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test: MiniWallet: add P2PK support

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This commit is contained in:
Sebastian Falbesoner 2021-05-13 18:56:38 +02:00
parent 4741aec1dd
commit dc7eb64e83
1 changed files with 31 additions and 4 deletions
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31
test/functional/test_framework/wallet.py
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@ -6,6 +6,7 @@
from decimal import Decimal
from test_framework.address import ADDRESS_BCRT1_P2WSH_OP_TRUE
from test_framework.key import ECKey
from test_framework.messages import (
COIN,
COutPoint,
@ -16,8 +17,11 @@ from test_framework.messages import (
)
from test_framework.script import (
CScript,
LegacySignatureHash,
OP_CHECKSIG,
OP_TRUE,
OP_NOP,
SIGHASH_ALL,
)
from test_framework.util import (
assert_equal,
@ -27,12 +31,20 @@ from test_framework.util import (
class MiniWallet:
def __init__(self, test_node, *, raw_script=False):
def __init__(self, test_node, *, raw_script=False, use_p2pk=False):
self._test_node = test_node
self._utxos = []
if raw_script:
self._priv_key = None
self._address = None
if raw_script:
self._scriptPubKey = bytes(CScript([OP_TRUE]))
elif use_p2pk:
# use simple deterministic private key (k=1)
self._priv_key = ECKey()
self._priv_key.set((1).to_bytes(32, 'big'), True)
pub_key = self._priv_key.get_pubkey()
self._scriptPubKey = bytes(CScript([pub_key.get_bytes(), OP_CHECKSIG]))
else:
self._address = ADDRESS_BCRT1_P2WSH_OP_TRUE
self._scriptPubKey = hex_str_to_bytes(self._test_node.validateaddress(self._address)['scriptPubKey'])
@ -50,6 +62,13 @@ class MiniWallet:
if out['scriptPubKey']['hex'] == self._scriptPubKey.hex():
self._utxos.append({'txid': tx['txid'], 'vout': out['n'], 'value': out['value']})
def sign_tx(self, tx):
"""Sign tx that has been created by MiniWallet in P2PK mode"""
assert self._priv_key is not None
(sighash, err) = LegacySignatureHash(CScript(self._scriptPubKey), tx, 0, SIGHASH_ALL)
assert err is None
tx.vin[0].scriptSig = CScript([self._priv_key.sign_ecdsa(sighash) + bytes(bytearray([SIGHASH_ALL]))])
def generate(self, num_blocks):
"""Generate blocks with coinbase outputs to the internal address, and append the outputs to the internal list"""
blocks = self._test_node.generatetodescriptor(num_blocks, f'raw({self._scriptPubKey.hex()})')
@ -99,6 +118,11 @@ class MiniWallet:
tx.vout = [CTxOut(int(send_value * COIN), self._scriptPubKey)]
if not self._address:
# raw script
if self._priv_key is not None:
# P2PK, need to sign
self.sign_tx(tx)
else:
# anyone-can-spend
tx.vin[0].scriptSig = CScript([OP_NOP] * 35) # pad to identical size
else:
tx.wit.vtxinwit = [CTxInWitness()]
@ -108,6 +132,9 @@ class MiniWallet:
tx_info = from_node.testmempoolaccept([tx_hex])[0]
assert_equal(mempool_valid, tx_info['allowed'])
if mempool_valid:
# TODO: for P2PK, vsize is not constant due to varying scriptSig length,
# so only check this for anyone-can-spend outputs right now
if self._priv_key is None:
assert_equal(tx_info['vsize'], vsize)
assert_equal(tx_info['fees']['base'], fee)
return {'txid': tx_info['txid'], 'wtxid': tx_info['wtxid'], 'hex': tx_hex, 'tx': tx}