MSTest, Microsoft Testing Framework, is a unit testing framework for .NET applications. It allows you to write tests, use Test Explorer, create test suites, and apply the red, green, refactor pattern to write code.

This is a fully supported, open source and cross-platform test framework with which to write tests targeting .NET Framework, .NET Core, .NET, UWP and WinUI on Windows, Linux, and Mac.

We welcome any kind of contribution!

• Contributing provides guidance on how to best contribute
• Dev Guide explains how to build and test
• Documentation contains information about history, context and supported or unsupported features. It also gather the various official documentation pages on learn.microsoft.com about MSTest.

MSTest is shipped as NuGet packages that can be added to your projects. The following table lists all available packages.

Name	Description	Stable version	Preview version	Dogfood version
MSTest	This package is a meta package that simplifies referencing all recommended MSTest packages.			Azure Artifacts
MSTest.TestFramework	This package includes the libraries for writing tests with MSTest. To ensure discovery and execution of your tests, install the `MSTest.TestAdapter`` package.			Azure Artifacts
MSTest.TestAdapter	This package includes the adapter logic to discover and run tests. For access to the testing framework, install the MSTest.TestFramework package.			Azure Artifacts
MSTest.Analyzers	This package includes code analyzers and code fixes for MSTest.			Azure Artifacts

MSTest is licensed under the MIT license.

The LICENSE and ThirdPartyNotices in any downloaded archives are authoritative.