xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework. Written by the original inventor of NUnit v2, xUnit.net is the latest technology for unit testing C#, F#, VB.NET and other .NET languages. xUnit.net works with ReSharper, CodeRush, TestDriven.NET and Xamarin. It is part of the .NET Foundation, and operates under their code of conduct. It is licensed under Apache 2 (an OSI approved license).
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Continuous integration builds are available online via TeamCity (sponsored by CenturyLink Cloud).
CodeRush Test Runner support is provided by DevExpress.
The xUnit.net logo was designed by Nathan Young.
|xUnit.net||Console||MSBuild||TestDriven.NET||Visual Studio 2||Resharper||Devices|
|Desktop Class Library||1.9.2+||✓ 3a||✓ 3a||✓ 3a||✓ 3b (2012+)||✓ 3c|
|Portable Class Library||2.0+||✓ 3a||✓ 3a||✓ 3a||✓ 3b (2012+)||✓ 3c||✓ 3d|
|.NET CLI and .NET Core
(Windows, Linux, OS X)
|2.2 beta 2+||✓ 3e||✓ 3e (2015+)|
(Windows 10, Windows 10 Mobile)
|2.1+||✓ 3b (2015+)||✓ 3d|
(Windows 8.1, Windows Phone 8.1)
|2.0+||✓ 3b (2013+)||✓ 3d|
|Windows Phone 8 (Silverlight)||2.0+||✓ 3d|
|Xamarin MonoAndroid 1||2.0+||✓ 3d|
|Xamarin MonoTouch (iOS Classic) 1||2.0+||✓ 3d|
|Xamarin iOS Unified 1||2.0+||✓ 3d|
Note: A GUI runner ships with xUnit.net 1.9.2, but is no longer supported.
1 Requires Xamarin for Visual Studio or Xamarin Studio
2 Visual Studio support requires Visual Studio Community, or a paid-for version of Visual Studio (Expression editions are not supported)
3 Test runner source code availability:
For information on contributing to xUnit.net, please read the governance document.
Portions copyright Jérémie "Garuma" Laval.
Portions copyright Novell, Inc.
Portions copyright .NET Foundation
Portions copyright The Legion Of The Bouncy Castle
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