Built tests are not added to the Visual Studio Test Explorer window

Question

1. I set up the SpecFlow plug-in for the Visual Studio 2013.
2. I created new Feature Item and build it.

Result: built test is not shown in the Test

Answer 1

if the tests are not showing in the test explorer you need to install NUnit test adapter :

go to Tools->Extensions and updates ->Online->Visual Studio Gallery->Tools->Testing and select NUnit Test Adapter