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How to use ShouldWork method of PuppeteerSharp.Tests.NavigationTests.PageGoBackTests class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.NavigationTests.PageGoBackTests.ShouldWork

PageGoBackTests.cs

...13        }14        //TODO: This is working in puppeteer. I don't know why is hanging here.15        [PuppeteerTest("navigation.spec.ts", "Page.goBack", "should work")]16        [SkipBrowserFact(skipFirefox: true)]17        public async Task ShouldWork()18        {19            await Page.GoToAsync(TestConstants.EmptyPage);20            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");21            var response = await Page.GoBackAsync();22            Assert.True(response.Ok);23            Assert.Equal(TestConstants.EmptyPage, response.Url);24            response = await Page.GoForwardAsync();25            Assert.True(response.Ok);26            Assert.Contains("grid", response.Url);27            response = await Page.GoForwardAsync();28            Assert.Null(response);29        }30        [PuppeteerTest("navigation.spec.ts", "Page.goBack", "should work with HistoryAPI")]31        [SkipBrowserFact(skipFirefox: true)]32        public async Task ShouldWorkWithHistoryAPI()33        {34            await Page.GoToAsync(TestConstants.EmptyPage);35            await Page.EvaluateExpressionAsync(@"36              history.pushState({ }, '', '/first.html');37              history.pushState({ }, '', '/second.html');38            ");39            Assert.Equal(TestConstants.ServerUrl + "/second.html", Page.Url);40            await Page.GoBackAsync();41            Assert.Equal(TestConstants.ServerUrl + "/first.html", Page.Url);42            await Page.GoBackAsync();43            Assert.Equal(TestConstants.EmptyPage, Page.Url);44            await Page.GoForwardAsync();45            Assert.Equal(TestConstants.ServerUrl + "/first.html", Page.Url);46        }...

ShouldWork

Using AI Code Generation

1using Xunit;2using System;3using System.Threading.Tasks;4using PuppeteerSharp.Tests.Attributes;5{6    [Collection("PuppeteerLoaderFixture collection")]7    {8        [PuppeteerTest("navigation.spec.ts", "Page.goBack", "should work")]9        [Fact(Timeout = TestConstants.DefaultTestTimeout)]10        public async Task ShouldWork()11        {12            await Page.GoToAsync(TestConstants.EmptyPage);13            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");14            await Page.GoBackAsync();15            Assert.Equal(TestConstants.EmptyPage, Page.Url);16        }17    }18}19using Xunit;20using System;21using System.Threading.Tasks;22using PuppeteerSharp.Tests.Attributes;23{24    [Collection("PuppeteerLoaderFixture collection")]25    {26        [PuppeteerTest("navigation.spec.ts", "Page.goForward", "should work")]27        [Fact(Timeout = TestConstants.DefaultTestTimeout)]28        public async Task ShouldWork()29        {30            await Page.GoToAsync(TestConstants.EmptyPage);31            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");32            await Page.GoBackAsync();33            await Page.GoForwardAsync();34            Assert.Equal(TestConstants.ServerUrl + "/grid.html", Page.Url);35        }36    }37}38using Xunit;39using System;40using System.Threading.Tasks;41using PuppeteerSharp.Tests.Attributes;42{43    [Collection("PuppeteerLoaderFixture collection")]44    {45        [PuppeteerTest("navigation.spec.ts", "Page.goto", "should work")]46        [Fact(Timeout = TestConstants.DefaultTestTimeout)]47        public async Task ShouldWork()48        {49            var response = await Page.GoToAsync(TestConstants.EmptyPage);50            Assert.NotNull(response);51            Assert.True(response.Ok);52            Assert.Equal(TestConstants.EmptyPage, response.Url);53            Assert.Equal(200, response.Status);54        }55    }56}

ShouldWork

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp.Tests.NavigationTests;7using Xunit;8{9    {10        static void Main(string[] args)11        {12            PageGoBackTests pg = new PageGoBackTests();13            pg.ShouldWork();14        }15    }16}17using System;18using System.Collections.Generic;19using System.Linq;20using System.Text;21using System.Threading.Tasks;22using PuppeteerSharp.Tests.NavigationTests;23using Xunit;24{25    {26        static void Main(string[] args)27        {28            PageGoForwardTests pg = new PageGoForwardTests();29            pg.ShouldWork();30        }31    }32}33using System;34using System.Collections.Generic;35using System.Linq;36using System.Text;37using System.Threading.Tasks;38using PuppeteerSharp.Tests.NavigationTests;39using Xunit;40{41    {42        static void Main(string[] args)43        {44            PageGoToTests pg = new PageGoToTests();45            pg.ShouldWork();46        }47    }48}49using System;50using System.Collections.Generic;51using System.Linq;52using System.Text;53using System.Threading.Tasks;54using PuppeteerSharp.Tests.NavigationTests;55using Xunit;56{57    {58        static void Main(string[] args)59        {60            PageReloadTests pg = new PageReloadTests();61            pg.ShouldWork();62        }63    }64}65using System;66using System.Collections.Generic;67using System.Linq;68using System.Text;69using System.Threading.Tasks;70using PuppeteerSharp.Tests.NetworkTests;71using Xunit;72{73    {74        static void Main(string[] args)75        {76            PageSetCacheEnabledTests pg = new PageSetCacheEnabledTests();77            pg.ShouldWork();78        }79    }80}

