diff --git a/framework/test/Volo.Abp.Auditing.Tests/Volo/Abp/Auditing/AuditingInterceptor_Tests.cs b/framework/test/Volo.Abp.Auditing.Tests/Volo/Abp/Auditing/AuditingInterceptor_Tests.cs
index 23eba6c53b..a6fd566df7 100644
--- a/framework/test/Volo.Abp.Auditing.Tests/Volo/Abp/Auditing/AuditingInterceptor_Tests.cs
+++ b/framework/test/Volo.Abp.Auditing.Tests/Volo/Abp/Auditing/AuditingInterceptor_Tests.cs
@@ -5,6 +5,7 @@ using NSubstitute;
 using Volo.Abp.Autofac;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Auditing
diff --git a/framework/test/Volo.Abp.Authorization.Tests/Volo/Abp/Authorization/AuthorizationTestBase.cs b/framework/test/Volo.Abp.Authorization.Tests/Volo/Abp/Authorization/AuthorizationTestBase.cs
index e30565bcf2..8ab051d97e 100644
--- a/framework/test/Volo.Abp.Authorization.Tests/Volo/Abp/Authorization/AuthorizationTestBase.cs
+++ b/framework/test/Volo.Abp.Authorization.Tests/Volo/Abp/Authorization/AuthorizationTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.Authorization
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.Authorization
 {
     public class AuthorizationTestBase : AbpIntegratedTest<AbpAuthorizationTestModule>
     {
diff --git a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Basic_Tests.cs b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Basic_Tests.cs
index 436c0402d8..3ac2246dcc 100644
--- a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Basic_Tests.cs
+++ b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Basic_Tests.cs
@@ -3,6 +3,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.AutoMapper.SampleClasses;
 using Volo.Abp.ObjectMapping;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.AutoMapper
diff --git a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Specific_ObjectMapper_Tests.cs b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Specific_ObjectMapper_Tests.cs
index cfc846f3b7..1c3b0bf1be 100644
--- a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Specific_ObjectMapper_Tests.cs
+++ b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AbpAutoMapperModule_Specific_ObjectMapper_Tests.cs
@@ -3,6 +3,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.AutoMapper.SampleClasses;
 using Volo.Abp.ObjectMapping;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.AutoMapper
diff --git a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AutoMapper_ConfigurationValidation_Tests.cs b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AutoMapper_ConfigurationValidation_Tests.cs
index 7504bd7209..50daf2cc0b 100644
--- a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AutoMapper_ConfigurationValidation_Tests.cs
+++ b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/AutoMapper_ConfigurationValidation_Tests.cs
@@ -2,6 +2,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 using IObjectMapper = Volo.Abp.ObjectMapping.IObjectMapper;
 
diff --git a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/ObjectMapperExtensions_Tests.cs b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/ObjectMapperExtensions_Tests.cs
index 3958041817..737731fd22 100644
--- a/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/ObjectMapperExtensions_Tests.cs
+++ b/framework/test/Volo.Abp.AutoMapper.Tests/Volo/Abp/AutoMapper/ObjectMapperExtensions_Tests.cs
@@ -3,6 +3,7 @@ using Shouldly;
 using System;
 using Volo.Abp.AutoMapper.SampleClasses;
 using Volo.Abp.ObjectMapping;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.AutoMapper
diff --git a/framework/test/Volo.Abp.BackgroundJobs.Tests/Volo/Abp/BackgroundJobs/BackgroundJobsTestBase.cs b/framework/test/Volo.Abp.BackgroundJobs.Tests/Volo/Abp/BackgroundJobs/BackgroundJobsTestBase.cs
index 6351320242..c2aedce98a 100644
--- a/framework/test/Volo.Abp.BackgroundJobs.Tests/Volo/Abp/BackgroundJobs/BackgroundJobsTestBase.cs
+++ b/framework/test/Volo.Abp.BackgroundJobs.Tests/Volo/Abp/BackgroundJobs/BackgroundJobsTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.BackgroundJobs
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.BackgroundJobs
 {
     public abstract class BackgroundJobsTestBase : AbpIntegratedTest<AbpBackgroundJobsTestModule>
     {
diff --git a/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_ConfigureOptions_Test.cs b/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_ConfigureOptions_Test.cs
