def run_test(self):
with self.run_node_with_connections(
"Scenario 1",
0, [
'-banscore=100000', '-genesisactivationheight=110',
'-maxstdtxvalidationduration=100'
],
number_of_connections=1) as (conn, ):
coinbase1 = make_new_block(conn)
for _ in range(110):
make_new_block(conn)
tx_parent = create_transaction(coinbase1, 0, CScript(),
coinbase1.vout[0].nValue - 1000,
CScript([OP_TRUE]))
tx_parent.rehash()
tx_orphan = make_big_orphan(
tx_parent, DEFAULT_MAX_TX_SIZE_POLICY_AFTER_GENESIS)
assert_equal(len(tx_orphan.serialize()),
DEFAULT_MAX_TX_SIZE_POLICY_AFTER_GENESIS)
conn.send_message(msg_tx(tx_orphan))
# Making sure parent is not sent right away for bitcond to detect an orphan
time.sleep(1)
conn.send_message(msg_tx(tx_parent))
self.check_mempool(conn.rpc, [tx_parent, tx_orphan])
def get_tests(self):
# shorthand for functions
block = self.chain.next_block
node = self.nodes[0]
self.chain.set_genesis_hash( int(node.getbestblockhash(), 16) )
block(0)
yield self.accepted()
test, out, _ = prepare_init_chain(self.chain, 100, 100)
yield test
# Create transaction with OP_RETURN in the locking script.
tx1 = create_transaction(out[1].tx, out[1].n, b"", 100000, CScript([OP_RETURN]))
self.test.connections[0].send_message(msg_tx(tx1))
# wait for transaction processing
sleep(1)
# Mine block (height 102) with new transaction.
self.nodes[0].generate(1)
# Obtain newly mined block. It should contain new transaction tx1.
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(len(tx), 2)
assert_equal(tx1.hash, tx[1])
self.log.info("Created transaction %s on height %d",
tx1.hash, self.genesisactivationheight-2)
# Create transaction with OP_TRUE in the unlocking that tries to spend tx1.
tx2 = create_transaction(tx1, 0, b'\x51', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx2))
# wait for transaction processing
sleep(1)
# Mine block (height 103).
self.nodes[0].generate(1)
# Obtain newly mined block. It should NOT contain new transaction tx2.
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(len(tx), 1)
self.log.info("Created transaction %s on height %d that tries to spend transaction on height %d",
tx2.hash, self.genesisactivationheight-1, self.genesisactivationheight-2)
# Create transaction with OP_RETURN in the locking script.
tx3 = create_transaction(out[2].tx, out[2].n, b"", 100000, CScript([OP_RETURN]))
self.test.connections[0].send_message(msg_tx(tx3))
# Create transaction with OP_TRUE in the unlocking that tries to spend tx3.
tx4 = create_transaction(tx3, 0, b'\x51', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx4))
# wait for transaction processing
sleep(1)
# Mine block (height 104) with new transactions.
self.nodes[0].generate(1)
# Obtain newly mined block. It should contain new transactions tx3 and tx4.
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(len(tx), 3)
assert_equal(tx3.hash, tx[1])
assert_equal(tx4.hash, tx[2])
self.log.info("Created transactions %s and %s on height %d that tries to spend transaction on height %d",
tx3.hash, tx4.hash, self.genesisactivationheight, self.genesisactivationheight)
def run_test(self):
test_node = TestNode()
connections = []
connections.append(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node,
"regtest", True))
test_node.add_connection(connections[0])
# Start up network handling in another thread
NetworkThread().start()
test_node.wait_for_verack()
# Verify mininodes are connected to zcashd nodes
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(0, peerinfo[0]["banscore"])
self.coinbase_blocks = self.nodes[0].generate(1)
self.nodes[0].generate(100)
self.nodeaddress = self.nodes[0].getnewaddress()
