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dash/test/functional/feature_asset_locks.py

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#!/usr/bin/env python3
# Copyright (c) 2022-2024 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
import copy
import struct
from decimal import Decimal
from io import BytesIO
from test_framework.blocktools import (
create_block,
create_coinbase,
)
from test_framework.authproxy import JSONRPCException
from test_framework.key import ECKey
from test_framework.messages import (
CAssetLockTx,
CAssetUnlockTx,
COIN,
COutPoint,
CTransaction,
CTxIn,
CTxOut,
tx_from_hex,
hash256,
ser_string,
)
from test_framework.script import (
CScript,
OP_CHECKSIG,
OP_RETURN,
)
from test_framework.script_util import key_to_p2pkh_script
from test_framework.test_framework import DashTestFramework
from test_framework.util import (
assert_equal,
assert_greater_than,
assert_greater_than_or_equal,
)
from test_framework.wallet_util import bytes_to_wif
llmq_type_test = 106 # LLMQType::LLMQ_TEST_PLATFORM
tiny_amount = int(Decimal("0.0007") * COIN)
blocks_in_one_day = 576
class AssetLocksTest(DashTestFramework):
def set_test_params(self):
self.set_dash_test_params(4, 2, [["-whitelist=127.0.0.1", "-llmqtestinstantsenddip0024=llmq_test_instantsend"]] * 4, evo_count=2)
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def create_assetlock(self, coin, amount, pubkey):
node_wallet = self.nodes[0]
inputs = [CTxIn(COutPoint(int(coin["txid"], 16), coin["vout"]))]
credit_outputs = []
tmp_amount = amount
if tmp_amount > COIN:
tmp_amount -= COIN
credit_outputs.append(CTxOut(COIN, key_to_p2pkh_script(pubkey)))
credit_outputs.append(CTxOut(tmp_amount, key_to_p2pkh_script(pubkey)))
lockTx_payload = CAssetLockTx(1, credit_outputs)
remaining = int(COIN * coin['amount']) - tiny_amount - amount
tx_output_ret = CTxOut(amount, CScript([OP_RETURN, b""]))
tx_output = CTxOut(remaining, CScript([pubkey, OP_CHECKSIG]))
lock_tx = CTransaction()
lock_tx.vin = inputs
lock_tx.vout = [tx_output, tx_output_ret] if remaining > 0 else [tx_output_ret]
lock_tx.nVersion = 3
lock_tx.nType = 8 # asset lock type
lock_tx.vExtraPayload = lockTx_payload.serialize()
lock_tx = node_wallet.signrawtransactionwithwallet(lock_tx.serialize().hex())
return tx_from_hex(lock_tx["hex"])
def create_assetunlock(self, index, withdrawal, pubkey=None, fee=tiny_amount):
node_wallet = self.nodes[0]
mninfo = self.mninfo
assert_greater_than(int(withdrawal), fee)
tx_output = CTxOut(int(withdrawal) - fee, CScript([pubkey, OP_CHECKSIG]))
# request ID = sha256("plwdtx", index)
request_id_buf = ser_string(b"plwdtx") + struct.pack("<Q", index)
request_id = hash256(request_id_buf)[::-1].hex()
height = node_wallet.getblockcount()
self.log.info(f"Creating asset unlock: {llmq_type_test} {request_id}")
quorumHash = mninfo[0].node.quorum("selectquorum", llmq_type_test, request_id)["quorumHash"]
self.log.info(f"Used quorum hash: {quorumHash}")
unlockTx_payload = CAssetUnlockTx(
version = 1,
index = index,
fee = fee,
requestedHeight = height,
quorumHash = int(quorumHash, 16),
quorumSig = b'\00' * 96)
unlock_tx = CTransaction()
unlock_tx.vin = []
unlock_tx.vout = [tx_output]
unlock_tx.nVersion = 3
unlock_tx.nType = 9 # asset unlock type
