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How to use ShouldAwaitPromise method of Microsoft.Playwright.Tests.PageEvaluateTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageEvaluateTests.ShouldAwaitPromise

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...173            }"));174            StringAssert.Contains("navigation", exception.Message);175        }176        [PlaywrightTest("page-evaluate.spec.ts", "should await promise")]177        public async Task ShouldAwaitPromise()178        {179            int result = await Page.EvaluateAsync<int>("() => Promise.resolve(8 * 7)");180            Assert.AreEqual(56, result);181        }182        [PlaywrightTest("page-evaluate.spec.ts", "should work right after framenavigated")]183        public async Task ShouldWorkRightAfterFrameNavigated()184        {185            Task<int> frameEvaluation = null;186            Page.FrameNavigated += (_, e) =>187            {188                frameEvaluation = e.EvaluateAsync<int>("() => 6 * 7");189            };190            await Page.GotoAsync(Server.EmptyPage);191            Assert.AreEqual(42, await frameEvaluation);192        }193        [PlaywrightTest("page-evaluate.spec.ts", "should work right after a cross-origin navigation")]194        public async Task ShouldWorkRightAfterACrossOriginNavigation()195        {196            await Page.GotoAsync(Server.EmptyPage);197            Task<int> frameEvaluation = null;198            Page.FrameNavigated += (_, e) =>199            {200                frameEvaluation = e.EvaluateAsync<int>("() => 6 * 7");201            };202            await Page.GotoAsync(Server.CrossProcessPrefix + "/empty.html");203            Assert.AreEqual(42, await frameEvaluation);204        }205        [PlaywrightTest("page-evaluate.spec.ts", "should work from-inside an exposed function")]206        public async Task ShouldWorkFromInsideAnExposedFunction()207        {208            // Setup inpage callback, which calls Page.evaluate209            await Page.ExposeFunctionAsync("callController", async (int a, int b) => await Page.EvaluateAsync<int>("({a, b}) => a * b", new { a, b }));210            int result = await Page.EvaluateAsync<int>(@"async function() {211                return await callController(9, 3);212            }");213            Assert.AreEqual(27, result);214        }215        [PlaywrightTest("page-evaluate.spec.ts", "should reject promise with exception")]216        public async Task ShouldRejectPromiseWithException()217        {218            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("() => not_existing_object.property"));219            StringAssert.Contains("not_existing_object", exception.Message);220        }221        [PlaywrightTest("page-evaluate.spec.ts", "should support thrown strings as error messages")]222        public async Task ShouldSupportThrownStringsAsErrorMessages()223        {224            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("() => { throw 'qwerty'; }"));225            StringAssert.Contains("qwerty", exception.Message);226        }227        [PlaywrightTest("page-evaluate.spec.ts", "should support thrown numbers as error messages")]228        public async Task ShouldSupportThrownNumbersAsErrorMessages()229        {230            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("() => { throw 100500; }"));231            StringAssert.Contains("100500", exception.Message);232        }233        [PlaywrightTest("page-evaluate.spec.ts", "should return complex objects")]234        public async Task ShouldReturnComplexObjects()235        {236            var obj = new { foo = "bar!" };237            var result = await Page.EvaluateAsync<JsonElement>("a => a", obj);238            Assert.AreEqual("bar!", result.GetProperty("foo").GetString());239        }240        [PlaywrightTest("page-evaluate.spec.ts", "should return NaN")]241        public async Task ShouldReturnNaN()242        {243            double result = await Page.EvaluateAsync<double>("() => NaN");244            Assert.AreEqual(double.NaN, result);245        }246        [PlaywrightTest("page-evaluate.spec.ts", "should return -0")]247        public async Task ShouldReturnNegative0()248        {249            Assert.AreEqual(-0, (await Page.EvaluateAsync<double>("() => -0")));250        }251        [PlaywrightTest("page-evaluate.spec.ts", "should return Infinity")]252        public async Task ShouldReturnInfinity()253        {254            double result = await Page.EvaluateAsync<double>("() => Infinity");255            Assert.AreEqual(double.PositiveInfinity, result);256        }257        [PlaywrightTest("page-evaluate.spec.ts", "should return -Infinity")]258        public async Task ShouldReturnNegativeInfinity()259        {260            double result = await Page.EvaluateAsync<double>("() => -Infinity");261            Assert.AreEqual(double.NegativeInfinity, result);262        }263        [PlaywrightTest("page-evaluate.spec.ts", "should work with overwritten Promise")]264        public async Task ShouldWorkWithOverwrittenPromise()265        {266            await Page.EvaluateAsync(@"() => {267              const originalPromise = window.Promise;268              class Promise2 {269                