diff --git a/docs/en/Tutorials/Part-10.md b/docs/en/Tutorials/Part-10.md
index e71beccd6f..d06cea6b6e 100644
--- a/docs/en/Tutorials/Part-10.md
+++ b/docs/en/Tutorials/Part-10.md
@@ -614,19 +614,19 @@ using System.Threading.Tasks;
 using Acme.BookStore.Authors;
 using Shouldly;
 using Volo.Abp.Application.Dtos;
+using Volo.Abp.Modularity;
 using Volo.Abp.Validation;
 using Xunit;
 
 namespace Acme.BookStore.Books;
 
- {{if DB=="Mongo"}}
-[Collection(BookStoreTestConsts.CollectionDefinitionName)]{{end}}
-public class BookAppService_Tests : BookStoreApplicationTestBase
+public abstract class BookAppService_Tests<TStartupModule> : BookStoreApplicationTestBase<TStartupModule>
+    where TStartupModule : IAbpModule
 {
     private readonly IBookAppService _bookAppService;
     private readonly IAuthorAppService _authorAppService;
 
-    public BookAppService_Tests()
+    protected BookAppService_Tests()
     {
         _bookAppService = GetRequiredService<IBookAppService>();
         _authorAppService = GetRequiredService<IAuthorAppService>();
@@ -643,7 +643,7 @@ public class BookAppService_Tests : BookStoreApplicationTestBase
         //Assert
         result.TotalCount.ShouldBeGreaterThan(0);
         result.Items.ShouldContain(b => b.Name == "1984" &&
-                                    b.AuthorName == "George Orwell");
+                                        b.AuthorName == "George Orwell");
     }
 
     [Fact]
diff --git a/docs/en/Tutorials/Part-4.md b/docs/en/Tutorials/Part-4.md
index 072392e82b..c97bce6bd7 100644
--- a/docs/en/Tutorials/Part-4.md
+++ b/docs/en/Tutorials/Part-4.md
@@ -82,19 +82,18 @@ using System.Linq;
 using System.Threading.Tasks;
 using Shouldly;
 using Volo.Abp.Application.Dtos;
+using Volo.Abp.Modularity;
 using Volo.Abp.Validation;
 using Xunit;
 
 namespace Acme.BookStore.Books;
 
-{{if DB=="Mongo"}}
-[Collection(BookStoreTestConsts.CollectionDefinitionName)]
-{{end}}
-public class BookAppService_Tests : BookStoreApplicationTestBase
+public abstract class BookAppService_Tests<TStartupModule> : BookStoreApplicationTestBase<TStartupModule>
+    where TStartupModule : IAbpModule
 {
     private readonly IBookAppService _bookAppService;
 
