public void Single_Table_inheritance_TPH()
{
var buyer = new Buyers(Guid.NewGuid().ToString("N"));
buyer.Sex = 1;
buyer.Sex2 = 2;
buyer.Tel = "123";
buyer.UName = "zhangsan";
Assert.AreEqual(true, buyer.Validator().Success);
var buyerRepository = LocalServiceLocator.GetService <IBuyersRepository>();
buyerRepository.Add(buyer);
var result = buyerRepository.Context.Commit();
Assert.AreEqual(1, result.ResultData);
}