# Mininodes send transaction to zcashd node.
def setExpiryHeight(tx):
tx.nExpiryHeight = 101
spendtx = self.create_transaction(self.nodes[0],
self.coinbase_blocks[0],
self.nodeaddress,
1.0,
txModifier=setExpiryHeight)
test_node.send_message(msg_tx(spendtx))
time.sleep(3)
# Verify test mininode has not been dropped
# and still has a banscore of 0.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(0, peerinfo[0]["banscore"])
# Mine a block and resend the transaction
self.nodes[0].generate(1)
test_node.send_message(msg_tx(spendtx))
time.sleep(3)
# Verify test mininode has not been dropped
# but has a banscore of 10.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(10, peerinfo[0]["banscore"])
[c.disconnect_node() for c in connections]
def get_tests(self):
# shorthand for functions
block = self.chain.next_block
node = get_rpc_proxy(self.nodes[0].url,
1,
timeout=6000,
coveragedir=self.nodes[0].coverage_dir)
self.chain.set_genesis_hash(int(node.getbestblockhash(), 16))
block(0)
yield self.accepted()
test, out, _ = prepare_init_chain(self.chain, 200, 200)
yield test
txHashes = []
for i in range(18):
txLarge = create_transaction(
out[i].tx, out[i].n, b"", ONE_MEGABYTE * 256,
CScript([
OP_FALSE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE * 256))
]))
self.test.connections[0].send_message(msg_tx(txLarge))
self.check_mempool(node, [txLarge], timeout=6000)
txHashes.append([txLarge.hash, txLarge.sha256])
txOverflow = create_transaction(
out[18].tx, out[18].n, b"", ONE_MEGABYTE * 305,
CScript(
[OP_FALSE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE * 305))]))
self.test.connections[0].send_message(msg_tx(txOverflow))
self.check_mempool(node, [txOverflow], timeout=6000)
txHashes.append([txOverflow.hash, txOverflow.sha256])
txOverflow = create_transaction(
out[19].tx, out[19].n, b"", ONE_MEGABYTE,
CScript([OP_FALSE, OP_RETURN,
bytearray([42] * ONE_MEGABYTE)]))
self.test.connections[0].send_message(msg_tx(txOverflow))
self.check_mempool(node, [txOverflow], timeout=6000)
txHashes.append([txOverflow.hash, txOverflow.sha256])
# Mine block with new transactions.
self.log.info("BLOCK 2 - mining")
minedBlock2 = node.generate(1)
self.log.info("BLOCK 2 - mined")
for txHash in txHashes:
tx = FromHex(CTransaction(),
self.nodes[0].getrawtransaction(txHash[0]))
tx.rehash()
assert_equal(tx.sha256, txHash[1])
def run_test(self):
test_node = TestNode()
connections = []
connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0],
test_node, "regtest", True))
test_node.add_connection(connections[0])
# Start up network handling in another thread
NetworkThread().start()
test_node.wait_for_verack()
# Verify mininodes are connected to zcashd nodes
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(0, peerinfo[0]["banscore"])
self.coinbase_blocks = self.nodes[0].generate(1)
self.nodes[0].generate(100)
self.nodeaddress = self.nodes[0].getnewaddress()
# Mininodes send transaction to zcashd node.
def setExpiryHeight(tx):
tx.nExpiryHeight = 101
spendtx = self.create_transaction(self.nodes[0],
self.coinbase_blocks[0],
self.nodeaddress, 1.0,
txModifier=setExpiryHeight)
test_node.send_message(msg_tx(spendtx))
time.sleep(3)
# Verify test mininode has not been dropped
# and still has a banscore of 0.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(0, peerinfo[0]["banscore"])
# Mine a block and resend the transaction
self.nodes[0].generate(1)
test_node.send_message(msg_tx(spendtx))
time.sleep(3)
# Verify test mininode has not been dropped
# but has a banscore of 10.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(1, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(10, peerinfo[0]["banscore"])
[ c.disconnect_node() for c in connections ]
def get_tests(self):
# shorthand for functions
block = self.chain.next_block
node = get_rpc_proxy(self.nodes[0].url, 1, timeout=6000, coveragedir=self.nodes[0].coverage_dir)
self.chain.set_genesis_hash( int(node.getbestblockhash(), 16) )
# Create a new block
block(0)
self.chain.save_spendable_output()
yield self.accepted()
