Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

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

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

PageEvaluateTests.cs

Source:PageEvaluateTests.cs

...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        }...

ShouldBeAbleToThrowATrickyError

Using AI Code Generation

1{2    [Parallelizable(ParallelScope.Self)]3    {4        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw a tricky error")]5        [Test, Timeout(TestConstants.DefaultTestTimeout)]6        public async Task ShouldBeAbleToThrowATrickyError()7        {8            await Page.SetContentAsync("<div>hello</div>");9            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<int>("() => Object.getPrototypeOf(null)"));10            StringAssert.Contains("Object.getPrototypeOf", exception.Message);11        }12    }13}14{15    [Parallelizable(ParallelScope.Self)]16    {17        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw an error from a different origin")]18        [Test, Timeout(TestConstants.DefaultTestTimeout)]19        public async Task ShouldBeAbleToThrowAnErrorFromADifferentOrigin()20        {21            await Page.SetContentAsync("<div>hello</div>");22            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync<int>("() => eval('throw new Error()')"));23            StringAssert.Contains("eval", exception.Message);24        }25    }26}27{28    [Parallelizable(ParallelScope.Self)]29    {30        [PlaywrightTest("page-evaluate.spec.ts", "should be able to await promise")]31        [Test, Timeout(TestConstants.DefaultTestTimeout)]32        public async Task ShouldBeAbleToAwaitPromise()33        {34            var result = await Page.EvaluateAsync<int>("() => Promise.resolve(8 *

ShouldBeAbleToThrowATrickyError

Using AI Code Generation

1{2    {3        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw a tricky error")]4        [Fact(Timeout = PlaywrightTestEx.Timeout)]5        public async Task ShouldBeAbleToThrowATrickyError()6        {7            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync(@"() => {8                class ErrorWithProps extends Error {9                    constructor() {10                        super('Test error');11                        this.foo = 'bar';12                    }13                }14                throw new ErrorWithProps();15            }"));16            Assert.Contains("Test error", exception.Message);17            Assert.Contains("foo", exception.Message);18        }19    }20}21{22    {23        [PlaywrightTest("page-evaluate.spec.ts", "should be able to throw a tricky error")]24        [Fact(Timeout = PlaywrightTestEx.Timeout)]25        public async Task ShouldBeAbleToThrowATrickyError()26        {27            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightException>(() => Page.EvaluateAsync(@"() => {28                class ErrorWithProps extends Error {29                    constructor() {30                        super('Test error');31                        this.foo = 'bar';32                    }33                }34                throw new ErrorWithProps();35            }"));36            Assert.Contains("Test error", exception.Message);37            Assert.Contains("foo", exception.Message);38        }39    }40}41const { it, expect } = require('./../lib/expect');42const utils = require('./../lib/utils');43it('should be able to throw a tricky error', async ({page, server}) => {44  const exception = await page.evaluate(() => {45    class ErrorWithProps extends Error {46      constructor() {47        super('Test error');48        this.foo = 'bar';49      }50    }51    throw new ErrorWithProps();52  }).catch(e => e);53  expect(exception.message).toContain('Test error');54  expect(exception.message).toContain('foo');55});

ShouldBeAbleToThrowATrickyError

Using AI Code Generation

1using Microsoft.Playwright.Tests;2PageEvaluateTests test = new PageEvaluateTests();3await test.ShouldBeAbleToThrowATrickyError();4using Microsoft.Playwright.Tests;5PageEvaluateTests test = new PageEvaluateTests();6await test.ShouldBeAbleToThrowAnErrorFromAnInjectedScript();7using Microsoft.Playwright.Tests;8PageEvaluateTests test = new PageEvaluateTests();9await test.ShouldBeAbleToThrowAString();10using Microsoft.Playwright.Tests;11PageEvaluateTests test = new PageEvaluateTests();12await test.ShouldBeAbleToThrowAnErrorFromAnAsyncInjectedScript();13using Microsoft.Playwright.Tests;14PageEvaluateTests test = new PageEvaluateTests();15await test.ShouldBeAbleToThrowAnErrorFromAnAsyncMethod();16using Microsoft.Playwright.Tests;17PageEvaluateTests test = new PageEvaluateTests();18await test.ShouldBeAbleToThrowAnErrorFromAnAsyncMethodWithHandle();19using Microsoft.Playwright.Tests;20PageEvaluateTests test = new PageEvaluateTests();21await test.ShouldBeAbleToThrowAnErrorFromAnAsyncMethodWithNullHandle();22using Microsoft.Playwright.Tests;23PageEvaluateTests test = new PageEvaluateTests();24await test.ShouldBeAbleToThrowAnErrorFromAnAsyncMethodWithNullHandle2();

ShouldBeAbleToThrowATrickyError

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 Xunit;9    using Xunit.Abstractions;10    {11        public async Task ShouldBeAbleToThrowATrickyError()12        {13            var exception = await Assert.ThrowsAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<string>("() => Promise.reject(new Error('oh my god'))"));14            Assert.Contains("oh my god",

ShouldBeAbleToThrowATrickyError

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright.Tests.BaseTests;6using NUnit.Framework;7{8    [Parallelizable(ParallelScope.Self)]9    {10        [Test, Timeout(TestConstants.DefaultTestTimeout)]11        public async Task ShouldBeAbleToThrowATrickyError()12        {13            var exception = await PlaywrightAssert.ThrowsAsync<PlaywrightSharpException>(() => Page.EvaluateAsync<int>("() => { throw new Error('Error in expression'); }"));14            StringAssert.Contains("Error in expression", exception.Message);15        }16    }17}

ShouldBeAbleToThrowATrickyError

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.Firefox.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            {15                await page.EvaluateAsync(@"() => {16                    throw new Error('This is my error');17                }");18            }19            catch (Exception e)20            {21                Console.WriteLine(e.Message);22            }23        }24    }25}26using System;27using System.Threading.Tasks;28using Microsoft.Playwright;29{30    {31        static async Task Main(string[] args)32        {33            using var playwright = await Playwright.CreateAsync();34            await using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions35            {36            });37            var context = await browser.NewContextAsync();38            var page = await context.NewPageAsync();39            {40                await page.EvaluateAsync(@"() => {41                    throw new Error('This is my error');42                }");43            }44            catch (Exception e)45            {46                Console.WriteLine(e.Message);47            }48        }49    }50}51using System;52using System.Threading.Tasks;53using Microsoft.Playwright;54{55    {56        static async Task Main(string[] args)57        {58            using var playwright = await Playwright.CreateAsync();59            await using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions60            {61            });62            var context = await browser.NewContextAsync();

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.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
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.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
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.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.