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

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

PageEvaluateTests.cs

Source:PageEvaluateTests.cs Github

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...35{36 public class PageEvaluateTests : PageTestEx37 {38 [PlaywrightTest("page-evaluate.spec.ts", "should work")]39 public async Task ShouldWork()40 {41 int result = await Page.EvaluateAsync<int>("() => 7 * 3");42 Assert.AreEqual(21, result);43 }44 public async Task ShouldSerializeArguments()45 {46 int result = await Page.EvaluateAsync<int>("a => a.m * a.n", new { m = 7, n = 3 });47 Assert.AreEqual(21, result);48 }49 [PlaywrightTest("page-evaluate.spec.ts", "should transfer NaN")]50 public async Task ShouldTransferNaN()51 {52 double result = await Page.EvaluateAsync<double>("a => a", double.NaN);53 Assert.AreEqual(double.NaN, result);54 }55 [PlaywrightTest("page-evaluate.spec.ts", "should transfer -0")]56 public async Task ShouldTransferNegative0()57 {58 double result = await Page.EvaluateAsync<double>("a => a", -0d);59 Assert.AreEqual(-0, result);60 }61 [PlaywrightTest("page-evaluate.spec.ts", "should transfer Infinity")]62 public async Task ShouldTransferInfinity()63 {64 double result = await Page.EvaluateAsync<double>("a => a", double.PositiveInfinity);65 Assert.AreEqual(double.PositiveInfinity, result);66 }67 [PlaywrightTest("page-evaluate.spec.ts", "should transfer -Infinity")]68 public async Task ShouldTransferNegativeInfinity()69 {70 double result = await Page.EvaluateAsync<double>("a => a", double.NegativeInfinity);71 Assert.AreEqual(double.NegativeInfinity, result);72 }73 [PlaywrightTest("page-evaluate.spec.ts", "should roundtrip unserializable values")]74 public async Task ShouldRoundtripUnserializableValues()75 {76 dynamic value = new77 {78 infinity = double.PositiveInfinity,79 nInfinity = double.NegativeInfinity,80 nZero = -0d,81 nan = double.NaN,82 };83 dynamic result = await Page.EvaluateAsync<dynamic>("value => value", value);84 Assert.AreEqual(value.infinity, result.infinity);85 Assert.AreEqual(value.nInfinity, result.nInfinity);86 Assert.AreEqual(value.nZero, result.nZero);87 Assert.AreEqual(value.nan, result.nan);88 }89 [PlaywrightTest("page-evaluate.spec.ts", "should roundtrip promise to value")]90 public async Task ShouldRoundtripPromiseToValue()91 {92 object result = await Page.EvaluateAsync<object>("value => Promise.resolve(value)", null);93 Assert.Null(result);94 double infitinity = await Page.EvaluateAsync<double>("value => Promise.resolve(value)", double.PositiveInfinity);95 Assert.AreEqual(double.PositiveInfinity, infitinity);96 double ninfitinity = await Page.EvaluateAsync<double>("value => Promise.resolve(value)", double.NegativeInfinity);97 Assert.AreEqual(double.NegativeInfinity, ninfitinity);98 double nzero = await Page.EvaluateAsync<double>("value => Promise.resolve(value)", -0d);99 Assert.AreEqual(-0, nzero);100 }101 [PlaywrightTest("page-evaluate.spec.ts", "should roundtrip promise to unserializable values")]102 public async Task ShouldRoundtripPromiseToUnserializableValues()103 {104 dynamic value = new105 {106 infinity = double.PositiveInfinity,107 nInfinity = double.NegativeInfinity,108 nZero = -0d,109 nan = double.NaN,110 };111 dynamic result = await Page.EvaluateAsync<ExpandoObject>("value => Promise.resolve(value)", value);112 Assert.AreEqual(value.infinity, result.infinity);113 Assert.AreEqual(value.nInfinity, result.nInfinity);114 Assert.AreEqual(value.nZero, result.nZero);115 Assert.AreEqual(value.nan, result.nan);116 }117 [PlaywrightTest("page-evaluate.spec.ts", "should transfer arrays")]118 public async Task ShouldTransferArrays()119 {120 int[] result = await Page.EvaluateAsync<int[]>("a => a", new[] { 1, 2, 3 });121 Assert.AreEqual(new[] { 1, 2, 3 }, result);122 }123 [PlaywrightTest("page-evaluate.spec.ts", "should transfer arrays as arrays, not objects")]124 public async Task ShouldTransferArraysAsArraysNotObjects()125 {126 bool result = await Page.EvaluateAsync<bool>("a => Array.isArray(a)", new[] { 1, 2, 3 });127 Assert.True(result);128 }129 [PlaywrightTest("page-evaluate.spec.ts", "should transfer maps as empty objects")]130 public async Task ShouldTransferMapsAsEmptyObjects()131 {132 dynamic result = await Page.EvaluateAsync<ExpandoObject>("a => a.x.constructor.name + ' ' + JSON.stringify(a.x), {x: new Map([[1, 2]])}");133 Assert.IsEmpty(TypeDescriptor.GetProperties(result));134 }135 [PlaywrightTest("page-evaluate.spec.ts", "should modify global environment")]136 public async Task ShouldModifyGlobalEnvironment()137 {138 await Page.EvaluateAsync("() => window.globalVar = 123");139 Assert.AreEqual(123, await Page.EvaluateAsync<int>("globalVar"));140 }141 [PlaywrightTest("page-evaluate.spec.ts", "should evaluate in the page context")]142 public async Task ShouldEvaluateInThePageContext()143 {144 await Page.GotoAsync(Server.Prefix + "/​global-var.html");145 Assert.AreEqual(123, await Page.EvaluateAsync<int>("globalVar"));146 }147 [PlaywrightTest("page-evaluate.spec.ts", "should return undefined for objects with symbols")]148 public async Task ShouldReturnUndefinedForObjectsWithSymbols()149 {150 Assert.AreEqual(new object[] { null }, await Page.EvaluateAsync<object>("() => [Symbol('foo4')]"));151 Assert.AreEqual("{}", (await Page.EvaluateAsync<JsonElement>(@"() => {152 var a = { };153 a[Symbol('foo4')] = 42;154 return a;155 }")).GetRawText());156 dynamic element = await Page.EvaluateAsync<ExpandoObject>(@"() => {157 return { foo: [{ a: Symbol('foo4') }] };158 }");159 Assert.Null(element.foo[0].a);160 }161 [PlaywrightTest("page-evaluate.spec.ts", "should work with unicode chars")]162 public async Task ShouldWorkWithUnicodeChars()163 {164 int result = await Page.EvaluateAsync<int>("a => a['中文字符']", new Dictionary<string, int> { ["中文字符"] = 42 });165 Assert.AreEqual(42, result);166 }167 [PlaywrightTest("page-evaluate.spec.ts", "should throw when evaluation triggers reload")]168 public async Task ShouldThrowWhenEvaluationTriggersReload()169 {170 var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<object>(@"() => {171 location.reload();172 return new Promise(() => { });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;471 }"));472 }473 [PlaywrightTest("page-evaluate.spec.ts", "should respect use strict expression")]474 public async Task ShouldRespectUseStrictExpression()475 {476 var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<object>(@"() => {477 ""use strict"";478 variableY = 3.14;479 return variableY;480 }"));...