# Now we need that block to mature so we can spend the coinbase.
test = TestInstance(sync_every_block=False)
for i in range(200):
block(5000 + i)
test.blocks_and_transactions.append([self.chain.tip, True])
self.chain.save_spendable_output()
yield test
# Collect spendable outputs now to avoid cluttering the code later on
out = []
for i in range(200):
out.append(self.chain.get_spendable_output())
txHashes = []
for i in range(18):
txLarge = create_transaction(out[i].tx, out[i].n, b"", ONE_MEGABYTE * 256, CScript([OP_FALSE, OP_RETURN, bytearray([42] * (ONE_MEGABYTE * 256))]))
self.test.connections[0].send_message(msg_tx(txLarge))
self.check_mempool(node, [txLarge])
txHashes.append([txLarge.hash, txLarge.sha256])
txOverflow = create_transaction(out[18].tx, out[18].n, b"", ONE_MEGABYTE * 305, CScript([OP_FALSE, OP_RETURN, bytearray([42] * (ONE_MEGABYTE * 305))]))
self.test.connections[0].send_message(msg_tx(txOverflow))
self.check_mempool(node, [txOverflow])
txHashes.append([txOverflow.hash, txOverflow.sha256])
txOverflow = create_transaction(out[19].tx, out[19].n, b"", ONE_MEGABYTE, CScript([OP_FALSE, OP_RETURN, bytearray([42] * ONE_MEGABYTE)]))
self.test.connections[0].send_message(msg_tx(txOverflow))
self.check_mempool(node, [txOverflow])
txHashes.append([txOverflow.hash, txOverflow.sha256])
# Mine block with new transactions.
self.log.info("BLOCK 2 - mining")
minedBlock2 = node.generate(1)
self.log.info("BLOCK 2 - mined")
for txHash in txHashes:
tx = FromHex(CTransaction(), self.nodes[0].getrawtransaction(txHash[0]))
tx.rehash()
assert_equal(tx.sha256, txHash[1])
def test_compactblock_reconstruction_multiple_peers(
self, node, stalling_peer, delivery_peer):
assert (len(self.utxos))
def announce_cmpct_block(node, peer):
utxo = self.utxos.pop(0)
block = self.build_block_with_transactions(node, utxo, 5)
cmpct_block = HeaderAndShortIDs()
cmpct_block.initialize_from_block(block)
msg = msg_cmpctblock(cmpct_block.to_p2p())
peer.send_and_ping(msg)
with mininode_lock:
assert "getblocktxn" in peer.last_message
return block, cmpct_block
block, cmpct_block = announce_cmpct_block(node, stalling_peer)
for tx in block.vtx[1:]:
delivery_peer.send_message(msg_tx(tx))
delivery_peer.sync_with_ping()
mempool = node.getrawmempool()
for tx in block.vtx[1:]:
assert (tx.hash in mempool)
delivery_peer.send_and_ping(msg_cmpctblock(cmpct_block.to_p2p()))
assert_equal(int(node.getbestblockhash(), 16), block.sha256)
self.utxos.append(
[block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
# Now test that delivering an invalid compact block won't break relay
block, cmpct_block = announce_cmpct_block(node, stalling_peer)
for tx in block.vtx[1:]:
delivery_peer.send_message(msg_tx(tx))
delivery_peer.sync_with_ping()
cmpct_block.prefilled_txn[0].tx.wit.vtxinwit = [CTxInWitness()]
cmpct_block.prefilled_txn[0].tx.wit.vtxinwit[0].scriptWitness.stack = [
ser_uint256(0)
]
cmpct_block.use_witness = True
delivery_peer.send_and_ping(msg_cmpctblock(cmpct_block.to_p2p()))
assert (int(node.getbestblockhash(), 16) != block.sha256)
msg = msg_blocktxn()
msg.block_transactions.blockhash = block.sha256
msg.block_transactions.transactions = block.vtx[1:]
stalling_peer.send_and_ping(msg)
assert_equal(int(node.getbestblockhash(), 16), block.sha256)
def get_tests(self):
# shorthand for functions
block = self.chain.next_block
node = self.nodes[0]
self.chain.set_genesis_hash(int(node.getbestblockhash(), 16))
# Create a new block
block(0)
self.chain.save_spendable_output()
yield self.accepted()
