diff --git a/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDb_Repository_Tests.cs b/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDb_Repository_Tests.cs
index aab704f129..b62ac78bbc 100644
--- a/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDb_Repository_Tests.cs
+++ b/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDb_Repository_Tests.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using System.Threading.Tasks;
 using Shouldly;
 using Volo.Abp.Domain.Repositories;
@@ -20,7 +21,64 @@ namespace Volo.Abp.MongoDB
         [Fact]
         public async Task GetAsync()
         {
-            (await _personRepository.GetAsync(TestDataBuilder.UserDouglasId)).ShouldNotBeNull();
+            var person = await _personRepository.GetAsync(TestDataBuilder.UserDouglasId);
+            person.Name.ShouldBe("Douglas");
+            person.Phones.Count.ShouldBe(2);
+        }
+
+        [Fact]
+        public async Task FindAsync_Should_Return_Null_For_Not_Found_Entity()
+        {
+            var person = await _personRepository.FindAsync(Guid.NewGuid());
+            person.ShouldBeNull();
+        }
+
+        [Fact]
+        public void Linq_Queries()
+        {
+            _personRepository.FirstOrDefault(p => p.Name == "Douglas").ShouldNotBeNull();
+
+            _personRepository.Count().ShouldBeGreaterThan(0);
+        }
+
+        [Fact]
+        public async Task DeleteAsync()
+        {
+            await _personRepository.DeleteAsync(TestDataBuilder.UserDouglasId);
+
+            (await _personRepository.FindAsync(TestDataBuilder.UserDouglasId)).ShouldBeNull();
+        }
+
+        [Fact]
+        public async Task UpdateAsync()
+        {
+            var person = await _personRepository.GetAsync(TestDataBuilder.UserDouglasId);
+
+            person.ChangeName("Douglas-Updated");
+            person.Phones.Add(new Phone(person.Id, "6667778899", PhoneType.Office));
+
+            await _personRepository.UpdateAsync(person);
+
+            person = await _personRepository.FindAsync(TestDataBuilder.UserDouglasId);
+            person.ShouldNotBeNull();
+            person.Name.ShouldBe("Douglas-Updated");
+            person.Phones.Count.ShouldBe(3);
+            person.Phones.Any(p => p.PersonId == person.Id && p.Number == "6667778899" && p.Type == PhoneType.Office).ShouldBeTrue();
+        }
+
+        [Fact]
+        public async Task InsertAsync()
+        {
+            var person = new Person(Guid.NewGuid(), "New Person", 35);
+            person.Phones.Add(new Phone(person.Id, "1234567890"));
+
+            await _personRepository.InsertAsync(person);
+
+            person = await _personRepository.FindAsync(person.Id);
+            person.ShouldNotBeNull();
+            person.Name.ShouldBe("New Person");
+            person.Phones.Count.ShouldBe(1);
+            person.Phones.Any(p => p.PersonId == person.Id && p.Number == "1234567890").ShouldBeTrue();
         }
     }
 }
diff --git a/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Domain/Person.cs b/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Domain/Person.cs
index 9f2e02d3b4..69b4abb35a 100644
--- a/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Domain/Person.cs
+++ b/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Domain/Person.cs
@@ -15,7 +15,7 @@ namespace Volo.Abp.TestApp.Domain
 
         public virtual Collection<Phone> Phones { get; set; }
 
-        public bool IsDeleted { get; set; }
+        public virtual bool IsDeleted { get; set; }
 
         private Person()
         {
@@ -32,7 +32,7 @@ namespace Volo.Abp.TestApp.Domain
             Phones = new Collection<Phone>();
         }
 
-        public void ChangeName(string name)
+        public virtual void ChangeName(string name)
         {
             Check.NotNullOrWhiteSpace(name, nameof(name));