Don't include migrations files in the unit test level pattern

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

lib/quality/test_level.rb

@@ -5,6 +5,10 @@ module Quality
     UnknownTestLevelError = Class.new(StandardError)
 
     TEST_LEVEL_FOLDERS = {
+      migration: %w[
+        migrations
+        lib/gitlab/background_migration
+      ],
       unit: %w[
         bin
         config
@@ -19,7 +23,6 @@ module Quality
         initializers
         javascripts
         lib
-        migrations
         models
         policies
         presenters
@@ -36,10 +39,6 @@ module Quality
         workers
         elastic_integration
       ],
-      migration: %w[
-        migrations
-        lib/gitlab/background_migration
-      ],
       integration: %w[
         controllers
         mailers

spec/lib/quality/test_level_spec.rb

@@ -21,7 +21,7 @@ RSpec.describe Quality::TestLevel do
     context 'when level is unit' do
       it 'returns a pattern' do
         expect(subject.pattern(:unit))
-          .to eq("spec/{bin,config,db,dependencies,factories,finders,frontend,graphql,haml_lint,helpers,initializers,javascripts,lib,migrations,models,policies,presenters,rack_servers,routing,rubocop,serializers,services,sidekiq,tasks,uploaders,validators,views,workers,elastic_integration}{,/**/}*_spec.rb")
+          .to eq("spec/{bin,config,db,dependencies,factories,finders,frontend,graphql,haml_lint,helpers,initializers,javascripts,lib,models,policies,presenters,rack_servers,routing,rubocop,serializers,services,sidekiq,tasks,uploaders,validators,views,workers,elastic_integration}{,/**/}*_spec.rb")
       end
     end
 
@@ -82,7 +82,7 @@ RSpec.describe Quality::TestLevel do
     context 'when level is unit' do
       it 'returns a regexp' do
         expect(subject.regexp(:unit))
-          .to eq(%r{spec/(bin|config|db|dependencies|factories|finders|frontend|graphql|haml_lint|helpers|initializers|javascripts|lib|migrations|models|policies|presenters|rack_servers|routing|rubocop|serializers|services|sidekiq|tasks|uploaders|validators|views|workers|elastic_integration)})
+          .to eq(%r{spec/(bin|config|db|dependencies|factories|finders|frontend|graphql|haml_lint|helpers|initializers|javascripts|lib|models|policies|presenters|rack_servers|routing|rubocop|serializers|services|sidekiq|tasks|uploaders|validators|views|workers|elastic_integration)})
       end
     end