elements/test/functional/feature_pegin_subsidy.py
2026-06-25 17:01:10 +02:00

936 lines
44 KiB
Python
Executable file

#!/usr/bin/env python3
# can be run with parent bitcoind node
# tested with bitcoind v28.2 and v29.0
# test/functional/feature_pegin_subsidy.py --parent_bitcoin --parent_binpath="/path/to/bitcoind" --nosandbox
from decimal import Decimal
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_raises_rpc_error,
find_vout_for_address,
get_auth_cookie,
get_datadir_path,
rpc_port,
p2p_port,
assert_equal,
)
from test_framework import util
PEGIN_MINIMUM_HEIGHT = 102
PEGIN_SUBSIDY_HEIGHT = 150
def get_new_unconfidential_address(node, addr_type="bech32"):
addr = node.getnewaddress("", addr_type)
val_addr = node.getaddressinfo(addr)
if "unconfidential" in val_addr:
return val_addr["unconfidential"]
return val_addr["address"]
class PeginSubsidyTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 3
self.disable_syscall_sandbox = True
def add_options(self, parser):
self.add_wallet_options(parser)
parser.add_argument(
"--parent_binpath",
dest="parent_binpath",
default="",
help="Use a different binary for launching nodes",
)
parser.add_argument(
"--parent_bitcoin",
dest="parent_bitcoin",
default=False,
action="store_true",
help="Parent nodes are Bitcoin",
)
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def setup_network(self, split=False):
if self.options.parent_bitcoin and self.options.parent_binpath == "":
raise Exception("Can't run with --parent_bitcoin without specifying --parent_binpath")
self.nodes = []
# Setup parent nodes
parent_chain = "elementsregtest" if not self.options.parent_bitcoin else "regtest"
parent_binary = [self.options.parent_binpath] if self.options.parent_binpath != "" else None
extra_args = [
"-port=" + str(p2p_port(0)),
"-rpcport=" + str(rpc_port(0)),
# to test minimum parent tx fee
"-minrelaytxfee=0.00000100",
"-blockmintxfee=0.00000100",
"-mintxfee=0.00000100",
]
if self.options.parent_bitcoin:
# bitcoind can't read elements.conf config files
extra_args.extend(
[
"-regtest=1",
"-printtoconsole=0",
"-server=1",
"-discover=0",
"-keypool=1",
"-listenonion=0",
"-addresstype=legacy", # To make sure bitcoind gives back p2pkh no matter version
"-fallbackfee=0.0002",
"-deprecatedrpc=create_bdb",
]
)
self.expected_stderr = (
f"Error: Unable to bind to 127.0.0.1:{p2p_port(1)} on this computer. Elements Core is probably already running."
)
else:
extra_args.extend(
[
"-validatepegin=0",
"-initialfreecoins=0",
"-anyonecanspendaremine=1",
"-signblockscript=51", # OP_TRUE
"-dustrelayfee=0.00003000", # use the Bitcoin default dust relay fee rate for the parent nodes
]
)
self.expected_stderr = ""
self.add_nodes(1, [extra_args], chain=[parent_chain], binary=parent_binary)
self.start_node(0)
self.log.info(f"Node 0 started (mainchain: {'bitcoind' if self.options.parent_bitcoin else 'elementsd'})")
# set hard-coded mining keys for non-Elements chains
if self.options.parent_bitcoin:
self.nodes[0].set_deterministic_priv_key(
"2Mysp7FKKe52eoC2JmU46irt1dt58TpCvhQ",
"cTNbtVJmhx75RXomhYWSZAafuNNNKPd1cr2ZiUcAeukLNGrHWjvJ",
)
self.parentgenesisblockhash = self.nodes[0].getblockhash(0)
if not self.options.parent_bitcoin:
parent_pegged_asset = self.nodes[0].getsidechaininfo()["pegged_asset"]
# Setup sidechain nodes
# use the current liquidv1 fedpegscript for testing purposes
self.fedpegscript = "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"
for n in range(2):
validatepegin = "1" if n == 0 else "0"
