Fix unit tests

framework/test/Volo.Abp.Http.Client.Tests/Volo/Abp/Http/DynamicProxying/TestObjectToPath.cs

@@ -15,9 +15,8 @@ public class TestObjectToPath : IObjectToPath<int>, ITransientDependency
             {
                 value = 888;
             }
-            return Task.FromResult(value.ToString());
         }
 
-        return Task.FromResult<string>(null);
+        return Task.FromResult(value.ToString());
     }
 }

framework/test/Volo.Abp.TestApp/Volo/Abp/TestApp/TestAppModule.cs

@@ -27,7 +27,8 @@ public class TestAppModule : AbpModule
     {
         ConfigureAutoMapper();
         ConfigureDistributedEventBus();
-        
+
+        context.Services.AddHttpContextAccessor();
         context.Services.Replace(ServiceDescriptor.Singleton<IDistributedCache, TestMemoryDistributedCache>());
         context.Services.AddEntityCache<Product, Guid>();
         context.Services.AddEntityCache<Product, ProductCacheItem, Guid>();