def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
block_0=False,
start_block=0,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
block2_hard = self.chain.next_block(block_count,
spend=out[0],
extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count,
spend=out[0],
extra_txns=2)
easier_block_num = block_count
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count,
spend=out[0],
extra_txns=10)
block_count += 1
# make child block of easier block
self.chain.set_tip(easier_block_num)
block5 = self.chain.next_block(block_count)
block5_num = block_count
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
# send blocks via different p2p connection
node0.send_message(msg_block(block2_hard))
node1.send_message(msg_block(block4_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
# send easier block through different p2p connection too
node2.send_message(msg_block(block3_easier))
self.log.info(f"easier block hash: {block3_easier.hash}")
self.nodes[0].waitforblockheight(102)
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
# child block of block3_easier
self.log.info(f"child block hash: {block5.hash}")
self.nodes[0].waitaftervalidatingblock(block5.hash, "add")
# make sure child block is in waiting list and then send it
wait_for_not_validating_blocks({block5.hash}, self.nodes[0], self.log)
node2.send_message(msg_block(block5))
# make sure we started validating child block
wait_for_validating_blocks({block5.hash}, self.nodes[0], self.log)
# finish validation on block2_hard
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "remove")
wait_for_not_validating_blocks({block2_hard.hash}, self.nodes[0],
self.log)
# finish validation on child block
self.nodes[0].waitaftervalidatingblock(block5.hash, "remove")
wait_for_not_validating_blocks({block5.hash}, self.nodes[0], self.log)
# block5 should be active at this point
assert_equal(block5.hash, self.nodes[0].getbestblockhash())
# finish validation on block4_hard
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "remove")
wait_for_not_validating_blocks({block4_hard.hash}, self.nodes[0],
self.log)
# block5 should still be active at this point
assert_equal(block5.hash, self.nodes[0].getbestblockhash())
# Make three siblings and send them via same p2p connection.
block6_hard = self.chain.next_block(block_count,
spend=out[1],
extra_txns=8)
block_count += 1
self.chain.set_tip(block5_num)
block7_easier = self.chain.next_block(block_count,
spend=out[1],
extra_txns=2)
block_count += 1
self.chain.set_tip(block5_num)
block8_hard = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
block_count += 1
self.log.info(f"hard block6 hash: {block6_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block6_hard.hash, "add")
self.log.info(f"hard block8 hash: {block8_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block8_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block6_hard.hash, block8_hard.hash},
self.nodes[0], self.log)
# sending blocks via same p2p connection
node0.send_message(msg_block(block6_hard))
node0.send_message(msg_block(block8_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block6_hard.hash, block8_hard.hash},
self.nodes[0], self.log)
# send easier block through same p2p connection too
node0.send_message(msg_block(block7_easier))
self.nodes[0].waitforblockheight(104)
assert_equal(block7_easier.hash, self.nodes[0].getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
self.nodes[0].waitaftervalidatingblock(block6_hard.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block8_hard.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block7_easier.hash, self.nodes[0].getbestblockhash())
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
# Create transaction that will almost fill block file when next block will be generated (~130 MB)
tx1 = create_transaction(
out[0].tx, out[0].n, b"", ONE_MEGABYTE * 120,
CScript(
[OP_TRUE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE * 120))]))
self.test.connections[0].send_message(msg_tx(tx1))
# Wait for transaction processing
self.check_mempool(node, [tx1], timeout=6000)
# Mine block with new transaction.
minedBlock1 = node.generate(1)
# Send 4 large (~1GB) transactions that will go into next block
for i in range(4):
txLarge = create_transaction(
out[1 + i].tx, out[1 + i].n, b"", ONE_GIGABYTE,
CScript([
OP_TRUE, OP_RETURN,
bytearray([42] * (ONE_GIGABYTE - ONE_MEGABYTE))
]))
self.test.connections[0].send_message(msg_tx(txLarge))
self.check_mempool(node, [txLarge], timeout=6000)
# Send overflow
txOverflow = create_transaction(
out[5].tx, out[5].n, b"", ONE_MEGABYTE * 305,
CScript(
[OP_TRUE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE * 305))]))
self.test.connections[0].send_message(msg_tx(txOverflow))
self.check_mempool(node, [txOverflow], timeout=6000)
# Mine block with new transactions.
minedBlock2 = node.generate(1)
txLast = create_transaction(
out[6].tx, out[6].n, b"", ONE_MEGABYTE,
CScript([OP_TRUE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE))]))
self.test.connections[0].send_message(msg_tx(txLast))
self.check_mempool(node, [txLast], timeout=6000)
