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trezor-firmware/core/tests/test_apps.cardano.utils.py
2020-07-27 13:11:23 +02:00

34 lines
985 B
Python

from common import *
if not utils.BITCOIN_ONLY:
from apps.cardano.helpers.utils import variable_length_encode
@unittest.skipUnless(not utils.BITCOIN_ONLY, "altcoin")
class TestCardanoUtils(unittest.TestCase):
def test_variable_length_encode(self):
test_vectors = [
(0, bytes([0x00])),
(42, bytes([0x2A])),
(127, bytes([0x7F])),
(128, bytes([0x81, 0x00])),
(129, bytes([0x81, 0x01])),
(255, bytes([0x81, 0x7F])),
(256, bytes([0x82, 0x00])),
(16383, bytes([0xFF, 0x7F])),
(16384, bytes([0x81, 0x80, 0x00])),
]
for number, expected in test_vectors:
actual = variable_length_encode(number)
self.assertEqual(actual, expected)
def test_variable_length_encode_negative_number(self):
with self.assertRaises(ValueError):
variable_length_encode(-1)
if __name__ == '__main__':
unittest.main()