@Test
public void getStateThatIsEmptyTest() throws Exception {

    // Setup:
    State state = stateFactory.createNew(VALUE_FACTORY.createIRI("http://mobi.com/states/0"));
    RepositoryConnection conn = repo.getConnection();
    conn.add(state.getModel());
    Model result = manager.getState(state.getResource());
    assertTrue(result.isEmpty());
    conn.close();
}