unlock_tx.vExtraPayload = unlockTx_payload.serialize()
unlock_tx.calc_sha256()
msgHash = format(unlock_tx.sha256, '064x')
recsig = self.get_recovered_sig(request_id, msgHash, llmq_type=llmq_type_test, use_platformsign=True)
unlockTx_payload.quorumSig = bytearray.fromhex(recsig["sig"])
unlock_tx.vExtraPayload = unlockTx_payload.serialize()
return unlock_tx
def get_credit_pool_balance(self, node = None, block_hash = None):
if node is None:
node = self.nodes[0]
if block_hash is None:
block_hash = node.getbestblockhash()
block = node.getblock(block_hash)
return int(COIN * block['cbTx']['creditPoolBalance'])
def validate_credit_pool_balance(self, expected = None, block_hash = None):
for node in self.nodes:
locked = self.get_credit_pool_balance(node=node, block_hash=block_hash)
if expected is None:
expected = locked
else:
assert_equal(expected, locked)
self.log.info(f"Credit pool amount matched with '{expected}'")
return expected
def check_mempool_size(self):
self.sync_mempools()
for node in self.nodes:
assert_equal(node.getmempoolinfo()['size'], self.mempool_size)
def check_mempool_result(self, result_expected, tx):
"""Wrapper to check result of testmempoolaccept on node_0's mempool"""
result_expected['txid'] = tx.rehash()
if result_expected['allowed']:
result_expected['vsize'] = tx.get_vsize()
result_test = self.nodes[0].testmempoolaccept([tx.serialize().hex()])
assert_equal([result_expected], result_test)
self.check_mempool_size()
def create_and_check_block(self, txes, expected_error = None):
node_wallet = self.nodes[0]
best_block_hash = node_wallet.getbestblockhash()
best_block = node_wallet.getblock(best_block_hash)
tip = int(best_block_hash, 16)
height = best_block["height"] + 1
block_time = best_block["time"] + 1
cbb = create_coinbase(height, dip4_activated=True, v20_activated=True)
gbt = node_wallet.getblocktemplate()
cbb.vExtraPayload = bytes.fromhex(gbt["coinbase_payload"])
cbb.rehash()
block = create_block(tip, cbb, block_time, version=4)
# Add quorum commitments from block template
for tx_obj in gbt["transactions"]:
tx = tx_from_hex(tx_obj["data"])
if tx.nType == 6:
block.vtx.append(tx)
for tx in txes:
block.vtx.append(tx)
block.hashMerkleRoot = block.calc_merkle_root()
block.solve()
result = node_wallet.submitblock(block.serialize().hex())
if result != expected_error:
raise AssertionError('mining the block should have failed with error %s, but submitblock returned %s' % (expected_error, result))
def set_sporks(self):
spork_enabled = 0
spork_disabled = 4070908800
self.nodes[0].sporkupdate("SPORK_17_QUORUM_DKG_ENABLED", spork_enabled)
self.nodes[0].sporkupdate("SPORK_19_CHAINLOCKS_ENABLED", spork_disabled)
self.nodes[0].sporkupdate("SPORK_2_INSTANTSEND_ENABLED", spork_disabled)
self.wait_for_sporks_same()
def ensure_tx_is_not_mined(self, tx_id):
try:
for node in self.nodes:
node.gettransaction(tx_id)
raise AssertionError("Transaction should not be mined")
except JSONRPCException as e:
assert "Invalid or non-wallet transaction id" in e.error['message']
def send_tx_simple(self, tx):
return self.nodes[0].sendrawtransaction(hexstring=tx.serialize().hex(), maxfeerate=0)
def send_tx(self, tx, expected_error = None, reason = None):
try:
self.log.info(f"Send tx with expected_error:'{expected_error}'...")