index adb0b01bfc..0a0509df6c 100644
--- a/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_ConfigureOptions_Test.cs
+++ b/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_ConfigureOptions_Test.cs
@@ -3,6 +3,7 @@ using Shouldly;
 using System;
 using System.Reflection;
 using System.Threading.Tasks;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Caching
diff --git a/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_Tests.cs b/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_Tests.cs
index 927448463a..2855535a33 100644
--- a/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_Tests.cs
+++ b/framework/test/Volo.Abp.Caching.Tests/Volo/Abp/Caching/DistributedCache_Tests.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Threading.Tasks;
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Caching
diff --git a/framework/test/Volo.Abp.Cli.Core.Tests/Volo/Abp/Cli/AbpCliTestBase.cs b/framework/test/Volo.Abp.Cli.Core.Tests/Volo/Abp/Cli/AbpCliTestBase.cs
index 6f6393b7ae..dd93bde1ca 100644
--- a/framework/test/Volo.Abp.Cli.Core.Tests/Volo/Abp/Cli/AbpCliTestBase.cs
+++ b/framework/test/Volo.Abp.Cli.Core.Tests/Volo/Abp/Cli/AbpCliTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.Cli
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.Cli
 {
     public class AbpCliTestBase : AbpIntegratedTest<AbpCliTestModule>
     {
diff --git a/framework/test/Volo.Abp.Core.Tests/Microsoft/Extensions/DependencyInjection/DependencyInjection_Tests.cs b/framework/test/Volo.Abp.Core.Tests/Microsoft/Extensions/DependencyInjection/DependencyInjection_Tests.cs
index 64057659b6..680cb607f7 100644
--- a/framework/test/Volo.Abp.Core.Tests/Microsoft/Extensions/DependencyInjection/DependencyInjection_Tests.cs
+++ b/framework/test/Volo.Abp.Core.Tests/Microsoft/Extensions/DependencyInjection/DependencyInjection_Tests.cs
@@ -4,6 +4,7 @@ using Shouldly;
 using Volo.Abp;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Microsoft.Extensions.DependencyInjection
diff --git a/framework/test/Volo.Abp.Core.Tests/Volo/Abp/DynamicProxy/AbpInterceptionTestBase.cs b/framework/test/Volo.Abp.Core.Tests/Volo/Abp/DynamicProxy/AbpInterceptionTestBase.cs
index c6e9f03927..aa8148ebd0 100644
--- a/framework/test/Volo.Abp.Core.Tests/Volo/Abp/DynamicProxy/AbpInterceptionTestBase.cs
+++ b/framework/test/Volo.Abp.Core.Tests/Volo/Abp/DynamicProxy/AbpInterceptionTestBase.cs
@@ -2,6 +2,7 @@ using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.DynamicProxy
diff --git a/framework/test/Volo.Abp.Dapper.Tests/Volo/Abp/Dapper/DapperTestBase.cs b/framework/test/Volo.Abp.Dapper.Tests/Volo/Abp/Dapper/DapperTestBase.cs
index 3fa387cec2..2221bfd3e8 100644
--- a/framework/test/Volo.Abp.Dapper.Tests/Volo/Abp/Dapper/DapperTestBase.cs
+++ b/framework/test/Volo.Abp.Dapper.Tests/Volo/Abp/Dapper/DapperTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.Dapper
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.Dapper
 {
     public abstract class DapperTestBase : AbpIntegratedTest<AbpDapperTestModule>
     {
diff --git a/framework/test/Volo.Abp.Data.Tests/Volo/Abp/Data/ConnectionStringResolver_Tests.cs b/framework/test/Volo.Abp.Data.Tests/Volo/Abp/Data/ConnectionStringResolver_Tests.cs
index 4f4dabf36a..d13c89671e 100644
--- a/framework/test/Volo.Abp.Data.Tests/Volo/Abp/Data/ConnectionStringResolver_Tests.cs
+++ b/framework/test/Volo.Abp.Data.Tests/Volo/Abp/Data/ConnectionStringResolver_Tests.cs
@@ -1,6 +1,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Data
diff --git a/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateRender_Tests.cs b/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateRender_Tests.cs
index 403aaad0bd..24d7298f6c 100644
--- a/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateRender_Tests.cs
+++ b/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateRender_Tests.cs
@@ -2,6 +2,7 @@
 using System.Threading.Tasks;
 using Shouldly;
 using Volo.Abp.Emailing.Templates;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Emailing
diff --git a/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateStore_Tests.cs b/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateStore_Tests.cs
index 1011232e57..1e4ea8c090 100644
