How to use RejectOn method of Microsoft.Playwright.Core.Waiter class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Waiter.RejectOn

Waiter.cs

Source:Waiter.cs

...71        internal void RejectImmediately(Exception exception)72        {73            _immediateError = exception;74        }75        internal void RejectOnEvent<T>(76            object eventSource,77            string e,78            PlaywrightException navigationException,79            Func<T, bool> predicate = null)80        {81            if (eventSource == null)82            {83                return;84            }85            var (task, dispose) = GetWaitForEventTask(eventSource, e, predicate);86            RejectOn(87                task.ContinueWith(_ => throw navigationException, _cts.Token, TaskContinuationOptions.RunContinuationsAsynchronously, TaskScheduler.Current),88                dispose);89        }90        internal void RejectOnTimeout(int? timeout, string message)91        {92            if (timeout == null)93            {94                return;95            }96#pragma warning disable CA2000 // Dispose objects before losing scope97            var cts = new CancellationTokenSource();98#pragma warning restore CA2000 // Dispose objects before losing scope99            RejectOn(100                new TaskCompletionSource<bool>().Task.WithTimeout(timeout.Value, _ => new TimeoutException(message), cts.Token),101                () => cts.Cancel());102        }103        internal Task<T> WaitForEventAsync<T>(object eventSource, string e, Func<T, bool> predicate)104        {105            var (task, dispose) = GetWaitForEventTask(eventSource, e, predicate);106            return WaitForPromiseAsync(task, dispose);107        }108        internal Task<object> WaitForEventAsync(object eventSource, string e)109        {110            var (task, dispose) = GetWaitForEventTask<object>(eventSource, e, null);111            return WaitForPromiseAsync(task, dispose);112        }113        internal (Task<T> Task, Action Dispose) GetWaitForEventTask<T>(object eventSource, string e, Func<T, bool> predicate)114        {115            var info = eventSource.GetType().GetEvent(e) ?? eventSource.GetType().BaseType.GetEvent(e);116            var eventTsc = new TaskCompletionSource<T>();117            void EventHandler(object sender, T e)118            {119                try120                {121                    if (predicate == null || predicate(e))122                    {123                        eventTsc.TrySetResult(e);124                    }125                    else126                    {127                        return;128                    }129                }130                catch (Exception ex)131                {132                    eventTsc.TrySetException(ex);133                }134                info.RemoveEventHandler(eventSource, (EventHandler<T>)EventHandler);135            }136            info.AddEventHandler(eventSource, (EventHandler<T>)EventHandler);137            return (eventTsc.Task, () => info.RemoveEventHandler(eventSource, (EventHandler<T>)EventHandler));138        }139        internal async Task<T> WaitForPromiseAsync<T>(Task<T> task, Action dispose = null)140        {141            try142            {143                if (_immediateError != null)144                {145                    throw _immediateError;146                }147                var firstTask = await Task.WhenAny(Enumerable.Repeat(task, 1).Concat(_failures)).ConfigureAwait(false);148                dispose?.Invoke();149                await firstTask.ConfigureAwait(false);150                return await task.ConfigureAwait(false);151            }152            catch (TimeoutException ex)153            {154                dispose?.Invoke();155                _error = ex.ToString();156                Dispose();157                throw new TimeoutException(ex.Message + FormatLogRecording(_logs), ex);158            }159            catch (Exception ex)160            {161                dispose?.Invoke();162                _error = ex.ToString();163                Dispose();164                throw new PlaywrightException(ex.Message + FormatLogRecording(_logs), ex);165            }166        }167        private string FormatLogRecording(List<string> logs)168        {169            if (logs.Count == 0)170            {171                return string.Empty;172            }173            const string header = " logs ";174            const int headerLength = 60;175            int leftLength = (headerLength - header.Length) / 2;176            int rightLength = headerLength - header.Length - leftLength;177            string log = string.Join("\n", logs);178            return $"\n{new string('=', leftLength)}{header}{new string('=', rightLength)}\n{log}\n{new string('=', headerLength)}";179        }180        private void RejectOn(Task task, Action dispose)181        {182            _failures.Add(task);183            if (dispose != null)184            {185                _dispose.Add(dispose);186            }187        }188    }189}...

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await page.TypeAsync("input[name='q']", "Hello world");12            var waiter = page.WaitForNavigationAsync(new PageWaitForNavigationOptions13            {14                WaitUntilState = new[] { WaitUntilState.Load }15            });16            var waiter2 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions17            {18                WaitUntilState = new[] { WaitUntilState.Load }19            });20            var waiter3 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions21            {22                WaitUntilState = new[] { WaitUntilState.Load }23            });24            var waiter4 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions25            {26                WaitUntilState = new[] { WaitUntilState.Load }27            });28            var waiter5 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions29            {30                WaitUntilState = new[] { WaitUntilState.Load }31            });32            var waiter6 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions33            {34                WaitUntilState = new[] { WaitUntilState.Load }35            });36            var waiter7 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions37            {38                WaitUntilState = new[] { WaitUntilState.Load }39            });40            var waiter8 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions41            {42                WaitUntilState = new[] { WaitUntilState.Load }43            });44            var waiter9 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            await 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 waiter = page.WaitForNavigationAsync(new PageWaitForNavigationOptions14            {15            });16            await page.ClickAsync("text=Images");17            await waiter;18            var waiter2 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions19            {20            });21            await page.ClickAsync("text=Images");22            await waiter2;23        }24    }25}26using System;27using System.Threading.Tasks;28using Microsoft.Playwright;29{30    {31        static async Task Main(string[] args)32        {33            await using var playwright = await Playwright.CreateAsync();34            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions35            {36            });37            var page = await browser.NewPageAsync();38            var waiter = page.WaitForNavigationAsync(new PageWaitForNavigationOptions39            {40            });41            await page.ClickAsync("text=Images");42            await waiter;43            var waiter2 = page.WaitForNavigationAsync(new PageWaitForNavigationOptions44            {45            });46            await page.ClickAsync("text=Images");47            await waiter2;48        }49    }50}