tx_res = self.send_tx_simple(tx)
if expected_error is None:
self.sync_mempools()
return tx_res
# failure didn't happen, but expected:
message = "Transaction should not be accepted"
if reason is not None:
message += ": " + reason
raise AssertionError(message)
except JSONRPCException as e:
assert expected_error in e.error['message']
def slowly_generate_batch(self, count):
self.log.info(f"Slowly generate {count} blocks")
while count > 0:
self.log.info(f"Generating batch of blocks {count} left")
batch = min(10, count)
count -= batch
self.bump_mocktime(batch)
self.nodes[1].generate(batch)
self.sync_all()
# This functional test intentionally setup only 2 MN and only 2 Evo nodes
# to ensure that corner case of quorum with minimum amount of nodes as possible
# does not cause any issues in Dash Core
def mine_quorum_2_nodes(self, llmq_type_name, llmq_type):
self.mine_quorum(llmq_type_name=llmq_type_name, expected_members=2, expected_connections=1, expected_contributions=2, expected_commitments=2, llmq_type=llmq_type)
def run_test(self):
node_wallet = self.nodes[0]
node = self.nodes[1]
self.set_sporks()
self.activate_v19(expected_activation_height=900)
self.log.info("Activated v19 at height:" + str(node.getblockcount()))
self.nodes[0].sporkupdate("SPORK_2_INSTANTSEND_ENABLED", 0)
self.wait_for_sporks_same()
self.mine_quorum_2_nodes(llmq_type_name='llmq_test_instantsend', llmq_type=104)
for _ in range(2):
self.dynamically_add_masternode(evo=True)
node.generate(8)
self.sync_blocks()
self.set_sporks()
self.activate_v20()
node.generate(1)
self.sync_all()
self.mempool_size = 0
key = ECKey()
key.generate()
privkey = bytes_to_wif(key.get_bytes())
node_wallet.importprivkey(privkey)
pubkey = key.get_pubkey().get_bytes()
self.test_asset_locks(node_wallet, node, pubkey)
self.test_asset_unlocks(node_wallet, node, pubkey)
self.test_withdrawal_limits(node_wallet, node, pubkey)
self.test_mn_rr(node_wallet, node, pubkey)
def test_asset_locks(self, node_wallet, node, pubkey):
self.log.info("Testing asset lock...")
locked_1 = 10 * COIN + 141421
locked_2 = 10 * COIN + 314159
coins = node_wallet.listunspent(query_options={'minimumAmount': Decimal(str(locked_2 / COIN))})
coin = coins.pop()
asset_lock_tx = self.create_assetlock(coin, locked_1, pubkey)
self.check_mempool_result(tx=asset_lock_tx, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
self.validate_credit_pool_balance(0)
txid_in_block = self.send_tx(asset_lock_tx)
rpc_tx = node.getrawtransaction(txid_in_block, 1)
assert_equal(len(rpc_tx["assetLockTx"]["creditOutputs"]), 2)
assert_equal(rpc_tx["assetLockTx"]["creditOutputs"][0]["valueSat"] + rpc_tx["assetLockTx"]["creditOutputs"][1]["valueSat"], locked_1)
assert_equal(rpc_tx["assetLockTx"]["creditOutputs"][0]["scriptPubKey"]["hex"], key_to_p2pkh_script(pubkey).hex())
assert_equal(rpc_tx["assetLockTx"]["creditOutputs"][1]["scriptPubKey"]["hex"], key_to_p2pkh_script(pubkey).hex())
self.validate_credit_pool_balance(0)
node.generate(1)
assert_equal(self.get_credit_pool_balance(node=node), locked_1)
self.log.info("Generate a number of blocks to ensure this is the longest chain for later in the test when we reconsiderblock")
node.generate(12)
self.sync_all()
self.validate_credit_pool_balance(locked_1)
# tx is mined, let's get blockhash
self.log.info("Invalidate block with asset lock tx...")
self.block_hash_1 = node_wallet.gettransaction(txid_in_block)['blockhash']
for inode in self.nodes:
inode.invalidateblock(self.block_hash_1)
assert_equal(self.get_credit_pool_balance(node=inode), 0)
node.generate(3)
self.sync_all()
self.validate_credit_pool_balance(0)
self.log.info("Resubmit asset lock tx to new chain...")
# NEW tx appears
asset_lock_tx_2 = self.create_assetlock(coin, locked_2, pubkey)
txid_in_block = self.send_tx(asset_lock_tx_2)
node.generate(1)
self.sync_all()
self.validate_credit_pool_balance(locked_2)
self.log.info("Reconsider old blocks...")
for inode in self.nodes:
inode.reconsiderblock(self.block_hash_1)
self.validate_credit_pool_balance(locked_1)
self.sync_all()
self.log.info('Mine block with incorrect credit-pool value...')
coin = coins.pop()
extra_lock_tx = self.create_assetlock(coin, COIN, pubkey)
self.create_and_check_block([extra_lock_tx], expected_error = 'bad-cbtx-assetlocked-amount')
self.log.info("Mine a quorum...")