static all(...arg) {270                  return wrap(originalPromise.all(...arg));271                }272                static race(...arg) {273                  return wrap(originalPromise.race(...arg));274                }275                static resolve(...arg) {276                  return wrap(originalPromise.resolve(...arg));277                }278                constructor(f, r) {279                  this._promise = new originalPromise(f, r);280                }281                then(f, r) {282                  return wrap(this._promise.then(f, r));283                }284                catch(f) {285                  return wrap(this._promise.catch(f));286                }287                finally(f) {288                  return wrap(this._promise.finally(f));289                }290              };291              const wrap = p => {292                const result = new Promise2(() => {}, () => {});293                result._promise = p;294                return result;295              };296              window.Promise = Promise2;297              window.__Promise2 = Promise2;298            }");299            Assert.True(await Page.EvaluateAsync<bool>(@"() => {300              const p = Promise.all([Promise.race([]), new Promise(() => {}).then(() => {})]);301              return p instanceof window.__Promise2;302            }"));303            Assert.AreEqual(42, await Page.EvaluateAsync<int>("() => Promise.resolve(42)"));304        }305        [PlaywrightTest("page-evaluate.spec.ts", @"should accept ""undefined"" as one of multiple parameters")]306        public async Task ShouldAcceptUndefinedAsOneOfMultipleParameters()307        {308            //C# will send nulls309            bool result = await Page.EvaluateAsync<bool>(@"({a, b}) => {310                console.log(a);311                console.log(b);312                return Object.is (a, null) && Object.is (b, 'foo')313            }", new { a = (object)null, b = "foo" });314            Assert.True(result);315        }316        [PlaywrightTest("page-evaluate.spec.ts", "should properly serialize undefined fields")]317        public async Task ShouldProperlySerializeUndefinedFields()318        {319            dynamic result = await Page.EvaluateAsync<ExpandoObject>("() => ({a: undefined})");320            Assert.Null(result.a);321        }322        [PlaywrightTest("page-evaluate.spec.ts", "should properly serialize null arguments")]323        public async Task ShouldProperlySerializeNullArguments()324                => Assert.Null(await Page.EvaluateAsync<JsonDocument>("x => x", null));325        [PlaywrightTest("page-evaluate.spec.ts", "should properly serialize null fields")]326        public async Task ShouldProperlySerializeNullFields()327        {328            dynamic result = await Page.EvaluateAsync<ExpandoObject>("() => ({ a: null})");329            Assert.Null(result.a);330        }331        [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for non-serializable objects")]332        public async Task ShouldReturnUndefinedForNonSerializableObjects()333            => Assert.Null(await Page.EvaluateAsync<object>("() => window"));334        [PlaywrightTest("page-evaluate.spec.ts", "should fail for circular object")]335        public async Task ShouldFailForCircularObject()336        {337            object result = await Page.EvaluateAsync<object>(@"() => {338                var a = { };339                var b = { a };340                a.b = b;341                return a;342            }");343            Assert.Null(result);344        }345        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw a tricky error")]346        public async Task ShouldBeAbleToThrowATrickyError()347        {348            var windowHandle = await Page.EvaluateHandleAsync("() => window");349            var exceptionText = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => windowHandle.JsonValueAsync<object>());350            var error = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<JsonElement>(@"errorText => {351                throw new Error(errorText);352            }", exceptionText.Message));353            StringAssert.Contains(exceptionText.Message, error.Message);354        }355        [PlaywrightTest("page-evaluate.spec.ts", "should accept a string with comments")]356        public async Task ShouldAcceptAStringWithComments()357        {358            int result = await Page.EvaluateAsync<int>("2 + 5;\n// do some math!");359            Assert.AreEqual(7, result);360        }361        [PlaywrightTest("page-evaluate.spec.ts", "should accept element handle as an argument")]362        public async Task ShouldAcceptElementHandleAsAnArgument()363        {364            await Page.SetContentAsync("<section>42</section>");365            var element = await Page.QuerySelectorAsync("section");366            string text = await Page.EvaluateAsync<string>("e => e.textContent", element);367            Assert.AreEqual("42", text);368        }369        [PlaywrightTest("page-evaluate.spec.ts", "should throw if underlying element was disposed")]370        public async Task ShouldThrowIfUnderlyingElementWasDisposed()371        {372            await Page.SetContentAsync("<section>39</section>");373            