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), …

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 …

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 …

We have shipped several prerelease versions over the last 6 months, and accumulated a good amount of documentation for both users who are migrating from Core Framework v2 as well …

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 …

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 …

The current schema is online at https://xunit.net/schema/current/xunit.runner.schema.json, which can be set in the JSON file to aid with intellisense from development IDEs like Visual Studio …

With the new Microsoft Testing Platform support (MTP) in xUnit.net v3, getting code coverage has changed when running with MTP. This document discusses how to enable code coverage for …