Properly detect EE-namespaced background migration in TestLevel

Signed-off-by: Rémy Coutable <remy@rymai.me>

lib/quality/test_level.rb

@@ -8,6 +8,7 @@ module Quality
       migration: %w[
         migrations
         lib/gitlab/background_migration
+        lib/ee/gitlab/background_migration
       ],
       unit: %w[
         bin

spec/lib/quality/test_level_spec.rb

@@ -28,7 +28,7 @@ RSpec.describe Quality::TestLevel do
     context 'when level is migration' do
       it 'returns a pattern' do
         expect(subject.pattern(:migration))
-          .to eq("spec/{migrations,lib/gitlab/background_migration}{,/**/}*_spec.rb")
+          .to eq("spec/{migrations,lib/gitlab/background_migration,lib/ee/gitlab/background_migration}{,/**/}*_spec.rb")
       end
     end
 
@@ -89,7 +89,7 @@ RSpec.describe Quality::TestLevel do
     context 'when level is migration' do
       it 'returns a regexp' do
         expect(subject.regexp(:migration))
-          .to eq(%r{spec/(migrations|lib/gitlab/background_migration)})
+          .to eq(%r{spec/(migrations|lib/gitlab/background_migration|lib/ee/gitlab/background_migration)})
       end
     end
 
@@ -134,7 +134,7 @@ RSpec.describe Quality::TestLevel do
       expect(subject.level_for('spec/migrations/add_default_and_free_plans_spec.rb')).to eq(:migration)
     end
 
-    it 'returns the correct level for a background_migration test' do
+    it 'returns the correct level for a background migration test' do
       expect(subject.level_for('spec/lib/gitlab/background_migration/archive_legacy_traces_spec.rb')).to eq(:migration)
     end
 
@@ -142,6 +142,10 @@ RSpec.describe Quality::TestLevel do
       expect(described_class.new('ee/').level_for('ee/spec/migrations/geo/migrate_ci_job_artifacts_to_separate_registry_spec.rb')).to eq(:migration)
     end
 
+    it 'returns the correct level for a EE-namespaced background migration test' do
+      expect(described_class.new('ee/').level_for('ee/spec/lib/ee/gitlab/background_migration/prune_orphaned_geo_events_spec.rb')).to eq(:migration)
+    end
+
     it 'returns the correct level for an integration test' do
       expect(subject.level_for('spec/mailers/abuse_report_mailer_spec.rb')).to eq(:integration)
     end