@Test
  public void whenUpdateView_thenViewShouldReflectChanges() {
    attribute.updateView(view, checkedItemPositions);

    assertThat(
        SparseBooleanArrayUtils.toSet(view.getCheckedItemPositions()),
        equalTo(checkedItemPositions));
  }
 @Before
 public void setUp() {
   checkedItemPositions = SparseBooleanArrayUtils.toSet(anySparseBooleanArray());
 }