# Mine block with new transaction.
minedBlock3 = node.generate(1)
# Restart node to make sure that the index is written to disk
self.stop_nodes()
self.nodes[0].rpc_timeout = 6000
self.start_nodes(self.extra_args)
# Get proxy with bigger timeout
node = get_rpc_proxy(self.nodes[0].url,
1,
timeout=6000,
coveragedir=self.nodes[0].coverage_dir)
# Verify that blocks were correctly written / read
blockDetails1 = node.getblock(minedBlock1[0])
blockDetails2 = node.getblock(minedBlock2[0])
blockDetails3 = node.getblock(minedBlock3[0])
assert_equal(minedBlock1[0], blockDetails1['hash'])
assert_equal(minedBlock2[0], blockDetails2['hash'])
assert_equal(minedBlock3[0], blockDetails3['hash'])
for txId in blockDetails1['tx']:
txCopy = node.getrawtransaction(txId, 1)
assert_equal(txId, txCopy['txid'])
for txId in blockDetails2['tx']:
txCopy = node.getrawtransaction(txId, 1)
assert_equal(txId, txCopy['txid'])
for txId in blockDetails3['tx']:
txCopy = node.getrawtransaction(txId, 1)
assert_equal(txId, txCopy['txid'])
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection0 = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection0)
node1 = NodeConnCB()
connection1 = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection1)
# *** Prepare node connection for early announcements testing
node2 = NodeConnCB()
node2.add_connection(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2))
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
# *** Activate early announcement functionality for this connection
# After this point the early announcements are not received yet -
# we still need to set latest announced block (CNode::pindexBestKnownBlock)
# which is set for e.g. by calling best headers message with locator
# set to non-null
node2.wait_for_verack()
node2.send_message(msg_sendcmpct(announce=True))
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, outs, block_count = prepare_init_chain(self.chain,
101,
1,
block_0=False,
start_block=0,
node=node0)
out = outs[0]
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# adding extra transactions to get different block hashes
block2_hard = self.chain.next_block(block_count,
spend=out,
extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count,
spend=out,
extra_txns=2)
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count,
spend=out,
extra_txns=10)
block_count += 1
# send three "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
# *** Complete early announcement setup by sending getheaders message
# with a non-null locator (pointing to the last block that we know
# of on python side - we claim that we know of all the blocks that
# bitcoind node knows of)
#
# We also set on_cmpctblock handler as early announced blocks are
# announced via compact block messages instead of inv messages
node2.send_and_ping(
msg_getheaders(
locator_have=[int(self.nodes[0].getbestblockhash(), 16)]))
receivedAnnouncement = False
waiting_for_announcement_block_hash = block2_hard.sha256
def on_cmpctblock(conn, message):
nonlocal receivedAnnouncement
message.header_and_shortids.header.calc_sha256()
if message.header_and_shortids.header.sha256 == waiting_for_announcement_block_hash:
receivedAnnouncement = True
node2.on_cmpctblock = on_cmpctblock
# send one block via p2p and one via rpc
node0.send_message(msg_block(block2_hard))
# *** make sure that we receive announcement of the block before it has
# been validated
wait_until(lambda: receivedAnnouncement)
# making rpc call submitblock in a separate thread because waitaftervalidation is blocking
# the return of submitblock
submitblock_thread = threading.Thread(target=self.nodes[0].submitblock,
args=(ToHex(block4_hard), ))
submitblock_thread.start()
# because self.nodes[0] rpc is blocked we use another rpc client
rpc_client = get_rpc_proxy(rpc_url(
get_datadir_path(self.options.tmpdir, 0), 0),
0,
coveragedir=self.options.coveragedir)
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash},
rpc_client, self.log)
# *** prepare to intercept block3_easier announcement - it will not be
# announced before validation is complete as early announcement is
# limited to announcing one block per height (siblings are ignored)
# but after validation is complete we should still get the announcing
# compact block message
receivedAnnouncement = False
waiting_for_announcement_block_hash = block3_easier.sha256
self.log.info(f"easy block3 hash: {block3_easier.hash}")
node1.send_message(msg_block(block3_easier))
