Add unit test

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

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OrmTest;
+using SqlSugar;
+namespace OrmTest 
+{
+    internal class AnimalTest
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            db.CodeFirst.InitTables<Animal,Dog, Cat>();
+            db.DbMaintenance.TruncateTable<Animal>();
+            var dog = new Dog { Name = "Buddy", Breed = "Golden Retriever" };
+            db.Insertable(dog).ExecuteCommand();
+            var cat = new Cat { Name = "Whiskers", Color = "Gray" };
+            db.Insertable(cat).ExecuteCommand();
+
+            var catList=db.Queryable<Cat>().ToList();
+            var dogList = db.Queryable<Dog>().ToList();
+            var dt=db.Queryable<Animal>().Select("*").ToDataTable();
+            if (catList.Count() != 1 || dogList.Count() != 1 || dt.Rows.Count != 2) 
+            {
+                throw new Exception("unit error");
+            }
+            if (catList.First().Color!= "Gray"|| dogList.First().Breed != "Golden Retriever")
+            {
+                throw new Exception("unit error");
+            }
+        }
+    }
+    [SugarTable("Animal",IsDisabledDelete =true)]
+    public class Animal
+    {
+        [SugarColumn(IsIdentity =true,IsPrimaryKey =true)]
+        public int AnimalId { get; set; }
+        public string Name { get; set; }
+    }
+    [SugarTable("Animal",Discrimator ="Type:1", IsDisabledDelete = true)]
+    public class Dog : Animal
+    {
+        [SugarColumn(IsNullable =true)]
+        public int DogId { get; set; }
+        [SugarColumn(IsNullable = true)]
+        public string Breed { get; set; }
+    }
+    [SugarTable("Animal", Discrimator = "Type:2", IsDisabledDelete = true)]
+    public class Cat : Animal
+    {
+        [SugarColumn(IsNullable = true)]
+        public int CatId { get; set; }
+        [SugarColumn(IsNullable = true)]
+        public string Color { get; set; }
+    }
+}