Microsoft's Visual Web Developer 2010 Express (VWD 2010 Express), by default does not come with a built in unit testing solution. However the ability is there to use unit tests with the Express version as can be seen when creating a new MVC project. Tech spec stuff: Microsoft Windows 7 Microsoft Visual Studio 2010 Express, Version 10.0.40219.1 SP1 Microsfot .NET Framework Version 4.0.30319 SP1 Getting started with xUnit xUnit is a "developer testing framework, built to support Test Driven Development (TDD)". There are other unit testing frameworks available (MSTest, nUnit, etc.). There are pro's to each and some better than others but xUnit is pretty straightforward to get up and running with the VWD 2010 Express version. Download and Install xUnit The xUnit project can be found at: http://xunit.codeplex.com/ . Downloads are available from http://xunit.codeplex.com/releases/view/62840 . Download the recommended version (currently 1.8 at time of writi