1 files changed, 20 insertions, 0 deletions
diff --git a/spec/lib/gitlab/merge_requests/message_generator_spec.rb b/spec/lib/gitlab/merge_requests/message_generator_spec.rb
index df8804d38d4..b1a8ff26a86 100644
--- a/spec/lib/gitlab/merge_requests/message_generator_spec.rb
+++ b/spec/lib/gitlab/merge_requests/message_generator_spec.rb
@@ -96,6 +96,26 @@ RSpec.describe Gitlab::MergeRequests::MessageGenerator, feature_category: :code_
       end
     end
 
+    context 'when project has commit template with source project id' do
+      let(:merge_request) do
+        double(
+          :merge_request,
+          title: 'Fixes',
+          target_project: project,
+          source_project: project,
+          to_reference: '!123',
+          metrics: nil,
+          merge_user: nil
+        )
+      end
+
+      let(message_template_name) { '%{source_project_id}' }
+
+      it 'evaluates only necessary variables' do
+        expect(result_message).to eq project.id.to_s
+      end
+    end
+
     context 'when project has commit template with closed issues' do
       let(message_template_name) { <<~MSG.rstrip }
         Merge branch '%{source_branch}' into '%{target_branch}'