# Now we need that block to mature so we can spend the coinbase.
test = TestInstance(sync_every_block=False)
for i in range(100):
block(5000 + i)
test.blocks_and_transactions.append([self.chain.tip, True])
self.chain.save_spendable_output()
yield test
# collect spendable outputs now to avoid cluttering the code later on
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
# Create transaction with OP_RETURN in the locking script.
tx1 = create_transaction(out[0].tx, out[0].n, b'', 100000,
CScript([OP_RETURN]))
self.test.connections[0].send_message(msg_tx(tx1))
# wait for transaction processing
sleep(1)
# generate an empty block, height is 102
block(1, spend=out[1])
yield self.accepted()
tx2 = create_transaction(tx1, 0, b'\x51', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx2))
# wait for transaction processing
sleep(1)
# Mine block (height 103) with new transactions.
self.nodes[0].generate(1)
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(len(tx), 3)
assert_equal(tx1.hash, tx[1])
assert_equal(tx2.hash, tx[2])
def run_scenario2(self, conn, spend, num_txs_to_create, locking_script, additional_txs=[], shuffle_txs=False, money_to_spend=2000000, timeout=60):
# A handler to catch any reject messages.
# - it is expected to get only 'too-long-validation-time' reject msgs.
rejected_txs = []
def on_reject(conn, msg):
assert_equal(msg.reason, b'too-long-validation-time')
rejected_txs.append(msg)
conn.cb.on_reject = on_reject
# Create and send tx chains with non-std outputs.
# - one tx with vout_size=num_txs_to_create outpoints will be created
txchains = self.generate_and_send_txchains_n(conn, 1, 1, spend, locking_script, money_to_spend, num_txs_to_create, timeout)
# Check if required transactions are accepted by the mempool.
self.check_mempool(conn.rpc, txchains, timeout)
# Create a new block
# - having an empty mempool (before submitting non-std txs) will simplify further checks.
conn.rpc.generate(1)
# Create and send transactions spending non-std outputs.
nonstd_txs = self.generate_transactons(txchains, CScript([OP_TRUE]), locking_script)
all_txs = nonstd_txs + additional_txs
if shuffle_txs:
random.shuffle(all_txs)
for tx in all_txs:
conn.send_message(msg_tx(tx))
# Check if the validation queues are empty.
conn.rpc.waitforptvcompletion()
return nonstd_txs+additional_txs, rejected_txs
def run_scenario1(self,
conn,
num_of_chains,
chain_length,
spend,
allowhighfees=False,
dontcheckfee=False,
timeout=30):
# Create tx chains.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend)
# Send txns, one by one, through p2p interface.
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
# Check if there is an expected number of transactions in the validation queues
# - this scenario relies on ptv delayed processing
# - ptv is required to be paused
wait_until(lambda: conn.rpc.getblockchainactivity()["transactions"] ==
num_of_chains * chain_length,
timeout=timeout)
# No transactions should be in the mempool.
assert_equal(conn.rpc.getmempoolinfo()['size'], 0)
# Resubmit txns through rpc interface
# - there should be num_of_chains*chain_length txns detected as known transactions
# - due to the fact that all were already received via p2p interface
for tx in range(len(txchains)):
assert_raises_rpc_error(-26, "txn-already-known",
conn.rpc.sendrawtransaction,
ToHex(txchains[tx]), allowhighfees,
dontcheckfee)
