download a dossier as zip with all attachments

spec/lib/active_storage/downloadable_file_spec.rb

@@ -0,0 +1,26 @@
+describe ActiveStorage::DownloadableFile do
+  let(:tpjs) { [tpj_not_mandatory] }
+  let!(:tpj_not_mandatory) do
+    TypeDePieceJustificative.create(libelle: 'not mandatory', mandatory: false)
+  end
+  let(:procedure) { Procedure.create(types_de_piece_justificative: tpjs) }
+  let(:dossier) { Dossier.create(procedure: procedure) }
+  let(:procedure) { Procedure.create(types_de_piece_justificative: tpjs) }
+  let(:dossier) { Dossier.create(procedure: procedure) }
+  let(:list) { ActiveStorage::DownloadableFile.create_list_from_dossier(dossier) }
+
+  describe 'create_list_from_dossier' do
+    context 'when no piece_justificative is present' do
+      it { expect(list).to match([]) }
+    end
+
+    context 'when there is a piece_justificative' do
+      let (:pj) { create(:champ, :piece_justificative, :with_piece_justificative_file) }
+      before do
+        dossier.champs = [pj]
+      end
+
+      it { expect(list.length).to be 1 }
+    end
+  end
+end