def test_invalid_derivation(self):
xpub = CBitcoinExtPubKey(
'xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB'
)
with self.assertRaises(ValueError):
xpub.derive(1 << 31)
final_xpub_str = 'xpubEPPCAoZp7t6CN5GGoyYTEr91FCaPpQonRouneRKmRCzgfcWNHnyHMuQPCDn8wLv1vYyPrFpSK26VeA9dDXTKMCLm7FaSY9aVTWw5mTZLC7F'
for _ in range(255):
xpub = xpub.derive(0)
self.assertEqual(str(CBitcoinExtPubKey.from_bytes(xpub)), final_xpub_str)
with self.assertRaises(ValueError):
xpub.derive(0) # depth > 255
def test(self):
xpub_str = 'xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB'
xpub = CBitcoinExtPubKey(xpub_str)
xpub2 = CExtPubKey(xpub)
self.assertEqual(xpub_str, str(CBitcoinExtPubKey.from_bytes(xpub2)))
self.assertEqual(xpub, CBitcoinExtPubKey.from_bytes(xpub2))
self.assertEqual(xpub.derive(0), xpub2.derive(0))
def T(base_xpub, expected_child, path):
xpub = CBitcoinExtPubKey(base_xpub)
for child_num in path:
xpub = xpub.derive(child_num)
self.assertEqual(str(CBitcoinExtPubKey.from_bytes(xpub)),
expected_child)
xpub = CBitcoinExtPubKey(base_xpub).derive_path(
str(BIP32Path(path)))
self.assertEqual(str(CBitcoinExtPubKey.from_bytes(xpub)),
expected_child)
def T(base_xpub: str, expected_child: str, path: List[int]) -> None:
xpub = CBitcoinExtPubKey(base_xpub)
self.assertEqual(xpub.parent_fp, b'\x00\x00\x00\x00')
for child_num in path:
parent_fp = xpub.fingerprint
xpub = xpub.derive(child_num)
self.assertEqual(xpub.parent_fp, parent_fp)
self.assertEqual(str(CBitcoinExtPubKey.from_bytes(xpub)),
expected_child)
xpub = CBitcoinExtPubKey(base_xpub).derive_path(
str(BIP32Path(path)))
self.assertEqual(str(CBitcoinExtPubKey.from_bytes(xpub)),
expected_child)
def T(base_xpub, expected_child, path):
xpub = CBitcoinExtPubKey(base_xpub)
for child_num in path:
xpub = xpub.derive(child_num)
self.assertTrue(str(CBitcoinExtPubKey.from_bytes(xpub)) == expected_child)