How can to use implements AdapterViewProtocol (espresso library for testing)?

I use Espresso library 2.0 for testing in Android project, and I need to use method onData, but I have my ProductsAdapter, so I must to use: implements AdapterViewProtocol (android.support.test.espresso.action.AdapterViewProtocol),

I need to find some example, where using implements AdapterViewProtocol, help me, please, I need full and working example with implements AdapterViewProtocol for method onData.

I found just it: http://ift.tt/1EgyOTE. But I want full and working project. Help me, please.