@Test
public void testBuyerBehaviour() throws Exception {
SingletonRepository.getRPWorld();
final BarMaidNPC barmaidConfigurator = new BarMaidNPC();
final StendhalRPZone zone = new StendhalRPZone("testzone");
barmaidConfigurator.configureZone(zone, null);
final SpeakerNPC barMaid = (SpeakerNPC) zone.getNPCList().get(0);
assertThat(barMaid.getName(), is("Siandra"));
final Engine engine = barMaid.getEngine();
engine.setCurrentState(ConversationStates.ATTENDING);
Sentence sentence = new SentenceImplementation(new Expression("offer", ExpressionType.VERB));