var element = await Page.QuerySelectorAsync("section");374            Assert.NotNull(element);375            await element.DisposeAsync();376            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync("e => e.textContent", element));377            StringAssert.Contains("JSHandle is disposed", exception.Message);378        }379        [PlaywrightTest("page-evaluate.spec.ts", "should simulate a user gesture")]380        public async Task ShouldSimulateAUserGesture()381        {382            bool result = await Page.EvaluateAsync<bool>(@"() => {383                document.body.appendChild(document.createTextNode('test'));384                document.execCommand('selectAll');385                return document.execCommand('copy');386            }");387            Assert.True(result);388        }389        [PlaywrightTest("page-evaluate.spec.ts", "should throw a nice error after a navigation")]390        public async Task ShouldThrowANiceErrorAfterANavigation()391        {392            var evaluateTask = Page.EvaluateAsync("() => new Promise(f => window.__resolve = f)");393            await TaskUtils.WhenAll(394                Page.WaitForNavigationAsync(),395                Page.EvaluateAsync(@"() => {396                    window.location.reload();397                    setTimeout(() => window.__resolve(42), 1000);398                }")399            );400            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => evaluateTask);401            StringAssert.Contains("navigation", exception.Message);402        }403        [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a navigation")]404        public async Task ShouldNotThrowAnErrorWhenEvaluationDoesANavigation()405        {406            await Page.GotoAsync(Server.Prefix + "/one-style.html");407            int[] result = await Page.EvaluateAsync<int[]>(@"() => {408                window.location = '/empty.html';409                return [42];410            }");411            Assert.AreEqual(new[] { 42 }, result);412        }413        [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a synchronous navigation and returns an object")]414        [Skip(SkipAttribute.Targets.Webkit)]415        public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsAnObject()416        {417            var result = await Page.EvaluateAsync<JsonElement>(@"() => {418                window.location.reload();419                return {a: 42};420            }");421            Assert.AreEqual(42, result.GetProperty("a").GetInt32());422        }423        [PlaywrightTest("page-evaluate.spec.ts", "should not throw an error when evaluation does a synchronous navigation and returns an undefined")]424        [Skip(SkipAttribute.Targets.Webkit)]425        public async Task ShouldNotThrowAnErrorWhenEvaluationDoesASynchronousNavigationAndReturnsUndefined()426        {427            var result = await Page.EvaluateAsync<JsonElement?>(@"() => {428                window.location.reload();429                return undefined;430            }");431            Assert.Null(result);432        }433        [PlaywrightTest("page-evaluate.spec.ts", "should transfer 100Mb of data from page to node.js")]434        public async Task ShouldTransfer100MbOfDataFromPageToNodeJs()435        {436            string a = await Page.EvaluateAsync<string>("() => Array(100 * 1024 * 1024 + 1).join('a')");437            Assert.AreEqual(100 * 1024 * 1024, a.Length);438        }439        [PlaywrightTest("page-evaluate.spec.ts", "should throw error with detailed information on exception inside promise ")]440        public async Task ShouldThrowErrorWithDetailedInformationOnExceptionInsidePromise()441        {442            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<object>(@"() => new Promise(() => {443                throw new Error('Error in promise');444            })"));445            StringAssert.Contains("Error in promise", exception.Message);446        }447        [PlaywrightTest("page-evaluate.spec.ts", "should work even when JSON is set to null")]448        public async Task ShouldWorkEvenWhenJSONIsSetToNull()449        {450            await Page.EvaluateAsync<object>("() => { window.JSON.stringify = null; window.JSON = null; }");451            var result = await Page.EvaluateAsync<JsonElement>("() => ({ abc: 123})");452            Assert.AreEqual(123, result.GetProperty("abc").GetInt32());453        }454        [PlaywrightTest("page-evaluate.spec.ts", "should await promise from popup")]455        [Skip(SkipAttribute.Targets.Firefox)]456        public async Task ShouldAwaitPromiseFromPopup()457        {458            await Page.GotoAsync(Server.EmptyPage);459            int result = await Page.EvaluateAsync<int>(@"() => {460                const win = window.open('about:blank');461                return new win.Promise(f => f(42));462            }");463            Assert.AreEqual(42, result);464        }465        [PlaywrightTest("page-evaluate.spec.ts", "should work with non-strict expressions")]466        public async Task ShouldWorkWithNonStrictExpressions()467        {468            Assert.AreEqual(3.14m, await Page.EvaluateAsync<decimal>(@"() => {469              y = 3.14;470              return y;...

