Add latest changes from gitlab-org/gitlab@master

1 files changed, 42 insertions, 0 deletions

diff --git a/spec/lib/gitlab/import_export/legacy_relation_tree_saver_spec.rb b/spec/lib/gitlab/import_export/legacy_relation_tree_saver_spec.rb
new file mode 100644
index 00000000000..db77bd338e1
--- /dev/null
+++ b/spec/lib/gitlab/import_export/legacy_relation_tree_saver_spec.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::ImportExport::LegacyRelationTreeSaver do
+  let(:exportable) { create(:group) }
+  let(:relation_tree_saver) { described_class.new }
+  let(:tree) { {} }
+
+  describe '#serialize' do
+    context 'when :export_fast_serialize feature is enabled' do
+      let(:serializer) { instance_double(Gitlab::ImportExport::FastHashSerializer) }
+
+      before do
+        stub_feature_flags(export_fast_serialize: true)
+      end
+
+      it 'uses FastHashSerializer' do
+        expect(Gitlab::ImportExport::FastHashSerializer)
+          .to receive(:new)
+          .with(exportable, tree)
+          .and_return(serializer)
+
+        expect(serializer).to receive(:execute)
+
+        relation_tree_saver.serialize(exportable, tree)
+      end
+    end
+
+    context 'when :export_fast_serialize feature is disabled' do
+      before do
+        stub_feature_flags(export_fast_serialize: false)
+      end
+
+      it 'is serialized via built-in `as_json`' do
+        expect(exportable).to receive(:as_json).with(tree)
+
+        relation_tree_saver.serialize(exportable, tree)
+      end
+    end
+  end
+end