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

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

PageWaitForFunctionTests.cs

Source:PageWaitForFunctionTests.cs

...29namespace Microsoft.Playwright.Tests30{31    public class PageWaitForFunctionTests : PageTestEx32    {33        [PlaywrightTest("page-wait-for-function.spec.ts", "should timeout")]34        public async Task ShouldTimeout()35        {36            var startTime = DateTime.Now;37            int timeout = 42;38            await Page.WaitForTimeoutAsync(timeout);39            Assert.True((DateTime.Now - startTime).TotalMilliseconds > timeout / 2);40        }41        [PlaywrightTest("page-wait-for-function.spec.ts", "should accept a string")]42        [Ignore("We don't this test")]43        public void ShouldAcceptAString()44        {45        }46        [PlaywrightTest("page-wait-for-function.spec.tsPageWaitForFunctionTests", "should work when resolved right before execution context disposal")]47        public async Task ShouldWorkWhenResolvedRightBeforeExecutionContextDisposal()48        {49            await Page.AddInitScriptAsync("window.__RELOADED = true");50            await Page.WaitForFunctionAsync(@"() =>51            {52                if (!window.__RELOADED)53                    window.location.reload();54                return true;55            }");56        }57        [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on interval")]58        public async Task ShouldPollOnInterval()59        {60            int polling = 100;61            var timeDelta = await Page.WaitForFunctionAsync(@"() => {62                if (!window.__startTime) {63                    window.__startTime = Date.now();64                    return false;65                }66                return Date.now() - window.__startTime;67            }", null, new() { PollingInterval = polling });68            int value = (await timeDelta.JsonValueAsync<int>());69            Assert.True(value >= polling);70        }71        [PlaywrightTest("page-wait-for-function.spec.ts", "should avoid side effects after timeout")]72        public async Task ShouldAvoidSideEffectsAfterTimeout()73        {74            int counter = 0;75            Page.Console += (_, _) => ++counter;76            var exception = await PlaywrightAssert.ThrowsAsync<TimeoutException>(() => Page.WaitForFunctionAsync(77                @"() => {78                  window.counter = (window.counter || 0) + 1;79                  console.log(window.counter);80                }",81                null, new() { PollingInterval = 1, Timeout = 1000 }));82            int savedCounter = counter;83            await Page.WaitForTimeoutAsync(2000);84            StringAssert.Contains("Timeout 1000ms exceeded", exception.Message);85            Assert.AreEqual(savedCounter, counter);86        }87        [PlaywrightTest("page-wait-for-function.spec.ts", "should throw on polling:mutation")]88        [Ignore("We don't need to test this")]89        public void ShouldThrowOnPollingMutation()90        {91        }92        [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on raf")]93        [Ignore("We don't support raf")]94        public void ShouldPollOnRaf()95        {96            /*97            var watchdog = Page.WaitForFunctionAsync(98                "() => window.__FOO === 'hit'",99                polling: Polling.Raf);100            await Page.EvaluateAsync("window.__FOO = 'hit'");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);120        }121        [PlaywrightTest("page-wait-for-function.spec.ts", "should fail with ReferenceError on wrong page")]122        public async Task ShouldFailWithReferenceErrorOnWrongPage()123        {124            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.WaitForFunctionAsync("() => globalVar === 123"));125            StringAssert.Contains("globalVar", exception.Message);126        }127        [PlaywrightTest("page-wait-for-function.spec.ts", "should work with strict CSP policy")]128        [Ignore("We don't support raf")]129        public void ShouldWorkWithStrictCSPPolicy()130        {131            /*132            Server.SetCSP("/empty.html", "script-src " + Server.Prefix);133            await Page.GotoAsync(Server.EmptyPage);134            await TaskUtils.WhenAll(135                Page.WaitForFunctionAsync(136                    "() => window.__FOO === 'hit'",137                    polling: Polling.Raf),138                Page.EvaluateAsync("window.