# No transactions should be in the mempool.
assert_equal(conn.rpc.getmempoolinfo()['size'], 0)
return txchains
def _process_p2p_rejects(self, connection, to_reject, reasons, test_label,
height_label):
rejects = []
def on_reject(_, msg):
rejects.append(msg)
with connection.cb.temporary_override_callback(on_reject=on_reject):
for tx, reason in zip(to_reject, reasons):
self.log.info(
f"Sending and processing the reject tx {loghash(tx.hash)} for expecting reason {reason}"
)
del rejects[:]
connection.send_message(msg_tx(tx))
wait_until(
lambda:
(len(rejects) == 1) and rejects[0].data == tx.sha256,
timeout=30,
check_interval=0.2,
label=
f"Waiting tx to be rejected. Reason {reason} At {test_label} {height_label} tx:{tx.hash}"
)
if reason:
assert rejects[
0].reason == reason, f"Mismatching rejection reason: got {rejects[0].reason} expected {reason}"
self.log.info(
f"Tx {loghash(tx.hash)} is rejected as expected for reason {reason}"
)
def run_scenario3(self,
conn,
num_of_chains,
chain_length,
spend,
allowhighfees=False,
dontcheckfee=False,
timeout=30):
# Create and send tx chains.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend)
# Prepare inputs for sendrawtransactions
rpc_txs_bulk_input = []
for tx in range(len(txchains)):
# Collect txn input data for bulk submit through rpc interface.
rpc_txs_bulk_input.append({
'hex': ToHex(txchains[tx]),
'allowhighfees': allowhighfees,
'dontcheckfee': dontcheckfee
})
# Send a txn, one by one, through p2p interface.
conn.send_message(msg_tx(txchains[tx]))
# Check if there is an expected number of transactions in the validation queues
# - this scenario relies on ptv delayed processing
wait_until(lambda: conn.rpc.getblockchainactivity()["transactions"] ==
num_of_chains * chain_length,
timeout=timeout)
# Submit a batch of txns through rpc interface.
rejected_txns = conn.rpc.sendrawtransactions(rpc_txs_bulk_input)
# There should be num_of_chains * chain_length rejected transactions.
# - there are num_of_chains*chain_length known transactions
# - due to the fact that all were received through the p2p interface
# - all are waiting in the ptv queues
assert_equal(len(rejected_txns['known']), num_of_chains * chain_length)
# No transactions should be in the mempool.
assert_equal(conn.rpc.getmempoolinfo()['size'], 0)
def run_test(self):
with self.run_node_with_connections(
"Scenario 1",
0, ['-acceptnonstdtxn=1', '-genesisactivationheight=10'],
number_of_connections=1) as (conn, ):
coinbase_tx, coinbase_key = make_coinbase(conn)
conn.rpc.generate(100)
tx_data = spend_tx_to_data(coinbase_tx, coinbase_key)
conn.send_message(msg_tx(tx_data))
conn.cb.sync_with_ping()
url = urllib.parse.urlparse(self.nodes[0].url)
json_mempool = json.loads(
http_get_call(url.hostname, url.port,
f'/rest/mempool/contents.json'))
json_tx = json.loads(
http_get_call(
url.hostname, url.port,
f'/rest/getutxos/checkmempool/{tx_data.hash}-0.json'))
assert len(
json_mempool
) == 1, f"Only one tx should be in mempool. Found {len(json_mempool)}"
assert tx_data.hash in json_mempool, "Our tx should be in mempool"
assert json_tx['utxos'][0]['scriptPubKey'][
'hex'] == bytes_to_hex_str(OP_TRUE_OP_RETURN_SCRIPT)
def send_txn(self, rpcsend, conn, tx):
if conn is not None:
conn.send_message(msg_tx(tx))
elif rpcsend is not None:
self.rpc_send_txn(rpcsend, tx)
else:
raise Exception("Unspecified interface!")
def run_scenario3(self,
conn,
spend,
num_txs_to_create,
locking_script,
num_ds_to_create=0,
shuffle_txs=False,
money_to_spend=2000000,
timeout=60):
all_nonstd_txs = []
all_ds_txs = []
# Create the set of required txs.
for tx in spend:
nonstd_txs, ds_txs, rejected_txs = self.run_scenario2(
conn, [tx], num_txs_to_create, locking_script,
num_ds_to_create, [], shuffle_txs, False, money_to_spend,
timeout)
all_nonstd_txs += nonstd_txs
all_ds_txs += ds_txs
all_txs = all_nonstd_txs + all_ds_txs
# Shuffle txs if it is required
if shuffle_txs:
random.shuffle(all_txs)
# Send txs
for tx in all_txs:
conn.send_message(msg_tx(tx))
