Code29.Pomade 1.1.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Code29.Pomade --version 1.1.0
                    


                    

                
NuGet\Install-Package Code29.Pomade -Version 1.1.0
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="Code29.Pomade" Version="1.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Code29.Pomade" Version="1.1.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Code29.Pomade" />
                    


                            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 Code29.Pomade --version 1.1.0
                    


                    

                
#r "nuget: Code29.Pomade, 1.1.0"
#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 Code29.Pomade@1.1.0
#: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=Code29.Pomade&version=1.1.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Code29.Pomade&version=1.1.0
                    


                            Install as a Cake Tool

Pomade - making (async) Dapper code testable

This project is a fork of the Pomade project by Matt Oswald (moswald) with updated Dapper dependencies for .Net 10. All credit to him for his prior work. The original project is here and the NuGet page is here. The only changes made are updates to dependencies, comments and formatting.

About

Dapper is a great "mini ORM" library, but it's implemented almost entirely with extension methods which makes calling code very difficult to test. Pomade helps by forwarding calls to Dapper through virtual methods.

Also it helps by only implementing the async methods. *cough* 😇

Explanation

Dapper extends the IDbConnection interface with methods like QueryAsync:

IDbConnection _connection = new SqlConnection();

public Task<Dog> LookupDog(Guid guid)
    => _connection.QueryAsync<Dog>("select Age = @Age, Id = @Id", new { Age = (int?)null, Id = guid });

Unfortunately, this makes LookupDog() difficult to test as _connection is not easily replaced by most mocking frameworks.

Pomade helps get around this limitation by instead making those extension methods virtual members, and thus, mockable. To use, pass your IDbConnection reference to the Pomade class constructor and use that as your data access layer:

Pomade _connection = new Pomade(new SqlConnection());

public Task<Dog> LookupDog(Guid guid)
    => _connection.QueryAsync<Dog>("select Age = @Age, Id = @Id", new { Age = (int?)null, Id = guid });

Other than the type of the _connection field, the important stuff is exactly the same. The real difference comes in your tests. Since Pomade.QueryAsync<T> is a virtual method, you can inject Pomade instances into your tests and once again enjoy the ability to easily mock the database layer away.

Test example using NSubstitute:

var db = Substitute.ForPartsOf<Pomade>();
db.QueryAsync<Dog>(Arg.Any<string>(), Arg.Any<object>())
    .Returns(new Dog("Fido"));

Performance

"Dapper is stupid fast, aren't you just slowing it down by making all the calls virtual?"

Nope.

Method Mean Error StdDev Scaled
Dapper 216.1 us 0.7570 us 0.5910 us 1.00
Pomade 216.6 us 1.8440 us 1.5398 us 1.00
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. 
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
1.1.0 41 9/10/2026