# *** Make sure that we receive compact block announcement of the block
# after the validation is complete even though it was not the first
# block that was received by bitcoind node.
#
# Also make sure that we receive inv announcement of the block after
# the validation is complete by the nodes that are not using early
# announcement functionality.
wait_until(lambda: receivedAnnouncement)
node0.wait_for_inv([CInv(2, block3_easier.sha256)
]) # 2 == GetDataMsg::MSG_BLOCK
# node 1 was the sender but receives inv for block non the less
# (with early announcement that's not the case - sender does not receive the announcement)
node1.wait_for_inv([CInv(2, block3_easier.sha256)
]) # 2 == GetDataMsg::MSG_BLOCK
rpc_client.waitforblockheight(102)
assert_equal(block3_easier.hash, rpc_client.getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
rpc_client.waitaftervalidatingblock(block2_hard.hash, "remove")
rpc_client.waitaftervalidatingblock(block4_hard.hash, "remove")
submitblock_thread.join()
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
block_0=False,
start_block=0,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# left branch
block2 = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block2_num = block_count
block_count += 1
node0.send_message(msg_block(block2))
self.log.info(f"block2 hash: {block2.hash}")
self.nodes[0].waitforblockheight(102)
# send blocks 3,4 for parallel validation on left branch
block3 = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
block_count += 1
self.chain.set_tip(block2_num)
block4 = self.chain.next_block(block_count, spend=out[1], extra_txns=8)
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"block3 hash: {block3.hash}")
self.nodes[0].waitaftervalidatingblock(block3.hash, "add")
self.log.info(f"block4 hash: {block4.hash}")
self.nodes[0].waitaftervalidatingblock(block4.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block3.hash, block4.hash}, self.nodes[0],
self.log)
node0.send_message(msg_block(block3))
node2.send_message(msg_block(block4))
# make sure we started validating blocks
wait_for_validating_blocks({block3.hash, block4.hash}, self.nodes[0],
self.log)
# right branch
self.chain.set_tip(tip_block_num)
block5 = self.chain.next_block(block_count,
spend=out[0],
extra_txns=10)
block_count += 1
node1.send_message(msg_block(block5))
self.log.info(f"block5 hash: {block5.hash}")
# and two blocks to extend second branch to cause reorg
# - they must be sent from the same node as otherwise they will be
# rejected with "prev block not found"
block6 = self.chain.next_block(block_count)
node1.send_message(msg_block(block6))
self.log.info(f"block6 hash: {block6.hash}")
block_count += 1
block7 = self.chain.next_block(block_count)
node1.send_message(msg_block(block7))
self.log.info(f"block7 hash: {block7.hash}")
block_count += 1
self.nodes[0].waitforblockheight(104)
assert_equal(block7.hash, self.nodes[0].getbestblockhash())
self.log.info(
"releasing wait status on parallel blocks to finish their validation"
)
self.nodes[0].waitaftervalidatingblock(block3.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block4.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# block that arrived last on competing chain should be active
assert_equal(block7.hash, self.nodes[0].getbestblockhash())
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, 101, 100)
yield test
########## SCENARIO 1
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 2)
# Create and send tx1 and tx2 that are valid before genesis.
tx1 = create_transaction(out[0].tx, out[0].n, b'', 100000, CScript([OP_IF, OP_0, OP_ELSE, OP_1, OP_ELSE, OP_2, OP_ENDIF]))
tx2 = create_transaction(tx1, 0, CScript([OP_0]), 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx1))
self.test.connections[0].send_message(msg_tx(tx2))
# wait for transactions to be accepted.
wait_until(lambda: len(node.getrawmempool()) == 2, timeout=5)
assert_equal(True, tx1.hash in node.getrawmempool())
assert_equal(True, tx2.hash in node.getrawmempool())
# Generate an empty block, height is then 103 and mempool is cleared.
block103 = block(1, spend=out[1])
yield self.accepted()
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 1)
assert_equal(len(node.getrawmempool()), 0)
# Send transactions tx1 and tx2 once again, this time with Genesis rules (mempool height is 104).
self.test.connections[0].send_message(msg_tx(tx1))
self.test.connections[0].send_message(msg_tx(tx2))
# wait for transaction processing
# Tx2 should not be valid anymore.
wait_until(lambda: len(node.getrawmempool()) == 1, timeout=5)
assert_equal(True, tx1.hash in node.getrawmempool())
assert_equal(False, tx2.hash in node.getrawmempool())
# Now send tx1 and tx2 again, but this time in block. Block should be rejected.
block = create_block(int("0x" + node.getbestblockhash(), 16), create_coinbase(height=1, outputValue=25))
add_tx_to_block(block, [tx1,tx2])
rejected_blocks = []
rejected_txs = []
def on_reject(conn, msg):
if (msg.message == b'block'):
rejected_blocks.append(msg)
assert_equal(msg.reason, b'blk-bad-inputs')
if msg.message == b'tx':
rejected_txs.append(msg)
self.test.connections[0].cb.on_reject = on_reject
self.test.connections[0].send_message(msg_block(block))
wait_until(lambda: len(rejected_blocks) > 0, timeout=5, lock=mininode_lock)
assert_equal(rejected_blocks[0].data, block.sha256)
assert_equal(False, block.hash == node.getbestblockhash())
########## SCENARIO 2
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 1)
