How to use ShouldFailWithPredicateThrowingOnFirstCall method of Microsoft.Playwright.Tests.PageWaitForFunctionTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageWaitForFunctionTests.ShouldFailWithPredicateThrowingOnFirstCall

PageWaitForFunctionTests.cs

Source:PageWaitForFunctionTests.cs Github

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...101 await watchdog;102 */103 }104 [PlaywrightTest("page-wait-for-function.spec.ts", "should fail with predicate throwing on first call")]105 public async Task ShouldFailWithPredicateThrowingOnFirstCall()106 {107 var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.WaitForFunctionAsync("() => { throw new Error('oh my'); }"));108 StringAssert.Contains("oh my", exception.Message);109 }110 [PlaywrightTest("page-wait-for-function.spec.ts", "should fail with predicate throwing sometimes")]111 public async Task ShouldFailWithPredicateThrowingSometimes()112 {113 var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.WaitForFunctionAsync(@"() => {114 window.counter = (window.counter || 0) + 1;115 if (window.counter === 3)116 throw new Error('Bad counter!');117 return window.counter === 5 ? 'result' : false;118 }"));119 StringAssert.Contains("Bad counter!", exception.Message);...

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ShouldFailWithPredicateThrowingOnFirstCall

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1{2 using System;3 using System.Collections.Generic;4 using System.Text;5 using System.Threading.Tasks;6 using PlaywrightSharp;7 using Xunit;8 using Xunit.Abstractions;9 [Collection(TestConstants.TestFixtureBrowserCollectionName)]10 {11 public PageWaitForFunctionTests(ITestOutputHelper output) : base(output)12 {13 }14 [PlaywrightTest("page-wait-for-function.spec.ts", "should fail with predicate throwing on first call")]15 [Fact(Timeout = TestConstants.DefaultTestTimeout)]16 public async Task ShouldFailWithPredicateThrowingOnFirstCall()17 {18 await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");19 var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => Page.WaitForFunctionAsync("() => window.__FOO === 1"));20 Assert.Contains("window.__FOO", exception.Message);21 }22 }23}

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ShouldFailWithPredicateThrowingOnFirstCall

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1using Microsoft.Playwright.Tests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Xunit;8using Xunit.Abstractions;9{10 {11 public async Task ShouldFailWithPredicateThrowingOnFirstCall()12 {13 var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => Page.WaitForFunctionAsync("() => { throw new Error('Error in predicate'); }"));14 Assert.Contains("Error in predicate", exception.Message);15 }16 }17}

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ShouldFailWithPredicateThrowingOnFirstCall

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1{2 using System;3 using System.Collections.Generic;4 using System.Text;5 using System.Threading.Tasks;6 using NUnit.Framework;7 using PlaywrightSharp;8 using PlaywrightSharp.Tests.BaseTests;9 {10 [PlaywrightTest("page-wait-for-function.spec.ts", "should work")]11 [Test, Timeout(TestConstants.DefaultTestTimeout)]12 public async Task ShouldWork()13 {14 var watchdog = Page.WaitForFunctionAsync("window.__FOO === 1");15 await Page.EvaluateAsync("() => window.__FOO = 1");16 await watchdog;17 }18 [PlaywrightTest("page-wait-for-function.spec.ts", "should work with args")]19 [Test, Timeout(TestConstants.DefaultTestTimeout)]20 public async Task ShouldWorkWithArgs()21 {22 var watchdog = Page.WaitForFunctionAsync("a => a, 1");23 await watchdog;24 }25 [PlaywrightTest("page-wait-for-function.spec.ts", "should work with ElementHandle args")]26 [Test, Timeout(TestConstants.DefaultTestTimeout)]27 public async Task ShouldWorkWithElementHandleArgs()28 {29 await Page.SetContentAsync("<div></div>");30 var div = await Page.QuerySelectorAsync("div");31 var watchdog = Page.WaitForFunctionAsync("e => !e.parentElement, e", div);32 await Page.EvaluateAsync("e => e.remove()", div);33 await watchdog;34 }35 [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on interval")]36 [Test, Timeout(TestConstants.DefaultTestTimeout)]37 public async Task ShouldPollOnInterval()38 {39 var start = DateTime.Now;40 var watchdog = Page.WaitForFunctionAsync("() => window.__FOO === 'hit'", null, new WaitForFunctionOptions41 {42 });43 await Page.EvaluateAsync("() => window.__FOO = 'hit'");44 await watchdog;45 Assert.True((DateTime.Now - start).TotalMilliseconds >= 100);46 }47 [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on raf")]48 [Test, Timeout(TestConstants.DefaultTestTimeout)]49 public async Task ShouldPollOnRaf()50 {51 var watchdog = Page.WaitForFunctionAsync("() =>