self.mine_quorum_2_nodes(llmq_type_name='llmq_test_platform', llmq_type=106)
self.validate_credit_pool_balance(locked_1)
def test_asset_unlocks(self, node_wallet, node, pubkey):
self.log.info("Testing asset unlock...")
self.log.info("Generating several txes by same quorum....")
locked = self.get_credit_pool_balance()
self.validate_credit_pool_balance(locked)
asset_unlock_tx = self.create_assetunlock(101, COIN, pubkey)
asset_unlock_tx_late = self.create_assetunlock(102, COIN, pubkey)
asset_unlock_tx_too_late = self.create_assetunlock(103, COIN, pubkey)
asset_unlock_tx_too_big_fee = self.create_assetunlock(104, COIN, pubkey, fee=int(Decimal("0.1") * COIN))
asset_unlock_tx_zero_fee = self.create_assetunlock(105, COIN, pubkey, fee=0)
asset_unlock_tx_duplicate_index = copy.deepcopy(asset_unlock_tx)
# modify this tx with duplicated index to make a hash of tx different, otherwise tx would be refused too early
asset_unlock_tx_duplicate_index.vout[0].nValue += COIN
too_late_height = node.getblockcount() + 48
self.check_mempool_result(tx=asset_unlock_tx, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
self.check_mempool_result(tx=asset_unlock_tx_too_big_fee,
result_expected={'allowed': False, 'reject-reason' : 'max-fee-exceeded'})
self.check_mempool_result(tx=asset_unlock_tx_zero_fee,
result_expected={'allowed': False, 'reject-reason' : 'bad-txns-assetunlock-fee-outofrange'})
# not-verified is a correct faiure from mempool. Mempool knows nothing about CreditPool indexes and he just report that signature is not validated
self.check_mempool_result(tx=asset_unlock_tx_duplicate_index,
result_expected={'allowed': False, 'reject-reason' : 'bad-assetunlock-not-verified'})
self.log.info("Validating that we calculate payload hash correctly: ask quorum forcely by message hash...")
asset_unlock_tx_payload = CAssetUnlockTx()
asset_unlock_tx_payload.deserialize(BytesIO(asset_unlock_tx.vExtraPayload))
assert_equal(asset_unlock_tx_payload.quorumHash, int(self.mninfo[0].node.quorum("selectquorum", llmq_type_test, 'e6c7a809d79f78ea85b72d5df7e9bd592aecf151e679d6e976b74f053a7f9056')["quorumHash"], 16))
self.log.info("Test no IS for asset unlock...")
self.nodes[0].sporkupdate("SPORK_2_INSTANTSEND_ENABLED", 0)
self.wait_for_sporks_same()
txid = self.send_tx(asset_unlock_tx)
is_id = node_wallet.sendtoaddress(node_wallet.getnewaddress(), 1)
for node in self.nodes:
self.wait_for_instantlock(is_id, node)
tip = self.nodes[0].getblockcount()
indexes_statuses_no_height = self.nodes[0].getassetunlockstatuses(["101", "102", "300"])
assert_equal([{'index': 101, 'status': 'mempooled'}, {'index': 102, 'status': 'unknown'}, {'index': 300, 'status': 'unknown'}], indexes_statuses_no_height)
indexes_statuses_height = self.nodes[0].getassetunlockstatuses(["101", "102", "300"], tip)
assert_equal([{'index': 101, 'status': 'unknown'}, {'index': 102, 'status': 'unknown'}, {'index': 300, 'status': 'unknown'}], indexes_statuses_height)
rawtx = node.getrawtransaction(txid, 1)
rawtx_is = node.getrawtransaction(is_id, 1)
assert_equal(rawtx["instantlock"], False)
assert_equal(rawtx_is["instantlock"], True)
assert_equal(rawtx["chainlock"], False)
assert_equal(rawtx_is["chainlock"], False)
assert not "confirmations" in rawtx
assert not "confirmations" in rawtx_is
self.log.info("Disable back IS")
self.set_sporks()
assert "assetUnlockTx" in node.getrawtransaction(txid, 1)
self.mempool_size += 2
self.check_mempool_size()
self.validate_credit_pool_balance(locked)
node.generate(1)
self.sync_all()
assert_equal(rawtx["instantlock"], False)
assert_equal(rawtx["chainlock"], False)
rawtx = node.getrawtransaction(txid, 1)
assert_equal(rawtx["confirmations"], 1)
self.validate_credit_pool_balance(locked - COIN)
self.mempool_size -= 2
self.check_mempool_size()
block_asset_unlock = node.getrawtransaction(asset_unlock_tx.rehash(), 1)['blockhash']
self.send_tx(asset_unlock_tx,
expected_error = "Transaction already in block chain",
reason = "double copy")
self.log.info("Mining next quorum to check tx 'asset_unlock_tx_late' is still valid...")
