Update mongodb

Src/Asp.NetCore2/MongoDbTest/UnitTest/Cases.cs

@@ -11,7 +11,8 @@ namespace MongoDbTest
     {
         public static void Init() 
         {
-            SingleQuery.Init();
+            QuerySingle.Init();
+            QueryWhere.Init();
         } 
         public static void ThrowUnitError()
         {

Src/Asp.NetCore2/MongoDbTest/UnitTest/QuerySingle.cs

@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 
 namespace MongoDbTest 
 {
-    public class SingleQuery
+    public class QuerySingle
     {
         public static void Init() 
         {

Src/Asp.NetCore2/MongoDbTest/UnitTest/QueryWhere.cs

@@ -0,0 +1,35 @@
+using SqlSugar.MongoDb;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MongoDbTest 
+{
+    public class QueryWhere
+    {
+        public static void Init() 
+        {
+            var db = DBHelper.DbHelper.GetNewDb(); 
+            db.CodeFirst.InitTables<Student>();
+            db.DbMaintenance.TruncateTable<Student>();
+            db.Insertable(new Student() { Name = "jack",Bool=true, SchoolId =2 }).ExecuteCommand();
+            db.Insertable(new Student() { Name = "tom_null", Bool = false,BoolNull=true, SchoolId =3 ,SchoolIdNull=4}).ExecuteCommand();
+            var list=db.Queryable<Student>().ToList();
+            if (list.First() is { } first && (first.BoolNull != null || first.SchoolIdNull != null)) Cases.ThrowUnitError();
+            if (list.Last() is { } last && (last.BoolNull != true || last.SchoolIdNull != 4)) Cases.ThrowUnitError();
+        }
+        [SqlSugar.SugarTable("UnitStudent1ssss23s131")]
+        public class Student : MongoDbBase
+        {
+            public string Name { get; set; }
+
+            public bool Bool { get; set; }
+            public bool? BoolNull { get; set; }
+
+            public int SchoolId { get; set; }
+            public int? SchoolIdNull { get; set; }
+        }
+    }
+}