Fix nature of FactoryBot traits that create associations of Namespace

This change fixes the nature of FactoryBot traits
that create associations of Namespace

spec/factories/namespaces.rb

@@ -23,15 +23,21 @@ FactoryBot.define do
     end
 
     trait :with_aggregation_schedule do
-      association :aggregation_schedule, factory: :namespace_aggregation_schedules
+      after(:create) do |namespace|
+        create(:namespace_aggregation_schedules, namespace: namespace)
+      end
     end
 
     trait :with_root_storage_statistics do
-      association :root_storage_statistics, factory: :namespace_root_storage_statistics
+      after(:create) do |namespace|
+        create(:namespace_root_storage_statistics, namespace: namespace)
+      end
     end
 
     trait :with_namespace_settings do
-      association :namespace_settings, factory: :namespace_settings
+      after(:create) do |namespace|
+        create(:namespace_settings, namespace: namespace)
+      end
     end
 
     # Construct a hierarchy underneath the namespace.

spec/models/namespace_spec.rb

@@ -1502,4 +1502,30 @@ RSpec.describe Namespace do
       it { is_expected.to be(true) }
     end
   end
+
+  context 'behaviour of FactoryBot traits that create associations' do
+    context 'creating a namespace with an associated aggregation_schedule record' do
+      it 'creates only one Namespace record and one Namespace::AggregationSchedule record' do
+        expect { create(:namespace, :with_aggregation_schedule) }
+          .to change { Namespace.count }.by(1)
+          .and change { Namespace::AggregationSchedule.count }.by(1)
+      end
+    end
+
+    context 'creating a namespace with an associated root_storage_statistics record' do
+      it 'creates only one Namespace record and one Namespace::RootStorageStatistics record' do
+        expect { create(:namespace, :with_root_storage_statistics) }
+          .to change { Namespace.count }.by(1)
+          .and change { Namespace::RootStorageStatistics.count }.by(1)
+      end
+    end
+
+    context 'creating a namespace with an associated namespace_settings record' do
+      it 'creates only one Namespace record and one NamespaceSetting record' do
+        expect { create(:namespace, :with_namespace_settings) }
+          .to change { Namespace.count }.by(1)
+          .and change { NamespaceSetting.count }.by(1)
+      end
+    end
+  end
 end