old_contents: import unittest
  from fuel_test.cobbler.cobbler_test_case import CobblerTestCase
  from fuel_test.manifest import Manifest
  from fuel_test.settings import OPENSTACK_SNAPSHOT
  
  class SingleTestCase(CobblerTestCase):
      def test_single(self):
          Manifest().write_openstack_single_manifest(
              remote=self.remote(),
              ci=self.ci(),
          )
          self.validate(
              self.nodes().controllers,
              'puppet agent --test')
          self.environment().snapshot(OPENSTACK_SNAPSHOT, force=True)
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: import unittest
  from fuel_test.cobbler.cobbler_test_case import CobblerTestCase
  from fuel_test.manifest import Manifest
  from fuel_test.settings import OPENSTACK_SNAPSHOT
  
  class SingleTestCase(CobblerTestCase):
      def test_single(self):
          Manifest().write_openstack_single_manifest(
              remote=self.remote(),
              ci=self.ci(),
              quantum=False,
          )
          self.validate(
              self.nodes().controllers,
              'puppet agent --test')
          self.environment().snapshot(OPENSTACK_SNAPSHOT, force=True)
  
  if __name__ == '__main__':
      unittest.main()
  
subject: Switch off quantum at single node in test