--- a/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateStore_Tests.cs
+++ b/framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateStore_Tests.cs
@@ -2,6 +2,7 @@
 using System.Threading.Tasks;
 using Shouldly;
 using Volo.Abp.Emailing.Templates;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Emailing
diff --git a/framework/test/Volo.Abp.EntityFrameworkCore.Tests/Volo/Abp/EntityFrameworkCore/EntityFrameworkCoreTestBase.cs b/framework/test/Volo.Abp.EntityFrameworkCore.Tests/Volo/Abp/EntityFrameworkCore/EntityFrameworkCoreTestBase.cs
index 87bd7cfc28..f40cfcdddf 100644
--- a/framework/test/Volo.Abp.EntityFrameworkCore.Tests/Volo/Abp/EntityFrameworkCore/EntityFrameworkCoreTestBase.cs
+++ b/framework/test/Volo.Abp.EntityFrameworkCore.Tests/Volo/Abp/EntityFrameworkCore/EntityFrameworkCoreTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.EntityFrameworkCore
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.EntityFrameworkCore
 {
     public abstract class EntityFrameworkCoreTestBase : AbpIntegratedTest<AbpEntityFrameworkCoreTestModule>
     {
diff --git a/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Distributed/LocalDistributedEventBusTestBase.cs b/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Distributed/LocalDistributedEventBusTestBase.cs
index d4e8df71aa..59e641d04f 100644
--- a/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Distributed/LocalDistributedEventBusTestBase.cs
+++ b/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Distributed/LocalDistributedEventBusTestBase.cs
@@ -1,3 +1,5 @@
+using Volo.Abp.Testing;
+
 namespace Volo.Abp.EventBus.Distributed
 {
     public abstract class LocalDistributedEventBusTestBase : AbpIntegratedTest<EventBusTestModule>
diff --git a/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Local/EventBusTestBase.cs b/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Local/EventBusTestBase.cs
index b3a55c340b..f3040c1f65 100644
--- a/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Local/EventBusTestBase.cs
+++ b/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Local/EventBusTestBase.cs
@@ -1,3 +1,5 @@
+using Volo.Abp.Testing;
+
 namespace Volo.Abp.EventBus.Local
 {
     public abstract class EventBusTestBase : AbpIntegratedTest<EventBusTestModule>
diff --git a/framework/test/Volo.Abp.Features.Tests/Volo/Abp/Features/FeatureTestBase.cs b/framework/test/Volo.Abp.Features.Tests/Volo/Abp/Features/FeatureTestBase.cs
index b12aa9f526..9bde61e1c4 100644
--- a/framework/test/Volo.Abp.Features.Tests/Volo/Abp/Features/FeatureTestBase.cs
+++ b/framework/test/Volo.Abp.Features.Tests/Volo/Abp/Features/FeatureTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.Features
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.Features
 {
     public class FeatureTestBase : AbpIntegratedTest<AbpFeaturesTestModule>
     {
diff --git a/framework/test/Volo.Abp.FluentValidation.Tests/Volo/Abp/FluentValidation/ApplicationService_FluentValidation_Tests.cs b/framework/test/Volo.Abp.FluentValidation.Tests/Volo/Abp/FluentValidation/ApplicationService_FluentValidation_Tests.cs
index 82541a5aa4..5bf11b6d5e 100644
--- a/framework/test/Volo.Abp.FluentValidation.Tests/Volo/Abp/FluentValidation/ApplicationService_FluentValidation_Tests.cs
+++ b/framework/test/Volo.Abp.FluentValidation.Tests/Volo/Abp/FluentValidation/ApplicationService_FluentValidation_Tests.cs
@@ -6,6 +6,7 @@ using Shouldly;
 using Volo.Abp.Autofac;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Volo.Abp.Validation;
 using Xunit;
 
diff --git a/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/Authenticate_Tests.cs b/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/Authenticate_Tests.cs
index c59dc0d9e1..bf11262a99 100644
--- a/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/Authenticate_Tests.cs
+++ b/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/Authenticate_Tests.cs
@@ -1,6 +1,7 @@
 using System;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Ldap
diff --git a/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/LdapManager_Tests.cs b/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/LdapManager_Tests.cs
index 01906c8f18..3e83d26543 100644
--- a/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/LdapManager_Tests.cs
