Add unit test

Src/Asp.Net/SqliteTest/SqliteTest.csproj

@@ -77,6 +77,7 @@
     <Compile Include="Models\TestTree.cs" />
     <Compile Include="Models\Tree.cs" />
     <Compile Include="Models\ViewOrder.cs" />
+    <Compile Include="UnitTest\UnitNavInsertIssue.cs" />
     <Compile Include="UnitTest\UnitInsertNavN.cs" />
     <Compile Include="UnitTest\Main.cs" />
     <Compile Include="UnitTest\Models\Export.cs" />

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

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            UnitNavInsertIssue.Init();
             UnitInsertNavN.Init();
             UNavTest.Init();
             UnitTestReturnPkList.Init();

Src/Asp.Net/SqliteTest/UnitTest/UnitNavInsertIssue.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SqlSugar;
+namespace OrmTest
+{
+ 
+        public class UnitNavInsertIssue
+        {
+        
+            public static void Init()
+            {
+                ConnectionConfig cfg = new ConnectionConfig()
+                {
+                    DbType = DbType.MySql,
+                    ConnectionString = "随便填一个本地的吧"
+                };
+              var sqlSugarScope = NewUnitTest.Db;
+                sqlSugarScope.DbMaintenance.CreateDatabase();
+                sqlSugarScope.CodeFirst.InitTables(typeof(Mail), typeof(MailAttachment));
+                Mail mail = new Mail()
+                {
+                    TraceId = "abcd",
+                    Subject = "subject",
+                    Content = "content"
+                };
+                  sqlSugarScope
+                    .InsertNav(mail)
+                    .Include(p => p.Attachments)
+                    .ExecuteCommand();
+            }
+        }
+
+        [SugarTable(nameof(Mail))]
+        public class Mail
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+            [SugarColumn(IsNullable = false, Length = 20)]
+            public string TraceId { get; set; }
+            [SugarColumn(IsNullable = false, Length = 500)]
+            public string Subject { get; set; }
+            [SugarColumn(IsNullable = false, Length = 2000)]
+            public string Content { get; set; }
+            [Navigate(NavigateType.OneToMany, nameof(MailAttachment.MailTraceId), nameof(TraceId))]
+            public List<MailAttachment> Attachments { get; set; }
+        }
+
+        [SugarTable(nameof(MailAttachment))]
+        public class MailAttachment
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+            [SugarColumn(IsNullable = false, Length = 20)]
+            public string MailTraceId { get; set; }
+            [SugarColumn(IsNullable = false, Length = 100)]
+            public string FileName { get; set; }
+        }
+ 
+}