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How to use EmulateVisionDeficiencyAsync method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.EmulateVisionDeficiencyAsync

Page.cs

Source:Page.cs

...1777        /// <summary>1778        /// Simulates the given vision deficiency on the page.1779        /// </summary>1780        /// <example>1781        /// await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);1782        /// await Page.ScreenshotAsync("Achromatopsia.png");1783        /// </example>1784        /// <param name="type">The type of deficiency to simulate, or <see cref="VisionDeficiency.None"/> to reset.</param>1785        /// <returns>A task that resolves when the message has been sent to the browser.</returns>1786        public Task EmulateVisionDeficiencyAsync(VisionDeficiency type)1787            => Client.SendAsync("Emulation.setEmulatedVisionDeficiency", new EmulationSetEmulatedVisionDeficiencyRequest1788            {1789                Type = type,1790            });1791        /// <summary>1792        /// Changes the timezone of the page.1793        /// </summary>1794        /// <param name="timezoneId">Timezone to set. See <seealso href="https://cs.chromium.org/chromium/src/third_party/icu/source/data/misc/metaZones.txt?rcl=faee8bc70570192d82d2978a71e2a615788597d1" >ICUâs `metaZones.txt`</seealso>1795        /// for a list of supported timezone IDs. Passing `null` disables timezone emulation.</param>1796        /// <returns>The viewport task.</returns>1797        public async Task EmulateTimezoneAsync(string timezoneId)1798        {1799            try1800            {...

PageEmulateVisionDeficiencyTests.cs

Source:PageEmulateVisionDeficiencyTests.cs

...16        public async Task ShouldWork()17        {18            await Page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });19            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");20            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.None);21            var screenshot = await Page.ScreenshotDataAsync();22            Assert.True(ScreenshotHelper.PixelMatch("screenshot-sanity.png", screenshot));23            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);24            screenshot = await Page.ScreenshotDataAsync();25            Assert.True(ScreenshotHelper.PixelMatch("vision-deficiency-achromatopsia.png", screenshot));26            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.BlurredVision);27            screenshot = await Page.ScreenshotDataAsync();28            Assert.True(ScreenshotHelper.PixelMatch("vision-deficiency-blurredVision.png", screenshot));29            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.Deuteranopia);30            screenshot = await Page.ScreenshotDataAsync();31            Assert.True(ScreenshotHelper.PixelMatch("vision-deficiency-deuteranopia.png", screenshot));32            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.Protanopia);33            screenshot = await Page.ScreenshotDataAsync();34            Assert.True(ScreenshotHelper.PixelMatch("vision-deficiency-protanopia.png", screenshot));35            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.Tritanopia);36            screenshot = await Page.ScreenshotDataAsync();37            Assert.True(ScreenshotHelper.PixelMatch("vision-deficiency-tritanopia.png", screenshot));38            await Page.EmulateVisionDeficiencyAsync(VisionDeficiency.None);39            screenshot = await Page.ScreenshotDataAsync();40            Assert.True(ScreenshotHelper.PixelMatch("screenshot-sanity.png", screenshot));41        }42    }43}...

VisionDeficiency.cs

Source:VisionDeficiency.cs

...3using Newtonsoft.Json.Converters;4namespace PuppeteerSharp5{6    /// <summary>7    /// Types of vision deficiency to emulate using <see cref="Page.EmulateVisionDeficiencyAsync(VisionDeficiency)"/>8    /// </summary>9    [JsonConverter(typeof(StringEnumConverter))]10    public enum VisionDeficiency11    {12        /// <summary>13        /// None14        /// </summary>15        [EnumMember(Value = "none")]16        None,17        /// <summary>18        /// Achromatopsia19        /// </summary>20        [EnumMember(Value = "achromatopsia")]21        Achromatopsia,...

