Check if appnext was successfully integrated in phonegap, Android

I want to publish ads from AppNext to my app. I built my app with Cordova/Phonegap. I don't use Eclipse or Android Studio, or any other IDE. I use only Notepad++ and Windows Explorer :D. I followed the instructions for integrating AppNext in phonegap (I put the jar into the Libs, modified the manifest..). Now, how can I test if works? I compiled and I don't see any ads..

** I have internet connection..