extra_args = [
"-printtoconsole=0",
"-port=" + str(p2p_port(1 + n)),
"-rpcport=" + str(rpc_port(1 + n)),
"-validatepegin=%s" % validatepegin,
"-fallbackfee=0.00001000",
"-fedpegscript=%s" % self.fedpegscript,
"-minrelaytxfee=0",
"-blockmintxfee=0",
"-initialfreecoins=0",
"-peginconfirmationdepth=10",
"-mainchainrpchost=127.0.0.1",
"-mainchainrpcport=%s" % rpc_port(0),
"-parentgenesisblockhash=%s" % self.parentgenesisblockhash,
"-parentpubkeyprefix=111",
"-parentscriptprefix=196",
"-parent_bech32_hrp=bcrt",
# Turn of consistency checks that can cause assert when parent node stops
# and a peg-in transaction fails this belt-and-suspenders check.
# NOTE: This can cause spurious problems in regtest, and should be dealt with in a better way.
"-checkmempool=0",
"-peginsubsidyheight=%s" % PEGIN_SUBSIDY_HEIGHT,
"-peginsubsidythreshold=2.0",
"-peginminheight=%s" % PEGIN_MINIMUM_HEIGHT,
"-peginminamount=1.0",
]
if not self.options.parent_bitcoin:
extra_args.extend(
[
"-parentpubkeyprefix=235",
"-parentscriptprefix=75",
"-parent_bech32_hrp=ert",
"-con_parent_chain_signblockscript=51",
"-con_parent_pegged_asset=%s" % parent_pegged_asset,
]
)
# Use rpcuser auth only for first parent.
if n == 0:
# Extract username and password from cookie file and use directly.
datadir = get_datadir_path(self.options.tmpdir, n)
rpc_u, rpc_p = get_auth_cookie(datadir, parent_chain)
extra_args.extend(
[
"-mainchainrpcuser=%s" % rpc_u,
"-mainchainrpcpassword=%s" % rpc_p,
]
)
else:
# Need to specify where to find parent cookie file
datadir = get_datadir_path(self.options.tmpdir, n)
extra_args.append("-mainchainrpccookiefile=" + str(datadir) + "/" + parent_chain + "/.cookie")
self.add_nodes(1, [extra_args], chain=["elementsregtest"])
self.start_node(1 + n)
self.log.info(f"Node {1 + n} started (sidechain: elementsd)")
# We only connect the same-chain nodes, so sync_all works correctly
self.connect_nodes(1, 2)
self.node_groups = [
[self.nodes[0]],
[self.nodes[1], self.nodes[2]],
]
for node_group in self.node_groups:
self.sync_all(node_group)
self.log.info("Setting up network done")
def run_test(self):
self.import_deterministic_coinbase_privkeys() # Create wallets for all nodes
parent = self.nodes[0]
sidechain = self.nodes[1]
sidechain2 = self.nodes[2]
assert_equal(sidechain.getsidechaininfo()["pegin_confirmation_depth"], 10) # 10+2 confirms required to get into mempool and confirm
parent.importprivkey(privkey=parent.get_deterministic_priv_key().key, label="mining")
sidechain.importprivkey(privkey=sidechain.get_deterministic_priv_key().key, label="mining")
util.node_fastmerkle = sidechain
self.generate(parent, 101, sync_fun=self.no_op)
self.generate(sidechain, 101, sync_fun=self.no_op)
def sync_sidechain():
return self.sync_all([sidechain, sidechain2])
DEFAULT_FEERATE = 1.0
def parent_pegin(parent, node, amount=1.0, feerate=DEFAULT_FEERATE):
address = node.getpeginaddress()
mainchain_address, claim_script = (
address["mainchain_address"],
address["claim_script"],
)
txid = parent.sendtoaddress(address=mainchain_address, amount=amount, fee_rate=feerate)
vout = find_vout_for_address(parent, txid, mainchain_address)
self.generate(parent, 12, sync_fun=self.no_op)
txoutproof = parent.gettxoutproof([txid])
bitcoin_txhex = parent.gettransaction(txid)["hex"]
return (
txid,
vout,
txoutproof,
bitcoin_txhex,
claim_script,
)
self.log.info("check new fields for getpeginaddress and getsidechaininfo")
result = sidechain.getpeginaddress()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], False)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], False)
result = sidechain.getsidechaininfo()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], False)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], False)
self.log.info("check min peg-in amount before minimum peg-in height")
assert_equal(sidechain.getblockchaininfo()["blocks"], PEGIN_MINIMUM_HEIGHT - 1)
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.5)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(pegin_tx["confirmations"], 1)
assert_equal(sidechain.getblockchaininfo()["blocks"], PEGIN_MINIMUM_HEIGHT)
result = sidechain.getpeginaddress()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], True)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], False)
result = sidechain.getsidechaininfo()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], True)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], False)
self.log.info("check min peg-in amount after minimum peg-in height")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.5)
assert_raises_rpc_error(
