1 files changed, 30 insertions, 0 deletions
diff --git a/spec/services/protected_branches/destroy_service_spec.rb b/spec/services/protected_branches/destroy_service_spec.rb
new file mode 100644
index 00000000000..4a391b6c25c
--- /dev/null
+++ b/spec/services/protected_branches/destroy_service_spec.rb
@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+describe ProtectedBranches::DestroyService do
+  let(:protected_branch) { create(:protected_branch) }
+  let(:project) { protected_branch.project }
+  let(:user) { project.owner }
+
+  describe '#execute' do
+    subject(:service) { described_class.new(project, user) }
+
+    it 'destroys a protected branch' do
+      service.execute(protected_branch)
+
+      expect(protected_branch).to be_destroyed
+    end
+
+    context 'when a policy restricts rule deletion' do
+      before do
+        policy = instance_double(ProtectedBranchPolicy, can?: false)
+        expect(ProtectedBranchPolicy).to receive(:new).and_return(policy)
+      end
+
+      it "prevents deletion of the protected branch rule" do
+        expect do
+          service.execute(protected_branch)
+        end.to raise_error(Gitlab::Access::AccessDeniedError)
+      end
+    end
+  end
+end