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ShouldWork

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1{2 [Collection(TestConstants.TestFixtureBrowserCollectionName)]3 {4 public PageEvaluateTests(ITestOutputHelper output) : base(output)5 {6 }7 [PlaywrightTest("page-evaluate.spec.ts", "should work")]8 [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]9 public async Task ShouldWork()10 {11 await Page.EvaluateAsync("() => window.__FOO = 123");12 Assert.Equal(123, await Page.EvaluateAsync<int>("() => window.__FOO"));13 Assert.Equal(123, await Page.EvaluateAsync<int>("() => window.__FOO"));14 }15 }16}17 Assert.Equal() Failure18 at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldWork() in C:\Users\user\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\PageEvaluateTests.cs:line 3119The test is failing because the assert is not passing. The following error is displayed: Microsoft.Playwright.Tests.PageEvaluateTests.ShouldWork [FAIL] Assert.Equal() Failure Expected: 123 Actual: 0 Stack Trace: at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldWork() in C:\Users\user\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\PageEvaluateTests.cs:line 3120 Assert.Equal() Failure21 at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldWork() in C:\Users\user\source\repos\PlaywrightSharp\src\PlaywrightSharp.Tests\PageEvaluateTests.cs:line 3122 Assert.Equal() Failure23 at Microsoft.Playwright.Tests.PageEvaluateTests.ShouldWork() in C:\Users\

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ShouldWork

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1await ShouldWork();2await ShouldWork();3await ShouldWork();4await ShouldWork();5await ShouldWork();6await ShouldWork();7await ShouldWork();8await ShouldWork();9await ShouldWork();10await ShouldWork();11await ShouldWork();12await ShouldWork();13await ShouldWork();14await ShouldWork();15await ShouldWork();16await ShouldWork();17await ShouldWork();18await ShouldWork();19await ShouldWork();20await ShouldWork();21await ShouldWork();

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ShouldWork

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1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright.Tests;6using Xunit;7{8 {9 public async Task ShouldWork()10 {11 await Page.GotoAsync(Server.Prefix + "/​tamperable.html");12 var result = await Page.EvaluateAsync<int>("() => 7 * 3");13 Assert.Equal(21, result);14 }15 }16}17using System;18using System.Collections.Generic;19using System.Text;20using System.Threading.Tasks;21using Microsoft.Playwright.Tests;22using Xunit;23{24 {25 public async Task ShouldWork()26 {27 await Page.GotoAsync(Server.Prefix + "/​tamperable.html");28 var result = await Page.EvaluateHandleAsync("() => 7 * 3");29 Assert.Equal(21, await result.JsonValueAsync<int>());30 }31 }32}33using System;34using System.Collections.Generic;35using System.Text;36using System.Threading.Tasks;37using Microsoft.Playwright.Tests;38using Xunit;39{40 {41 public async Task ShouldWork()42 {43 await Page.ExposeBindingAsync("add", (args) => args[0] + args[1]);44 var result = await Page.EvaluateAsync<int>("async function() { return add(5, 6); }");45 Assert.Equal(11, result);46 }47 }48}49using System;50using System.Collections.Generic;51using System.Text;52using System.Threading.Tasks;53using Microsoft.Playwright.Tests;54using Xunit;55{56 {57 public async Task ShouldWork()58 {59 await Page.ExposeBindingAsync("wrapper", (args) => args[0]);

