public void testGetItem() {
    RealmResults<AllTypes> resultList = testRealm.where(AllTypes.class).findAll();
    RealmAdapter realmAdapter = new RealmAdapter(getContext(), resultList, automaticUpdate);

    assertEquals(resultList.get(0).getColumnString(), realmAdapter.getItem(0).getColumnString());
    assertEquals(resultList.size(), realmAdapter.getRealmResults().size());
    assertEquals(
        resultList.last().getColumnString(),
        realmAdapter.getRealmResults().last().getColumnString());
  }