-4,
"Peg-in amount (0.50) is lower than the minimum peg-in amount for this chain (1.00).",
sidechain.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
# check manually constructed
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
]
fee = Decimal("0.00000363")
outputs = [
{sidechain.getnewaddress(): Decimal("0.5") - fee},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-value-too-low")
self.log.info("createrawpegin before enforcement, with validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1.0, feerate=2.0)
pegintx = sidechain.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain.sendrawtransaction(signed["hex"])
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin before enforcement, with validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=2.0, feerate=2.0)
pegintx = sidechain.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain.sendrawtransaction(signed["hex"])
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin before enforcement, without validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.0, feerate=2.0)
pegintx = sidechain2.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain2.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain2.sendrawtransaction(signed["hex"])
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin before enforcement, without validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=2.0, feerate=2.0)
pegintx = sidechain2.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain2.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain2.sendrawtransaction(signed["hex"])
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin with null argument")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.0, feerate=2.0)
pegintx = sidechain2.createrawpegin(bitcoin_txhex, txoutproof, None, 2.0)
signed = sidechain2.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain2.sendrawtransaction(signed["hex"])
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin before enforcement, with validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1.0, feerate=2.0)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin before enforcement, with validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=2.0, feerate=2.0)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin before enforcement, without validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.0, feerate=2.0)
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin before enforcement, without validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=2.0, feerate=2.0)
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
num = PEGIN_SUBSIDY_HEIGHT - sidechain.getblockchaininfo()["blocks"]
assert num > 0
self.generate(sidechain, num, sync_fun=sync_sidechain)
self.log.info(f"===== peg-in subsidy enforcement at height {PEGIN_SUBSIDY_HEIGHT} =====")
assert_equal(sidechain.getblockchaininfo()["blocks"], PEGIN_SUBSIDY_HEIGHT)
self.log.info("check new fields for getpeginaddress and getsidechaininfo")
result = sidechain.getpeginaddress()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], True)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], True)
result = sidechain.getsidechaininfo()
assert_equal(result["pegin_min_amount"], "1.00")
assert_equal(result["pegin_min_height"], PEGIN_MINIMUM_HEIGHT)
assert_equal(result["pegin_min_active"], True)
assert_equal(result["pegin_subsidy_threshold"], "2.00")
assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
assert_equal(result["pegin_subsidy_active"], True)
# blinded pegins
self.log.info("blinded pegin below threshold, with validatepegin, subsidy too low")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1.0, feerate=1.0)
addr = sidechain.getnewaddress(address_type="blech32")
utxo = sidechain.listunspent()[0]
changeaddr = sidechain.getrawchangeaddress(address_type="blech32")
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
{
"txid": utxo["txid"],
"vout": utxo["vout"],
},
]
fee = Decimal("0.00000363")
subsidy = Decimal("0.00000395")
outputs = [
{addr: Decimal("1.0") - fee - subsidy},
{changeaddr: utxo["amount"]},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
blinded = sidechain.blindrawtransaction(hexstring=raw, ignoreblindfail=False)
signed = sidechain.signrawtransactionwithwallet(blinded)
assert_equal(signed["complete"], True)
# node 2 can't validatepegin but checks the minimum subsidy
accept = sidechain2.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
# node 1 will reject
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
assert_raises_rpc_error(
-26,
"pegin-subsidy-too-low",
