1 files changed, 14 insertions, 0 deletions
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 137795dcbc3..bfad1da1e21 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -3701,4 +3701,18 @@ describe MergeRequest do
       end
     end
   end
+
+  describe '#predefined_variables' do
+    let(:merge_request) { create(:merge_request) }
+
+    it 'caches all SQL-sourced data on the first call' do
+      control = ActiveRecord::QueryRecorder.new { merge_request.predefined_variables }.count
+
+      expect(control).to be > 0
+
+      count = ActiveRecord::QueryRecorder.new { merge_request.predefined_variables }.count
+
+      expect(count).to eq(0)
+    end
+  end
 end