'If ``lost+found`` is recreated, remounting it removes it.'

def test_lost_found_deleted_remount(self):

    mountpoint = mountroot_for_test(self).child('mount-test')
    scenario = self._run_success_test(mountpoint)
    check_call(['mklost+found'], cwd=mountpoint.path)
    check_call(['umount', mountpoint.path])
    self.successResultOf(run_state_change(scenario.state_change(), scenario.deployer, InMemoryStatePersister()))
    self.assertEqual(mountpoint.children(), [])
