1 files changed, 14 insertions, 0 deletions
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 30a5a3bbff7..13a6d125ebc 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -1855,4 +1855,18 @@ describe MergeRequest do
   it_behaves_like 'throttled touch' do
     subject { create(:merge_request, updated_at: 1.hour.ago) }
   end
+
+  context 'state machine transitions' do
+    describe '#unlock_mr' do
+      subject { create(:merge_request, state: 'locked') }
+
+      it 'updates merge request head pipeline' do
+        pipeline = create(:ci_empty_pipeline, project: subject.project, ref: subject.source_branch, sha: subject.source_branch_sha)
+
+        subject.unlock_mr
+
+        expect(subject.reload.head_pipeline).to eq(pipeline)
+      end
+    end
+  end
 end