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1using Microsoft.Playwright.Tests;2var test = new Microsoft.Playwright.Tests.PageEvaluateTests();3test.ShouldWork();4using Microsoft.Playwright.Tests;5var test = new Microsoft.Playwright.Tests.PageEvaluateTests();6test.ShouldWork();7using Microsoft.Playwright.Tests;8var test = new Microsoft.Playwright.Tests.PageEvaluateTests();9test.ShouldWork();10using Microsoft.Playwright.Tests;11var test = new Microsoft.Playwright.Tests.PageEvaluateTests();12test.ShouldWork();13using Microsoft.Playwright.Tests;14var test = new Microsoft.Playwright.Tests.PageEvaluateTests();15test.ShouldWork();16using Microsoft.Playwright.Tests;17var test = new Microsoft.Playwright.Tests.PageEvaluateTests();18test.ShouldWork();19using Microsoft.Playwright.Tests;20var test = new Microsoft.Playwright.Tests.PageEvaluateTests();21test.ShouldWork();22using Microsoft.Playwright.Tests;23var test = new Microsoft.Playwright.Tests.PageEvaluateTests();24test.ShouldWork();

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1using Microsoft.Playwright.Tests;2using System;3using System.Threading.Tasks;4{5 {6 public static async Task Main(string[] args)7 {8 var page = await Page.EvaluateTests.ShouldWork();9 }10 }11}12using Microsoft.Playwright.Tests;13using System;14using System.Threading.Tasks;15{16 {17 public static async Task Main(string[] args)18 {19 var page = await Page.EvaluateTests.ShouldWork();20 }21 }22}23using Microsoft.Playwright.Tests;24using System;25using System.Threading.Tasks;26{27 {28 public static async Task Main(string[] args)29 {30 var page = await Page.EvaluateTests.ShouldWork();31 }32 }33}34using Microsoft.Playwright.Tests;35using System;36using System.Threading.Tasks;37{38 {39 public static async Task Main(string[] args)40 {41 var page = await Page.EvaluateTests.ShouldWork();42 }43 }44}45using Microsoft.Playwright.Tests;46using System;47using System.Threading.Tasks;48{49 {50 public static async Task Main(string[] args)51 {52 var page = await Page.EvaluateTests.ShouldWork();53 }54 }55}56using Microsoft.Playwright.Tests;57using System;58using System.Threading.Tasks;59{60 {61 public static async Task Main(string[] args)62 {63 var page = await Page.EvaluateTests.ShouldWork();64 }65 }66}67using Microsoft.Playwright.Tests;68using System;69using System.Threading.Tasks;

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1var playwright = await Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var page = await browser.NewPageAsync();4await page.SetContentAsync(@"");5await page.EvaluateAsync(@"() => {6 var t = new Microsoft.Playwright.Tests.PageEvaluateTests();7 t.ShouldWork();8}");9await browser.CloseAsync();10var playwright = await Playwright.CreateAsync();11var browser = await playwright.Chromium.LaunchAsync();12var page = await browser.NewPageAsync();13await page.SetContentAsync(@"");14await page.EvaluateAsync(@"() => {15 var t = new Microsoft.Playwright.Tests.PageEvaluateTests();16 t.ShouldWork();17}");18await browser.CloseAsync();19var playwright = await Playwright.CreateAsync();20var browser = await playwright.Chromium.LaunchAsync();21var page = await browser.NewPageAsync();22await page.SetContentAsync(@"");23await page.EvaluateAsync(@"() => {24 var t = new Microsoft.Playwright.Tests.PageEvaluateTests();25 t.ShouldWork();26}");27await browser.CloseAsync();28var playwright = await Playwright.CreateAsync();29var browser = await playwright.Chromium.LaunchAsync();30var page = await browser.NewPageAsync();31await page.SetContentAsync(@"");32await page.EvaluateAsync(@"() => {33 var t = new Microsoft.Playwright.Tests.PageEvaluateTests();34 t.ShouldWork();35}");36await browser.CloseAsync();37var playwright = await Playwright.CreateAsync();38var browser = await playwright.Chromium.LaunchAsync();39var page = await browser.NewPageAsync();40await page.SetContentAsync(@"");41await page.EvaluateAsync(@"() => {42 var t = new Microsoft.Playwright.Tests.PageEvaluateTests();

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Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

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  11. Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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Most used method in PageEvaluateTests

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