xUnit.net is a free, open source, community-focused unit testing tool for C#, F#, and Visual Basic. xUnit.net v3 supports .NET 8.0 or later, and .NET Framework 4.7.2 or later.

Getting Started with xUnit.net v3 2025 August 13 In this document, we will demonstrate getting started with xUnit.net v3 when targeting .NET 8 (or later) and/or .NET Framework 4.7.2 (or …

Getting Started with xUnit.net v2 2025 July 4 In this document, we will demonstrate getting started with xUnit.net v2 when targeting .NET 8 (or later) and/or .NET Framework 4.7.2 (or later), …

This design was done so that third party assertion libraries did not need to create any hard dependencies on xUnit.net, as most are designed to be cross-test framework. When …

Unlike our support for VSTest, our support for Microsoft Testing Platform is built natively into xUnit.net v3. If you want to rely solely on Microsoft Testing Platform support, you can remove …

It is common for unit test classes to share setup and cleanup code (often called "test context"). xUnit.net offers several methods for sharing this setup and cleanup code, depending on the …

Apr 5, 2025 · In some scenarios this used to hard-crash the test process. xunit/xunit#3220 BUG: We fixed an issue where the randomizer provided by Randomizer.Current was not thread safe.

Note The default runner reporter will be whichever one is registered with a RunnerSwitch value of default. If the developer does not register one, xUnit.net will fall back to the built-in default, …

This package contains the xUnit.net assertion library (i.e., the Assert class). This is a separate NuGet package, because some developers wish to use the xUnit.net framework and test …

The two previous libraries (xunit.runner.reporters and xunit.runner.utility) were merged into a single library (xunit.v3.runner.utility). Most of the types in this library have retained the Xunit …