def testPersistenceWord2VecFormatCombinationWithStandardPersistence(self):
        """Test storing/loading the entire model and vocabulary in word2vec format chained with
         saving and loading via `save` and `load` methods`.
         It was possible prior to 1.0.0 release, now raises Exception"""
        tmpf = get_tmpfile('gensim_word2vec.tst')
        model = word2vec.Word2Vec(sentences, min_count=1)
        testvocab = get_tmpfile('gensim_word2vec.vocab')
        model.wv.save_word2vec_format(tmpf, testvocab, binary=True)
        binary_model_with_vocab_kv = keyedvectors.KeyedVectors.load_word2vec_format(tmpf, testvocab, binary=True)
        binary_model_with_vocab_kv.save(tmpf)
        self.assertRaises(AttributeError, word2vec.Word2Vec.load, tmpf)