def test_get_hash_none(self):
        expected = sha512(b'null')
        actual = _get_hash(None)
        self.assertEqual(expected.hexdigest(), actual.hexdigest())
Ensure the hash of Python's None is actually a hash of 'null' (since
dataset/ETHPy150Open ntoll/p4p2p/test/dht/test_crypto.py/TestGetHashFunction.test_get_hash_none