### Question:
ItemServiceImpl implements ItemService { @Override public void removeItem(Item item) { Query query = em.createQuery( "UPDATE Item a SET a.sold = true " + "WHERE a.id = :wantedid"); query.setParameter("wantedid", item.getId()).executeUpdate(); }  @Override List<Item> getBySearch(String keyword, String category, String state, float sprice, float fprice, int p); @Override List<Item> getHighlight(String user); @Override List<Item> getAll(); @Override String create(Item i); @Override void removeItem(Item item); @Override int updateItem(Item item); @Override List<Item> getItem(String usrID); @Override List<Item> getItemid(String id); void addItem(Item item);  }### Answer:
@Test void removeItemTest() { int size = initDataStore4(); Item item = new Item("1236","Le seigneur des anneaux",30,"livre","un vrai bouquin","neuf"); Item item2 = new Item("1236","Le pianiste",50,"livre","un bouquin bof","neuf"); em.persist(item); em.persist(item2); itemserviceimpl.removeItem(item2); assertEquals(size+2, itemserviceimpl.getAll().size()); }