Basically in the code in github I do not see usage of mDataManager

Please double check it

And point file/linenumber if I missed something

Ok

that trigger a listener in the activity

that perform the mDataManager.request....

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) setSupportActionBar(toolbar) fab.setOnClickListener { view -> DataManager().requestWebService() } }

If you need to declare each new instance a mock you need constrctor mock

Please check docs and I will join later this evening

I didn t know about mock constructor, but that just make sens when I think about it.

as I said, first time mocking instrument tests.... thank you very much

I will explain this in the github issue for others