Method worker

tests/test_control_layer.py:284–290

()

        errors = []

        def worker():
            try:
                for _ in range(20):
                    cb.record_failure()
                    cb.record_success()
            except Exception as e:
                errors.append(e)

        threads = [threading.Thread(target=worker) for _ in range(5)]
        for t in threads: t.start()