# Return ds set if was required to create.
if len(all_ds_txs):
return all_nonstd_txs, all_ds_txs, rejected_txs
return all_nonstd_txs, rejected_txs
def assert_rejected_transaction(self, out):
def on_reject(conn, msg):
assert_equal(msg.reason, b'scriptsig-not-pushonly')
transaction_op_add = create_transaction(out.tx, out.n, CScript([1, 1, OP_ADD]), 100000, CScript([OP_TRUE]))
self.test.connections[0].cb.on_reject = on_reject
self.test.connections[0].send_message(msg_tx(transaction_op_add))
self.test.connections[0].cb.wait_for_reject()
def submit_to_mempool(conn, *txs_lists):
txs = list(splice(*txs_lists))
expected_mempool_size = conn.rpc.getmempoolinfo()["size"] + len(txs)
for tx in txs:
conn.send_message(msg_tx(tx))
# All planned transactions should be accepted into the mempool
wait_until(
lambda: conn.rpc.getmempoolinfo()["size"] == expected_mempool_size)
def run_test(self):
with self.run_node_with_connections(
"Scenario 1", 0, ['-acceptnonstdtxn=1'],
number_of_connections=1) as (conn, ):
coinbase_tx, coinbase_key = make_coinbase(conn)
conn.rpc.generate(100)
sep_tx, sep_keys = make_separator_tx(coinbase_tx, coinbase_key, 5)
conn.send_message(msg_tx(sep_tx))
sleep(1)
conn.rpc.generate(10)
tx, _ = spend_separator_tx(sep_tx, sep_keys)
conn.send_message(msg_tx(tx))
wait_until(lambda: len(conn.rpc.getrawmempool()) == 1, timeout=5)
def run_scenario1(self, conn, num_of_chains, chain_length, spend, timeout):
# Create and send tx chains.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend)
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
# Check if the validation queues are empty.
wait_until(lambda: self.nodes[0].rpc.getblockchainactivity()["transactions"] == 0, timeout=timeout)
# Check if required transactions are accepted by the mempool.
self.check_mempool(conn.rpc, txchains, timeout)
def generate_and_send_txchains_n(self, conn, num_of_chains, chain_length, spend, locking_script, money_to_spend=5000000000, factor=10, timeout=60):
# Create and send txs. In this case there will be num_txs_to_create txs of chain length equal 1.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend, CScript(), locking_script, money_to_spend, factor)
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
# Check if the validation queues are empty.
wait_until(lambda: conn.rpc.getblockchainactivity()["transactions"] == 0, timeout=timeout)
return txchains
def generate_and_send_txchains_n(self, conn, num_of_chains, chain_length, spend, locking_script, money_to_spend=2000000, vout_size=10, timeout=60):
# Create and send txs. In this case there will be num_txs_to_create txs of chain length equal 1.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend, CScript(), locking_script, money_to_spend, vout_size)
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
# Check if the validation queues are empty.
wait_for_ptv_completion(conn, num_of_chains*chain_length, timeout=timeout)
return txchains
def run_scenario1(self, conn, num_of_chains, chain_length, spend, timeout):
# Create and send tx chains.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend)
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
# Check if the validation queues are empty.
wait_for_ptv_completion(conn,
num_of_chains * chain_length,
timeout=timeout)
# Check if required transactions are accepted by the mempool.
self.check_mempool(conn.rpc, txchains, timeout)
def run_scenario2(self,
conn,
spend,
num_txs_to_create,
locking_script,
num_ds_to_create=0,
additional_txs=[],
shuffle_txs=False,
send_txs=True,
money_to_spend=2000000,
timeout=60):
# A handler to catch reject messages.
rejected_txs = []
def on_reject(conn, msg):
rejected_txs.append(msg)
# A double spend reject message is the expected one to occur.
assert_equal(msg.reason, b'txn-double-spend-detected')
