Reduce need to augment production code to make recyclerview more testable

[mrk-han]

Is this suggested best practice or can we fix this sample to provide better ways of interacting with RecyclerViews and making assertions on the viewholder?

    @Override
    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
        if (position == mDataSet.size() / 2 /* calculate middle element position */) {
            viewHolder.setIsInTheMiddle(true);
            viewHolder.getTextView().setText(mContext.getResources().getString(R.string.middle));
        } else {
            viewHolder.setIsInTheMiddle(false);
            viewHolder.getTextView().setText(mDataSet.get(position));
        }
    }

From : https://github.com/googlesamples/android-testing/blob/master/ui/espresso/RecyclerViewSample/app/src/androidTest/java/com/example/android/testing/espresso/RecyclerViewSample/RecyclerViewSampleTest.java