self.mine_quorum_2_nodes(llmq_type_name='llmq_test_platform', llmq_type=106)
self.log.info("Checking credit pool amount is same...")
self.validate_credit_pool_balance(locked - 1 * COIN)
self.check_mempool_result(tx=asset_unlock_tx_late, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
self.log.info("Checking credit pool amount still is same...")
self.validate_credit_pool_balance(locked - 1 * COIN)
self.send_tx(asset_unlock_tx_late)
node.generate(1)
self.sync_all()
self.validate_credit_pool_balance(locked - 2 * COIN)
self.log.info("Generating many blocks to make quorum far behind (even still active)...")
self.slowly_generate_batch(too_late_height - node.getblockcount() - 1)
self.check_mempool_result(tx=asset_unlock_tx_too_late, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
node.generate(1)
self.sync_all()
self.check_mempool_result(tx=asset_unlock_tx_too_late,
result_expected={'allowed': False, 'reject-reason' : 'bad-assetunlock-too-late'})
self.log.info("Checking that two quorums later it is too late because quorum is not active...")
self.mine_quorum_2_nodes(llmq_type_name='llmq_test_platform', llmq_type=106)
self.log.info("Expecting new reject-reason...")
self.check_mempool_result(tx=asset_unlock_tx_too_late,
result_expected={'allowed': False, 'reject-reason' : 'bad-assetunlock-not-active-quorum'})
block_to_reconsider = node.getbestblockhash()
self.log.info("Test block invalidation with asset unlock tx...")
for inode in self.nodes:
inode.invalidateblock(block_asset_unlock)
self.validate_credit_pool_balance(locked)
self.slowly_generate_batch(50)
self.validate_credit_pool_balance(locked)
for inode in self.nodes:
inode.reconsiderblock(block_to_reconsider)
self.validate_credit_pool_balance(locked - 2 * COIN)
self.log.info("Forcibly mining asset_unlock_tx_too_late and ensure block is invalid")
self.create_and_check_block([asset_unlock_tx_too_late], expected_error = "bad-assetunlock-not-active-quorum")
node.generate(1)
self.sync_all()
self.validate_credit_pool_balance(locked - 2 * COIN)
self.validate_credit_pool_balance(block_hash=self.block_hash_1, expected=locked)
self.log.info("Forcibly mine asset_unlock_tx_duplicate_index and ensure block is invalid")
self.create_and_check_block([asset_unlock_tx_duplicate_index], expected_error = "bad-assetunlock-duplicated-index")
def test_withdrawal_limits(self, node_wallet, node, pubkey):
self.log.info("Testing withdrawal limits...")
self.log.info("Too big withdrawal is expected to not be mined")
asset_unlock_tx_full = self.create_assetunlock(201, 1 + self.get_credit_pool_balance(), pubkey)
self.log.info("Checking that transaction with exceeding amount accepted by mempool...")
# Mempool doesn't know about the size of the credit pool
self.check_mempool_result(tx=asset_unlock_tx_full, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
txid_in_block = self.send_tx(asset_unlock_tx_full)
node.generate(1)
self.sync_all()
self.ensure_tx_is_not_mined(txid_in_block)
self.log.info("Forcibly mine asset_unlock_tx_full and ensure block is invalid...")