ShouldWork

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4using PuppeteerSharp.Tests.NavigationTests;5{6    {7        static async Task Main(string[] args)8        {9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11                Args = new string[] { "--no-sandbox" }12            });13            var page = await browser.NewPageAsync();14            var pageGoBackTests = new PuppeteerSharp.Tests.NavigationTests.PageGoBackTests();15            await pageGoBackTests.ShouldWork(page);16            await browser.CloseAsync();17        }18    }19}

ShouldWork

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        [PuppeteerTest("navigation.spec.ts", "Page.goBack", "should work")]7        public async Task ShouldWork()8        {9            await Page.GoToAsync(TestConstants.EmptyPage);10            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");11            await Page.GoBackAsync();12            Assert.Equal(TestConstants.EmptyPage, Page.Url);13        }14    }15}16using System;17using System.Threading.Tasks;18using PuppeteerSharp;19{20    {21        [PuppeteerTest("navigation.spec.ts", "Page.goForward", "should work")]22        public async Task ShouldWork()23        {24            await Page.GoToAsync(TestConstants.EmptyPage);25            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");26            await Page.GoBackAsync();27            await Page.GoForwardAsync();28            Assert.Equal(TestConstants.ServerUrl + "/grid.html", Page.Url);29        }30    }31}32using System;33using System.Threading.Tasks;34using PuppeteerSharp;35{36    {37        [PuppeteerTest("navigation.spec.ts", "Page.goBack", "should work")]38        public async Task ShouldWork()39        {

ShouldWork

Using AI Code Generation

1var result = await page.GoBackAsync();2await page.CloseAsync();3return result;4}5public async Task ShouldWork()6{7    {8        Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }9    };10    using (var browser = await Puppeteer.LaunchAsync(options))11    using (var page = await browser.NewPageAsync())12    {13        await page.PdfAsync("google.pdf");14    }15}16public async Task ShouldWork()17{18    {19        Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }20    };21    using (var browser = await Puppeteer.LaunchAsync(options))22    using (var page = await browser.NewPageAsync())23    {24        await page.PdfAsync("google.pdf");25    }26}

StackOverFlow community discussions

Questions

Discussion

Puppeteer renders blank pages when not setting breakpoints

Convert HTML string to image

Puppeteer Sharp submit form

How can I get computed style property from element with Pupeetersharp

Thread safety of LaunchAsync() in Puppeteer

PuppeteerSharp best practices

PuppeteerSharp passing parmaters to evaluateFunctionAsync()

How to fill a form inside an iframe with Puppeteer-Sharp

Is there a remove page method corresponding to NewPageAsync() in PuppeteerSharp?

You could try some wait for navigation options. Something like this:

await page.SetContentAsync(
    htmlDoc.SaveToString(), 
    new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation. Networkidle0 }});

https://stackoverflow.com/questions/59866450/puppeteer-renders-blank-pages-when-not-setting-breakpoints

Thanks all for your responses. I used HtmlRenderer external dll (library) to achieve the same and found below code for the same.

Here is the code for this

public void ConvertHtmlToImage()
{
   Bitmap m_Bitmap = new Bitmap(400, 600);
   PointF point = new PointF(0, 0);
   SizeF maxSize = new System.Drawing.SizeF(500, 500);
   HtmlRenderer.HtmlRender.Render(Graphics.FromImage(m_Bitmap),
                                           "<html><body><p>This is some html code</p>"
                                           + "<p>This is another html line</p></body>",
                                            point, maxSize);

   m_Bitmap.Save(@"C:\Test.png", ImageFormat.Png);
}

https://stackoverflow.com/questions/17832304/convert-html-string-to-image

In puppeteer sharp that's being solved using extension methods.

await page.QuerySelectorAsync("#my-form")
    .EvaluateFunctionAsync("form => form.submit()");

https://stackoverflow.com/questions/67965261/puppeteer-sharp-submit-form

I found a few issues in your code. First a few small errors in your javascript code: you don't need to async and an extra brackets.

var jsCode = @"() => {
  const element = document.querySelector('.productDetail svg[viewbox=""0 0 16 16""]');
  return window.getComputedStyle(element).getPropertyValue('color');
}";

https://stackoverflow.com/questions/64876755/how-can-i-get-computed-style-property-from-element-with-pupeetersharp

You don't need those brackets.

await canvas.EvaluateFunctionAsync(@"(e, canvasImage)=> {
  var ctx=e.getContext('2d');
  var img=new Image(); 
  img.onload=function() {
    ctx.drawImage(img,0,0);};
    img.src=canvasImage
  }
}", canvasImage);

https://stackoverflow.com/questions/69000555/puppeteersharp-passing-parmaters-to-evaluatefunctionasync

This may be due to CORS.

Try the following code.

var options = new LaunchOptions
{
    Devtools = true,
    Args = new[]
    {
        "--disable-web-security",
        "--disable-features=IsolateOrigins,site-per-process",
    },
};

https://stackoverflow.com/questions/58741745/how-to-fill-a-form-inside-an-iframe-with-puppeteer-sharp

You can close the page using CloseAsync:

var page = browser.NewPageAsync();
////
await page.CloseAsync();

An using block will also close the page:

using (var page = await new browser.PageAsync())
{
///
}

Puppeteer-Sharp v2.0.3+ also supports await using blocks

await using (var page = await new browser.PageAsync())
{
 ///
}

https://stackoverflow.com/questions/61517099/is-there-a-remove-page-method-corresponding-to-newpageasync-in-puppeteersharp

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