text: # -*- coding: utf-8 -*-
  # (c) Copyright 2022 Sensirion AG, Switzerland
  
  import pytest
  
  
  @pytest.mark.needs_device
  def test(device):
      """
      Test if get_serial_number() returns the expected value.
      """
      serial_number = device.get_serial_number()
      assert type(serial_number) is str
      assert 0 < len(serial_number) < 32
  