def METHOD_NAME(self, mock):
    self.assertIsNone(self.embedder.transform(self.corpus[:0])[0])
    self.assertIsNone(self.embedder.transform(self.corpus[:0])[1])
    mock.request.assert_not_called()
    mock.get_response.assert_not_called()
    self.assertEqual(EmbedderCache("fasttext-en")._cache_dict, dict())