FixtureBase 0.3.0

.NET Standard 2.0 .NET Framework 4.5
There is a newer version of this package available.
See the version list below for details.
dotnet add package FixtureBase --version 0.3.0
NuGet\Install-Package FixtureBase -Version 0.3.0
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="FixtureBase" Version="0.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FixtureBase --version 0.3.0
#r "nuget: FixtureBase, 0.3.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install FixtureBase as a Cake Addin
#addin nuget:?package=FixtureBase&version=0.3.0

// Install FixtureBase as a Cake Tool
#tool nuget:?package=FixtureBase&version=0.3.0


FixtureBase cuts the cost of unit testing. Intelligent, rule-driven, autofaking fixtures get you straight to your test with all your dependencies setup and ready to go.

Don't spend hours on code to mock a dozen dependencies. Write your test code, let FixtureBase create the dependencies for you. FixtureBase constructs your UnitUnderTest for full end-to-end tests of your codebase, with external dependencies auto-faked and automatically injected in just the right place; even constructor dependencies that are several layers deep.

You just write your tests:

public class FixtureBaseExample : FixtureBaseWithDbAndHttpFor<AUseCase>
    public void UUTSendsDataToDb()
        var newDatum = new Datum{Id=99, Name="New!" };



    public void UUTreturnsDataFromDbQuerySingleColumn()
        var dbData = new[] { "row1", "row2", "row3", "row4"};


    public async Task UUTGetHttpReturnsDataFromService()
        var contentFromService = "IGotThis!";
            .Setup(m => true)
            .Returns(new HttpResponseMessage(HttpStatusCode.OK) {Content = new StringContent(contentFromService)});

        (await UnitUnderTest.GetHttp()).ShouldBe(contentFromService);


The included examples demonstrate FixtureBases for applications which depend on Ado.Net IDbConnections and on HttpClient network connections.

Construction is done by

Faking is done by

For more tools focussed on cutting the cost of unit testing, see also:

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

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Version Downloads Last updated
0.3.2 599 9/6/2021
0.3.0 1,188 11/26/2018
0.2.2 642 11/23/2018

     0.3.0 AnythingActivator.Instances as well as Rules. Breaking: refactored constructors & FixtureBase startup
     0.2.2 FixtureBase
     0.2.1 ActivateInstance Rule can activate a Func<Type> as well as a Type
     0.2.0 ActivateAnything exposes LastActivationTree and LastErrorList after a call to New() fix non-public constructors. ChooseConstructorWith(Most|Fewest)ParametersAttribute.PreferPublic defaults to true. ActivateAnything first release.