conn.cb.on_reject = on_reject
# Create and send tx chains with non-std outputs.
# - one tx with vout_size=num_txs_to_create outpoints will be created
txchains = self.generate_and_send_txchains_n(conn, 1, 1, spend,
locking_script,
money_to_spend,
num_txs_to_create,
timeout)
# Check if required transactions are accepted by the mempool.
self.check_mempool(conn.rpc, txchains, timeout)
# Create a new block
# - having an empty mempool (before submitting non-std txs) will simplify further checks.
conn.rpc.generate(1)
# Create and send transactions spending non-std outputs.
nonstd_txs, ds_txs = self.generate_transactons(txchains,
CScript([OP_TRUE]),
locking_script,
num_ds_to_create)
all_txs = nonstd_txs + ds_txs + additional_txs
# Shuffle txs if it is required
if shuffle_txs:
random.shuffle(all_txs)
# Send txs if it is required
if send_txs:
for tx in all_txs:
conn.send_message(msg_tx(tx))
# Return ds set if was requested.
if len(ds_txs):
return nonstd_txs + additional_txs, ds_txs, rejected_txs
return nonstd_txs + additional_txs, rejected_txs
def _process_p2p_accepts(self, connection, to_accept, test_label, height_label):
for tx in to_accept:
self.log.info(f"Sending and processing the accept tx {tx.hash}")
connection.send_message(msg_tx(tx))
def tt():
mempool = connection.rpc.getrawmempool()
return all((t.hash in mempool) for t in to_accept)
wait_until(tt,
timeout=10, check_interval=0.2,
label=f"Waiting txs to be accepted. At {test_label} {height_label} tx:{','.join(tx.hash[:8]+'...' for tx in to_accept) }")
def send_transaction(self, testnode, block, address, expiry_height):
tx = create_transaction(self.nodes[0], block, address, 10.0,
expiry_height)
testnode.send_message(msg_tx(tx))
# Sync up with node after p2p messages delivered
testnode.sync_with_ping()
# Sync nodes 0 and 1
sync_blocks(self.nodes[:2])
sync_mempools(self.nodes[:2])
return tx
def assert_rejected_transaction(self, out):
def on_reject(conn, msg):
assert_equal(
msg.reason,
b'mandatory-script-verify-flag-failed (Only non-push operators allowed in signatures)'
)
transaction_op_add = create_transaction(
out.tx, out.n, CScript([1, 1, OP_ADD, OP_DROP]), 100000,
CScript([OP_TRUE]))
self.test.connections[0].cb.on_reject = on_reject
self.test.connections[0].send_message(msg_tx(transaction_op_add))
self.test.connections[0].cb.wait_for_reject()
def create_and_send_transactions(self, conn, spendtx, num_of_transactions, money_to_spend=5000000000):
for i in range(0, num_of_transactions):
money_to_spend = money_to_spend - 500000000 # Large fee required for big txns
tx = create_tx(spendtx, 0, money_to_spend, script=CScript([OP_DROP, OP_TRUE]))
tx.vout.append(CTxOut(0, CScript([OP_FALSE, OP_RETURN, bytearray([0x00] * (ONE_MEGABYTE * 880))])))
self.sign_tx(tx, spendtx, 0)
tx.rehash()
conn.send_message(msg_tx(tx))
wait_until(lambda: tx.hash in conn.rpc.getrawmempool(), timeout=int(360 * self.options.timeoutfactor))
logger.info("Submitted txn {} of {}".format(i+1, num_of_transactions))
assert conn.rpc.getmempoolinfo()['size'] == i+1
spendtx = tx
def get_tests(self):
# shorthand for functions
block = self.chain.next_block
node = self.nodes[0]
self.chain.set_genesis_hash(int(node.getbestblockhash(), 16))
block(0)
yield self.accepted()
test, out, _ = prepare_init_chain(self.chain, 100, 100)
yield test
# Create transaction with OP_RETURN in the locking script.
tx1 = create_transaction(out[0].tx, out[0].n, b'', 100000,
CScript([OP_RETURN]))
self.test.connections[0].send_message(msg_tx(tx1))
# wait for transaction processing
sleep(1)
# generate an empty block, height is 102
block(1, spend=out[1])
yield self.accepted()
tx2 = create_transaction(tx1, 0, b'\x51', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx2))
# wait for transaction processing
sleep(1)