self.create_and_check_block([asset_unlock_tx_full], expected_error = "failed-creditpool-unlock-too-much")
self.mempool_size += 1
asset_unlock_tx_full = self.create_assetunlock(301, self.get_credit_pool_balance(), pubkey)
self.check_mempool_result(tx=asset_unlock_tx_full, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
txid_in_block = self.send_tx(asset_unlock_tx_full)
expected_balance = (Decimal(self.get_credit_pool_balance()) - Decimal(tiny_amount))
node.generate(1)
self.sync_all()
self.log.info("Check txid_in_block was mined")
block = node.getblock(node.getbestblockhash())
assert txid_in_block in block['tx']
self.validate_credit_pool_balance(0)
self.log.info(f"Check status of withdrawal and try to spend it")
withdrawal_status = node_wallet.gettransaction(txid_in_block)
assert_equal(withdrawal_status['amount'] * COIN, expected_balance)
assert_equal(withdrawal_status['details'][0]['category'], 'platform-transfer')
spend_withdrawal_hex = node_wallet.createrawtransaction([{'txid': txid_in_block, 'vout' : 0}], { node_wallet.getnewaddress() : (expected_balance - Decimal(tiny_amount)) / COIN})
spend_withdrawal_hex = node_wallet.signrawtransactionwithwallet(spend_withdrawal_hex)['hex']
spend_withdrawal = tx_from_hex(spend_withdrawal_hex)
self.check_mempool_result(tx=spend_withdrawal, result_expected={'allowed': True, 'fees': {'base': Decimal(str(tiny_amount / COIN))}})
spend_txid_in_block = self.send_tx(spend_withdrawal)
node.generate(1)
block = node.getblock(node.getbestblockhash())
assert spend_txid_in_block in block['tx']
self.log.info("Fast forward to the next day to reset all current unlock limits...")
self.slowly_generate_batch(blocks_in_one_day)
self.mine_quorum_2_nodes(llmq_type_name='llmq_test_platform', llmq_type=106)
total = self.get_credit_pool_balance()
coins = node_wallet.listunspent()
while total <= 10_901 * COIN:
coin = coins.pop()
to_lock = int(coin['amount'] * COIN) - tiny_amount
if to_lock > 99 * COIN:
to_lock = 99 * COIN
total += to_lock
tx = self.create_assetlock(coin, to_lock, pubkey)
self.send_tx_simple(tx)
self.log.info(f"Collecting coins in pool... Collected {total}/{10_901 * COIN}")
self.sync_mempools()
node.generate(1)
self.sync_all()
credit_pool_balance_1 = self.get_credit_pool_balance()
assert_greater_than(credit_pool_balance_1, 10_901 * COIN)
limit_amount_1 = 1000 * COIN
self.log.info("Create 5 transactions and make sure that only 4 of them can be mined")
self.log.info("because their sum is bigger than the hard-limit (1000)")
# take most of limit by one big tx for faster testing and
# create several tiny withdrawal with exactly 1 *invalid* / causes spend above limit tx
withdrawals = [600 * COIN, 100 * COIN, 100 * COIN, 100 * COIN - 10000, 100 * COIN + 10001]
amount_to_withdraw_1 = sum(withdrawals)
index = 400
for next_amount in withdrawals:
index += 1
asset_unlock_tx = self.create_assetunlock(index, next_amount, pubkey)
last_txid = self.send_tx_simple(asset_unlock_tx)
# make sure larger amounts are mined first simply to make this test deterministic
node.prioritisetransaction(last_txid, next_amount // 10000)
self.sync_mempools()
node.generate(1)
self.sync_all()
new_total = self.get_credit_pool_balance()
amount_actually_withdrawn = total - new_total
self.log.info("Testing that we tried to withdraw more than we could")
assert_greater_than(amount_to_withdraw_1, amount_actually_withdrawn)
self.log.info("Checking that we tried to withdraw more than the hard-limit (1000)")
assert_greater_than(amount_to_withdraw_1, limit_amount_1)
self.log.info("Checking we didn't actually withdraw more than allowed by the limit")
assert_greater_than_or_equal(limit_amount_1, amount_actually_withdrawn)
assert_equal(amount_actually_withdrawn, 900 * COIN + 10001)
node.generate(1)
self.sync_all()
self.log.info("Checking that exactly 1 tx stayed in mempool...")
