How to use ShouldAllowTransparency method of PuppeteerSharp.Tests.ScreenshotTests.PageScreenshotTests class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.ScreenshotTests.PageScreenshotTests.ShouldAllowTransparency

PageScreenshotTests.cs

Source: PageScreenshotTests.cs Github

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...241 await Task.WhenAll(closeTasks);242 }243 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should allow transparency")]244 [SkipBrowserFact(skipFirefox: true)]245 public async Task ShouldAllowTransparency()246 {247 await using (var page = await Context.NewPageAsync())248 {249 await page.SetViewportAsync(new ViewPortOptions250 {251 Width = 100,252 Height = 100253 });254 await page.GoToAsync(TestConstants.EmptyPage);255 var screenshot = await page.ScreenshotDataAsync(new ScreenshotOptions256 {257 OmitBackground = true258 });259 Assert.True(ScreenshotHelper.PixelMatch("transparent.png", screenshot));...

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ShouldAllowTransparency

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1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp.Tests.Attributes;5using PuppeteerSharp.Xunit;6using Xunit;7using Xunit.Abstractions;8{9 [Collection(TestConstants.TestFixtureCollectionName)]10 {11 public PageScreenshotTests(ITestOutputHelper output) : base(output)12 {13 }14 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work")]15 public async Task ShouldWork()16 {17 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");18 var screenshot = await Page.ScreenshotDataAsync();19 Assert.NotNull(screenshot);20 }21 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work for jpeg")]22 public async Task ShouldWorkForJpeg()23 {24 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");25 var screenshot = await Page.ScreenshotDataAsync(new ScreenshotOptions { Type = ScreenshotType.Jpeg });26 Assert.NotNull(screenshot);27 }28 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work with a delay")]29 public async Task ShouldWorkWithADelay()30 {31 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");32 var screenshot = await Page.ScreenshotDataAsync(new ScreenshotOptions { FullPage = true, Delay = 100 });33 Assert.NotNull(screenshot);34 }35 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should run in parallel")]36 public async Task ShouldRunInParallel()37 {38 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");

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ShouldAllowTransparency

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1var page = await browser.NewPageAsync();2await page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });3await page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");4var screenshot = await page.ScreenshotDataAsync(fullPage: true);5Assert.True(ScreenshotHelper.PixelMatch("grid", screenshot) < 0.1);6var page = await browser.NewPageAsync();7await page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });8await page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");9var screenshot = await page.ScreenshotDataAsync(fullPage: true);10Assert.True(ScreenshotHelper.PixelMatch("grid", screenshot) < 0.1);11var page = await browser.NewPageAsync();12await page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });13await page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");14var screenshot = await page.ScreenshotDataAsync(fullPage: true);15Assert.True(ScreenshotHelper.PixelMatch("grid", screenshot) < 0.1);16var page = await browser.NewPageAsync();17await page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });18await page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");19var screenshot = await page.ScreenshotDataAsync(fullPage: true);20Assert.True(ScreenshotHelper.PixelMatch("grid", screenshot) < 0.1);21var page = await browser.NewPageAsync();22await page.SetViewportAsync(new ViewPortOptions { Width = 500, Height = 500 });23await page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");24var screenshot = await page.ScreenshotDataAsync(fullPage: true);25Assert.True(ScreenshotHelper.PixelMatch("grid", screenshot) < 0.1);

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ShouldAllowTransparency

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1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp;5using PuppeteerSharp.Media;6{7 {8 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work")]9 public async Task ShouldWork()10 {11 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");12 var screenshot = await Page.ScreenshotDataAsync();13 Assert.NotNull(screenshot);14 }15 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should take fullPage screenshots")]16 public async Task ShouldTakeFullPageScreenshots()17 {18 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");19 var screenshot = await Page.ScreenshotDataAsync(new ScreenshotOptions20 {21 });22 Assert.NotNull(screenshot);23 }24 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work with clip rect")]25 public async Task ShouldWorkWithClipRect()26 {27 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");28 var screenshot = await Page.ScreenshotDataAsync(new ScreenshotOptions29 {30 {31 }32 });33 Assert.NotNull(screenshot);34 }35 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should run in parallel")]36 public async Task ShouldRunInParallel()37 {38 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");39 {40 Page.ScreenshotDataAsync(),41 Page.ScreenshotDataAsync(),42 Page.ScreenshotDataAsync(),43 Page.ScreenshotDataAsync()44 };45 var screenshots = await Task.WhenAll(promises);46 Assert.Equal(4, screenshots.Length);47 foreach (var screenshot in screenshots)48 {49 Assert.NotNull(screenshot);50 }51 }52 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should take screenshot when Node is removed")]

