Add unit test

Src/Asp.Net/SqlServerTest/SqlServerTest.csproj

@@ -97,6 +97,7 @@
     <Compile Include="Models\OrderItem.cs" />
     <Compile Include="Demo\Demo0_SqlSugarClient.cs" />
     <Compile Include="Models\ViewOrder.cs" />
+    <Compile Include="UnitTest\UnitOneToOneN.cs" />
     <Compile Include="UnitTest\UCustom024.cs" />
     <Compile Include="UnitTest\UCustomNavigate01.cs" />
     <Compile Include="UnitTest\Models\DSPersonScheduleModel.cs" />

Src/Asp.Net/SqlServerTest/UnitTest/Main.cs

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            UnitOneToOneN.Init();
             ULock.Init();
             UnitManyToMany2.Init();
             UOneManyMany5.init();

Src/Asp.Net/SqlServerTest/UnitTest/UnitOneToOneN.cs

@@ -0,0 +1,104 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SqlSugar;
+namespace OrmTest
+{
+    public class UnitOneToOneN
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+
+
+            //建表 
+
+            if (!db.DbMaintenance.IsAnyTable("StudentA", false))
+
+            {
+
+                db.CodeFirst.InitTables<StudentA>();
+
+            }
+
+            if (!db.DbMaintenance.IsAnyTable("SchoolA", false))
+
+            {
+
+                db.CodeFirst.InitTables<SchoolA>();
+
+            }
+
+            if (!db.DbMaintenance.IsAnyTable("RoomA", false))
+
+            {
+
+                db.CodeFirst.InitTables<RoomA>();
+
+            }
+
+
+
+            //用例代码 
+
+            var result = db.Queryable<StudentA>()
+
+                .Select(student => student.School.Room.RoomId)
+
+                .ToSqlString();//用例代码
+
+            if (!result.Contains("student.[SchoolNo] = SchoolA0.[SchoolNo]")) 
+            {
+                throw new Exception("unit error");
+            }
+        }
+
+        public class StudentA
+
+        {
+
+            [SugarColumn(IsPrimaryKey = true)]
+
+            public int StudentId { get; set; }
+
+            public int SchoolNo { get; set; }
+
+            [Navigate(NavigateType.OneToOne, nameof(SchoolNo), nameof(SchoolA.SchoolNo))]
+
+            public SchoolA School { get; set; }
+
+
+
+        }
+
+        public class SchoolA
+
+        {
+
+            [SugarColumn(IsPrimaryKey = true)]
+
+            public int SchoolId { get; set; }
+
+            public int SchoolNo { get; set; }
+
+            public int RoomId { get; set; }
+
+            [Navigate(NavigateType.OneToOne, nameof(RoomId))]
+
+            public RoomA Room { get; set; }
+
+        }
+
+        public class RoomA
+
+        {
+
+            [SugarColumn(IsPrimaryKey = true)]
+
+            public int RoomId { get; set; }
+
+        }
+    }
+}