self.mempool_size = 1
self.check_mempool_size()
assert_equal(new_total, self.get_credit_pool_balance())
pending_txid = node.getrawmempool()[0]
amount_to_withdraw_2 = limit_amount_1 - amount_actually_withdrawn
self.log.info(f"We can still consume {Decimal(str(amount_to_withdraw_2 / COIN))} before we hit the hard-limit (1000)")
index += 1
asset_unlock_tx = self.create_assetunlock(index, amount_to_withdraw_2, pubkey)
self.send_tx_simple(asset_unlock_tx)
self.sync_mempools()
node.generate(1)
self.sync_all()
new_total = self.get_credit_pool_balance()
amount_actually_withdrawn = total - new_total
assert_equal(limit_amount_1, amount_actually_withdrawn)
self.log.info("Checking that exactly the same tx as before stayed in mempool and it's the only one...")
self.mempool_size = 1
self.check_mempool_size()
assert_equal(new_total, self.get_credit_pool_balance())
assert pending_txid in node.getrawmempool()
self.log.info("Fast forward to next day again...")
self.slowly_generate_batch(blocks_in_one_day - 1)
self.log.info("Checking mempool is empty now...")
self.mempool_size = 0
self.check_mempool_size()
self.log.info("Creating new asset-unlock tx. It should be mined exactly 1 block after")
credit_pool_balance_2 = self.get_credit_pool_balance()
limit_amount_2 = credit_pool_balance_2 // 10
index += 1
asset_unlock_tx = self.create_assetunlock(index, limit_amount_2, pubkey)
self.send_tx(asset_unlock_tx)
node.generate(1)
self.sync_all()
assert_equal(new_total, self.get_credit_pool_balance())
node.generate(1)
self.sync_all()
new_total -= limit_amount_2
assert_equal(new_total, self.get_credit_pool_balance())
self.log.info("Trying to withdraw more... expecting to fail")
index += 1
asset_unlock_tx = self.create_assetunlock(index, COIN, pubkey)
self.send_tx(asset_unlock_tx)
node.generate(1)
self.sync_all()
tip = self.nodes[0].getblockcount()
indexes_statuses_no_height = self.nodes[0].getassetunlockstatuses(["101", "102", "103"])
assert_equal([{'index': 101, 'status': 'mined'}, {'index': 102, 'status': 'mined'}, {'index': 103, 'status': 'unknown'}], indexes_statuses_no_height)
indexes_statuses_height = self.nodes[0].getassetunlockstatuses(["101", "102", "103"], tip)
assert_equal([{'index': 101, 'status': 'chainlocked'}, {'index': 102, 'status': 'chainlocked'}, {'index': 103, 'status': 'unknown'}], indexes_statuses_height)
self.log.info("generate many blocks to be sure that mempool is empty after expiring txes...")
self.slowly_generate_batch(60)
self.log.info("Checking that credit pool is not changed...")
assert_equal(new_total, self.get_credit_pool_balance())
self.check_mempool_size()
def test_mn_rr(self, node_wallet, node, pubkey):
self.log.info("Activate mn_rr...")
locked = self.get_credit_pool_balance()
node.generate(12 - node.getblockcount() % 12)
self.activate_mn_rr(expected_activation_height=node.getblockcount() + 12 * 3)
self.log.info(f'height: {node.getblockcount()} credit: {self.get_credit_pool_balance()}')
assert_equal(locked, self.get_credit_pool_balance())
bt = node.getblocktemplate()
platform_reward = bt['masternode'][0]['amount']
assert_equal(bt['masternode'][0]['script'], '6a') # empty OP_RETURN
owner_reward = bt['masternode'][1]['amount']
operator_reward = bt['masternode'][2]['amount'] if len(bt['masternode']) == 3 else 0
all_mn_rewards = platform_reward + owner_reward + operator_reward
assert_equal(all_mn_rewards, bt['coinbasevalue'] * 3 // 4) # 75/25 mn/miner reward split
assert_equal(platform_reward, all_mn_rewards * 375 // 1000) # 0.375 platform share
assert_equal(platform_reward, 31916328)
assert_equal(locked, self.get_credit_pool_balance())
node.generate(1)
self.sync_all()
locked += platform_reward
assert_equal(locked, self.get_credit_pool_balance())
coins = node_wallet.listunspent(query_options={'minimumAmount': 1})
coin = coins.pop()
self.send_tx(self.create_assetlock(coin, COIN, pubkey))
locked += platform_reward + COIN
node.generate(1)
self.sync_all()
assert_equal(locked, self.get_credit_pool_balance())
if __name__ == '__main__':
AssetLocksTest().main()
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