__FOO = 'hit'"));139            */140        }141        [PlaywrightTest("page-wait-for-function.spec.ts", "should throw on bad polling value")]142        [Ignore("We don't this test")]143        public void ShouldThrowOnBadPollingValue()144        {145        }146        [PlaywrightTest("page-wait-for-function.spec.ts", "should throw negative polling interval")]147        public async Task ShouldThrowNegativePollingInterval()148        {149            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(()150                => Page.WaitForFunctionAsync("() => !!document.body", null, new() { PollingInterval = -10 }));151            StringAssert.Contains("Cannot poll with non-positive interval", exception.Message);152        }153        [PlaywrightTest("page-wait-for-function.spec.ts", "should return the success value as a JSHandle")]154        public async Task ShouldReturnTheSuccessValueAsAJSHandle()155            => Assert.AreEqual(5, await (await Page.WaitForFunctionAsync("() => 5")).JsonValueAsync<int>());156        [PlaywrightTest("page-wait-for-function.spec.ts", "should return the window as a success value")]157        public async Task ShouldReturnTheWindowAsASuccessValue()158            => Assert.NotNull(await Page.WaitForFunctionAsync("() => window"));159        [PlaywrightTest("page-wait-for-function.spec.ts", "should accept ElementHandle arguments")]160        public async Task ShouldAcceptElementHandleArguments()161        {162            await Page.SetContentAsync("<div></div>");163            var div = await Page.QuerySelectorAsync("div");164            bool resolved = false;165            var waitForFunction = Page.WaitForFunctionAsync("element => !element.parentElement", div)166                .ContinueWith(_ => resolved = true);167            Assert.False(resolved);168            await Page.EvaluateAsync("element => element.remove()", div);169            await waitForFunction;170        }171        [PlaywrightTest("page-wait-for-function.spec.ts", "should respect timeout")]172        public async Task ShouldRespectTimeout()173        {174            var exception = await PlaywrightAssert.ThrowsAsync<TimeoutException>(()175                => Page.WaitForFunctionAsync("false", null, new() { Timeout = 10 }));176            StringAssert.Contains("Timeout 10ms exceeded", exception.Message);177        }178        [PlaywrightTest("page-wait-for-function.spec.ts", "should respect default timeout")]179        public async Task ShouldRespectDefaultTimeout()180        {181            Page.SetDefaultTimeout(1);182            var exception = await PlaywrightAssert.ThrowsAsync<TimeoutException>(()183                => Page.WaitForFunctionAsync("false"));184            StringAssert.Contains("Timeout 1ms exceeded", exception.Message);185        }186        [PlaywrightTest("page-wait-for-function.spec.ts", "should disable timeout when its set to 0")]187        public async Task ShouldDisableTimeoutWhenItsSetTo0()188        {189            var watchdog = Page.WaitForFunctionAsync(190                @"() => {191                    window.__counter = (window.__counter || 0) + 1;192                    return window.__injected;193                }",194                null,195                new()196                {197                    PollingInterval = 10,198                    Timeout = 0199                });200            await Page.WaitForFunctionAsync("() => window.__counter > 10");201            await Page.EvaluateAsync("window.__injected = true");202            await watchdog;203        }204        [PlaywrightTest("page-wait-for-function.spec.ts", "should survive cross-process navigation")]205        public async Task ShouldSurviveCrossProcessNavigation()206        {207            bool fooFound = false;208            var waitForFunction = Page.WaitForFunctionAsync("window.__FOO === 1")209                .ContinueWith(_ => fooFound = true);210            await Page.GotoAsync(Server.EmptyPage);211            Assert.False(fooFound);212            await Page.ReloadAsync();213            Assert.False(fooFound);214            await Page.GotoAsync(Server.CrossProcessPrefix + "/grid.html");215            Assert.False(fooFound);216            await Page.EvaluateAsync("window.__FOO = 1");217            await waitForFunction;218            Assert.True(fooFound);219        }220        [PlaywrightTest("page-wait-for-function.spec.ts", "should survive navigations")]221        public async Task ShouldSurviveNavigations()222        {223            var watchdog = Page.WaitForFunctionAsync("() => window.__done");224            await Page.GotoAsync(Server.EmptyPage);225            await Page.GotoAsync(Server.Prefix + "/consolelog.html");226            await Page.EvaluateAsync("() => window.__done = true");227            await watchdog;228        }229        [PlaywrightTest("page-wait-for-function.spec.ts", "should work with multiline body")]230        public async Task ShouldWorkWithMultilineBody()231        {232            var result = await Page.WaitForFunctionAsync(@"233                (() => true)()234            ");235            Assert.True(await result.JsonValueAsync<bool>());236        }237        [PlaywrightTest("page-wait-for-function.spec.ts", "should wait for predicate with arguments")]238        public Task ShouldWaitForPredicateWithArguments()239            => Page.WaitForFunctionAsync(@"({arg1, arg2}) => arg1 + arg2 === 3", new { arg1 = 1, arg2 = 2 });240    }241}...

