@Test(expected = IllegalArgumentException.class)
public void shouldNotAllowVisitationIfNoVisitor() throws Exception {
altimaModel.accept(null);
}
@Test
public void shouldAllowVisitation() throws Exception {
ItemVisitor visitor = Mockito.mock(ItemVisitor.class);
altimaModel.accept(visitor);
Mockito.verify(visitor).visit(altimaModel);
}