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await page.ClickAsync("text=Sign in");12            var waiter = page.WaitForSelectorAsync("text=Sign in");13            var waiter1 = page.WaitForSelectorAsync("text=Sign in");14            var waiter2 = page.WaitForSelectorAsync("text=Sign in");15            var waiter3 = page.WaitForSelectorAsync("text=Sign in");16            var waiter4 = page.WaitForSelectorAsync("text=Sign in");17            await waiter.RejectOn(page.WaitForSelectorAsync("text=Create account"));18            await waiter1.RejectOn(page.WaitForSelectorAsync("text=Create account"));19            await waiter2.RejectOn(page.WaitForSelectorAsync("text=Create account"));20            await waiter3.RejectOn(page.WaitForSelectorAsync("text=Create account"));21            await waiter4.RejectOn(page.WaitForSelectorAsync("text=Create account"));22            await page.ClickAsync("text=Create account");23        }24    }25}

RejectOn

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    static async Task Main(string[] args)6    {7        using var playwright = await Playwright.CreateAsync();8        var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions9        {10        });11        var page = await browser.NewPageAsync();12        var waiter = page.WaitForNavigationAsync(new PageWaitForNavigationOptions13        {14        });15        await page.TypeAsync("input[name=q]", "playwright");16        await page.PressAsync("input[name=q]", "Enter");17        {18            await waiter;19        }20        catch (PlaywrightException ex)21        {22            Console.WriteLine(ex.Message);23        }24        await browser.CloseAsync();25    }26}

RejectOn

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.Core;8{9    {10        static async Task Main(string[] args)11        {12            using var playwright = await Playwright.CreateAsync();13            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions14            {15            });16            var page = await browser.NewPageAsync();17            await page.ClickAsync("text=Get started");18            var waiter = page.WaitForNavigationAsync();19            await page.ClickAsync("text=Core concepts");20            await waiter.RejectOn(page.WaitForTimeoutAsync(5000));21            await page.ScreenshotAsync("5.png");22        }23    }24}25Related posts: How to use Waiter class of Microsoft.Playwright.Core namespace in C#? How to use WaitForNavigationAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForSelectorAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForTimeoutAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForRequestAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForResponseAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForEventAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForFunctionAsync() method of Microsoft.Playwright.Core.Page class in C#? How to use WaitForSelectorAsync() method of Microsoft.Playwright.Core.Frame class in C#? How to use WaitForRequestAsync() method of Microsoft.Playwright.Core.Frame class in C#? How to use WaitForResponseAsync() method of Microsoft.Playwright.Core.Frame class in C#? How to use WaitForEventAsync() method of Microsoft.Playwright.Core.Frame class in C#? How to use WaitForFunctionAsync() method of Microsoft.Playwright.Core.Frame class in C#? How to use WaitForSelectorAsync() method of Microsoft.Playwright.Core.ElementHandle class in C#? How to use WaitForFunctionAsync() method of Microsoft.Playwright.Core.ElementHandle class in C#? How to use WaitForSelectorAsync() method

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5{6    {7        static async Task Main(string[] args)8        {9            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var waiter = page.WaitForNavigationAsync();15            await page.ClickAsync("a[href='/about/']");16            await waiter.RejectOn(page.WaitForNavigationAsync());17            await page.CloseAsync();18        }19    }20}21using System;22using System.Threading.Tasks;23using Microsoft.Playwright;24using Microsoft.Playwright.Core;25{26    {27        static async Task Main(string[] args)28        {29            await using var playwright = await Playwright.CreateAsync();30            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions31            {32            });33            var page = await browser.NewPageAsync();34            var waiter = page.WaitForNavigationAsync();35            await page.ClickAsync("a[href='/about/']");36            await waiter.RejectOn(page.WaitForNavigationAsync());37            await page.CloseAsync();38        }39    }40}41using System;42using System.Threading.Tasks;43using Microsoft.Playwright;44using Microsoft.Playwright.Core;45{46    {47        static async Task Main(string[] args)48        {49            await using var playwright = await Playwright.CreateAsync();50            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions51            {52            });53            var page = await browser.NewPageAsync();54            var waiter = page.WaitForNavigationAsync();55            await page.ClickAsync("a[href='/about/']");56            await waiter.RejectOn(page.WaitForNavigationAsync());57            await page.CloseAsync();58        }59    }60}

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            await 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 googleSearchBar = page.QuerySelectorAsync("input[name='q']");14            await googleSearchBar.TypeAsync("Hello World!");15            await page.WaitForSelectorAsync("input[name='btnK']").RejectOn(16                new WaiterTimeoutError("Search button not found"));17            await page.ClickAsync("input[name='btnK']");18            await Task.Delay(5000);19        }20    }21}

RejectOn

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5using Microsoft.Playwright.Helpers;6using Microsoft.Playwright.Transport.Channels;7using Microsoft.Playwright.Transport.Protocol;8using Microsoft.Playwright.Transport;9{10    {11        public static async Task Main(string[] args)12        {13            await using var playwright = await Playwright.CreateAsync();14            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions15            {16            });17            var context = await browser.NewContextAsync();18            var page = await context.NewPageAsync();19            await page.WaitForSelectorAsync("input[name='q']");20            await page.ClickAsync("input[name='q']");21            await page.WaitForSelectorAsync("input[name='q']").RejectOn("input[name='btnK']");22            await page.ClickAsync("input[name='btnK']");23        }24    }25}

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.