# Create and send tx3 and tx4 that are valid after genesis.
tx3 = create_transaction(out[2].tx, out[2].n, b'', 100000, CScript([OP_IF, OP_2, OP_2MUL, OP_ENDIF, OP_1]))
tx4 = create_transaction(tx3, 0, CScript([OP_0]), 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(tx3))
self.test.connections[0].send_message(msg_tx(tx4))
# wait for transaction in mempool
wait_until(lambda: tx3.hash in node.getrawmempool(), timeout=5)
wait_until(lambda: tx4.hash in node.getrawmempool(), timeout=5)
# Invalidate block --> we are then at state before Genesis. Mempool is cleared.
node.invalidateblock(hashToHex(block103.sha256))
assert_equal(False, tx3.hash in node.getrawmempool())
assert_equal(False, tx4.hash in node.getrawmempool())
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 2)
# Send tx3 again, this time in pre-genesis rules. It is accepted to mempool.
self.test.connections[0].send_message(msg_tx(tx3))
wait_until(lambda: tx3.hash in node.getrawmempool(), timeout=5)
# Generate a block (height 103) with tx3 in it.
node.generate(1)
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 1)
assert_equal(True, tx3.hash in node.getblock(node.getbestblockhash())['tx'])
# Send tx4 again, again with Genesis rules. It should not be accepted to mempool.
self.test.connections[0].send_message(msg_tx(tx4))
wait_until(lambda: tx4.sha256 in [msg.data for msg in rejected_txs], timeout=5, lock=mininode_lock)
assert_equal(len(node.getrawmempool()), 0)
# Send tx4 again, this time in block. Block should be rejected.
block = create_block(int("0x" + node.getbestblockhash(), 16), create_coinbase(height=1, outputValue=25))
add_tx_to_block(block, [tx4])
self.test.connections[0].send_message(msg_block(block))
# Wait for hash in rejected blocks
wait_until(lambda: block.sha256 in [msg.data for msg in rejected_blocks], timeout=5, lock=mininode_lock)
assert_equal(False, block.hash == node.getbestblockhash())
########## SCENARIO 3
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 1)
# Generate a block (height 104) with tx5 and tx6 (valid after genesis).
tx5 = create_transaction(out[3].tx, out[3].n, b'', 100000, CScript([OP_IF, OP_2, OP_2MUL, OP_ENDIF, OP_1]))
tx6 = create_transaction(tx5, 0, CScript([OP_0]), 1, CScript([OP_TRUE]))
blockGenesis = create_block(int("0x" + node.getbestblockhash(), 16), create_coinbase(height=1, outputValue=25))
add_tx_to_block(blockGenesis, [tx5, tx6])
self.test.connections[0].send_message(msg_block(blockGenesis))
wait_until(lambda: blockGenesis.hash == node.getbestblockhash(), timeout=5)
assert_equal(True, tx5.hash in node.getblock(node.getbestblockhash())['tx'])
assert_equal(True, tx6.hash in node.getblock(node.getbestblockhash())['tx'])
# Invalidate block 104. tx5 and tx6 are in now in mempool.
node.invalidateblock(hashToHex(blockGenesis.sha256))
assert_equal(True, tx5.hash in node.getrawmempool())
assert_equal(True, tx6.hash in node.getrawmempool())
assert_equal(node.getblock(node.getbestblockhash())['height'], self.genesisactivationheight - 1)
