1 files changed, 56 insertions, 0 deletions
diff --git a/spec/services/projects/move_notification_settings_service_spec.rb b/spec/services/projects/move_notification_settings_service_spec.rb
new file mode 100644
index 00000000000..24d69eef86a
--- /dev/null
+++ b/spec/services/projects/move_notification_settings_service_spec.rb
@@ -0,0 +1,56 @@
+require 'spec_helper'
+
+describe Projects::MoveNotificationSettingsService do
+  let(:user) { create(:user) }
+  let(:project_with_notifications) { create(:project, namespace: user.namespace) }
+  let(:target_project) { create(:project, namespace: user.namespace) }
+
+  subject { described_class.new(target_project, user) }
+
+  describe '#execute' do
+    context 'with notification settings' do
+      before do
+        create_list(:notification_setting, 2, source: project_with_notifications)
+      end
+
+      it 'moves the user\'s notification settings from one project to another' do
+        expect(project_with_notifications.notification_settings.count).to eq 3
+        expect(target_project.notification_settings.count).to eq 1
+
+        subject.execute(project_with_notifications)
+
+        expect(project_with_notifications.notification_settings.count).to eq 0
+        expect(target_project.notification_settings.count).to eq 3
+      end
+
+      it 'rollbacks changes if transaction fails' do
+        allow(subject).to receive(:success).and_raise(StandardError)
+
+        expect { subject.execute(project_with_notifications) }.to raise_error(StandardError)
+
+        expect(project_with_notifications.notification_settings.count).to eq 3
+        expect(target_project.notification_settings.count).to eq 1
+      end
+    end
+
+    it 'does not move existent notification settings in the current project' do
+      expect(project_with_notifications.notification_settings.count).to eq 1
+      expect(target_project.notification_settings.count).to eq 1
+      expect(user.notification_settings.count).to eq 2
+
+      subject.execute(project_with_notifications)
+
+      expect(user.notification_settings.count).to eq 1
+    end
+
+    context 'when remove_remaining_elements is false' do
+      let(:options) { { remove_remaining_elements: false } }
+
+      it 'does not remove remaining notification settings' do
+        subject.execute(project_with_notifications, options)
+
+        expect(project_with_notifications.notification_settings.count).not_to eq 0
+      end
+    end
+  end
+end