/// <summary>
            /// Determines whether the specified instance is equal to this instance.
            /// </summary>
            public override bool Equals(object obj)
            {
                EmployeeInfo objToCompare = obj as EmployeeInfo;

                if (objToCompare == null)
                {
                    return(false);
                }

                return(this.GetHashCode() == objToCompare.GetHashCode());
            }
    [TestMethod()] public void TestLoadAndSaveEmployeeInfo()
    {
        ModelContext.beginTrans();
        try {
            CsModelMappers.EmployeeInfoDBMapper pdb = new CsModelMappers.EmployeeInfoDBMapper();

            long count = pdb.RecordCount();

            if (pdb.SelectFromObjectName != pdb.ManagedTableName)
            {
                long countFromSelectObject = pdb.dbConn.getLngValue("select count(*) from " + pdb.SelectFromObjectName);
                Assert.AreEqual(count, countFromSelectObject,
                                "Count of records in managedTableName {0} and SelectFromObjectName {1} should be equal, as there needs to be exactly 1 to 1 match between records in managed table and selectFromObject.",
                                pdb.ManagedTableName, pdb.SelectFromObjectName);
            }

            if (count == 0)
            {
                Assert.Inconclusive("No EmployeeInfo in database, table is empty");
            }
            else
            {
                /**
                 * using (DataContext ctx = DBUtils.Current().dbContext()) {
                 *
                 *      var query = ctx.ExecuteQuery<EmployeeInfo>(@"SELECT * FROM " + pdb.SelectFromObjectName ).Skip(1).Take(1);
                 *      var lst = query.ToList();
                 *
                 *      Assert.AreEqual(lst.Count, 1, "Expected to receive 1 record, got: " + lst.Count);
                 *
                 * }
                 * todo: fix boolean fields by generating properties of original fields
                 **/
                object pid = ModelContext.CurrentDBUtils.getObjectValue("select top 1 " + pdb.pkFieldName + " from " + pdb.ManagedTableName);

                EmployeeInfo p  = pdb.findByKey(pid);
                EmployeeInfo p2 = (EmployeeInfo)p.copy();

                //Test equality and hash codes
                Assert.AreEqual(p.GetHashCode(), p2.GetHashCode());
                Assert.AreEqual(p, p2);

                p.isDirty = true;                  // force save
                pdb.save(p);

                // now reload object from database
                p = null;
                p = pdb.findByKey(pid);

                //test fields to be equal before and after save
                Assert.IsTrue(p.PrEmployeeInfoId == p2.PrEmployeeInfoId, "Expected Field EmployeeInfoId to be equal");
                Assert.IsTrue(p.PrEIEmployeeId.GetValueOrDefault() == p2.PrEIEmployeeId.GetValueOrDefault(), "Expected Field EIEmployeeId to be equal");
                Assert.IsTrue(p.PrSalary.GetValueOrDefault() == p2.PrSalary.GetValueOrDefault(), "Expected Field Salary to be equal");
                Assert.IsTrue(p.PrAddress == p2.PrAddress, "Expected Field Address to be equal");

                p.isDirty = true;                 //to force save
                ModelContext.Current.saveModelObject(p);

                p = ModelContext.Current.loadModelObject <EmployeeInfo>(p.Id);
                p.loadObjectHierarchy();

                string json = JsonConvert.SerializeObject(p, Formatting.Indented,
                                                          new JsonSerializerSettings()
                {
                    ReferenceLoopHandling = ReferenceLoopHandling.Ignore
                });
                System.IO.FileInfo jf = new System.IO.FileInfo(".\\EmployeeInfo.json");
                System.IO.File.WriteAllText(jf.FullName, json);

                if (pdb.isPrimaryKeyAutogenerated)
                {
                    p.isNew   = true;
                    p.isDirty = true;

                    try {
                        pdb.save(p);
                    } catch (System.Exception e) {
                        Assert.IsTrue(e.Message.ToUpper().Contains("UNIQUE INDEX") || e.Message.Contains("Violation of UNIQUE KEY constraint"),
                                      "Insert statement produced error other than violation of unique key:" + e.Message);
                    }
                }
            }
        } finally {
            ModelContext.rollbackTrans(); // 'Nothing should be saved to the database!
        }
    }