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trezor-firmware/core/tests/test_apps.cardano.utils.py

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from common import * # isort:skip
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if not utils.BITCOIN_ONLY:
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from apps.cardano.helpers.utils import (
format_asset_fingerprint,
variable_length_encode,
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)
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@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])),
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(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)
def test_format_asset_fingerprint(self):
# source: https://github.com/cardano-foundation/CIPs/pull/64
test_vectors = [
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(
("7eae28af2208be856f7a119668ae52a49b73725e326dc16579dcc373", ""),
"asset1rjklcrnsdzqp65wjgrg55sy9723kw09mlgvlc3",
),
(
(
"7eae28af2208be856f7a119668ae52a49b73725e326dc16579dcc373",
"504154415445",
),
"asset13n25uv0yaf5kus35fm2k86cqy60z58d9xmde92",
),
(
(
"1e349c9bdea19fd6c147626a5260bc44b71635f398b67c59881df209",
"7eae28af2208be856f7a119668ae52a49b73725e326dc16579dcc373",
),
"asset1aqrdypg669jgazruv5ah07nuyqe0wxjhe2el6f",
),
]
for params, expected in test_vectors:
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actual = format_asset_fingerprint(
policy_id=unhexlify(params[0]), asset_name_bytes=unhexlify(params[1])
)
self.assertEqual(actual, expected)
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if __name__ == "__main__":
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unittest.main()