ShouldAwaitPromise

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;9{10    [Parallelizable(ParallelScope.Self)]11    {12        [PlaywrightTest("page-evaluate.spec.ts", "should work")]13        [Test, Timeout(TestConstants.DefaultTestTimeout)]14        public async Task ShouldWork()15        {16            var result = await Page.EvaluateAsync<int>("() => 7 * 3");17            Assert.AreEqual(21, result);18        }19        [PlaywrightTest("page-evaluate.spec.ts", "should transfer NaN")]20        [Test, Timeout(TestConstants.DefaultTestTimeout)]21        public async Task ShouldTransferNaN()22        {23            var result = await Page.EvaluateAsync<double>("a => a", double.NaN);24            Assert.AreEqual(double.NaN, result);25        }26        [PlaywrightTest("page-evaluate.spec.ts", "should transfer -0")]27        [Test, Timeout(TestConstants.DefaultTestTimeout)]28        public async Task ShouldTransferNegative0()29        {30            var result = await Page.EvaluateAsync<int>("a => a", -0);31            Assert.AreEqual(-0, result);32        }33        [PlaywrightTest("page-evaluate.spec.ts", "should transfer Infinity")]34        [Test, Timeout(TestConstants.DefaultTestTimeout)]35        public async Task ShouldTransferInfinity()36        {37            var result = await Page.EvaluateAsync<double>("a => a", double.PositiveInfinity);38            Assert.AreEqual(double.PositiveInfinity, result);39        }40        [PlaywrightTest("page-evaluate.spec.ts", "should transfer -Infinity")]41        [Test, Timeout(TestConstants.DefaultTestTimeout)]42        public async Task ShouldTransferNegativeInfinity()43        {44            var result = await Page.EvaluateAsync<double>("a => a", double.NegativeInfinity);45            Assert.AreEqual(double.NegativeInfinity, result);46        }47        [PlaywrightTest("page-evaluate.spec.ts", "should transfer arrays")]48        [Test, Timeout(TestConstants.DefaultTestTimeout)]

ShouldAwaitPromise

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6{7    {8        [PlaywrightTest("page-evaluate.spec.ts", "should await promise")]9        public async Task ShouldAwaitPromise()10        {11            int result = await Page.EvaluateAsync<int>("() => Promise.resolve(8 * 7)");12            Assert.AreEqual(56, result);13        }14    }15}

ShouldAwaitPromise

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Linq;5    using System.Text;6    using System.Threading.Tasks;7    using PlaywrightSharp;8    using PlaywrightSharp.Tests.BaseTests;9    using Xunit;10    using Xunit.Abstractions;11    [Collection(TestConstants.TestFixtureBrowserCollectionName)]12    {13        public PageEvaluateTests(ITestOutputHelper output) : base(output)14        {15        }16        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]17        public async Task ShouldWork()18        {19            var result = await Page.EvaluateAsync<int>("() => 7 * 3");20            Assert.Equal(21, result);21        }22        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]23        public async Task ShouldTransferNaN()24        {25            var result = await Page.EvaluateAsync<double>("a => a", double.NaN);26            Assert.True(double.IsNaN(result));27        }28        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]29        public async Task ShouldTransferNegativeZero()30        {31            var result = await Page.EvaluateAsync<double>("a => a", -0);32            Assert.Equal(0, result);33            Assert.True(1 / result < 0);34        }35        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]

