class DeviceListActivity extends AppCompatActivity implements DeviceListPresenter.View {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        RLog.d();
        binding = DataBindingUtil.setContentView(this, R.layout.activity_device_list);

        // setup scan recyclerView
        setupScanRecyclerView();

        // create presenter
        createPresenter();

        // setup rx event
        setupConnectEvent();

    }

}

class DeviceListActivityTest implements DeviceListPresenter.View {

    private DeviceListPresenter presenter;

    @Test
    public void onCreate() throws Exception {

        presenter.startBluetooth();
    }

}