diff --git a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UnitFilter.cs b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UnitFilter.cs
index cd85396e8..a9cc4120b 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UnitFilter.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UnitFilter.cs
@@ -55,6 +55,10 @@ namespace OrmTest
                        DeviceBrandId = a.DeviceBrandId,
                        BrandName = a.DeviceBrand.Name,
                    }).ToList();
+            db.CodeFirst.InitTables<DeviceEntity2, DeviceBrandEntity2>();
+            var list= db.Queryable<DeviceEntity2, DeviceBrandEntity2>((x, y) => 
+                              new JoinQueryInfos(JoinType.Left,x.Id==y.Id))
+                .ToList();
 
         }
         /// <summary>
@@ -92,6 +96,43 @@ namespace OrmTest
             public bool IsDelete { get; set; }
         }
 
+
+        /// <summary>
+        /// 仪器
+        /// </summary>
+        [SugarTable("Device2")]
+        public class DeviceEntity2 : IDeletedFilter
+        {
+            /// <summary>
+            /// id
+            /// </summary>
+            [SugarColumn(IsPrimaryKey = true)]
+            public string Id { get; set; }
+
+            /// <summary>
+            /// 名称
+            /// </summary>
+            public string Name { get; set; }
+
+            /// <summary>
+            /// 仪器品牌id
+            /// </summary>
+            [SugarColumn(IsNullable = true)]
+            public string DeviceBrandId { get; set; }
+
+            /// <summary>
+            /// 设备品牌
+            /// </summary>
+            [Navigate(NavigateType.OneToOne, nameof(DeviceBrandId))]
+            public DeviceBrandEntity DeviceBrand { get; set; }
+
+            /// <summary>
+            /// 是否删除
+            /// </summary>
+            [SugarColumn(ColumnName = "Is_Delete")]
+            public bool IsDelete { get; set; }
+        }
+
         internal interface IDeletedFilter
         {
             /// <summary>
@@ -117,5 +158,28 @@ namespace OrmTest
             public string Name { get; set; }
         }
 
+        /// <summary>
+        /// 仪器品牌
+        /// </summary>
+        [SugarTable("DeviceBrand2")]
+        public class DeviceBrandEntity2:IDeletedFilter
+        {
+            /// <summary>
+            /// id
+            /// </summary>
+            [SugarColumn(IsPrimaryKey = true)]
+            public string Id { get; set; }
+            /// <summary>
+            /// 名称
+            /// </summary>
+            public string Name { get; set; }
+            /// <summary>
+            /// 是否删除
+            /// </summary>
+            [SugarColumn(ColumnName = "Is_Delete")]
+            public bool IsDelete { get; set; }
+        }
+
+
     }
 }