[fix #504] Dossier: refused -> refuse

spec/serializers/dossier_serializer_spec.rb

@@ -21,5 +21,11 @@ describe DossierSerializer do
 
       it { is_expected.to include(state: 'closed') }
     end
+
+    context 'when the dossier is refuse' do
+      let(:dossier) { create(:dossier, state: :refuse) }
+
+      it { is_expected.to include(state: 'refused') }
+    end
   end
 end