'``clone_to()`` creates a new filesystem.'

def test_clone_to_new_filesystem(self):

    pool = FilesystemStoragePool(FilePath(self.mktemp()))
    service = VolumeService(FilePath(self.mktemp()), pool, reactor=Clock())
    service.startService()
    parent = self.successResultOf(service.create(service.get(MY_VOLUME)))
    parent_file = parent.get_filesystem().get_path().child('file')
    parent_file.setContent('blah')
    volume = self.successResultOf(service.clone_to(parent, MY_VOLUME2))
    pool.get(volume).get_path().child('file').setContent('changed')
    self.assertEqual(parent_file.getContent(), 'blah')
