def METHOD_NAME(self):
    cfg = StatsTransformerConfig(stats_uri=None, scene_group='group1')
    cfg.update(MockRVPipelineConfig())
    self.assertEqual(cfg.stats_uri,
                     '/abc/def/analyze/stats/group1/stats.json')
    cfg.update_root('/path/to/bundle')
    self.assertEqual(cfg.stats_uri,
                     '/path/to/bundle/analyze/stats/group1/stats.json')