@Before
  public void init() {

    notaBDAO = new NotaBDAO();

    try {
      db = new DBAccess();
      conn = db.getConnection();

      notaB1 = new NotaB();
      notaB1.setIdNotaB(1);
      notaB1.setDescrizione("asd");
      notaB1.setData(cd.getTime());
      notaB1.setIdStrumento(2);
      notaB1.setIdUtente(1);

      notaB2 = new NotaB();
      // notaB2.setIdNotaB(2);
      notaB2.setDescrizione("asd");
      // notaB2.setData(cd.getTime());
      notaB2.setIdStrumento(2);
      notaB2.setIdUtente(1);

    } catch (DBAccessException e) {
      fail(e.getMessage());
    }
  }
  @Test
  public void testUpdate() {

    try {

      NotaB notaBU = new NotaB();
      notaBU.setDescrizione("asd2");

      boolean test = notaBDAO.update(conn, notaBU, notaB1);
      db.rollbackConnection(conn);

      assertTrue(test);

    } catch (DAOException e) {
      fail(e.getMessage());
    } catch (DBAccessException e) {
      fail(e.getMessage());
    } finally {
      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }

    // TEST 2

    try {

      notaBDAO.update(conn, new Allegato(), notaB1);
      fail();
    } catch (DAOException e) {

      assertTrue(e.getMessageKey().equals(INV_OBJ_NOTA_B));
    } finally {
      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }

    // TEST 3

    try {

      notaBDAO.update(conn, null, notaB1);
      fail();

    } catch (DAOException e) {
      // return;
      assertTrue(e.getMessageKey().equals(INV_OBJ_NOTA_B));
    } finally {
      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }
  }