync<Exception>(() => Page.EvaluateExpressionAsync("() => window.__FOO"));51 Assert.Equal("Property __FOO of window was not found", exception.Message);52 }53 }54}

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GetPropertyTests

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1using PuppeteerSharp.Tests.JSHandleTests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Xunit;8{9 [Collection("PuppeteerLoaderFixture collection")]10 {11 public async Task ShouldWork()12 {13 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");14 var grid = await Page.EvaluateExpressionHandleAsync("document.querySelector('.grid')");15 var result = await grid.GetPropertyAsync("children");16 Assert.Equal(9, (await result.JsonValueAsync()).AsArray().Length);17 }18 }19}20using PuppeteerSharp.Tests.JSHandleTests;21using System;22using System.Collections.Generic;23using System.Linq;24using System.Text;25using System.Threading.Tasks;26using Xunit;27{28 [Collection("PuppeteerLoaderFixture collection")]29 {30 public async Task ShouldWork()31 {32 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");33 var grid = await Page.EvaluateExpressionHandleAsync("document.querySelector('.grid')");34 var result = await grid.GetPropertiesAsync();35 Assert.Equal(9, result.Count());36 }37 }38}39using PuppeteerSharp.Tests.JSHandleTests;40using System;41using System.Collections.Generic;42using System.Linq;43using System.Text;44using System.Threading.Tasks;45using Xunit;46{47 [Collection("PuppeteerLoaderFixture collection")]48 {49 public async Task ShouldWork()50 {51 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");52 var grid = await Page.EvaluateExpressionHandleAsync("document.querySelector('.grid')");53 var result = await grid.GetJsonValueAsync();54 Assert.Equal(9, result.AsArray().Length);55 }56 }57}

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GetPropertyTests

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp.Tests.JSHandleTests;7using PuppeteerSharp.Xunit;8using Xunit;9using Xunit.Abstractions;10{11 [Collection("PuppeteerLoaderFixture collection")]12 {13 public GetPropertyTests(ITestOutputHelper output) : base(output)14 {15 }16 [PuppeteerTest("jshandle.spec.ts", "JSHandle.getProperty", "should work")]17 public async Task ShouldWork()18 {19 await Page.GoToAsync(TestConstants.ServerUrl + "/​consolelog.html");20 var aHandle = await Page.EvaluateHandleAsync("() => window");21 var resultHandle = await aHandle.GetPropertyAsync("location");22 var result = await resultHandle.JsonValueAsync();23 Assert.Equal(TestConstants.ServerUrl + "/​consolelog.html", result.ToString());24 }25 [PuppeteerTest("jshandle.spec.ts", "JSHandle.getProperty", "should work with undefined")]26 public async Task ShouldWorkWithUndefined()27 {28 await Page.GoToAsync(TestConstants.EmptyPage);29 var aHandle = await Page.EvaluateHandleAsync("() => ({ a: undefined })");30 var result = await aHandle.GetPropertyAsync("a");31 Assert.Null(await result.JsonValueAsync());32 }33 [PuppeteerTest("jshandle.spec.ts", "JSHandle.getProperty", "should work with null")]34 public async Task ShouldWorkWithNull()35 {36 await Page.GoToAsync(TestConstants.EmptyPage);37 var aHandle = await Page.EvaluateHandleAsync("() => ({ a: null })");38 var result = await aHandle.GetPropertyAsync("a");39 Assert.Null(await result.JsonValueAsync());40 }41 [PuppeteerTest("jshandle.spec.ts", "JSHandle.getProperty", "should work with unserializable values")]42 public async Task ShouldWorkWithUnserializableValues()43 {44 await Page.GoToAsync(TestConstants.EmptyPage);45 var aHandle = await Page.EvaluateHandleAsync("() => ({ a: window })");46 var result = await aHandle.GetPropertyAsync("a");47 Assert.Equal("JSHandle

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StackOverFlow community discussions

Questions
Discussion

Is there a remove page method corresponding to NewPageAsync() in PuppeteerSharp?

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Puppeteer Sharp strange behaviour

You can close the page using CloseAsync:

var page = browser.NewPageAsync();
////
await page.CloseAsync();

An using block will also close the page:

using (var page = await new browser.PageAsync())
{
///
}

Puppeteer-Sharp v2.0.3+ also supports await using blocks

await using (var page = await new browser.PageAsync())
{
 ///
}
https://stackoverflow.com/questions/61517099/is-there-a-remove-page-method-corresponding-to-newpageasync-in-puppeteersharp

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