About x Unit. net 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), …

What's New in v3? 2025 August 14 This guide aims to be a comprehensive list of the new features added to v3, written for existing developers who are using v2. In addition to this new …

Sharing Context between Tests 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 …

The xUnit.net integration with Microsoft Testing Platform comes at three levels: You can replace the default xUnit.net command line experience with the Microsoft Testing Platform command …

Running Tests in Parallel Background Running unit tests in parallel is a new feature in xUnit.net version 2. There are two essential motivations that drove us to not only enable parallelization, …

Config with xunit.runner.json 2025 July 30 Configuration files can be used to configure xUnit.net on a per test-assembly basis.

Enabling code coverage With xUnit.net v3 and MTP, there is a solution for code coverage that's supported directly by Microsoft. One of the big new features for MTP is for the ability of …

Writing a Custom Runner Reporter 2024 December 16 As of version 0.5.0-pre.27, we are now supporting custom runner reporters with xUnit.net v3. Before discussing the design of the …