+++ b/framework/test/Volo.Abp.Ldap.Tests/Volo/Abp/Ldap/LdapManager_Tests.cs
@@ -1,6 +1,7 @@
 using System;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Ldap
diff --git a/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/AbpLocalization_Tests.cs b/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/AbpLocalization_Tests.cs
index 46f34e054d..a320f87732 100644
--- a/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/AbpLocalization_Tests.cs
+++ b/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/AbpLocalization_Tests.cs
@@ -7,6 +7,7 @@ using Volo.Abp.Localization.TestResources.Base.CountryNames;
 using Volo.Abp.Localization.TestResources.Base.Validation;
 using Volo.Abp.Localization.TestResources.Source;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Volo.Abp.VirtualFileSystem;
 using Xunit;
 
diff --git a/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/TemplateLocalizer_Tests.cs b/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/TemplateLocalizer_Tests.cs
index 3ba7a2937b..e3f765f149 100644
--- a/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/TemplateLocalizer_Tests.cs
+++ b/framework/test/Volo.Abp.Localization.Tests/Volo/Abp/Localization/TemplateLocalizer_Tests.cs
@@ -3,6 +3,7 @@ using Microsoft.Extensions.Localization;
 using Shouldly;
 using Volo.Abp.Localization.TestResources.Source;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Volo.Abp.VirtualFileSystem;
 using Xunit;
 
diff --git a/framework/test/Volo.Abp.MailKit.Tests/Volo/Abp/MailKit/MailKitSmtpEmailSender_Tests.cs b/framework/test/Volo.Abp.MailKit.Tests/Volo/Abp/MailKit/MailKitSmtpEmailSender_Tests.cs
index de9acb3a0e..39fd4ea78f 100644
--- a/framework/test/Volo.Abp.MailKit.Tests/Volo/Abp/MailKit/MailKitSmtpEmailSender_Tests.cs
+++ b/framework/test/Volo.Abp.MailKit.Tests/Volo/Abp/MailKit/MailKitSmtpEmailSender_Tests.cs
@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using NSubstitute;
 using Volo.Abp.BackgroundJobs;
 using Volo.Abp.Emailing.Smtp;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.MailKit
diff --git a/framework/test/Volo.Abp.MemoryDb.Tests/Volo/Abp/MemoryDb/MemoryDbTestBase.cs b/framework/test/Volo.Abp.MemoryDb.Tests/Volo/Abp/MemoryDb/MemoryDbTestBase.cs
index 8d818bb32c..c539f66ca1 100644
--- a/framework/test/Volo.Abp.MemoryDb.Tests/Volo/Abp/MemoryDb/MemoryDbTestBase.cs
+++ b/framework/test/Volo.Abp.MemoryDb.Tests/Volo/Abp/MemoryDb/MemoryDbTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.MemoryDb
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.MemoryDb
 {
     public abstract class MemoryDbTestBase : AbpIntegratedTest<AbpMemoryDbTestModule>
     {
diff --git a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/CssMinifier_Tests.cs b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/CssMinifier_Tests.cs
index c71be3450b..59bc8cd425 100644
--- a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/CssMinifier_Tests.cs
+++ b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/CssMinifier_Tests.cs
@@ -1,5 +1,6 @@
 using Shouldly;
 using Volo.Abp.Minify.Styles;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Minify.NUglify
diff --git a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/HtmlMinifier_Tests.cs b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/HtmlMinifier_Tests.cs
index 88da207d0c..bba7707be7 100644
--- a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/HtmlMinifier_Tests.cs
+++ b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/HtmlMinifier_Tests.cs
@@ -1,5 +1,6 @@
 using Shouldly;
 using Volo.Abp.Minify.Html;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Minify.NUglify
diff --git a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/JavascriptMinifier_Tests.cs b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/JavascriptMinifier_Tests.cs
index 7ebcd65fc3..6526d0b483 100644
--- a/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/JavascriptMinifier_Tests.cs
+++ b/framework/test/Volo.Abp.Minify.Tests/Volo/Abp/Minify/NUglify/JavascriptMinifier_Tests.cs
@@ -1,5 +1,6 @@
 using Shouldly;
 using Volo.Abp.Minify.Scripts;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Minify.NUglify
diff --git a/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDbTestBase.cs b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDbTestBase.cs
