[tests] move witness util functions to blocktools.py

This avoids importing from segwit.py to bumpfee.py
This commit is contained in:
John Newbery 2017-09-14 11:41:30 -04:00
parent 1e10854038
commit 82b2712a66
3 changed files with 76 additions and 49 deletions

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@ -14,7 +14,7 @@ added in the future, they should try to follow the same convention and not
make assumptions about execution order.
"""
from segwit import send_to_witness
from test_framework.blocktools import send_to_witness
from test_framework.test_framework import BitcoinTestFramework
from test_framework import blocktools
from test_framework.mininode import CTransaction

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@ -4,10 +4,18 @@
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test the SegWit changeover logic."""
from test_framework.address import (
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
program_to_witness,
script_to_p2sh_p2wsh,
script_to_p2wsh,
)
from test_framework.blocktools import witness_script, send_to_witness
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
from test_framework.mininode import sha256, CTransaction, CTxIn, COutPoint, CTxOut, COIN, ToHex, FromHex
from test_framework.address import script_to_p2sh, key_to_p2pkh, key_to_p2sh_p2wpkh, key_to_p2wpkh, script_to_p2sh_p2wsh, script_to_p2wsh, program_to_witness
from test_framework.address import script_to_p2sh, key_to_p2pkh
from test_framework.script import CScript, OP_HASH160, OP_CHECKSIG, OP_0, hash160, OP_EQUAL, OP_DUP, OP_EQUALVERIFY, OP_1, OP_2, OP_CHECKMULTISIG, OP_TRUE
from io import BytesIO
@ -16,52 +24,6 @@ NODE_2 = 2
WIT_V0 = 0
WIT_V1 = 1
# Create a scriptPubKey corresponding to either a P2WPKH output for the
# given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
# pubkey. Returns the hex encoding of the scriptPubKey.
def witness_script(use_p2wsh, pubkey):
if (use_p2wsh == False):
# P2WPKH instead
pubkeyhash = hash160(hex_str_to_bytes(pubkey))
pkscript = CScript([OP_0, pubkeyhash])
else:
# 1-of-1 multisig
witness_program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
scripthash = sha256(witness_program)
pkscript = CScript([OP_0, scripthash])
return bytes_to_hex_str(pkscript)
# Return a transaction (in hex) that spends the given utxo to a segwit output,
# optionally wrapping the segwit output using P2SH.
def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
if use_p2wsh:
program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
addr = script_to_p2sh_p2wsh(program) if encode_p2sh else script_to_p2wsh(program)
else:
addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
if not encode_p2sh:
assert_equal(node.validateaddress(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
return node.createrawtransaction([utxo], {addr: amount})
# Create a transaction spending a given utxo to a segwit output corresponding
# to the given pubkey: use_p2wsh determines whether to use P2WPKH or P2WSH;
# encode_p2sh determines whether to wrap in P2SH.
# sign=True will have the given node sign the transaction.
# insert_redeem_script will be added to the scriptSig, if given.
def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
tx_to_witness = create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount)
if (sign):
signed = node.signrawtransaction(tx_to_witness)
assert("errors" not in signed or len(["errors"]) == 0)
return node.sendrawtransaction(signed["hex"])
else:
if (insert_redeem_script):
tx = FromHex(CTransaction(), tx_to_witness)
tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)])
tx_to_witness = ToHex(tx)
return node.sendrawtransaction(tx_to_witness)
def getutxo(txid):
utxo = {}
utxo["vout"] = 0

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@ -4,8 +4,27 @@
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Utilities for manipulating blocks and transactions."""
from .address import (
key_to_p2sh_p2wpkh,
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
script_to_p2sh_p2wsh,
script_to_p2wsh,
)
from .mininode import *
from .script import CScript, OP_TRUE, OP_CHECKSIG, OP_RETURN
from .script import (
CScript,
OP_0,
OP_1,
OP_CHECKMULTISIG,
OP_CHECKSIG,
OP_EQUAL,
OP_HASH160,
OP_RETURN,
OP_TRUE,
hash160,
)
from .util import assert_equal
# Create a block (with regtest difficulty)
def create_block(hashprev, coinbase, nTime=None):
@ -108,3 +127,49 @@ def get_legacy_sigopcount_tx(tx, fAccurate=True):
# scriptSig might be of type bytes, so convert to CScript for the moment
count += CScript(j.scriptSig).GetSigOpCount(fAccurate)
return count
# Create a scriptPubKey corresponding to either a P2WPKH output for the
# given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
# pubkey. Returns the hex encoding of the scriptPubKey.
def witness_script(use_p2wsh, pubkey):
if (use_p2wsh == False):
# P2WPKH instead
pubkeyhash = hash160(hex_str_to_bytes(pubkey))
pkscript = CScript([OP_0, pubkeyhash])
else:
# 1-of-1 multisig
witness_program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
scripthash = sha256(witness_program)
pkscript = CScript([OP_0, scripthash])
return bytes_to_hex_str(pkscript)
# Return a transaction (in hex) that spends the given utxo to a segwit output,
# optionally wrapping the segwit output using P2SH.
def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
if use_p2wsh:
program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
addr = script_to_p2sh_p2wsh(program) if encode_p2sh else script_to_p2wsh(program)
else:
addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
if not encode_p2sh:
assert_equal(node.validateaddress(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
return node.createrawtransaction([utxo], {addr: amount})
# Create a transaction spending a given utxo to a segwit output corresponding
# to the given pubkey: use_p2wsh determines whether to use P2WPKH or P2WSH;
# encode_p2sh determines whether to wrap in P2SH.
# sign=True will have the given node sign the transaction.
# insert_redeem_script will be added to the scriptSig, if given.
def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
tx_to_witness = create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount)
if (sign):
signed = node.signrawtransaction(tx_to_witness)
assert("errors" not in signed or len(["errors"]) == 0)
return node.sendrawtransaction(signed["hex"])
else:
if (insert_redeem_script):
tx = FromHex(CTransaction(), tx_to_witness)
tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)])
tx_to_witness = ToHex(tx)
return node.sendrawtransaction(tx_to_witness)