# Invalidate block 103. tx5 and tx6 are not in mempool anymore.
node.invalidateblock(node.getbestblockhash())
assert_equal(False, tx5.hash in node.getrawmempool())
assert_equal(False, tx6.hash in node.getrawmempool())
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, outs, block_count = prepare_init_chain(self.chain, 101, 1, block_0=False, start_block=0, node=node0)
out = outs[0]
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# adding extra transactions to get different block hashes
block2_hard = self.chain.next_block(block_count, spend=out, extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count, spend=out, extra_txns=2)
block_count += 1
mining_candidate = self.nodes[0].getminingcandidate()
block4_hard = self.chain.next_block(block_count)
block4_hard.hashPrevBlock = int(mining_candidate["prevhash"], 16)
block4_hard.nTime = mining_candidate["time"]
block4_hard.nVersion = mining_candidate["version"]
block4_hard.solve()
mining_solution = {"id": mining_candidate["id"],
"nonce": block4_hard.nNonce,
"coinbase": ToHex(block4_hard.vtx[0]),
"time": mining_candidate["time"],
"version": mining_candidate["version"]}
# send three "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash}, self.nodes[0], self.log)
# send one block via p2p and one via rpc
node0.send_message(msg_block(block2_hard))
# making rpc call submitminingsolution in a separate thread because waitaftervalidation is blocking
# the return of submitminingsolution
submitminingsolution_thread = threading.Thread(target=self.nodes[0].submitminingsolution, args=(mining_solution,))
submitminingsolution_thread.start()
# because self.nodes[0] rpc is blocked we use another rpc client
rpc_client = get_rpc_proxy(rpc_url(get_datadir_path(self.options.tmpdir, 0), 0), 0,
coveragedir=self.options.coveragedir)
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash}, rpc_client, self.log)
self.log.info(f"easy block3 hash: {block3_easier.hash}")
node1.send_message(msg_block(block3_easier))
rpc_client.waitforblockheight(102)
assert_equal(block3_easier.hash, rpc_client.getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
rpc_client.waitaftervalidatingblock(block2_hard.hash, "remove")
rpc_client.waitaftervalidatingblock(block4_hard.hash, "remove")
submitminingsolution_thread.join()
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
def get_tests(self):
rejected_txs = []
def on_reject(conn, msg):
if msg.message == b'tx':
rejected_txs.append(msg)
self.test.connections[0].cb.on_reject = on_reject
# 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, 150, 150)
yield test
# Create transaction with OP_ADD in the locking script which should be banned
txOpAdd1 = create_transaction(out[0].tx, out[0].n, b'', 100000, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd1])
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd2))
# wait for transaction processing
wait_until(lambda: txOpAdd2.sha256 in [msg.data for msg in rejected_txs], timeout=5, lock=mininode_lock)
assert_equal(len(rejected_txs), 1) # rejected
assert_equal(rejected_txs[0].reason, b'max-script-num-length-policy-limit-violated (Script number overflow)')
wait_until(lambda: len(self.nodes[0].listbanned()) == 1, timeout=5) # and banned
self.nodes[0].clearbanned()
wait_until(lambda: len(self.nodes[0].listbanned()) == 0, timeout=5) # and not banned
rejected_txs = []
# node was banned we need to restart the node
self.restart_network()
# TODO: This sleep needs to be replaced with a proper wait_until function
sleep(3)
self.test.connections[0].cb.on_reject = on_reject
# generate a block, height is genesis gracefull height - 2
block(1)
# Create transaction with multiple OP_ELSE in the locking script which should be accepted to block
txOpElse1 = create_transaction(out[1].tx, out[1].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
#update Block with OP_ELSE transaction
self.chain.update_block(1, [txOpElse1])
yield self.accepted()
# generate a block, height is genesis gracefull height - 1
block(2)
# Create transaction that spends the previous transaction
txOpElse2 = create_transaction(txOpElse1, 0, b'', 1, CScript([OP_TRUE]))
# Update block with new transactions.
self.chain.update_block(2, [txOpElse2])
yield self.accepted()
assert_equal(len(rejected_txs), 0) #not rejected
assert len(self.nodes[0].listbanned()) == 0 # and not banned
# Create transaction with OP_ELSE in the locking script and send it to mempool which should be accepted
txOpElse1 = create_transaction(out[2].tx, out[2].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.test.connections[0].send_message(msg_tx(txOpElse1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse1])
txOpElse2 = create_transaction(txOpElse1, 0, b'', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElse2))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse2])
assert_equal(len(rejected_txs), 0) # not rejected
assert len(self.nodes[0].listbanned()) == 0 # and not banned
# generate a block to move into genesis gracefull height
block(3)
# Create transaction with multiple OP_ELSE in the locking script which should be accepted to block and will be spent later when we move into Genesis
txOpElseIsSpentInGenesis1 = create_transaction(out[3].tx, out[3].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.chain.update_block(3, [txOpElseIsSpentInGenesis1])
yield self.accepted()
# Create transaction with OP_ELSE in the locking script and send it to mempool which should be accepted
txOpElse1 = create_transaction(out[4].tx, out[4].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.test.connections[0].send_message(msg_tx(txOpElse1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse1])
txOpElse2 = create_transaction(txOpElse1, 0, b'', 1, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElse2))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse2])
assert_equal(len(rejected_txs), 0) #not rejected
assert len(self.nodes[0].listbanned()) == 0 # and not banned
# Create transaction with OP_ADD in the locking script and send it to mempool
# which should not be banned (but should be rejected instead), because we are in Genesis gracefull period now
txOpAdd1 = create_transaction(out[5].tx, out[5].n, b'', 100003, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd1])
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 3, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd2))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) #rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'genesis-script-verify-flag-failed (Script number overflow)')
assert len(self.nodes[0].listbanned()) == 0 # and not banned
rejected_txs = []
# generate a block, height is genesis gracefull height + 1
block(4)
# Create transaction with OP_ELSE in the locking script which should be accepted to block
txOpElse1 = create_transaction(out[6].tx, out[6].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
#update Block with OP_ELSE transaction
self.chain.update_block(4, [txOpElse1])
yield self.accepted()
# generate a block, height is genesis gracefull height + 2
block(5)
# Create transaction that spends the previous transaction
txOpElse2 = create_transaction(txOpElse1, 0, b'', 1, CScript([OP_TRUE]))
