def test_codec_index_identity(self):
"""Test that encoding and decoding an index works."""
for i in range(200):
index = i * 100000
encoded = crypto.encode_index(index)
self.assertEqual(6, len(encoded))
self.assertEqual(crypto.INDEX_ENCODE_LENGTH, len(encoded))
decoded = crypto.decode_index(encoded)
self.assertEqual(index, decoded)
def test_decode_index_bad(self):
"""Test that encode index detects bad input."""
with self.assertRaises(CryptoError):
crypto.decode_index("asdf")
with self.assertRaises(CryptoError):
crypto.decode_index("1234567")
with self.assertRaises(CryptoError):
crypto.decode_index(crypto.encode_index(crypto.INDEX_MAX+1))