Add user test case

Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Main.cs

@@ -33,6 +33,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Unitadf1yaadfa.Init();
             CrossDatabase03.Init();
             CrossDatabase02.Init();
             UnitDynamicCoread12321.Init();

Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Unitadf1yaadfa.cs

@@ -0,0 +1,42 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    internal class Unitadf1yaadfa
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+        }
+       
+        public class UnitOrderfafaadfa
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public string Name { get; set; }
+            public decimal Price { get; set; }
+            [SugarColumn(IsNullable = true)]
+            public DateTime? CreateTime { get; set; }
+            [SugarColumn(IsNullable = true)]
+            public int CustomId { get; set; } 
+        }
+     
+        public class UnitOrderItemafdaa
+        {
+            [SqlSugar.SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int ItemId { get; set; }
+            public int OrderId { get; set; }
+            public decimal? Price { get; set; }
+            [SqlSugar.SugarColumn(IsNullable = true)]
+            public DateTime? CreateTime { get; set; }
+            [Navigate(NavigateType.OneToOne, nameof(OrderId))]
+            public UnitOrderfafaadfa Order { get; set; }
+        }
+    }
+}