def METHOD_NAME(self):
    self._version_map_blob.download_as_text.return_value = \
        'nomulus-20200925-RC02,backend,nomulus-backend-v008'
    self.assertEqual(
        self._client.get_versions_by_release(self._ENV,
                                             'nomulus-20200925-RC02'),
        frozenset([common.VersionKey('backend', 'nomulus-backend-v008')]))