diff --git a/modules/identityserver/Volo.Abp.IdentityServer.sln b/modules/identityserver/Volo.Abp.IdentityServer.sln
index 03e2b5a9af..81cf037e27 100644
--- a/modules/identityserver/Volo.Abp.IdentityServer.sln
+++ b/modules/identityserver/Volo.Abp.IdentityServer.sln
@@ -15,11 +15,13 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{2C792EC1-B
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.IdentityServer.EntityFrameworkCore.Tests", "test\Volo.Abp.IdentityServer.EntityFrameworkCore.Tests\Volo.Abp.IdentityServer.EntityFrameworkCore.Tests.csproj", "{8B8FBA95-4FA2-4438-A387-7C5EC7A89E82}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.IdentityServer.MongoDB", "src\Volo.Abp.IdentityServer.MongoDB\Volo.Abp.IdentityServer.MongoDB.csproj", "{FC6CC65A-27B9-43D4-8F20-D941B4987B2C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.IdentityServer.MongoDB", "src\Volo.Abp.IdentityServer.MongoDB\Volo.Abp.IdentityServer.MongoDB.csproj", "{FC6CC65A-27B9-43D4-8F20-D941B4987B2C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.IdentityServer.TestBase", "test\Volo.Abp.IdentityServer.TestBase\Volo.Abp.IdentityServer.TestBase.csproj", "{9CD1BFDB-DD76-4194-ACAD-A64541AC2069}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.IdentityServer.TestBase", "test\Volo.Abp.IdentityServer.TestBase\Volo.Abp.IdentityServer.TestBase.csproj", "{9CD1BFDB-DD76-4194-ACAD-A64541AC2069}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.IdentityServer.MongoDB.Tests", "test\Volo.Abp.IdentityServer.MongoDB.Tests\Volo.Abp.IdentityServer.MongoDB.Tests.csproj", "{2E18B471-7FCA-497B-90FF-6AA9172CC62F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.IdentityServer.MongoDB.Tests", "test\Volo.Abp.IdentityServer.MongoDB.Tests\Volo.Abp.IdentityServer.MongoDB.Tests.csproj", "{2E18B471-7FCA-497B-90FF-6AA9172CC62F}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.IdentityServer.Domain.Tests", "test\Volo.Abp.IdentityServer.Domain.Tests\Volo.Abp.IdentityServer.Domain.Tests.csproj", "{0680D0B6-51C0-4812-8A0B-192FDE717E60}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -55,6 +57,10 @@ Global
 		{2E18B471-7FCA-497B-90FF-6AA9172CC62F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2E18B471-7FCA-497B-90FF-6AA9172CC62F}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2E18B471-7FCA-497B-90FF-6AA9172CC62F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0680D0B6-51C0-4812-8A0B-192FDE717E60}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0680D0B6-51C0-4812-8A0B-192FDE717E60}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0680D0B6-51C0-4812-8A0B-192FDE717E60}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0680D0B6-51C0-4812-8A0B-192FDE717E60}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -67,6 +73,7 @@ Global
 		{FC6CC65A-27B9-43D4-8F20-D941B4987B2C} = {59A0FC0F-EA6D-477B-84A7-3B1E41B4C858}
 		{9CD1BFDB-DD76-4194-ACAD-A64541AC2069} = {2C792EC1-BA27-44ED-B7CC-D0939553F1B2}
 		{2E18B471-7FCA-497B-90FF-6AA9172CC62F} = {2C792EC1-BA27-44ED-B7CC-D0939553F1B2}
+		{0680D0B6-51C0-4812-8A0B-192FDE717E60} = {2C792EC1-BA27-44ED-B7CC-D0939553F1B2}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {45562023-C330-4060-A583-2BA10F472D3D}
diff --git a/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo.Abp.IdentityServer.Domain.Tests.csproj b/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo.Abp.IdentityServer.Domain.Tests.csproj
new file mode 100644
index 0000000000..1bb887731b
--- /dev/null
+++ b/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo.Abp.IdentityServer.Domain.Tests.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <AssemblyName>Volo.Abp.IdentityServer.Domain.Tests</AssemblyName>
+    <PackageId>Volo.Abp.IdentityServer.Domain.Tests</PackageId>
+    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
+    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
+    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
+    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
+    <RootNamespace />
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Volo.Abp.IdentityServer.MongoDB.Tests\Volo.Abp.IdentityServer.MongoDB.Tests.csproj" />
+    <ProjectReference Include="..\Volo.Abp.IdentityServer.TestBase\Volo.Abp.IdentityServer.TestBase.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.2" />
+  </ItemGroup>
+
+</Project>
diff --git a/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo/Abp/IdentityServer/AbpIdentityServerDomainTestModule.cs b/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo/Abp/IdentityServer/AbpIdentityServerDomainTestModule.cs
new file mode 100644
index 0000000000..d3f50e3276
--- /dev/null
+++ b/modules/identityserver/test/Volo.Abp.IdentityServer.Domain.Tests/Volo/Abp/IdentityServer/AbpIdentityServerDomainTestModule.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Microsoft.Extensions.DependencyInjection;
+using Volo.Abp.Authorization.Permissions;
+using Volo.Abp.Modularity;
+
+namespace Volo.Abp.IdentityServer
+{
+    [DependsOn(typeof(AbpIdentityServerMongoDbTestModule))]
+    public class AbpIdentityServerDomainTestModule : AbpModule
+    {
+
+    }
+}
diff --git a/modules/identityserver/test/Volo.Abp.IdentityServer.TestBase/Volo/Abp/IdentityServer/IdentityResourceRepository_Tests.cs b/modules/identityserver/test/Volo.Abp.IdentityServer.TestBase/Volo/Abp/IdentityServer/IdentityResourceRepository_Tests.cs
index a9487657b3..2c58edf553 100644
--- a/modules/identityserver/test/Volo.Abp.IdentityServer.TestBase/Volo/Abp/IdentityServer/IdentityResourceRepository_Tests.cs
+++ b/modules/identityserver/test/Volo.Abp.IdentityServer.TestBase/Volo/Abp/IdentityServer/IdentityResourceRepository_Tests.cs
@@ -13,7 +13,8 @@ namespace Volo.Abp.IdentityServer
     public class IdentityResourceRepository_Tests<TStartupModule> : AbpIdentityServerTestBase<TStartupModule>
         where TStartupModule : IAbpModule
     {
-        private IIdentityResourceRepository identityResourceRepository;
+        private readonly IIdentityResourceRepository identityResourceRepository;
+
         public IdentityResourceRepository_Tests()
         {
             identityResourceRepository = ServiceProvider.GetRequiredService<IIdentityResourceRepository>();