1 files changed, 18 insertions, 2 deletions
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 310f806e3d3..656753da5f1 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -115,8 +115,24 @@ describe MergeRequest do
     let(:multiline_commits) { subject.commits.select(&is_multiline) }
     let(:singleline_commits) { subject.commits.reject(&is_multiline) }
 
-    it 'returns the oldest multiline commit message' do
-      expect(subject.default_squash_commit_message).to eq(multiline_commits.last.message)
+    context 'when the total number of commits is safe' do
+      it 'returns the oldest multiline commit message' do
+        expect(subject.default_squash_commit_message).to eq(multiline_commits.last.message)
+      end
+    end
+
+    context 'when the total number of commits is big' do
+      let(:safe_number) { 20 }
+
+      before do
+        stub_const('MergeRequestDiff::COMMITS_SAFE_SIZE', safe_number)
+      end
+
+      it 'returns the oldest multiline commit message from safe number of commits' do
+        expect(subject.default_squash_commit_message).to eq(
+          "remove emtpy file.(beacase git ignore empty file)\nadd whitespace test file.\n"
+        )
+      end
     end
 
     it 'returns the merge request title if there are no multiline commits' do