@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();
      }
    }
  }
  @Test
  public void testFind() {
    try {

      RowSet rs = notaBDAO.find(notaB1, 2);
      try {

        boolean b = rs.next();

        assertTrue(b);

      } catch (SQLException e) {
        fail(e.getMessage());
      }

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

    // TEST 2

    try {

      notaBDAO.find(new Allegato(), 2);
      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.find(null, 2);
      fail();
    } catch (DAOException e) {

      assertTrue(e.getMessageKey().equals(INV_OBJ_NOTA_B));
    } finally {
      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }
  }
  @Test
  public void testFindByAll() {
    try {

      RowSet rs = notaBDAO.findByAll();
      assertTrue(rs.next());

    } catch (DAOException e) {
      fail(e.getMessageKey());
    } catch (SQLException e) {
      fail(e.getMessage());
    } finally {
      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }
  }
  @Test
  public void testRemove() {
    try {

      boolean res = notaBDAO.remove(conn, notaB1.getIdNotaB());

      db.rollbackConnection(conn);

      assertTrue(res);

    } catch (DBAccessException e) {
      fail(e.getMessage());
    } catch (DAOException e) {

      fail(e.getMessage());
    } finally {

      try {
        db.closeConnection(conn);
      } catch (DBAccessException e) {
        e.printStackTrace();
      }
    }
  }
  @Test
  public void testCreate() {
    try {
      notaB2.setData(cd.getTime());
      notaBDAO.create(conn, notaB2);
      String query = NOTA_B_FIND_BYPK;

      Statement stmt2 = conn.createStatement();
      ResultSet rs =
          stmt2.executeQuery(
              "SELECT `AUTO_INCREMENT` FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'db_qualita' AND TABLE_NAME = 'nota_b'");
      rs.next();
      int id = rs.getInt(1);

      PreparedStatement stmt = conn.prepareStatement(query);
      stmt.setInt(1, id - 1);
      rs = stmt.executeQuery();

      rs.next();
      int a = rs.getInt(1);
      db.rollbackConnection(conn);
      assertTrue(rs.getInt(1) == (id - 1));

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

    // TEST 2 test null
    try {

      notaBDAO.create(null, notaB2);
      fail();
    } catch (DAOException e) {
      // return;

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

    // TEST 3 test class exception
    try {

      notaBDAO.create(conn, new Allegato());
      fail();

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