ShouldAwaitPromise

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Xunit;6using Xunit.Abstractions;7{8    {9        public async Task ShouldAwaitPromise()10        {11            var result = await Page.EvaluateAsync<int>("() => Promise.resolve(8 * 7)");12            Assert.Equal(56, result);13        }14    }15}16{17    {18        public async Task ShouldAwaitPromise()19        {20            var result = await Page.EvaluateAsync<int>("() => Promise.resolve(8 * 7)");21            Assert.Equal(56, result);22        }23    }24}

ShouldAwaitPromise

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            var result = await page.EvaluateAsync<bool>("() => Promise.resolve(8 * 7)");14            Console.WriteLine(result);15        }16    }17}18using System;19using System.Threading.Tasks;20using Microsoft.Playwright;21{22    {23        static async Task Main(string[] args)24        {25            using var playwright = await Playwright.CreateAsync();26            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions27            {28            });29            var page = await browser.NewPageAsync();30            var result = await page.EvaluateAsync<bool>("async () => await Promise.resolve(8 * 7)");31            Console.WriteLine(result);32        }33    }34}35using System;36using System.Threading.Tasks;37using Microsoft.Playwright;38{

ShouldAwaitPromise

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.EvaluateAsync(@"() => {15                return new Promise(resolve => {16                    setTimeout(() => {17                        resolve(42);18                    }, 1000);19                });20            }");21        }22    }23}24using System;25using System.Threading.Tasks;26using Microsoft.Playwright;27{28    {29        static async Task Main(string[] args)30        {31            using var playwright = await Playwright.CreateAsync();32            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions33            {34            });35            var context = await browser.NewContextAsync();36            var page = await context.NewPageAsync();37            await page.EvaluateAsync(@"() => {38                return new Promise(resolve => {39                    setTimeout(() => {40                        resolve(42);41                    }, 1000);42                });43            }");44        }45    }46}47using System;48using System.Threading.Tasks;49using Microsoft.Playwright;50{51    {52        static async Task Main(string[] args)53        {54            using var playwright = await Playwright.CreateAsync();55            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions56            {57            });58            var context = await browser.NewContextAsync();

ShouldAwaitPromise

Using AI Code Generation

1var result = await page.EvaluateAsync<bool>("() => { return new Promise(resolve => setTimeout(() => resolve(true), 0)); }");2Console.WriteLine(result);3var result = await page.EvaluateAsync<bool>(@"() => {4    return new Promise(resolve => setTimeout(() => resolve(true), 0));5}");6Console.WriteLine(result);7var result = await page.EvaluateAsync<bool>(@"() => {8    return new Promise(resolve => setTimeout(() => resolve(true), 0));9}");10Console.WriteLine(result);11var result = await page.EvaluateAsync<bool>(@"() => {12    return new Promise(resolve => setTimeout(() => resolve(true), 0));13}");14Console.WriteLine(result);15var result = await page.EvaluateAsync<bool>(@"() => {16    return new Promise(resolve => setTimeout(() => resolve(true), 0));17}");18Console.WriteLine(result);19var result = await page.EvaluateAsync<bool>(@"() => {20    return new Promise(resolve => setTimeout(() => resolve(true), 0));21}");22Console.WriteLine(result);23var result = await page.EvaluateAsync<bool>(@"() => {24    return new Promise(resolve => setTimeout(() => resolve(true), 0));25}");26Console.WriteLine(result);27var result = await page.EvaluateAsync<bool>(@"() => {28    return new Promise(resolve => setTimeout(() => resolve(true), 0));29}");30Console.WriteLine(result);31var result = await page.EvaluateAsync<bool>(@"() => {32    return new Promise(resolve => setTimeout(() => resolve(true), 0));33}");34Console.WriteLine(result);35var result = await page.EvaluateAsync<bool>(@"() => {36    return new Promise(resolve => setTimeout(() => resolve(true), 0));37}");38Console.WriteLine(result);

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