# Update block with new transactions.
self.chain.update_block(5, [txOpElse2])
yield self.accepted()
assert_equal(len(rejected_txs), 0) # not rejected
assert len(self.nodes[0].listbanned()) == 0 # not banned
# Create transaction that will check if CheckRegularTransaction method inside TxnValidation method will reject instead ban the node
txPubKeys = create_transaction(out[7].tx, out[7].n, b'', 100000, CScript(([OP_1] + makePubKeys(1) + [5000, OP_CHECKMULTISIG])*1001))
self.test.connections[0].send_message(msg_tx(txPubKeys))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) #rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'flexible-bad-txn-sigops')
assert len(self.nodes[0].listbanned()) == 0 # not banned
rejected_txs = []
#now we need to raise block count so we are in genesis
height = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['height']
for x in range(height, self.genesisactivationheight):
block(6000 + x)
test.blocks_and_transactions.append([self.chain.tip, True])
yield test
height = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['height']
assert_equal(height, self.genesisactivationheight) # check if we are in right height
# Create transaction with OP_ELSE in the locking script and send it to mempool
# which should not be banned but should be rejected now
txOpElse1 = create_transaction(out[8].tx, out[8].n, b'', 100004, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.test.connections[0].send_message(msg_tx(txOpElse1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse1])
# Create transaction that spends the previous transaction
txOpElse2 = create_transaction(txOpElse1, 0, b'', 4, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElse2))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) #rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'genesis-script-verify-flag-failed (Invalid OP_IF construction)')
assert len(self.nodes[0].listbanned()) == 0 # not banned
rejected_txs = []
# generate an empty block, height is Genesis + 1
block(6)
#Create transaction with OP_ADD in the locking script that should be accepted to block
txOpAdd1 = create_transaction(out[9].tx, out[9].n, b'', 100003, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.chain.update_block(6, [txOpAdd1])
yield self.accepted()
# generate an empty block, height is Genesis + 2 and make
block(7)
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 3, CScript([OP_TRUE]))
self.chain.update_block(7, [txOpAdd2])
yield self.accepted()
assert_equal(len(rejected_txs), 0) #not rejected
assert len(self.nodes[0].listbanned()) == 0 # not banned
# Create transaction with OP_ADD in the locking script and send it to mempool
# which should not be banned (but should be rejected instead), because we are in genesis gracefull period now
txOpAdd1 = create_transaction(out[10].tx, out[10].n, b'', 100003, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd1])
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 3, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd2))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd2])
assert_equal(len(rejected_txs), 0) # not rejected
assert len(self.nodes[0].listbanned()) == 0 # not banned
# Create transaction that spends the OP_ELSE transaction that was put into block before Genesis
txOpElseIsSpentInGenesis2 = create_transaction(txOpElseIsSpentInGenesis1, 0, b'', 4, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElseIsSpentInGenesis2))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElseIsSpentInGenesis2])
assert_equal(len(rejected_txs), 0) #not rejected
assert len(self.nodes[0].listbanned()) == 0 # not banned
# generate a block
block(8)
# Create transaction with multiple OP_ELSE in the locking script which should be accepted to block and will be spent later when we move into Genesis
txOpElseIsSpentInGenesis3 = create_transaction(out[11].tx, out[11].n, b'', 100000, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.chain.update_block(8, [txOpElseIsSpentInGenesis3])
yield self.accepted()
# Create transaction that spends the OP_ELSE transaction that was put into block after Genesis
txOpElseIsSpentInGenesis4 = create_transaction(txOpElseIsSpentInGenesis3, 0, b'', 4, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElseIsSpentInGenesis4))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) #rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'genesis-script-verify-flag-failed (Invalid OP_IF construction)')
assert len(self.nodes[0].listbanned()) == 0 # not banned
rejected_txs = []
height = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['height']
genesisHeightNoGracefullPeriod = self.genesisactivationheight + int(GENESIS_GRACEFULL_ACTIVATION_PERIOD)
#now we need to raise block count so we are in genesis but before gracefull period is over
for x in range(height, genesisHeightNoGracefullPeriod):
block(6000 + x)
test.blocks_and_transactions.append([self.chain.tip, True])
