Meziantou.Framework.SnapshotTesting.ImageSharp 2.0.7

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Meziantou.Framework.SnapshotTesting.ImageSharp --version 2.0.7
                    


                    

                
NuGet\Install-Package Meziantou.Framework.SnapshotTesting.ImageSharp -Version 2.0.7
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Meziantou.Framework.SnapshotTesting.ImageSharp" Version="2.0.7" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Meziantou.Framework.SnapshotTesting.ImageSharp" Version="2.0.7" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Meziantou.Framework.SnapshotTesting.ImageSharp" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Meziantou.Framework.SnapshotTesting.ImageSharp --version 2.0.7
                    


                    

                
#r "nuget: Meziantou.Framework.SnapshotTesting.ImageSharp, 2.0.7"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Meziantou.Framework.SnapshotTesting.ImageSharp@2.0.7
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Meziantou.Framework.SnapshotTesting.ImageSharp&version=2.0.7
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Meziantou.Framework.SnapshotTesting.ImageSharp&version=2.0.7
                    


                            Install as a Cake Tool

Meziantou.Framework.SnapshotTesting.ImageSharp

Meziantou.Framework.SnapshotTesting.ImageSharp extends Meziantou.Framework.SnapshotTesting with support for SixLabors.ImageSharp images, enabling snapshot validation of Image objects stored as PNG, JPEG, BMP, TIFF, or WebP files.

Licensing

This package is MIT-licensed, but it takes a hard dependency on SixLabors.ImageSharp, which since v3 is published under the Six Labors Split License: AGPL-3.0 unless you hold a commercial licence. Installing this package therefore brings that obligation with it, and your build will emit a "No Six Labors license found" warning until you set SixLaborsLicenseKey, set SixLaborsLicenseFile, or add a sixlabors.lic file.

If that does not suit your project, Meziantou.Framework.SnapshotTesting.SkiaSharp offers the same image snapshot support on top of SkiaSharp, which is MIT-licensed.

Setup

Call AddImageSharp() on your SnapshotSettings to register the ImageSharp serializer and comparer:

using System.Runtime.CompilerServices;
using Meziantou.Framework.SnapshotTesting;
using Meziantou.Framework.SnapshotTesting.ImageSharp;

internal static class SnapshotConfiguration
{
    [ModuleInitializer]
    internal static void Initialize()
    {
        SnapshotSettings.Default.AddImageSharp();
    }
}

Then validate images from your tests:

public sealed class SampleTests
{
    [Fact]
    public void ValidateImage()
    {
        using var image = Image.Load("sample.png");
        Snapshot.Validate(image, SnapshotType.Png);
    }
}

Register once for the whole test assembly, not inside a test method. SnapshotSettings.Default is shared by every test in the process and its collections are not safe for concurrent modification, so calling AddImageSharp() from a test races against any other test that is serializing a snapshot at the same time. Repeated calls also append a serializer and a converter every time.

Image comparison

By default, images are compared pixel-by-pixel (exact comparison). To allow minor rendering differences, configure a Structural Similarity Index (SSIM) threshold:

// In the module initializer shown above
SnapshotSettings.Default.AddImageSharp(new ImageComparisonSettings
{
    SimilarityThreshold = 0.99f, // 0.0 = completely different, 1.0 = identical
});

When SimilarityThreshold is set, the mean SSIM across the R, G, and B channels is computed and must be greater than or equal to the threshold for the images to be considered equal.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed.  net11.0 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.0.9 37 9/6/2026
2.0.8 38 9/3/2026
2.0.7 45 9/3/2026
2.0.6 89 8/30/2026
2.0.5 88 8/29/2026
2.0.4 84 8/23/2026
2.0.3 101 8/16/2026
2.0.2 97 8/9/2026
2.0.1 121 7/8/2026
2.0.0 113 7/5/2026
1.0.16 109 7/5/2026
1.0.15 123 6/28/2026
1.0.14 121 6/22/2026
1.0.13 126 6/14/2026
1.0.12 109 6/13/2026
1.0.11 106 6/13/2026
1.0.10 127 6/7/2026
1.0.9 108 5/31/2026
1.0.8 120 5/24/2026
1.0.7 117 5/23/2026
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