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#!/usr/bin/env python3
# Copyright (c) 2018-2020 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Useful util functions for testing the wallet"""
from collections import namedtuple
from test_framework.address import (
byte_to_base58,
key_to_p2pkh,
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
script_to_p2sh,
script_to_p2sh_p2wsh,
script_to_p2wsh,
)
from test_framework.key import ECKey
from test_framework.script import (
CScript,
OP_0,
OP_2,
OP_3,
OP_CHECKMULTISIG,
OP_CHECKSIG,
OP_DUP,
OP_EQUAL,
OP_EQUALVERIFY,
OP_HASH160,
hash160,
sha256,
)
from test_framework.util import hex_str_to_bytes
Key = namedtuple('Key', ['privkey',
'pubkey',
'p2pkh_script',
'p2pkh_addr',
'p2wpkh_script',
'p2wpkh_addr',
'p2sh_p2wpkh_script',
'p2sh_p2wpkh_redeem_script',
'p2sh_p2wpkh_addr'])
Multisig = namedtuple('Multisig', ['privkeys',
'pubkeys',
'p2sh_script',
'p2sh_addr',
'redeem_script',
'p2wsh_script',
'p2wsh_addr',
'p2sh_p2wsh_script',
'p2sh_p2wsh_addr'])
def get_key(node):
"""Generate a fresh key on node
Returns a named tuple of privkey, pubkey and all address and scripts."""
addr = node.getnewaddress()
pubkey = node.getaddressinfo(addr)['pubkey']
pkh = hash160(hex_str_to_bytes(pubkey))
return Key(privkey=node.dumpprivkey(addr),
pubkey=pubkey,
p2pkh_script=CScript([OP_DUP, OP_HASH160, pkh, OP_EQUALVERIFY, OP_CHECKSIG]).hex(),
p2pkh_addr=key_to_p2pkh(pubkey),
p2wpkh_script=CScript([OP_0, pkh]).hex(),
p2wpkh_addr=key_to_p2wpkh(pubkey),
p2sh_p2wpkh_script=CScript([OP_HASH160, hash160(CScript([OP_0, pkh])), OP_EQUAL]).hex(),
p2sh_p2wpkh_redeem_script=CScript([OP_0, pkh]).hex(),
p2sh_p2wpkh_addr=key_to_p2sh_p2wpkh(pubkey))
def get_generate_key():
"""Generate a fresh key
Returns a named tuple of privkey, pubkey and all address and scripts."""
eckey = ECKey()
eckey.generate()
privkey = bytes_to_wif(eckey.get_bytes())
pubkey = eckey.get_pubkey().get_bytes().hex()
pkh = hash160(hex_str_to_bytes(pubkey))
return Key(privkey=privkey,
pubkey=pubkey,
p2pkh_script=CScript([OP_DUP, OP_HASH160, pkh, OP_EQUALVERIFY, OP_CHECKSIG]).hex(),
p2pkh_addr=key_to_p2pkh(pubkey),
p2wpkh_script=CScript([OP_0, pkh]).hex(),
p2wpkh_addr=key_to_p2wpkh(pubkey),
p2sh_p2wpkh_script=CScript([OP_HASH160, hash160(CScript([OP_0, pkh])), OP_EQUAL]).hex(),
p2sh_p2wpkh_redeem_script=CScript([OP_0, pkh]).hex(),
p2sh_p2wpkh_addr=key_to_p2sh_p2wpkh(pubkey))
def get_multisig(node):
"""Generate a fresh 2-of-3 multisig on node
Returns a named tuple of privkeys, pubkeys and all address and scripts."""
addrs = []
pubkeys = []
for _ in range(3):
addr = node.getaddressinfo(node.getnewaddress())
addrs.append(addr['address'])
pubkeys.append(addr['pubkey'])
script_code = CScript([OP_2] + [hex_str_to_bytes(pubkey) for pubkey in pubkeys] + [OP_3, OP_CHECKMULTISIG])
witness_script = CScript([OP_0, sha256(script_code)])
return Multisig(privkeys=[node.dumpprivkey(addr) for addr in addrs],
pubkeys=pubkeys,
p2sh_script=CScript([OP_HASH160, hash160(script_code), OP_EQUAL]).hex(),
p2sh_addr=script_to_p2sh(script_code),
redeem_script=script_code.hex(),
p2wsh_script=witness_script.hex(),
p2wsh_addr=script_to_p2wsh(script_code),
p2sh_p2wsh_script=CScript([OP_HASH160, hash160(witness_script), OP_EQUAL]).hex(),
p2sh_p2wsh_addr=script_to_p2sh_p2wsh(script_code))
def test_address(node, address, **kwargs):
"""Get address info for `address` and test whether the returned values are as expected."""
addr_info = node.getaddressinfo(address)
for key, value in kwargs.items():
if value is None:
if key in addr_info.keys():
raise AssertionError("key {} unexpectedly returned in getaddressinfo.".format(key))
elif addr_info[key] != value:
raise AssertionError("key {} value {} did not match expected value {}".format(key, addr_info[key], value))
def bytes_to_wif(b, compressed=True):
if compressed:
b += b'\x01'
return byte_to_base58(b, 239)
def generate_wif_key():
# Makes a WIF privkey for imports
k = ECKey()
k.generate()
return bytes_to_wif(k.get_bytes(), k.is_compressed)
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