@staticmethod
  def _DeviceToSysfsPath(device):
    return '%s-%s' % (
        device.getBusNumber(),
        '.'.join([str(item) for item in device.GetPortNumberList()]))
Test that is_ignorable returns the correct value in all relevant
dataset/ETHPy150Open google/openhtf/openhtf/plugs/usb/local_usb.py/LibUsbHandle._DeviceToSysfsPath--crossover with--dataset/ETHPy150Open mozilla/addons-server/src/olympia/devhub/tests/test_utils.py/TestValidationComparator.test_is_ignorable