private static final TLState TEST_TL_STATE = new TLState("rrGGyyyyggrryryr");
@Test
public void testChangeState() throws IOException {
TrafficLight tl = repo.getByID("0");
ChangeLightsStateQuery q = tl.queryChangeLightsState();
q.setValue(TEST_TL_STATE);
q.run();
assertEquals(TEST_TL_STATE, tl.queryReadState().get());
}