yield test
height = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['height']
assert_equal(height, self.genesisactivationheight + int(GENESIS_GRACEFULL_ACTIVATION_PERIOD)) # check if we are in right height
# generate an empty block, height is Genesis + gracefull period + 1, we moved beyond gracefull period now
block(9, spend=out[12])
yield self.accepted()
# generate a block, height is Genesis + gracefull period + 2
block(10)
#Create transaction with OP_ADD in the locking script that should be accepted to block
txOpAdd1 = create_transaction(out[13].tx, out[13].n, b'', 100003, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.chain.update_block(10, [txOpAdd1])
yield self.accepted()
# generate a block, height is Genesis + gracefull period + 3
block(11)
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 3, CScript([OP_TRUE]))
self.chain.update_block(11, [txOpAdd2])
yield self.accepted()
assert_equal(len(rejected_txs), 0) # accepted
assert len(self.nodes[0].listbanned()) == 0 # not banned
# Create transaction with OP_ADD in the locking script and send it to mempool
# which should not be banned (but should be rejected instead), because we are in genesis gracefull period now
txOpAdd1 = create_transaction(out[14].tx, out[14].n, b'', 100003, CScript([b'\xFF'*4, b'\xFF'*4, OP_ADD, OP_4, OP_ADD, OP_DROP, OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd1])
# Create transaction that spends the previous transaction
txOpAdd2 = create_transaction(txOpAdd1, 0, b'', 3, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpAdd2))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpAdd2])
assert_equal(len(rejected_txs), 0) # accepted
assert len(self.nodes[0].listbanned()) == 0 # not banned
# Create transaction with OP_ELSE in the locking script which should now be banned
txOpElse1 = create_transaction(out[15].tx, out[15].n, b'', 100004, CScript([OP_FALSE, OP_IF, OP_FALSE, OP_ELSE, OP_TRUE, OP_ELSE, OP_FALSE, OP_ENDIF]))
self.test.connections[0].send_message(msg_tx(txOpElse1))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txOpElse1])
# Create transaction that spends the previous transaction
txOpElse2 = create_transaction(txOpElse1, 0, b'', 4, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txOpElse2))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) #rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'mandatory-script-verify-flag-failed (Invalid OP_IF construction)')
wait_until(lambda: len(self.nodes[0].listbanned()) == 1, timeout=5) # banned
rejected_txs = []
self.nodes[0].clearbanned()
wait_until(lambda: len(self.nodes[0].listbanned()) == 0, timeout=5) # and not banned
rejected_txs = []
# node was banned we need to restart the node
self.restart_network()
# TODO: This sleep needs to be replaced with a proper wait_until function
sleep(3)
self.test.connections[0].cb.on_reject = on_reject
# Create transaction with OP_NOP that exceeds policy limits to check that node does not get banned for exceeding our policy limit
txPubKeys = create_transaction(out[16].tx, out[16].n, b'', 100004, CScript([OP_TRUE] + [OP_NOP] * 1001))
self.test.connections[0].send_message(msg_tx(txPubKeys))
# wait for transaction processing
self.check_mempool(self.test.connections[0].rpc, [txPubKeys])
# Create transaction that spends the previous transaction
txPubKeys2 = create_transaction(txPubKeys, 0, b'', 4, CScript([OP_TRUE]))
self.test.connections[0].send_message(msg_tx(txPubKeys2))
# wait for transaction processing
wait_until(lambda: len(rejected_txs) > 0, timeout=5, lock=mininode_lock) # rejected
assert_equal(len(rejected_txs), 1)
assert_equal(rejected_txs[0].reason, b'non-mandatory-script-verify-flag (Operation limit exceeded)')
assert len(self.nodes[0].listbanned()) == 0 # banned
def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
network_thread = NetworkThread()
network_thread.start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain, 101, 100, block_0=False, start_block=0, node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
block1_num = block_count - 1
# num of sig operations in one transaction
num_of_sig_checks = 70
expensive_scriptPubKey = [OP_DUP, OP_HASH160, hash160(self.coinbase_pubkey),
OP_EQUALVERIFY, OP_CHECKSIG, OP_DROP] * num_of_sig_checks + [OP_DUP, OP_HASH160,
hash160(
self.coinbase_pubkey),
OP_EQUALVERIFY,
OP_CHECKSIG]
money_to_spend = 5000000000
spend = out[0]
block2_hard = self.chain.next_block(block_count)
# creates 4000 hard transaction and 4000 transaction to spend them. It will be 8k transactions in total
add_txns = self.get_hard_transactions(spend, money_to_spend=money_to_spend, num_of_transactions=4000,
num_of_sig_checks=num_of_sig_checks,
expensive_script=expensive_scriptPubKey)
self.chain.update_block(block_count, add_txns)
block_count += 1
self.log.info(f"block2_hard hash: {block2_hard.hash}")
self.chain.set_tip(block1_num)
