def test_mnemonic_to_seed(self):
     for test_name, test in SEED_TEST_CASES.items():
         if test.words_hex is not None:
             self.assertEqual(test.words_hex,
                              bh2u(test.words.encode('utf8')),
                              msg=test_name)
         self.assertTrue(is_new_seed(test.words, prefix=test.seed_version),
                         msg=test_name)
         m = mnemonic.Mnemonic(lang=test.lang)
         if test.entropy is not None:
             self.assertEqual(test.entropy,
                              m.mnemonic_decode(test.words),
                              msg=test_name)
         if test.passphrase_hex is not None:
             self.assertEqual(test.passphrase_hex,
                              bh2u(test.passphrase.encode('utf8')),
                              msg=test_name)
         seed = mnemonic.Mnemonic.mnemonic_to_seed(
             mnemonic=test.words, passphrase=test.passphrase)
         self.assertEqual(test.bip32_seed, bh2u(seed), msg=test_name)
    def test_new_seed(self):
        seed = "cram swing cover prefer miss modify ritual silly deliver chunk behind inform able"
        self.assertTrue(is_new_seed(seed))

        seed = "cram swing cover prefer miss modify ritual silly deliver chunk behind inform"
        self.assertFalse(is_new_seed(seed))