def t(n: int, op: CScriptOp) -> None:
actual_op = CScriptOp.encode_op_n(n)
self.assertEqual(actual_op, op)
self.assertTrue(isinstance(actual_op, CScriptOp))
actual_int = op.decode_op_n()
self.assertEqual(actual_int, n)
self.assertTrue(isinstance(actual_int, int))
def test_tokenize_roundtrip(self):
def T(serialized_script, expected_tokens, test_roundtrip=True):
serialized_script = x(serialized_script)
script_obj = CScript(serialized_script)
actual_tokens = list(script_obj)
self.assertEqual(actual_tokens, expected_tokens)
if test_roundtrip:
recreated_script = CScript(actual_tokens)
self.assertEqual(recreated_script, serialized_script)
T('', [])
# standard pushdata
T('00', [OP_0])
T('0100', [b'\x00'])
T('4b' + 'ff'*0x4b, [b'\xff'*0x4b])
# non-optimal pushdata
T('4c00', [b''], False)
T('4c04deadbeef', [x('deadbeef')], False)
T('4d0000', [b''], False)
T('4d0400deadbeef', [x('deadbeef')], False)
T('4e00000000', [b''], False)
T('4e04000000deadbeef', [x('deadbeef')], False)
# numbers
T('00', [0x0])
T('4f', [OP_1NEGATE])
T('51', [0x1])
T('52', [0x2])
T('53', [0x3])
T('54', [0x4])
T('55', [0x5])
T('56', [0x6])
T('57', [0x7])
T('58', [0x8])
T('59', [0x9])
T('5a', [0xa])
T('5b', [0xb])
T('5c', [0xc])
T('5d', [0xd])
T('5e', [0xe])
T('5f', [0xf])
# some opcodes
T('9b', [OP_BOOLOR])
T('9a9b', [OP_BOOLAND, OP_BOOLOR])
T('ff', [OP_INVALIDOPCODE])
T('fafbfcfd', [CScriptOp(0xfa), CScriptOp(0xfb), CScriptOp(0xfc), CScriptOp(0xfd)])
# all three types
T('512103e2a0e6a91fa985ce4dda7f048fca5ec8264292aed9290594321aa53d37fdea32410478d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71a1518063243acd4dfe96b66e3f2ec8013c8e072cd09b3834a19f81f659cc345552ae',
[1,
x('03e2a0e6a91fa985ce4dda7f048fca5ec8264292aed9290594321aa53d37fdea32'),
x('0478d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71a1518063243acd4dfe96b66e3f2ec8013c8e072cd09b3834a19f81f659cc3455'),
2,
OP_CHECKMULTISIG])
def generate_multisig_redeem_list(pubkeys, m):
'''
creates m of n multisig redeem script, encoded as a list
pubkeys is a list of pubkeys
m is the number of signatures required to redeem
'''
op_m = CScriptOp.encode_op_n(m)
op_n = CScriptOp.encode_op_n(len(pubkeys))
redeem_list = pubkeys
redeem_list.insert(0, op_m)
redeem_list.append(op_n)
redeem_list.append(OP_CHECKMULTISIG)
return redeem_list
def test_encode_decode_op_n(self):
def t(n, op):
actual = CScriptOp.encode_op_n(n)
self.assertEqual(actual, op)
self.assertTrue(isinstance(actual, CScriptOp))
actual = op.decode_op_n()
self.assertEqual(actual, n)
self.assertTrue(isinstance(actual, int))
t(0, OP_0)
t(1, OP_1)
t(2, OP_2)
t(3, OP_3)
t(4, OP_4)
t(5, OP_5)
t(6, OP_6)
t(7, OP_7)
t(8, OP_8)
t(9, OP_9)
t(9, OP_9)
t(10, OP_10)
t(11, OP_11)
t(12, OP_12)
t(13, OP_13)
t(14, OP_14)
t(15, OP_15)
t(16, OP_16)
with self.assertRaises(ValueError):
OP_CHECKSIG.decode_op_n()
with self.assertRaises(ValueError):
CScriptOp(1).decode_op_n()
def t(n, op):
actual = CScriptOp.encode_op_n(n)
self.assertEqual(actual, op)
self.assertTrue(isinstance(actual, CScriptOp))
actual = op.decode_op_n()
self.assertEqual(actual, n)
self.assertTrue(isinstance(actual, int))
class AsimovOpCode:
"""new opcode added in asimov"""
OP_DATA_21 = CScriptOp(21)
OP_TEMPLATE = CScriptOp(192)
OP_CREATE = CScriptOp(193)
OP_CALL = CScriptOp(194)
OP_SPEND = CScriptOp(195)
OP_IFLAG_EQUAL = CScriptOp(196)
OP_IFLAG_EQUALVERIFY = CScriptOp(197)
OP_VOTE = CScriptOp(198)
def test_is_singleton(self):
self.assertTrue(OP_0 is CScriptOp(0x00))
self.assertTrue(OP_1 is CScriptOp(0x51))
self.assertTrue(OP_16 is CScriptOp(0x60))
self.assertTrue(OP_CHECKSIG is CScriptOp(0xac))
for i in range(0x0, 0x100):
self.assertTrue(CScriptOp(i) is CScriptOp(i))
def T(data, expected):
data = x(data)
expected = x(expected)
serialized_data = CScriptOp.encode_op_pushdata(data)
self.assertEqual(serialized_data, expected)
def T(data_hex: str, expected_hex: str) -> None:
data = x(data_hex)
expected = x(expected_hex)
serialized_data = CScriptOp.encode_op_pushdata(data)
self.assertEqual(serialized_data, expected)
from bitcointx.core.key import CKey, CKeyBase
from bitcointx.core.script import (
ScriptCoinClassDispatcher, ScriptCoinClass, CScript, CScriptOp,
SIGVERSION_BASE, SIGVERSION_WITNESS_V0, CScriptInvalidError,
RawBitcoinSignatureHash, OP_RETURN, SIGHASH_NONE, SIGHASH_SINGLE,
SIGHASH_ANYONECANPAY, SIGHASH_Type, SIGVERSION_Type)
from bitcointx.core.serialize import BytesSerializer
import elementstx.core
# We do not register these extra opcodes in script.OPCODE_NAMES
# and script.OPCODE_BY_NAME. If we do so, we will pollute these
# bitcoin-specific tables with Elements opcodes. Proper way would be
# to have CBitcoinScriptOp and CElementsScriptOp, but
# this is too heavy for this small issue. These opcodes are useable as-is,
# the only proble is that they will be shown as UNKNOWN for repr(script).
OP_DETERMINISTICRANDOM = CScriptOp(0xc1)
OP_CHECKSIGFROMSTACK = CScriptOp(0xc1)
OP_CHECKSIGFROMSTACKVERIFY = CScriptOp(0xc2)
class ScriptElementsClassDispatcher(ScriptCoinClassDispatcher):
...
class ScriptElementsClass(ScriptCoinClass,
metaclass=ScriptElementsClassDispatcher):
...
def RawElementsSignatureHash(
script: CScript,