1 files changed, 10 insertions, 0 deletions
diff --git a/spec/lib/gitlab/gitaly_client/ref_service_spec.rb b/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
index bd96e9baf1d..b413c47e033 100644
--- a/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
+++ b/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
@@ -102,6 +102,16 @@ RSpec.describe Gitlab::GitalyClient::RefService do
 
       client.find_branch('name')
     end
+
+    context 'when Gitaly returns a ambiguios reference error' do
+      it 'raises an UnknownRef error' do
+        expect_any_instance_of(Gitaly::RefService::Stub)
+          .to receive(:find_branch)
+          .and_raise(GRPC::BadStatus.new(2, 'reference is ambiguous'))
+
+        expect { client.find_branch('name') }.to raise_error(Gitlab::Git::AmbiguousRef, 'branch is ambiguous: name')
+      end
+    end
   end
 
   describe '#find_tag' do