Add NullAbpDistributedLock and register as default lock for unit test.

framework/src/Volo.Abp.DistributedLocking.Abstractions/Volo/Abp/DistributedLocking/NullAbpDistributedLock.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Volo.Abp.DistributedLocking;
+
+/// <summary>
+/// This implementation of <see cref="IAbpDistributedLock"/> does not provide any distributed locking functionality.
+/// Useful in scenarios where distributed locking is not required or during testing.
+/// </summary>
+public class NullAbpDistributedLock : IAbpDistributedLock
+{
+    public Task<IAbpDistributedLockHandle?> TryAcquireAsync(string name, TimeSpan timeout = default, CancellationToken cancellationToken = default)
+    {
+        return Task.FromResult<IAbpDistributedLockHandle?>(new LocalAbpDistributedLockHandle(NullDisposable.Instance));
+    }
+}

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/AbpPermissionManagementDomainModule.cs

@@ -2,6 +2,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
@@ -11,6 +12,7 @@ using Volo.Abp.Authorization.Permissions;
 using Volo.Abp.Caching;
 using Volo.Abp.Data;
 using Volo.Abp.DependencyInjection;
+using Volo.Abp.DistributedLocking;
 using Volo.Abp.Domain;
 using Volo.Abp.Json;
 using Volo.Abp.Modularity;
@@ -29,6 +31,8 @@ public class AbpPermissionManagementDomainModule : AbpModule
 
     public override void ConfigureServices(ServiceConfigurationContext context)
     {
+        context.Services.Replace(ServiceDescriptor.Singleton<IAbpDistributedLock, NullAbpDistributedLock>());
+
         if (context.Services.IsDataMigrationEnvironment())
         {
             Configure<PermissionManagementOptions>(options =>