def METHOD_NAME(self):
    cluster = Cluster(name='test1',
                      cloud_provider=None,
                      setup_provider=None,
                      user_key_name='key')
    self.storage.save_or_update(cluster)
    clusterpath = os.path.join(self.path, 'test1' + self.saved_file_suffix)
    assert os.path.exists(clusterpath)
    self.storage.delete(cluster)
    assert not os.path.exists(clusterpath)