Hi BogdanJeler. You can log a case through supportline.microfocus.com/mf_incident_add.aspx
TestNG framework is currently inspired by JUnit testing, but includes extra functionality to make your testing more powerful.
Silk Central now has a runner, that allows you to utilize this testing framework, and run your TestNG scripts in Silk Central.
If you would like a copy of the the TestNG runner please log a case through SupportLine.
We will provide you with the instructions you need to install and run this in Silk Central.