1 files changed, 25 insertions, 0 deletions
diff --git a/spec/lib/gitlab/gitaly_client/commit_service_spec.rb b/spec/lib/gitlab/gitaly_client/commit_service_spec.rb
index 2eaf4222964..f32fe5d8150 100644
--- a/spec/lib/gitlab/gitaly_client/commit_service_spec.rb
+++ b/spec/lib/gitlab/gitaly_client/commit_service_spec.rb
@@ -140,4 +140,29 @@ describe Gitlab::GitalyClient::CommitService do
       described_class.new(repository).find_commit(revision)
     end
   end
+
+  describe '#patch' do
+    let(:request) do
+      Gitaly::CommitPatchRequest.new(
+        repository: repository_message, revision: revision
+      )
+    end
+    let(:response) { [double(data: "my "), double(data: "diff")] }
+
+    subject { described_class.new(repository).patch(revision) }
+
+    it 'sends an RPC request' do
+      expect_any_instance_of(Gitaly::DiffService::Stub).to receive(:commit_patch)
+        .with(request, kind_of(Hash)).and_return([])
+
+      subject
+    end
+
+    it 'concatenates the responses data' do
+      allow_any_instance_of(Gitaly::DiffService::Stub).to receive(:commit_patch)
+        .with(request, kind_of(Hash)).and_return(response)
+
+      expect(subject).to eq("my diff")
+    end
+  end
 end