sidechain.sendrawtransaction,
signed["hex"],
maxburnamount="1.0",
)
self.log.info("blinded peg-in above threshold, with validatepegin")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=2.0, feerate=1.0)
addr = sidechain.getnewaddress(address_type="blech32")
utxo = sidechain.listunspent()[0]
changeaddr = sidechain.getrawchangeaddress(address_type="blech32")
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
{
"txid": utxo["txid"],
"vout": utxo["vout"],
},
]
fee = Decimal("0.00000363")
outputs = [
{addr: Decimal("2.0") - fee},
{changeaddr: utxo["amount"]},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
blinded = sidechain.blindrawtransaction(hexstring=raw, ignoreblindfail=False)
signed = sidechain.signrawtransactionwithwallet(blinded)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], True)
# =======
self.log.info("createrawpegin after enforcement, with validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain)
pegintx = sidechain.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain.signrawtransactionwithwallet(pegintx["hex"])
pegin_txid = sidechain.sendrawtransaction(signed["hex"], maxburnamount="1.0")
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
# WSH input 41 bytes * 4 = 164 weight
# Witness (11 * 72 bytes signatures + 626 bytes script size) = 1418 weight
# (164 + 1418 + 3) / 4 = 396 vbytes
assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000396"))
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin after enforcement, with validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=3.0, feerate=2.0)
pegintx = sidechain.createrawpegin(bitcoin_txhex, txoutproof, claim_script)
signed = sidechain.signrawtransactionwithwallet(pegintx["hex"])
pegin_txid = sidechain.sendrawtransaction(signed["hex"])
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin after enforcement, without validatepegin, below threshold")
feerate = 2.0
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, 1.0, feerate)
assert_raises_rpc_error(
-8,
"Bitcoin transaction fee rate must be supplied, because validatepegin is off and this peg-in requires a burn subsidy.",
sidechain2.createrawpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
pegintx = sidechain2.createrawpegin(bitcoin_txhex, txoutproof, claim_script, feerate)
signed = sidechain2.signrawtransactionwithwallet(pegintx["hex"])
pegin_txid = sidechain.sendrawtransaction(signed["hex"], maxburnamount="1.0")
self.generate(sidechain, 1, sync_fun=sync_sidechain)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000792"))
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("createrawpegin after enforcement, without validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=2.0, feerate=2.0)
pegintx = sidechain2.createrawpegin(bitcoin_txhex, txoutproof, claim_script, feerate)
signed = sidechain2.signrawtransactionwithwallet(pegintx["hex"])
assert_equal(signed["complete"], True)
pegin_txid = sidechain2.sendrawtransaction(signed["hex"])
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin after enforcement, with validatepegin, below threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1.0, feerate=2.0)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000792"))
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin after enforcement, with validatepegin, above threshold")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=2.0, feerate=2.0)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin after enforcement, without validatepegin, below threshold")
feerate = 2.0
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, 1.0, feerate)
assert_raises_rpc_error(
-8,
"Bitcoin transaction fee rate must be supplied, because validatepegin is off and this peg-in requires a burn subsidy.",
sidechain2.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script, feerate)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000792"))
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin after enforcement, without validatepegin, above threshold")
feerate = 2.0
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, 2.0, feerate)
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script, feerate)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 2)
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("claimpegin after enforcement, without validatepegin, below threshold, with incorrect subsidy output")
# should be accepted by sidechain2 but rejected by the node that is validating pegins
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.0, feerate=2.0)
assert_raises_rpc_error(
-8,
