Add bulk copy unit

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

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Bulk();
             Filter();
             Insert();
             Enum();

Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/UnitTest/UBulkCopy.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest
+{
+    public partial class NewUnitTest
+    {
+        public static void Bulk()
+        {
+            Db.CodeFirst.InitTables<UnitIdentity1>();
+            Db.DbMaintenance.TruncateTable<UnitIdentity1>();
+           var data = new UnitIdentity1()
+            {
+                Name = "jack"
+            };
+            Db.Fastest<UnitIdentity1>().BulkCopy(new List<UnitIdentity1>() {
+              data
+            });
+            var list=Db.Queryable<UnitIdentity1>().ToList();
+            if (list.Count != 1 || data.Name != list.First().Name) 
+            {
+                throw new Exception("unit Bulk");
+            }
+            data.Name = "2";
+            Db.Fastest<UnitIdentity1>().BulkCopy(new List<UnitIdentity1>() {
+              data,
+              data
+            });
+            list = Db.Queryable<UnitIdentity1>().ToList();
+            if (list.Count != 3 || !list.Any(it=>it.Name=="2"))
+            {
+                throw new Exception("unit Bulk");
+            }
+            Db.Fastest<UnitIdentity1>().BulkUpdate(new List<UnitIdentity1>() {
+               new UnitIdentity1(){
+                Id=1,
+                 Name="222"
+               },
+                 new UnitIdentity1(){
+                Id=2,
+                 Name="111"
+               }
+            });
+            list = Db.Queryable<UnitIdentity1>().ToList();
+            if (list.First(it=>it.Id==1).Name!="222")
+            {
+                throw new Exception("unit Bulk");
+            }
+            if (list.First(it => it.Id == 2).Name != "111")
+            {
+                throw new Exception("unit Bulk");
+            }
+            if (list.First(it => it.Id == 3).Name != "2")
+            {
+                throw new Exception("unit Bulk");
+            }
+        }
+    }
+    public class UnitIdentity1 
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey =true,IsIdentity =true)]
+        public int Id { get; set; }
+        public string Name { get; set; }
+    }
+}