Some of the reasons why we went with xUnit: NUnit was not fully compatible with .NET Core 2 at the time; We wanted to move away from MS Test, as the team preferred the xUnit and NUnit way of writing tests; xUnit is aimed at improving test isolation and trying to codify a set of rules to establish a testing standard. Let's start by creating a class library project, targeting .NET 4.5.2 (or later). An open source, community-focused unit testing tool. JUnit vs xUnit: What are the differences? Other versions include JUnit, a very well known testing framework for Java. Open Visual Studio, and choose File > New > Project: Note: The examples were done with xUnit.net v2.2 and Visual Studio 2017. When comparing NUnit vs xUnit.NET, the Slant community recommends xUnit.NET for most people.In the question“What are the best unit testing frameworks for .NET?” xUnit.NET is ranked 1st while NUnit is ranked 2nd. The version numbers, paths, and Visual Studio UI may differ for you, depending on which version you're using. Create a class library project. What is JUnit? XUnit actually refers to a grouping of frameworks, but we will be focusing on the C# version. JUnit is a simple framework to write repeatable tests. This Extensible Stylesheet Language Transformations can transform a xUnit.net v2 XML test results file into a JUnit test results file. XUnit also uses a more modern and unique style of testing, by doing away with the standard [test] [testfixture] terminology and using new fancy tags like Facts and Theories. The most important reason people chose xUnit.NET is: What is xUnit? xUnit.net v2 XML Format to JUnit Format CircleCI can only parse test results in the JUnit format. It is an instance of the xUnit architecture for unit testing frameworks. A programmer-oriented testing framework for Java.