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))10            using (var page = await browser.NewPageAsync())11            {12                await page.EmulateVisionDeficiencyAsync(VisionDeficiencyType.Achromatopsia);13                await page.ScreenshotAsync("1.png");14            }15        }16    }17}

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))10            using (var page = await browser.NewPageAsync())11            {12                await page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);13            }14        }15    }16}17using System;18using System.Threading.Tasks;19using PuppeteerSharp;20{21    {22        static async Task Main(string[] args)23        {24            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);25            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))26            using (var page = await browser.NewPageAsync())27            {28                await page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);29            }30        }31    }32}33using System;34using System.Threading.Tasks;35using PuppeteerSharp;36{37    {38        static async Task Main(string[] args)39        {40            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);41            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))42            using (var page = await browser.NewPageAsync())43            {44                await page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);45            }46        }47    }48}49using System;50using System.Threading.Tasks;51using PuppeteerSharp;52{53    {54        static async Task Main(string[] args)55        {

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync().Wait();9        }10        static async Task MainAsync()11        {12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14            });15            var page = await browser.NewPageAsync();16            await page.EmulateVisionDeficiencyAsync(VisionDeficiency.Achromatopsia);17            await page.ScreenshotAsync("1.png");18        }19    }20}

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        public static async Task EmulateVisionDeficiencyAsync(this Page page, VisionDeficiency deficiency)7        {8            await page.EvaluateFunctionAsync(@"(deficiency) => {9                const id = 'puppeteer_vision_deficiency';10                const style = document.createElement('style');11                style.id = id;12                    :root {13                        filter: ${deficiency === 'normal' ? 'none' : `url('#${deficiency}')`};14                    }15                `;16                document.head.appendChild(style);

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        public static async Task Run()7        {8            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))9            using (var page = await browser.NewPageAsync())10            {11                await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Achromatopsia);12                await page.ScreenshotAsync("1.png");13            }14        }15    }16}17using System;18using System.Threading.Tasks;19using PuppeteerSharp;20{21    {22        public static async Task Run()23        {24            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))25            using (var page = await browser.NewPageAsync())26            {27                await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Deuteranopia);28                await page.ScreenshotAsync("2.png");29            }30        }31    }32}33using System;34using System.Threading.Tasks;35using PuppeteerSharp;36{37    {38        public static async Task Run()39        {40            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))41            using (var page = await browser.NewPageAsync())42            {43                await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Protanopia);44                await page.ScreenshotAsync("3.png");45            }46        }47    }48}49using System;50using System.Threading.Tasks;51using PuppeteerSharp;52{53    {54        public static async Task Run()55        {56            using (var browser = await Puppeteer.Launch

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });10            var page = await browser.NewPageAsync();11            await page.EmulateVisionDeficiencyAsync(VisionDeficiencyType.Achromatopsia);12            await page.ScreenshotAsync("1.png");13            await page.CloseAsync();14            await browser.CloseAsync();15        }16    }17}18using System;19using System.Threading.Tasks;20using PuppeteerSharp;21{22    {23        static async Task Main(string[] args)24        {25            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);26            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });27            var page = await browser.NewPageAsync();28            await page.EmulateVisionDeficiencyAsync(VisionDeficiencyType.Achromatopsia);29            await page.ScreenshotAsync("2.png");30            await page.CloseAsync();31            await browser.CloseAsync();32        }33    }34}35using System;36using System.Threading.Tasks;37using PuppeteerSharp;38{39    {40        static async Task Main(string[] args)41        {42            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);43            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });44            var page = await browser.NewPageAsync();45            await page.EmulateVisionDeficiencyAsync(VisionDeficiencyType.Achromatopsia);46            await page.ScreenshotAsync("3.png");47            await page.CloseAsync();48            await browser.CloseAsync();49        }50    }51}

EmulateVisionDeficiencyAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Achromatopsia);14            await page.ScreenshotAsync("Achromatopsia.png");15            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Achromatomaly);16            await page.ScreenshotAsync("Achromatomaly.png");17            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Deuteranopia);18            await page.ScreenshotAsync("Deuteranopia.png");19            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Deuteranomaly);20            await page.ScreenshotAsync("Deuteranomaly.png");21            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Protanopia);22            await page.ScreenshotAsync("Protanopia.png");23            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Protanomaly);24            await page.ScreenshotAsync("Protanomaly.png");25            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Tritanopia);26            await page.ScreenshotAsync("Tritanopia.png");27            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.Tritanomaly);28            await page.ScreenshotAsync("Tritanomaly.png");29            await page.EmulateVisionDeficiencyAsync(VisionDeficiencies.None);30            await page.ScreenshotAsync("None.png");31            await browser.CloseAsync();32        }33    }34}

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