What are Visual Studio unit testing playlists?

Playlists in Visual Studio? Some music, please? Not quite! Instead, playlists in Visual Studio are related to unit testings. These playlists were introduced in Visual Studio 2012 Update 2 I believe (so about a year ago), but I've recently learned not all developers or testers are aware of them.

Shortly put, playlists in Visual Studio are just what they are in music: you give a playlist a name, and add any unit tests (your "songs", if you will) into it to run the tests as groups. Previously, you could have added your unit tests into groups, but playlists are easier to create and more lean.

For more information, check out MSDN documentation on running unit tests in the Test Explorer.

Hope this helps!