Verify.DocNet

April 9, 2026 · View on GitHub

Extends Verify to allow verification of documents via DocNet.

See Milestones for release notes. Converts pdf documents to png for verification.

This library uses SixLabors ImageSharp for png generation. For commercial application support visit SixLabors/Pricing.

NuGet

https://nuget.org/packages/Verify.DocNet

Usage

Enable Verify.DocNet

[ModuleInitializer]
public static void Initialize()
{
    VerifyDocNet.Initialize();
    VerifyImageMagick.RegisterComparers(
        threshold: 0.13,
        ImageMagick.ErrorMetric.PerceptualHash);
}

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VerifyImageMagick.RegisterComparers (provided by https://github.com/VerifyTests/Verify.ImageMagick) allows minor image changes to be ignored.

Verify a file

[Test]
public Task VerifyPdf() =>
    VerifyFile("sample.pdf");

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Verify a Stream

[Test]
public Task VerifyPdfStream()
{
    var stream = File.OpenRead("sample.pdf");
    return Verify(stream, "pdf");
}

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Result

Samples.VerifyPdf#01.verified.png:

PreserveTransparency

[Test]
public Task VerifyPreserveTransparency() =>
    VerifyFile("sample.pdf")
        .PreserveTransparency();

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PageDimensions

[Test]
public Task VerifyPageDimensions() =>
    VerifyFile("sample.pdf")
        .PageDimensions(new(1080, 1920));

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VerifySinglePage

[Test]
public Task VerifyFirstPage()
{
    var stream = File.OpenRead("sample.pdf");
    return Verify(stream, "pdf").SinglePage(0);
}

[Test]
public Task VerifySecondPage()
{
    var stream = File.OpenRead("sample.pdf");
    return Verify(stream, "pdf").SinglePage(1);
}