You can publish the Player to Knowledge Center with Test It! mode included. When you launch the Player through Knowledge Center, you can play Test It! mode. None of the play modes, including Test It! are tracked, and the results are not included in any Knowledge Center reports.
When a Player with Test It! mode is published to or imported into Knowledge Center, [Test] is appended to the title. This is to differentiate it from a regular Player for learning purposes.