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ShouldAllowTransparency

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1using System;2{3 {4 static void Main(string[] args)5 {6 Console.WriteLine("Hello World!");7 }8 }9}10using System;11using System.IO;12using System.Threading.Tasks;13using Xunit;14using Xunit.Abstractions;15{16 [Collection("PuppeteerLoaderFixture collection")]17 {18 public PageScreenshotTests(ITestOutputHelper output) : base(output)19 {20 }21 public async Task ShouldWork()22 {23 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");24 var screenshot = await Page.ScreenshotDataAsync();25 Assert.NotNull(screenshot);26 }27 public async Task ShouldTakeFullPageScreenshots()28 {29 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");30 var screenshot = await Page.ScreenshotDataAsync(fullPage: true);31 Assert.NotNull(screenshot);32 }33 public async Task ShouldTakeScreenshotsWhenSomeResourcesFailedToLoad()34 {35 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");36 await Page.EvaluateFunctionAsync(@"() => {37 delete window['requestIdleCallback'];38 delete window['cancelIdleCallback'];39 }");40 await Page.SetRequestInterceptionAsync(true);41 Page.Request += async (sender, e) =>42 {43 if (e.Request.ResourceType == ResourceType.Image)44 {45 await e.Request.AbortAsync();46 }47 {48 await e.Request.ContinueAsync();49 }50 };51 var screenshot = await Page.ScreenshotDataAsync(fullPage: true);52 Assert.NotNull(screenshot);53 }54 public async Task ShouldRunInParallel()55 {56 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");57 var tasks = new Task<byte[]>[5];58 for (var i = 0; i < tasks.Length; ++i)59 {60 tasks[i] = Page.ScreenshotDataAsync();61 }62 await Task.WhenAll(tasks);63 }64 public async Task ShouldTakeScreenshotOfHiddenElements()65 {

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ShouldAllowTransparency

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1using PuppeteerSharp;2using System;3using System.IO;4using System.Threading.Tasks;5{6 {7 public async Task TestShouldAllowTransparency()8 {9 var options = new LaunchOptions { Headless = true };10 using (var browser = await Puppeteer.LaunchAsync(options))11 {12 var page = await browser.NewPageAsync();13 await page.GoToAsync("data:text/​html,<div style='width:100px;height:100px;background-color:red;opacity:0.5'></​div>");14 var screenshot = await page.ScreenshotDataAsync(new ScreenshotOptions { FullPage = true, OmitBackground = true });15 Assert.True(ShouldAllowTransparency(screenshot));16 }17 }18 private bool ShouldAllowTransparency(byte[] screenshotData)19 {20 using (var stream = new MemoryStream(screenshotData))21 using (var image = System.Drawing.Image.FromStream(stream))22 {23 var bitmap = new System.Drawing.Bitmap(image);24 for (var x = 0; x < bitmap.Width; x++)25 {26 for (var y = 0; y < bitmap.Height; y++)27 {28 var pixel = bitmap.GetPixel(x, y);29 if (pixel.A != 0 && pixel.A != 255)30 {31 return true;32 }33 }34 }35 return false;36 }37 }38 }39}40using PuppeteerSharp;41using System;42using System.IO;43using System.Threading.Tasks;44{45 {46 public async Task TestShouldAllowTransparency()47 {48 var options = new LaunchOptions { Headless = true };49 using (var browser = await Puppeteer.LaunchAsync(options))50 {51 var page = await browser.NewPageAsync();52 await page.GoToAsync("data:text/​html,<div style='width:100px;height:100px;background-color:red;opacity:0.5'></​div>");53 var screenshot = await page.ScreenshotDataAsync(new ScreenshotOptions { FullPage = true, OmitBackground = true });54 Assert.True(ShouldAllowTransparency(screenshot));55 }56 }57 private bool ShouldAllowTransparency(byte[]

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp.Tests.Attributes;4using Xunit;5using Xunit.Abstractions;6{7 [Collection(TestConstants.TestFixtureCollectionName)]8 {9 public PageScreenshotTests(ITestOutputHelper output) : base(output)10 {11 }12 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work")]13 public async Task ShouldWork()14 {15 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");16 byte[] screenshot = await Page.ScreenshotDataAsync();17 Assert.True(ScreenshotHelper.PixelMatch("screenshot-sanity.png", screenshot) < 0.1);18 }19 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should take screenshot of page with transparent background")]20 public async Task ShouldTakeScreenshotOfPageWithTransparentBackground()21 {22 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");23 await Page.EvaluateExpressionAsync(@"() => {24 const style = document.createElement('style');25 style.type = 'text/​css';26 style.innerHTML = 'body { background-color: rgba(0, 0, 0, 0); }';27 document.head.appendChild(style);28 }");29 byte[] screenshot = await Page.ScreenshotDataAsync();30 Assert.True(ScreenshotHelper.PixelMatch("screenshot-transparent.png", screenshot) < 0.1);31 }32 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should run in parallel")]33 public async Task ShouldRunInParallel()34 {35 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");36 await Task.WhenAll(37 Page.ScreenshotDataAsync(),38 Page.ScreenshotDataAsync(),39 Page.ScreenshotDataAsync(),40 Page.ScreenshotDataAsync()41 );42 }43 [PuppeteerTest("screenshot.spec.ts", "Page.screenshot", "should work when Node.js introduces a delay")]44 public async Task ShouldWorkWhenNodeIntroducesADelay()45 {46 await Page.GoToAsync(TestConstants.ServerUrl + "/​grid.html");

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using below,

using var page = browser.NewPageAsync().Result;

page.TypeAsync("input[name='elementname']", valuetobeset).Wait();
https://stackoverflow.com/questions/67332554/set-input-value-with-puppeteer-sharp

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