-    public BookAppService_Tests()
+    protected BookAppService_Tests()
     {
         _bookAppService = GetRequiredService<IBookAppService>();
     }
@@ -114,6 +113,41 @@ public class BookAppService_Tests : BookStoreApplicationTestBase
 }
 ````
 
+{{if DB == "EF"}}
+Add a new implementation class of `BookAppService_Tests` class, named `EfCoreBookAppService_Tests` in the `EntityFrameworkCore\Applications\Books` namespace (folder) of the `Acme.BookStore.EntityFrameworkCore.Tests` project:
+
+````csharp
+using Acme.BookStore.Books;
+using Xunit;
+
+namespace Acme.BookStore.EntityFrameworkCore.Applications.Books;
+
+[Collection(BookStoreTestConsts.CollectionDefinitionName)]
+public class EfCoreBookAppService_Tests : BookAppService_Tests<BookStoreEntityFrameworkCoreTestModule>
+{
+
+}
+````
+{{end}}
+
+{{if DB == "Mongo"}}
+Add a new implementation class of `BookAppService_Tests` class, named `MongoDBBookAppService_Tests` in the `MongoDb\Applications\Books` namespace (folder) of the `Acme.BookStore.MongoDB.Tests` project:
+
+````csharp
+using Acme.BookStore.MongoDB;
+using Acme.BookStore.Books;
+using Xunit;
+
+namespace Acme.BookStore.MongoDb.Applications.Books;
+
+[Collection(BookStoreTestConsts.CollectionDefinitionName)]
+public class MongoDBBookAppService_Tests : BookAppService_Tests<BookStoreMongoDbTestModule>
+{
+
+}
+````
+{{end}}
+
 * `Should_Get_List_Of_Books` test simply uses `BookAppService.GetListAsync` method to get and check the list of books.
 * We can safely check the book "1984" by its name, because we know that this books is available in the database since we've added it in the seed data.
 
@@ -174,19 +208,18 @@ using System.Linq;
 using System.Threading.Tasks;
 using Shouldly;
 using Volo.Abp.Application.Dtos;
+using Volo.Abp.Modularity;
 using Volo.Abp.Validation;
 using Xunit;
 
 namespace Acme.BookStore.Books;
 
-{{if DB=="Mongo"}}
-[Collection(BookStoreTestConsts.CollectionDefinitionName)]
-{{end}}
-public class BookAppService_Tests : BookStoreApplicationTestBase
+public abstract class BookAppService_Tests<TStartupModule> : BookStoreApplicationTestBase<TStartupModule>
+    where TStartupModule : IAbpModule
 {
     private readonly IBookAppService _bookAppService;
 
-    public BookAppService_Tests()
+    protected BookAppService_Tests()
     {
         _bookAppService = GetRequiredService<IBookAppService>();
     }
@@ -203,7 +236,7 @@ public class BookAppService_Tests : BookStoreApplicationTestBase
         result.TotalCount.ShouldBeGreaterThan(0);
         result.Items.ShouldContain(b => b.Name == "1984");
     }
-    
+
     [Fact]
     public async Task Should_Create_A_Valid_Book()
     {
diff --git a/docs/en/Tutorials/Part-8.md b/docs/en/Tutorials/Part-8.md
index 9d638e909e..7ea3c6cbae 100644
--- a/docs/en/Tutorials/Part-8.md
+++ b/docs/en/Tutorials/Part-8.md
@@ -481,18 +481,17 @@ Finally, we can write some tests for the `IAuthorAppService`. Add a new class, n
 using System;
 using System.Threading.Tasks;
 using Shouldly;
+using Volo.Abp.Modularity;
 using Xunit;
 
 namespace Acme.BookStore.Authors;
 
- {{if DB=="Mongo"}}
-[Collection(BookStoreTestConsts.CollectionDefinitionName)]
-{{end}}
-public class AuthorAppService_Tests : BookStoreApplicationTestBase
+public abstract class AuthorAppService_Tests<TStartupModule> : BookStoreApplicationTestBase<TStartupModule>
+    where TStartupModule : IAbpModule
 {
     private readonly IAuthorAppService _authorAppService;
 
-    public AuthorAppService_Tests()
+    protected AuthorAppService_Tests()
     {
         _authorAppService = GetRequiredService<IAuthorAppService>();
     }
@@ -554,6 +553,41 @@ public class AuthorAppService_Tests : BookStoreApplicationTestBase
 }
 ````
 
+{{if DB == "EF"}}
+Add a new implementation class of `AuthorAppService_Tests` class, named `EfCoreAuthorAppService_Tests` in the `EntityFrameworkCore\Applications\Authors` namespace (folder) of the `Acme.BookStore.EntityFrameworkCore.Tests` project:
+
+````csharp
+using Acme.BookStore.Authors;
+using Xunit;
+
+namespace Acme.BookStore.EntityFrameworkCore.Applications.Authors;
+
+[Collection(BookStoreTestConsts.CollectionDefinitionName)]
+public class EfCoreAuthorAppService_Tests : AuthorAppService_Tests<BookStoreEntityFrameworkCoreTestModule>
+{
+
+}
+````
+{{end}}
+
+{{if DB == "Mongo"}}
+Add a new implementation class of `AuthorAppService_Tests` class, named `MongoDBAuthorAppService_Tests` in the `MongoDb\Applications\Authors` namespace (folder) of the `Acme.BookStore.MongoDB.Tests` project:
+
+````csharp
+using Acme.BookStore.MongoDB;
+using Acme.BookStore.Authors;
+using Xunit;
+
+namespace Acme.BookStore.MongoDb.Applications.Authors;
+
+[Collection(BookStoreTestConsts.CollectionDefinitionName)]
+public class MongoDBAuthorAppService_Tests : AuthorAppService_Tests<BookStoreMongoDbTestModule>
+{
+
+}
+````
+{{end}}
+
 Created some tests for the application service methods, which should be clear to understand.
 
 ## The Next Part