public class DeptDaoTestUsingRule{
    @Rule
    public MyConnectionRule myConnection = new MyConnectionRule();

    @Test
    public void save(){
        //connection is being used to save the data
        //myConnection.getConnection().save();
    }

    @Test
    public void delete(){
        //Connection required
        //delete operation
        //myConnection.getConnection()
    }
 }