How do I generate "Smart Unit Tests" with Visual Studio 2015 Preview?

Question

How do you generate "Smart Unit Tests*" with Visual Studio 2015 Ultimate Preview?

*Microsoft's S. Somasegar announced "Smart Unit Tests" (Under the heading 'productivity') for Visual Studio 2015. This feature, based on Pex, uses code analysis to generate unit tests.

Answer 1

Here's the link to msdn documentation: Generate smart unit tests for your code

Answer 2

As of VS2015 Ultimate Preview we have not enabled this for VB.