"Bitcoin transaction fee rate must be supplied, because validatepegin is off and this peg-in requires a burn subsidy.",
sidechain2.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
low_feerate = 1.0
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script, low_feerate)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
accept = sidechain.testmempoolaccept([pegin_tx["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.99999999, feerate=2.0)
assert_raises_rpc_error(
-8,
"Bitcoin transaction fee rate must be supplied, because validatepegin is off and this peg-in requires a burn subsidy.",
sidechain2.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
low_feerate = 1.0
pegin_txid = sidechain2.claimpegin(bitcoin_txhex, txoutproof, claim_script, low_feerate)
pegin_tx = sidechain2.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
accept = sidechain.testmempoolaccept([pegin_tx["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
# sidechain2 should accept a 1 sat/vb subsidy for a higher feerate parent, but validating node should reject
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=1.0, feerate=2.0)
# first try with less than 1 sat/vb subsidy
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
]
fee = Decimal("0.00000363")
addr = get_new_unconfidential_address(sidechain)
# subsidy less than 1 sat/vb
subsidy = Decimal("0.00000395")
outputs = [
{addr: Decimal("1.0") - fee - subsidy},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain2.createrawtransaction(inputs, outputs)
signed = sidechain2.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain2.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
# subsidy for 1 sat/vb accepted by sidechain2, but rejected by validating node
subsidy = Decimal("0.00000396")
outputs = [
{addr: Decimal("1.0") - fee - subsidy},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain2.createrawtransaction(inputs, outputs)
signed = sidechain2.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain2.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
# sub 1 sat/vb parent feerate should use 1 sat/vb for subsidy calculation
self.log.info("claimpegin after enforcement, with validatepegin, below threshold, sub 1 sat/vb parent")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1, feerate=0.1)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000396"))
# check manually constructed peg-in from a sub 1 sat/vb parent
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1, feerate=0.1)
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
]
fee = Decimal("0.00000363")
addr = get_new_unconfidential_address(sidechain)
# subsidy too low
subsidy = Decimal("0.00000395")
outputs = [
{addr: Decimal("1.0") - fee - subsidy},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
# subsidy accepted
subsidy = Decimal("0.00000396")
outputs = [
{addr: Decimal("1.0") - fee - subsidy},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], True)
sidechain.sendrawtransaction(signed["hex"], maxburnamount="1.0")
self.generate(sidechain, 1, sync_fun=sync_sidechain)
# =================================
self.log.info("construct a multi-pegin tx, below threshold")
feerate = 2.0
txid1, vout1, txoutproof1, bitcoin_txhex1, claim_script1 = parent_pegin(parent, sidechain, 0.5, feerate)
txid2, vout2, txoutproof2, bitcoin_txhex2, claim_script2 = parent_pegin(parent, sidechain, 1.0, feerate)
addr1 = get_new_unconfidential_address(sidechain)
addr2 = get_new_unconfidential_address(sidechain)
inputs = [
{
"txid": txid1,
"vout": vout1,
"pegin_bitcoin_tx": bitcoin_txhex1,
"pegin_txout_proof": txoutproof1,
"pegin_claim_script": claim_script1,
},
{
"txid": txid2,
"vout": vout2,
"pegin_bitcoin_tx": bitcoin_txhex2,
"pegin_txout_proof": txoutproof2,
"pegin_claim_script": claim_script2,
},
]
fee = Decimal("0.00000363")
subsidy = Decimal("0.00001583")
outputs = [
{addr1: Decimal("0.5") - fee - subsidy},
{addr2: 1.0},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-subsidy-too-low")
subsidy = Decimal("0.00001584")
outputs = [
{addr1: Decimal("0.5") - fee - subsidy},
{addr2: 1.0},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], True)
sidechain.sendrawtransaction(signed["hex"], maxburnamount="1.0")
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
self.log.info("construct a multi-pegin tx, above threshold")
txid1, vout1, txoutproof1, bitcoin_txhex1, claim_script1 = parent_pegin(parent, sidechain, amount=0.5, feerate=1.0)
txid2, vout2, txoutproof2, bitcoin_txhex2, claim_script2 = parent_pegin(parent, sidechain, amount=1.5, feerate=2.0)
addr1 = get_new_unconfidential_address(sidechain)
