KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use EmulationManager class of PuppeteerSharp package

Best Puppeteer-sharp code snippet using PuppeteerSharp.EmulationManager

Page.cs

Source:Page.cs

...31    [DebuggerDisplay("Page {Url}")]32    public class Page : IDisposable33    {34        private readonly TaskQueue _screenshotTaskQueue;35        private readonly EmulationManager _emulationManager;36        private readonly Dictionary<string, Delegate> _pageBindings;37        private readonly TaskCompletionSource<bool> _closeCompletedTcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);38        private TaskCompletionSource<bool> _sessionClosedTcs;39        private readonly TimeoutSettings _timeoutSettings;40        private static readonly Dictionary<string, decimal> _unitToPixels = new Dictionary<string, decimal> {41            {"px", 1},42            {"in", 96},43            {"cm", 37.8m},44            {"mm", 3.78m}45        };46        private Page(47            CDPSession client,48            Target target,49            TaskQueue screenshotTaskQueue)50        {51            Client = client;52            Target = target;53            Keyboard = new Keyboard(client);54            Mouse = new Mouse(client, Keyboard);55            Touchscreen = new Touchscreen(client, Keyboard);56            Coverage = new Coverage(client);57            //_fileChooserInterceptors = new ConcurrentDictionary<Guid, TaskCompletionSource<FileChooser>>();58            _timeoutSettings = new TimeoutSettings();59            _emulationManager = new EmulationManager(client);60            _pageBindings = new Dictionary<string, Delegate>();61            //_workers = new Dictionary<string, Worker>();62            Accessibility = new Accessibility(client);63            _screenshotTaskQueue = screenshotTaskQueue;64            _ = target.CloseTask.ContinueWith((arg) =>65            {66                try67                {68                    Close?.Invoke(this, EventArgs.Empty);69                }70                finally71                {72                    IsClosed = true;73                    _closeCompletedTcs.TrySetResult(true);...

EmulationManager.cs

Source:EmulationManager.cs

...3using PuppeteerSharp.Media;4using PuppeteerSharp.Messaging;5namespace PuppeteerSharp6{7    internal class EmulationManager8    {9        private readonly CDPSession _client;10        private bool _hasTouch;11        private bool _emulatingMobile;12        public EmulationManager(CDPSession client)13        {14            _client = client;15        }16        internal async Task<bool> EmulateViewport(ViewPortOptions viewport)17        {18            var mobile = viewport.IsMobile;19            var width = viewport.Width;20            var height = viewport.Height;21            var deviceScaleFactor = viewport.DeviceScaleFactor;22            var screenOrientation = viewport.IsLandscape ?23                new ScreenOrientation24                {25                    Angle = 90,26                    Type = ScreenOrientationType.LandscapePrimary...

EmulationManager

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5    ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)6});7var page = await browser.NewPageAsync();8await page.ScreenshotAsync("test.png");9await browser.CloseAsync();10var browserFetcher = new BrowserFetcher();11await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);12var browser = await Puppeteer.LaunchAsync(new LaunchOptions13{14    ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)15});16var page = await browser.NewPageAsync();17await page.ScreenshotAsync("test.png");18await browser.CloseAsync();19var browserFetcher = new BrowserFetcher();20await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);21var browser = await Puppeteer.LaunchAsync(new LaunchOptions22{23    ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)24});25var page = await browser.NewPageAsync();26await page.ScreenshotAsync("test.png");27await browser.CloseAsync();28var browserFetcher = new BrowserFetcher();29await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);30var browser = await Puppeteer.LaunchAsync(new LaunchOptions31{32    ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)33});34var page = await browser.NewPageAsync();35await page.ScreenshotAsync("test.png");36await browser.CloseAsync();37var browserFetcher = new BrowserFetcher();38await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);

