public void Bug63920_Test1()
        {
            ReInitDb();
            using (VehicleDbContext context = new VehicleDbContext())
            {
                context.Database.Delete();
                context.Database.Initialize(true);

                context.Vehicles.Add(new Car {
                    Id = 1, Name = "Mustang", Year = 2012, CarProperty = "Car"
                });
                context.Vehicles.Add(new Bike {
                    Id = 101, Name = "Mountain", Year = 2011, BikeProperty = "Bike"
                });
                context.SaveChanges();

                var list = context.Vehicles.ToList();

                int records = -1;
                using (MySqlConnection conn = new MySqlConnection(context.Database.Connection.ConnectionString))
                {
                    conn.Open();
                    MySqlCommand cmd = new MySqlCommand("SELECT COUNT(*) FROM Vehicles", conn);
                    records = Convert.ToInt32(cmd.ExecuteScalar());
                }

                Assert.AreEqual(context.Vehicles.Count(), records);
            }
        }
        public void IdentityTest()
        {
            using (VehicleDbContext context = new VehicleDbContext())
            {
                if (context.Database.Exists())
                {
                    context.Database.Delete();
                }
                context.Database.CreateIfNotExists();

                // Identity as Guid
                Manufacturer nissan = new Manufacturer
                {
                    Name = "Nissan"
                };
                Manufacturer ford = new Manufacturer
                {
                    Name = "Ford"
                };
                context.Manufacturers.Add(nissan);
                context.Manufacturers.Add(ford);

                // Identity as Integer
                Distributor dis1 = new Distributor
                {
                    Name = "Distributor1"
                };
                Distributor dis2 = new Distributor
                {
                    Name = "Distributor2"
                };
                context.Distributors.Add(dis1);
                context.Distributors.Add(dis2);

                context.SaveChanges();

                using (MySqlConnection conn = new MySqlConnection(context.Database.Connection.ConnectionString))
                {
                    conn.Open();

                    // Validates Guid
                    MySqlCommand    cmd = new MySqlCommand("SELECT * FROM Manufacturers", conn);
                    MySqlDataReader dr  = cmd.ExecuteReader();
                    if (!dr.HasRows)
                    {
                        Assert.Fail("No records found");
                    }
                    while (dr.Read())
                    {
                        string name = dr.GetString(1);
                        switch (name)
                        {
                        case "Nissan":
                            Assert.AreEqual(dr.GetGuid(0), nissan.ManufacturerId);
                            Assert.AreEqual(dr.GetGuid(2), nissan.GroupIdentifier);
                            break;

                        case "Ford":
                            Assert.AreEqual(dr.GetGuid(0), ford.ManufacturerId);
                            Assert.AreEqual(dr.GetGuid(2), ford.GroupIdentifier);
                            break;

                        default:
                            Assert.Fail();
                            break;
                        }
                    }
                    dr.Close();

                    // Validates Integer
                    cmd = new MySqlCommand("SELECT * FROM Distributors", conn);
                    dr  = cmd.ExecuteReader();
                    if (!dr.HasRows)
                    {
                        Assert.Fail("No records found");
                    }
                    while (dr.Read())
                    {
                        string name = dr.GetString(1);
                        switch (name)
                        {
                        case "Distributor1":
                            Assert.AreEqual(dr.GetInt32(0), dis1.DistributorId);
                            break;

                        case "Distributor2":
                            Assert.AreEqual(dr.GetInt32(0), dis2.DistributorId);
                            break;

                        default:
                            Assert.Fail();
                            break;
                        }
                    }
                    dr.Close();
                }
            }
        }