addr2 = get_new_unconfidential_address(sidechain)
inputs = [
{
"txid": txid1,
"vout": vout1,
"pegin_bitcoin_tx": bitcoin_txhex1,
"pegin_txout_proof": txoutproof1,
"pegin_claim_script": claim_script1,
},
{
"txid": txid2,
"vout": vout2,
"pegin_bitcoin_tx": bitcoin_txhex2,
"pegin_txout_proof": txoutproof2,
"pegin_claim_script": claim_script2,
},
]
fee = Decimal("0.00000363")
outputs = [
{addr1: 0.5},
{addr2: Decimal("1.5") - fee},
{"fee": fee},
]
raw = sidechain.createrawtransaction(inputs, outputs)
signed = sidechain.signrawtransactionwithwallet(raw)
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], True)
sidechain.sendrawtransaction(signed["hex"])
self.generate(sidechain2, 1, sync_fun=sync_sidechain)
# minimum peg-in amount is 1.0
self.log.info("claimpegin below minimum peg-in amount")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.99999999)
assert_raises_rpc_error(
-4,
"Peg-in amount (0.99999999) is lower than the minimum peg-in amount for this chain (1.00).",
sidechain2.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
# check minimum peg-in amount in mempool validation by constructing manually
self.log.info("rawtransaction below minimum peg-in amount")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=0.99999999)
addr = sidechain2.getnewaddress()
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
]
fee = Decimal("0.00000363")
subsidy = Decimal("0.00000396")
outputs = [
{addr: Decimal("0.99999999") - fee - subsidy},
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain2.createrawtransaction(inputs, outputs)
signed = sidechain2.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain2.testmempoolaccept([signed["hex"]])
# node2 can check the min peg-in amount as the peg-in amount is in the witness
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-value-too-low")
# node1 rejects below the min peg-in amount with validatepegin
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "pegin-value-too-low")
assert_raises_rpc_error(
-26,
"pegin-value-too-low",
sidechain.sendrawtransaction,
signed["hex"],
maxburnamount="1.0",
)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
# test various feerates
self.log.info("claimpegin with validatepegin, below threshold, at various feerates")
for feerate in [1.0, 1.5, 2.0, 2.3, 3.9, 4.6, 5.2, 6.1, 10.01, 20.7, 22.22, 24.18]:
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, 1.0, feerate)
pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
pegin_tx = sidechain.gettransaction(pegin_txid, True, True)
assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
self.generate(sidechain, 1, sync_fun=sync_sidechain)
# dust error
# restart node1 with no min peg-in amount
self.stop_node(1, expected_stderr=self.expected_stderr) # when running with bitcoind as parent node this stderr can occur
self.start_node(1, extra_args=sidechain.extra_args + ["-peginminamount=0"])
self.log.info("claimpegin dust error")
amount = Decimal("0.00000546") if self.options.parent_bitcoin else Decimal("0.00000645")
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount)
assert_raises_rpc_error(
-4,
"Peg-in transaction would create dust output.",
sidechain.claimpegin,
bitcoin_txhex,
txoutproof,
claim_script,
)
# check dust mempool validation by constructing manually
txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=0.00001570)
addr = sidechain2.getnewaddress()
inputs = [
{
"txid": txid,
"vout": vout,
"pegin_bitcoin_tx": bitcoin_txhex,
"pegin_txout_proof": txoutproof,
"pegin_claim_script": claim_script,
},
]
fee = Decimal("0.00000363")
subsidy = Decimal("0.00001194")
outputs = [
{addr: Decimal("0.00001570") - fee - subsidy}, # 14 sats is dust at 0.1 sat/vb dustrelayfee
{"burn": subsidy},
{"fee": fee},
]
raw = sidechain2.createrawtransaction(inputs, outputs)
signed = sidechain2.signrawtransactionwithwallet(raw)
assert_equal(signed["complete"], True)
accept = sidechain2.testmempoolaccept([signed["hex"]])
# mempool validation already checks for dust outputs
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "dust")
accept = sidechain.testmempoolaccept([signed["hex"]])
assert_equal(accept[0]["allowed"], False)
assert_equal(accept[0]["reject-reason"], "dust")
assert_raises_rpc_error(
-26,
"dust",
sidechain.sendrawtransaction,
signed["hex"],
maxburnamount="1.0",
)
# Manually stop sidechains first, then the parent chain.
self.stop_node(2)
self.stop_node(1, expected_stderr=self.expected_stderr) # when running with bitcoind as parent node this stderr can occur
self.stop_node(0)
if __name__ == "__main__":
PeginSubsidyTest(__file__).main()