EmulationManager

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            MainAsync().GetAwaiter().GetResult();9        }10        static async Task MainAsync()11        {12            {13                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",14                Args = new string[] { "--disable-gpu", "--no-sandbox" }15            };16            using (var browser = await Puppeteer.LaunchAsync(options))17            {18                using (var page = await browser.NewPageAsync())19                {20                    var title = await page.GetTitleAsync();21                    Console.WriteLine(title);22                }23            }24        }25    }26}27at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options)28at PuppeteerSharpExample.Program.MainAsync()29{30    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",31    Args = new string[] { "--disable-gpu", "--no-sandbox" }32};33at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options)34at PuppeteerSharpExample.Program.MainAsync()35{36    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",37    Args = new string[] { "--disable-gpu", "--no-sandbox", "--disable-dev-shm-usage" }38};39at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options)40at PuppeteerSharpExample.Program.MainAsync()

EmulationManager

Using AI Code Generation

1using PuppeteerSharp;2{3    {4        static void Main(string[] args)5        {6            MainAsync(args).GetAwaiter().GetResult();7        }8        static async Task MainAsync(string[] args)9        {10            {11                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",12            };13            using (var browser = await Puppeteer.LaunchAsync(options))14            using (var page = await browser.NewPageAsync())15            {16                await page.ScreenshotAsync("google.png");17            }18        }19    }20}21using PuppeteerSharp;22{23    {24        static void Main(string[] args)25        {26            MainAsync(args).GetAwaiter().GetResult();27        }28        static async Task MainAsync(string[] args)29        {30            {31                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",32            };33            using (var browser = await Puppeteer.LaunchAsync(options))34            using (var page = await browser.NewPageAsync())35            {36                await page.ScreenshotAsync("google.png");37            }38        }39    }40}41using PuppeteerSharp;42{43    {44        static void Main(string[] args)45        {46            MainAsync(args).GetAwaiter().GetResult();47        }48        static async Task MainAsync(string[] args)49        {50            {51                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",52            };53            using (var browser = await Puppeteer.LaunchAsync(options))54            using (var page = await browser.NewPageAsync())55            {

EmulationManager

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);10            var browser = await Puppeteer.LaunchAsync(new LaunchOptions11            {12                Args = new string[] { "--start-maximized" }13            });14            var page = await browser.NewPageAsync();15            await page.ScreenshotAsync("google.png");16            await browser.CloseAsync();17        }18    }19}20using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24    {25        static async Task Main(string[] args)26        {27            Console.WriteLine("Hello World!");28            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);29            var browser = await Puppeteer.LaunchAsync(new LaunchOptions30            {31                Args = new string[] { "--start-maximized" }32            });33            var page = await browser.NewPageAsync();34            await page.ScreenshotAsync("google.png");35            await browser.CloseAsync();36        }37    }38}39using System;40using System.Threading.Tasks;41using PuppeteerSharp;42{43    {44        static async Task Main(string[] args)45        {46            Console.WriteLine("Hello World!");47            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);48            var browser = await Puppeteer.LaunchAsync(new LaunchOptions49            {50                Args = new string[] { "--start-maximized" }51            });52            var page = await browser.NewPageAsync();53            await page.ScreenshotAsync("google.png");54            await browser.CloseAsync();55        }56    }57}58using System;59using System.Threading.Tasks;60using PuppeteerSharp;

EmulationManager

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10            });11            var page = await browser.NewPageAsync();12            await page.EmulateAsync(new EmulationManager13            {14                UserAgent = "Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1",15                {16                }17            });18            await page.WaitForSelectorAsync("input[name='q']");19            await page.TypeAsync("input[name='q']", "puppeteer-sharp");20            await page.ScreenshotAsync("screenshot.png");21        }22    }23}24using System;25using System.Threading.Tasks;26using PuppeteerSharp;27{28    {29        static async Task Main(string[] args)30        {31            var browser = await Puppeteer.LaunchAsync(new LaunchOptions32            {33            });34            var page = await browser.NewPageAsync();35            await page.EmulateAsync(new EmulationManager

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.