Refactored.

src/Volo.Abp.AspNetCore.TestBase/Volo/Abp/AspNetCore/TestBase/AbpAspNetCoreIntegratedTestBase.cs

@@ -6,7 +6,6 @@ using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Routing;
 using Microsoft.AspNetCore.TestHost;
 using Microsoft.Extensions.DependencyInjection;
-using Volo.Abp.TestBase;
 
 namespace Volo.Abp.AspNetCore.TestBase
 {

src/Volo.Abp.Authorization/Microsoft/Extensions/DependencyInjection/AbpAuthorizationServiceCollectionExtensions.cs

@@ -0,0 +1,13 @@
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Volo.Abp.Authorization.Permissions;
+
+namespace Microsoft.Extensions.DependencyInjection
+{
+    public static class AbpAuthorizationServiceCollectionExtensions
+    {
+        public static IServiceCollection AddAlwaysAllowPermissionChecker(this IServiceCollection services)
+        {
+            return services.Replace(ServiceDescriptor.Singleton<IPermissionChecker, AlwaysAllowPermissionChecker>());
+        }
+    }
+}

src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/AlwaysAllowPermissionChecker.cs

@@ -0,0 +1,18 @@
+using System.Threading.Tasks;
+
+namespace Volo.Abp.Authorization.Permissions
+{
+    /// <summary>
+    /// Always allows for any permission.
+    /// 
+    /// Use IServiceCollection.AddAlwaysAllowPermissionChecker() to replace
+    /// IPermissionChecker with this class. This is useful for tests.
+    /// </summary>
+    public class AlwaysAllowPermissionChecker : IPermissionChecker
+    {
+        public Task<PermissionGrantInfo> CheckAsync(string name)
+        {
+            return Task.FromResult(new PermissionGrantInfo(name, true, "AlwaysAllow"));
+        }
+    }
+}

src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/IPermissionStore.cs

@@ -5,6 +5,10 @@ namespace Volo.Abp.Authorization.Permissions
 {
     public interface IPermissionStore
     {
-        Task<bool> IsGrantedAsync([NotNull] string name, [CanBeNull] string providerName, [CanBeNull] string providerKey);
+        Task<bool> IsGrantedAsync(
+            [NotNull] string name,
+            [CanBeNull] string providerName,
+            [CanBeNull] string providerKey
+        );
     }
 }

src/Volo.Abp.TestBase/AbpTestBaseModule.cs

@@ -1,9 +0,0 @@
-using Volo.Abp.Modularity;
-
-namespace Volo.Abp.TestBase
-{
-    public class AbpTestBaseModule : AbpModule
-    {
-        
-    }
-}

src/Volo.Abp.TestBase/Volo.Abp.TestBase.csproj

@@ -10,7 +10,7 @@
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
     <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
-    <RootNamespace>Volo.Abp.TestBase</RootNamespace>
+    <RootNamespace />
   </PropertyGroup>
 
   <ItemGroup>

src/Volo.Abp.TestBase/Volo/Abp/AbpIntegratedTest.cs

@@ -2,7 +2,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.Modularity;
 
-namespace Volo.Abp.TestBase
+namespace Volo.Abp
 {
     public abstract class AbpIntegratedTest<TStartupModule> : AbpTestBaseWithServiceProvider, IDisposable
         where TStartupModule : IAbpModule
@@ -15,7 +15,7 @@ namespace Volo.Abp.TestBase
 
         protected IServiceScope TestServiceScope { get; }
 
-        public AbpIntegratedTest()
+        protected AbpIntegratedTest()
         {
             var services = CreateServiceCollection();
 
@@ -57,7 +57,7 @@ namespace Volo.Abp.TestBase
 	        return services.BuildServiceProviderFromFactory();
         }
         
-        public void Dispose()
+        public virtual void Dispose()
         {
             Application.Shutdown();
             TestServiceScope.Dispose();

src/Volo.Abp.TestBase/Volo/Abp/AbpTestBaseModule.cs

@@ -0,0 +1,13 @@
+using Microsoft.Extensions.DependencyInjection;
+using Volo.Abp.Modularity;
+
+namespace Volo.Abp
+{
+    public class AbpTestBaseModule : AbpModule
+    {
+        public override void ConfigureServices(IServiceCollection services)
+        {
+            
+        }
+    }
+}

src/Volo.Abp.TestBase/Volo/Abp/AbpTestBaseWithServiceProvider.cs

@@ -1,7 +1,7 @@
 using System;
 using Microsoft.Extensions.DependencyInjection;
 
-namespace Volo.Abp.TestBase
+namespace Volo.Abp
 {
     public abstract class AbpTestBaseWithServiceProvider
     {

test/Volo.Abp.Core.Tests/Microsoft/Extensions/DependencyInjection/DependencyInjection_Tests.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Shouldly;
+using Volo.Abp;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Modularity;
 using Volo.Abp.TestBase;

test/Volo.Abp.Identity.Application.Tests/Volo/Abp/Identity/AbpIdentityApplicationTestModule.cs

@@ -9,11 +9,14 @@ namespace Volo.Abp.Identity
         typeof(AbpIdentityApplicationModule), 
         typeof(AbpIdentityEntityFrameworkCoreModule), 
         typeof(AbpAutofacModule),
-        typeof(AbpIdentityDomainTestModule))]
+        typeof(AbpIdentityDomainTestModule),
+        typeof(AbpTestBaseModule)
+        )]
     public class AbpIdentityApplicationTestModule : AbpModule
     {
         public override void ConfigureServices(IServiceCollection services)
         {
+            services.AddAlwaysAllowPermissionChecker();
             services.AddAssemblyOf<AbpIdentityApplicationTestModule>();
         }
     }