def CheckFinished(self):
    assert self._daemon, "Daemon status missing"

    if self._ts_finished:
      return True

    if self._daemon.exit_status is None:
      # TODO: Adjust delay for ETA expiring soon
      self._CheckProgress()
      return False

    self._ts_finished = time.time()

    self._ReportFinished(self._daemon.exit_status == 0,
                         self._daemon.error_message)

    return True
Test that the empty option is there.
dataset/ETHPy150Open ganeti/ganeti/lib/masterd/instance.py/_DiskImportExportBase.CheckFinished--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/tests/regressiontests/localflavor/us/tests.py/USLocalFlavorTests.test_field_blank_option