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ShouldFailWithPredicateThrowingOnFirstCall

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1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Tests;5using NUnit.Framework;6{7 {8 private string ShouldFailWithPredicateThrowingOnFirstCall()9 {10 return "ShouldFailWithPredicateThrowingOnFirstCall";11 }12 }13}14using Microsoft.Playwright.Tests;15using NUnit.Framework;16{17 {18 private string ShouldFailWithPredicateThrowingOnFirstCall()19 {20 return "ShouldFailWithPredicateThrowingOnFirstCall";21 }22 }23}24error CS0246: The type or namespace name 'Microsoft' could not be found (are you missing a using directive or an assembly reference?)25using Microsoft.Playwright.Tests;26using NUnit.Framework;27{28 {29 private string ShouldFailWithPredicateThrowingOnFirstCall()30 {31 return "ShouldFailWithPredicateThrowingOnFirstCall";32 }33 }34}35error CS0246: The type or namespace name 'Microsoft' could not be found (are you missing a using directive or an assembly reference?)36using Microsoft.Playwright.Tests;37using NUnit.Framework;38{39 {40 private string ShouldFailWithPredicateThrowingOnFirstCall()41 {42 return "ShouldFailWithPredicateThrowingOnFirstCall";43 }44 }45}46error CS0246: The type or namespace name 'Microsoft' could not be found (are you missing a using directive or an assembly reference?)

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ShouldFailWithPredicateThrowingOnFirstCall

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6{7 {8 static void Main(string[] args)9 {10 var page = new Microsoft.Playwright.Tests.PageWaitForFunctionTests();11 page.ShouldFailWithPredicateThrowingOnFirstCall();12 }13 }14}15{16 {17 public void ShouldFailWithPredicateThrowingOnFirstCall()18 {19 var page = new Page();20 var exception = Assert.ThrowsAsync<PlaywrightException>(() => page.WaitForFunctionAsync("() => not.existing.object.property"));21 Assert.Contains("not is not defined", exception.Message);22 }23 }24}25{26 {27 public Task<WaitForFunctionResult> WaitForFunctionAsync(string v)28 {29 throw new NotImplementedException();30 }31 }32 {33 }34 {35 public PlaywrightException(string message) : base(message)36 {37 }38 }39 {40 public static T ThrowsAsync<T>(Func<Task> task) where T : Exception41 {42 throw new NotImplementedException();43 }44 public static void Contains(string v, string message)45 {46 throw new NotImplementedException();47 }48 }49}

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ShouldFailWithPredicateThrowingOnFirstCall

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Tests;8using Newtonsoft.Json;9{10 {11 static async Task Main(string[] args)12 {13 var playwright = await Playwright.CreateAsync();14 var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions15 {16 });17 var context = await browser.NewContextAsync();18 var page = await context.NewPageAsync();19 await page.WaitForFunctionAsync(@"() => {20 const content = document.querySelector('#www-wikipedia-org > div.central-textlogo > h1 > a > img').getAttribute('alt');21 return content.includes('Wikipedia');22 }");23 await page.ScreenshotAsync(new PageScreenshotOptions24 {25 });26 await browser.CloseAsync();27 }28 }29}

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