index 22cae9b7d6..53e101647a 100644
--- a/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDbTestBase.cs
+++ b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/MongoDbTestBase.cs
@@ -1,3 +1,5 @@
+using Volo.Abp.Testing;
+
 namespace Volo.Abp.MongoDB
 {
     public abstract class MongoDbTestBase : AbpIntegratedTest<AbpMongoDbTestModule>
diff --git a/framework/test/Volo.Abp.MultiTenancy.Tests/Volo/Abp/MultiTenancy/MultiTenancyTestBase.cs b/framework/test/Volo.Abp.MultiTenancy.Tests/Volo/Abp/MultiTenancy/MultiTenancyTestBase.cs
index 7480ae01c2..a0b2d663bc 100644
--- a/framework/test/Volo.Abp.MultiTenancy.Tests/Volo/Abp/MultiTenancy/MultiTenancyTestBase.cs
+++ b/framework/test/Volo.Abp.MultiTenancy.Tests/Volo/Abp/MultiTenancy/MultiTenancyTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.MultiTenancy
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.MultiTenancy
 {
     public class MultiTenancyTestBase : AbpIntegratedTest<MultiTenancyTestModule>
     {
diff --git a/framework/test/Volo.Abp.ObjectMapping.Tests/Volo/Abp/ObjectMapping/AbpObjectMappingTestBase.cs b/framework/test/Volo.Abp.ObjectMapping.Tests/Volo/Abp/ObjectMapping/AbpObjectMappingTestBase.cs
index 9ba65b5a10..334bb99669 100644
--- a/framework/test/Volo.Abp.ObjectMapping.Tests/Volo/Abp/ObjectMapping/AbpObjectMappingTestBase.cs
+++ b/framework/test/Volo.Abp.ObjectMapping.Tests/Volo/Abp/ObjectMapping/AbpObjectMappingTestBase.cs
@@ -1,4 +1,6 @@
-namespace Volo.Abp.ObjectMapping
+using Volo.Abp.Testing;
+
+namespace Volo.Abp.ObjectMapping
 {
     public abstract class AbpObjectMappingTestBase : AbpIntegratedTest<AbpObjectMappingTestModule>
     {
diff --git a/framework/test/Volo.Abp.Security.Tests/Volo/Abp/Security/Encryption/StringEncryptionService_Tests.cs b/framework/test/Volo.Abp.Security.Tests/Volo/Abp/Security/Encryption/StringEncryptionService_Tests.cs
index 455e0863bb..53127bbe76 100644
--- a/framework/test/Volo.Abp.Security.Tests/Volo/Abp/Security/Encryption/StringEncryptionService_Tests.cs
+++ b/framework/test/Volo.Abp.Security.Tests/Volo/Abp/Security/Encryption/StringEncryptionService_Tests.cs
@@ -1,4 +1,5 @@
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Security.Encryption
diff --git a/framework/test/Volo.Abp.Serialization.Tests/Volo/Abp/Serialization/ObjectSerializer_Tests.cs b/framework/test/Volo.Abp.Serialization.Tests/Volo/Abp/Serialization/ObjectSerializer_Tests.cs
index e2519a89d3..59dc8ce6c8 100644
--- a/framework/test/Volo.Abp.Serialization.Tests/Volo/Abp/Serialization/ObjectSerializer_Tests.cs
+++ b/framework/test/Volo.Abp.Serialization.Tests/Volo/Abp/Serialization/ObjectSerializer_Tests.cs
@@ -1,5 +1,6 @@
 using Shouldly;
 using Volo.Abp.Serialization.Objects;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Serialization
diff --git a/framework/test/Volo.Abp.Settings.Tests/Volo/Abp/Settings/SettingProvider_Tests.cs b/framework/test/Volo.Abp.Settings.Tests/Volo/Abp/Settings/SettingProvider_Tests.cs
index c3c22f76f9..8508daec12 100644
--- a/framework/test/Volo.Abp.Settings.Tests/Volo/Abp/Settings/SettingProvider_Tests.cs
+++ b/framework/test/Volo.Abp.Settings.Tests/Volo/Abp/Settings/SettingProvider_Tests.cs
@@ -1,5 +1,6 @@
 using System.Threading.Tasks;
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Settings
diff --git a/framework/test/Volo.Abp.TestApp.Tests/Volo/Abp/TestApp/TestAppTestBase.cs b/framework/test/Volo.Abp.TestApp.Tests/Volo/Abp/TestApp/TestAppTestBase.cs
index 589b42a21c..2903ec905a 100644
--- a/framework/test/Volo.Abp.TestApp.Tests/Volo/Abp/TestApp/TestAppTestBase.cs
+++ b/framework/test/Volo.Abp.TestApp.Tests/Volo/Abp/TestApp/TestAppTestBase.cs
@@ -1,3 +1,5 @@
+using Volo.Abp.Testing;
+
 namespace Volo.Abp.TestApp
 {
     public class TestAppTestBase : AbpIntegratedTest<TestAppTestModule>
diff --git a/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/MultiTenant_Creation_Tests.cs b/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/MultiTenant_Creation_Tests.cs
index c648fc66d4..b8a3e8449c 100644
--- a/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/MultiTenant_Creation_Tests.cs
+++ b/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/MultiTenant_Creation_Tests.cs
@@ -1,10 +1,7 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
