XUnit.net

xUnit.net
xUnit.net 1.9.1 GUI on Windows
Original authors	James Newkirk, Brad Wilson
Developers	Microsoft, Outercurve Foundation, .NET Foundation
Stable release	2.6.21 / November 18, 2023 (2023-11-18)
Written in	C#
Operating system	Windows, macOS, Linux
Platform	.NET Framework, .NET Core, Mono
Type	Unit testing tool
License	Apache License 2.0
Website	xunit.net
Repository	github.com/xunit/xunit/

xUnit.net is a free and open-source unit testing tool for the .NET Framework, written by the original author of NUnit. The software can also be used with .NET Core and ² Mono.

It is licensed under Apache License 2.0, and the source code is available on GitHub.³ xUnit.net works with Xamarin, ReSharper, CodeRush, and TestDriven.NET.⁴ It is authored by James Newkirk and Brad Wilson.⁵

Example of an xUnit.net test fixture:

using Xunit;

public class MyTests
{
    [Fact]
    public void MyTest()
    {
        Assert.Equal(4, 2 + 2);
    }
}

After you compile the test, run it in your console:

C:\MyTests\bin\Debug>xunit.console MyTestLibrary.dll
xUnit.net console test runner (64-bit .NET 2.0.50727.0)
Copyright (C) 2007-11 Microsoft Corporation.

xunit.dll:     Version 1.9.1.0
Test assembly: C:\MyTests\bin\Debug\MyTestLibrary.dll

1 total, 0 failed, 0 skipped, took 0.302 seconds