Presenter.java

public void loadData() {
    // The network request might be handled in a different thread so make sure Espresso knows
    // that the app is busy until the response is handled.
    EspressoIdlingResource.increment(); // App is busy until further notice
    
    // let's get the data 
    mRepository.getData(new LoadDataCallback() {
        @Override
        public void onDataLoaded(Data data) {
            // now that the data has been loaded, we can mark the app as idle
            // first, make sure the app is still marked as busy then decrement, there might be cases
            // when other components finished their asynchronous tasks and marked the app as idle
            if (!EspressoIdlingResource.getIdlingResource().isIdleNow()) {
                EspressoIdlingResource.decrement(); // Set app as idle.
            }
            processData(data);
        }
    });
}