PlaywrightTest

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Playwright.NUnit;3using NUnit.Framework;4{5    {6        [PlaywrightTest("page-wait-for-function.spec.ts", "should work")]7        [Test, Timeout(TestConstants.DefaultTestTimeout)]8        public async Task ShouldWork()9        {10            await Page.GotoAsync(Server.Prefix + "/grid.html");11            var watchdog = Page.WaitForFunctionAsync("() => window.result");12            await Page.EvaluateAsync("() => window.result = 'hit'");13            await watchdog;

PlaywrightTest

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.Tests;8using NUnit.Framework;9using NUnit.Framework.Interfaces;10{11    [Parallelizable(ParallelScope.Self)]12    {13        [PlaywrightTest("page-wait-for-function.spec.ts", "should work")]14        [Test, Timeout(TestConstants.DefaultTestTimeout)]15        public async Task ShouldWork()16        {17            await Page.GotoAsync(Server.Prefix + "/grid.html");18            var watchdog = Page.WaitForFunctionAsync("() => window.innerWidth < 100");19            await Page.SetViewportSizeAsync(50, 50);20            await watchdog;21        }22    }23}

PlaywrightTest

Using AI Code Generation

1{2    using System;3    using System.IO;4    using System.Linq;5    using System.Text;6    using System.Threading.Tasks;7    using Microsoft.Playwright.Transport.Channels;8    using Microsoft.Playwright.Transport.Protocol;9    using Microsoft.Playwright.Transport.Tests;10    using Microsoft.Playwright.Transport.Tests.Helpers;11    using NUnit.Framework;12    using PlaywrightSharp;13    using PlaywrightSharp.Helpers;14    using PlaywrightSharp.Tests.Attributes;15    using PlaywrightSharp.Tests.BaseTests;16    using PlaywrightSharp.Transport;17    using PlaywrightSharp.Transport.Channels;18    using PlaywrightSharp.Transport.Protocol;19    using PlaywrightSharp.Transport.Tests;20    using PlaywrightSharp.Transport.Tests.Helpers;21    using PlaywrightSharp.Xunit;22    using PlaywrightSharp.Xunit.Attributes;23    using Xunit;24    using Xunit.Abstractions;25    using Xunit.Sdk;26    using static Microsoft.Playwright.Tests.TestConstants;27    [Parallelizable(ParallelScope.Self)]28    {29        public PageWaitForFunctionTests(ITestOutputHelper output) : base(output)30        {31        }32        [PlaywrightTest("page-wait-for-function.spec.ts", "should work")]33        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]34        public async Task ShouldWork()35        {36            var watchdog = Page.WaitForFunctionAsync("() => window.__FOO === 'hit'");37            await Page.EvaluateAsync("() => window.__FOO = 'hit'");38            await watchdog;39        }40        [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on interval")]41        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]42        public async Task ShouldPollOnInterval()43        {44            var start = DateTime.Now;45            await Page.WaitForFunctionAsync("() => window.__FOO === 'hit'", new WaitForFunctionOptions { PollingInterval = 100 });46            var end = DateTime.Now;47            Assert.True((end - start).TotalMilliseconds >= 100);48        }49        [PlaywrightTest("page-wait-for-function.spec.ts", "should poll on raf")]50        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]51        public async Task ShouldPollOnRaf()52        {53            var start = DateTime.Now;54            await Page.WaitForFunctionAsync("() => window.__FOO === 'hit'", new WaitForFunctionOptions

PlaywrightTest

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "5.cs", "5.html", 1);3using Microsoft.Playwright.Tests;4PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "6.cs", "6.html", 1);5using Microsoft.Playwright.Tests;6PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "7.cs", "7.html", 1);7using Microsoft.Playwright.Tests;8PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "8.cs", "8.html", 1);9using Microsoft.Playwright.Tests;10PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "9.cs", "9.html", 1);11using Microsoft.Playwright.Tests;12PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "10.cs", "10.html", 1);13using Microsoft.Playwright.Tests;14PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "11.cs", "11.html", 1);15using Microsoft.Playwright.Tests;16PlaywrightTest("PageWaitForFunctionTests", "ShouldWorkWhenExpectedValueIsAString", "12.cs", "12.html", 1);

PlaywrightTest

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.Tests;8using Xunit;9using Xunit.Abstractions;10{11    [Collection(TestConstants.TestFixtureBrowserCollectionName)]12    {13        public PageWaitForFunctionTests(ITestOutputHelper output) : base(output)14        {15        }16        [PlaywrightTest("page-wait-for-function.spec.ts", "should work with strict CSP policy")]17        [Fact(Timeout = TestConstants.DefaultTestTimeout)]18        public async Task ShouldWorkWithStrictCSPPolicy()19        {20            await Page.GotoAsync(TestConstants.ServerUrl + "/csp.html");21            await Page.AddScriptTagAsync(new() { Content = "window.__injected = 42;" });22            var result = await Page.WaitForFunctionAsync<int>("() => window.__injected");23            Assert.Equal(42, result);24        }25    }26}27at Microsoft.Playwright.Tests.PageWaitForFunctionTests.ShouldWorkWithStrictCSPPolicy() in /_/src/PlaywrightSharp.Tests/PageWaitForFunctionTests.cs:line 20

Playwright tutorial

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Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
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