def test_eval_corpus(self):
        sent1 = ["a", "b", "c", "d", "a"]
        sent2 = ["a", "b", "c", "d+", "a", "b", "c", "d", "e", "f"]
        res = RakutenMA.eval_corpus([sent1], [sent2])
        assert_equals(res[0], 0.3)
        assert_equals(res[1], 0.6)
        assert_equals(res[2], 0.4)

        assert_raises(Exception, RakutenMA.eval_corpus, (["a"], []))