Fix unit tests

framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/HardDelete_Tests.cs

@@ -2,9 +2,11 @@
 using System.Collections.Generic;
 using System.Text;
 using Volo.Abp.TestApp.Testing;
+using Xunit;
 
 namespace Volo.Abp.MongoDB.DataFiltering
 {
+    [Collection(MongoTestCollection.Name)]
     public class HardDelete_Tests : HardDelete_Tests<AbpMongoDbTestModule>
     {
     }

modules/identity/test/Volo.Abp.Identity.MongoDB.Tests/Volo/Abp/Identity/MongoDB/OrganizationUnitRepository_Tests.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using Xunit;
 
 namespace Volo.Abp.Identity.MongoDB
 {
+     [Collection(MongoTestCollection.Name)]
     public class OrganizationUnitRepository_Tests : OrganizationUnitRepository_Tests<AbpIdentityMongoDbTestModule>
     {
     }