# Mine block (height 103) with new transactions.
self.nodes[0].generate(1)
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(len(tx), 3)
assert_equal(tx1.hash, tx[1])
assert_equal(tx2.hash, tx[2])
def send_transaction(self, testnode, block, address, expiry_height):
tx = create_transaction(self.nodes[0],
block,
address,
10.0,
expiry_height)
testnode.send_message(msg_tx(tx))
# Sync up with node after p2p messages delivered
testnode.sync_with_ping()
# Sync nodes 0 and 1
sync_blocks(self.nodes[:2])
sync_mempools(self.nodes[:2])
return tx
def generate_and_send_txchains_n(self,
conn,
num_of_chains,
chain_length,
spend,
locking_script,
money_to_spend=5000000000,
factor=10,
timeout=60):
# Create and send txs. In this case there will be num_txs_to_create txs of chain length equal 1.
txchains = self.get_txchains_n(num_of_chains, chain_length, spend,
CScript(), locking_script,
money_to_spend, factor)
for tx in range(len(txchains)):
conn.send_message(msg_tx(txchains[tx]))
return txchains
def create_fund_txn(self,
conn,
noutput,
tx_fee,
locking_script,
pubkey=None):
# create a new block with coinbase
last_block_info = conn.rpc.getblock(conn.rpc.getbestblockhash())
coinbase = create_coinbase(height=last_block_info["height"] + 1,
pubkey=pubkey)
new_block = create_block(int(last_block_info["hash"], 16),
coinbase=coinbase,
nTime=last_block_info["time"] + 1)
new_block.nVersion = last_block_info["version"]
new_block.solve()
conn.send_message(msg_block(new_block))
wait_until(lambda: conn.rpc.getbestblockhash() == new_block.hash,
check_interval=0.3)
# mature the coinbase
conn.rpc.generate(100)
# create and send a funding txn
funding_tx = self.create_tx([(coinbase, 0)], 2, 1.5, locking_script)
conn.send_message(msg_tx(funding_tx))
check_mempool_equals(conn.rpc, [funding_tx])
conn.rpc.generate(1)
# create a new txn which pays the specified tx_fee
new_tx = self.create_tx([(funding_tx, 0)], noutput, tx_fee,
locking_script)
last_block_info = conn.rpc.getblock(conn.rpc.getbestblockhash())
new_block = create_block(
int(last_block_info["hash"], 16),
coinbase=create_coinbase(height=last_block_info["height"] + 1),
nTime=last_block_info["time"] + 1)
new_block.nVersion = last_block_info["version"]
new_block.vtx.append(new_tx)
new_block.hashMerkleRoot = new_block.calc_merkle_root()
new_block.calc_sha256()
new_block.solve()
conn.send_message(msg_block(new_block))
wait_until(lambda: conn.rpc.getbestblockhash() == new_block.hash,
check_interval=0.3)
return new_tx
def run_scenario3(self, conn, spend, num_txs_to_create, locking_script, num_ds_to_create=0, shuffle_txs=False, money_to_spend=2000000, timeout=60):
all_nonstd_txs = []
all_ds_txs = []
# Create the set of required txs.
for tx in spend:
nonstd_txs, ds_txs, rejected_txs = self.run_scenario2(conn, [tx], num_txs_to_create, locking_script, num_ds_to_create, [], shuffle_txs, False, money_to_spend, timeout)
all_nonstd_txs += nonstd_txs
all_ds_txs += ds_txs
all_txs = all_nonstd_txs + all_ds_txs
# Shuffle txs if it is required
if shuffle_txs:
random.shuffle(all_txs)
# Send txs
for tx in all_txs:
conn.send_message(msg_tx(tx))
# Check if the validation queues are empty.
wait_until(lambda: conn.rpc.getblockchainactivity()["transactions"] == 0, timeout=timeout)
# Return ds set if was required to create.
if len(all_ds_txs):
return all_nonstd_txs, all_ds_txs, rejected_txs
return all_nonstd_txs, rejected_txs