@Test
public void getSelectedItem() {
selectionModel.setSelectedItem(PERSON_B);
Assert.assertEquals(PERSON_B, selectionModel.getSelectedItem().get());
selectionModel.deselect(PERSON_B);
Assert.assertFalse(selectionModel.getSelectedItem().isPresent());
}
@Test
public void selectDeselect() {
selectionModel.select(PERSON_B);
selectionModel.deselect(PERSON_B);
assertFalse(selectionModel.getSelectedItem().isPresent());
assertFalse(selectionModel.isSelected(PERSON_A));
assertFalse(selectionModel.isSelected(PERSON_B));
assertFalse(selectionModel.isSelected(PERSON_C));
assertFalse(selectionModel.getSelectedItem().isPresent());
assertEquals(Arrays.asList(PERSON_B, null), selectionChanges);
}