 using Microsoft.Extensions.DependencyInjection;
 using NSubstitute;
 using Shouldly;
-using Volo.Abp.Data;
 using Volo.Abp.Domain.Repositories;
 using Volo.Abp.Modularity;
 using Volo.Abp.MultiTenancy;
diff --git a/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/TestAppTestBase.cs b/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/TestAppTestBase.cs
index 9f7ef1b34b..f21cc7371b 100644
--- a/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/TestAppTestBase.cs
+++ b/framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/Testing/TestAppTestBase.cs
@@ -2,6 +2,7 @@ using System;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Volo.Abp.Uow;
 
 namespace Volo.Abp.TestApp.Testing
diff --git a/framework/test/Volo.Abp.UI.Navigation.Tests/Volo/Abp/Ui/Navigation/MenuManager_Tests.cs b/framework/test/Volo.Abp.UI.Navigation.Tests/Volo/Abp/Ui/Navigation/MenuManager_Tests.cs
index 5fed48c828..96db1622b5 100644
--- a/framework/test/Volo.Abp.UI.Navigation.Tests/Volo/Abp/Ui/Navigation/MenuManager_Tests.cs
+++ b/framework/test/Volo.Abp.UI.Navigation.Tests/Volo/Abp/Ui/Navigation/MenuManager_Tests.cs
@@ -2,7 +2,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.Modularity;
-using Volo.Abp.UI.Navigation;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.UI.Navigation
diff --git a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Ambient_Scope_Tests.cs b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Ambient_Scope_Tests.cs
index c4b43bebe1..e0810467b3 100644
--- a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Ambient_Scope_Tests.cs
+++ b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Ambient_Scope_Tests.cs
@@ -1,6 +1,7 @@
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Uow
diff --git a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Events_Tests.cs b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Events_Tests.cs
index 0da84a04a9..04c14e1b14 100644
--- a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Events_Tests.cs
+++ b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Events_Tests.cs
@@ -2,6 +2,7 @@
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Uow
diff --git a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Nested_Tests.cs b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Nested_Tests.cs
index e322a25682..31ce688d84 100644
--- a/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Nested_Tests.cs
+++ b/framework/test/Volo.Abp.Uow.Tests/Volo/Abp/Uow/UnitOfWork_Nested_Tests.cs
@@ -1,6 +1,7 @@
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Uow
diff --git a/framework/test/Volo.Abp.Validation.Tests/Volo/Abp/Validation/ApplicationService_Validation_Tests.cs b/framework/test/Volo.Abp.Validation.Tests/Volo/Abp/Validation/ApplicationService_Validation_Tests.cs
index 2028ea60ca..9db3c5a13e 100644
--- a/framework/test/Volo.Abp.Validation.Tests/Volo/Abp/Validation/ApplicationService_Validation_Tests.cs
+++ b/framework/test/Volo.Abp.Validation.Tests/Volo/Abp/Validation/ApplicationService_Validation_Tests.cs
@@ -9,6 +9,7 @@ using Volo.Abp.Application.Dtos;
 using Volo.Abp.Autofac;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.Validation
diff --git a/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/DynamicFileProvider_Tests.cs b/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/DynamicFileProvider_Tests.cs
index 45aaa88fd4..3b44387da5 100644
--- a/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/DynamicFileProvider_Tests.cs
+++ b/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/DynamicFileProvider_Tests.cs
@@ -3,6 +3,7 @@ using Microsoft.Extensions.FileProviders;
 using Microsoft.Extensions.Primitives;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.VirtualFileSystem
diff --git a/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/VirtualFileProvider_Tests.cs b/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/VirtualFileProvider_Tests.cs
index e6464f6bd4..3d69b87b56 100644
--- a/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/VirtualFileProvider_Tests.cs
+++ b/framework/test/Volo.Abp.VirtualFileSystem.Tests/Volo/Abp/VirtualFileSystem/VirtualFileProvider_Tests.cs
@@ -4,6 +4,7 @@ using System.Text;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 using Xunit;
 
 namespace Volo.Abp.VirtualFileSystem