1 files changed, 10 insertions, 0 deletions
diff --git a/spec/services/projects/enable_deploy_key_service_spec.rb b/spec/services/projects/enable_deploy_key_service_spec.rb
index a37510cf159..78626fbad4b 100644
--- a/spec/services/projects/enable_deploy_key_service_spec.rb
+++ b/spec/services/projects/enable_deploy_key_service_spec.rb
@@ -21,6 +21,16 @@ describe Projects::EnableDeployKeyService, services: true do
     end
   end
 
+  context 'add the same key twice' do
+    before do
+      project.deploy_keys << deploy_key
+    end
+
+    it 'returns existing key' do
+      expect(service.execute).to eq(deploy_key)
+    end
+  end
+
   def service
     Projects::EnableDeployKeyService.new(project, user, params)
   end