block3_easier = self.chain.next_block(block_count)
add_txns = self.get_hard_transactions(spend, money_to_spend=money_to_spend, num_of_transactions=1000,
num_of_sig_checks=num_of_sig_checks,
expensive_script=expensive_scriptPubKey)
self.chain.update_block(block_count, add_txns)
self.log.info(f"block3_easier hash: {block3_easier.hash}")
node0.send_message(msg_block(block2_hard))
node0.send_message(msg_block(block3_easier))
def wait_for_log():
text_activation = f"Block {block2_hard.hash} was not activated as best"
text_block2 = "Verify 8000 txins"
text_block3 = "Verify 2000 txins"
results = 0
for line in open(glob.glob(self.options.tmpdir + "/node0" + "/regtest/bitcoind.log")[0]):
if text_activation in line:
results += 1
elif text_block2 in line:
results += 1
elif text_block3 in line:
results += 1
return True if results == 3 else False
# wait that everything is written to the log
# try accounting for slower machines by having a large timeout
wait_until(wait_for_log, timeout=120)
text_activation = f"Block {block2_hard.hash} was not activated as best"
text_block2 = "Verify 8000 txins"
text_block3 = "Verify 2000 txins"
for line in open(glob.glob(self.options.tmpdir + "/node0" + "/regtest/bitcoind.log")[0]):
if text_activation in line:
self.log.info(f"block2_hard was not activated as block3_easy won the validation race")
elif text_block2 in line:
line = line.split()
self.log.info(f"block2_hard took {line[len(line) - 1]} to verify")
elif text_block3 in line:
line = line.split()
self.log.info(f"block3_easy took {line[len(line)-1]} to verify")
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
node0.connection.close()
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
block_0=False,
start_block=0,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# adding extra transactions to get different block hashes
block2_hard = self.chain.next_block(block_count,
spend=out[0],
extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count,
spend=out[0],
extra_txns=2)
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count,
spend=out[0],
extra_txns=10)
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
node0.send_message(msg_block(block2_hard))
node1.send_message(msg_block(block4_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
self.log.info(f"easier block3 hash: {block3_easier.hash}")
node2.send_message(msg_block(block3_easier))
self.nodes[0].waitforblockheight(102)
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
def run_test(self):
block_count = 0
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.log.info("Sending blocks to get spendable output")
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
block_0=False,
start_block=0,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
block2 = self.chain.next_block(block_count, spend=out[0], extra_txns=1)
block2_count = block_count
block_count += 1
self.log.info(f"blockA hash: {block2.hash}")
node0.send_message(msg_block(block2))
self.nodes[0].waitforblockheight(102)
block3_hard = self.chain.next_block(block_count,
spend=out[1],
extra_txns=8)
block_count += 1
self.chain.set_tip(block2_count)
block4_easier = self.chain.next_block(block_count,
spend=out[1],
extra_txns=2)
block_count += 1
self.chain.set_tip(block2_count)
block5_hard = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block3 hash: {block3_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block3_hard.hash, "add")
self.log.info(f"hard block5 hash: {block5_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block5_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block3_hard.hash, block5_hard.hash},
self.nodes[0], self.log)
self.log.info(
"Sending blocks 3,4,5 on branch 2 for parallel validation")
node0.send_message(msg_block(block3_hard))
node2.send_message(msg_block(block5_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block3_hard.hash, block5_hard.hash},
self.nodes[0], self.log)
self.log.info(f"easier hash: {block4_easier.hash}")
node1.send_message(msg_block(block4_easier))
self.nodes[0].waitforblockheight(103)
# Because 4 is easy to validate it will be validated first and set as active tip
assert_equal(block4_easier.hash, self.nodes[0].getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
self.nodes[0].waitaftervalidatingblock(block3_hard.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block5_hard.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block4_easier.hash, self.nodes[0].getbestblockhash())
self.log.info("Sending blocks 6,7,8 on competing chain to cause reorg")
self.chain.set_tip(tip_block_num)
block6 = self.chain.next_block(block_count, spend=out[0], extra_txns=2)
block_count += 1
self.log.info(f"block6 hash: {block6.hash}")
node0.send_message(msg_block(block6))
block7 = self.chain.next_block(block_count)
block_count += 1
self.log.info(f"block7: {block7.hash}")
node0.send_message(msg_block(block7))
# send one to cause reorg this should be active
block8 = self.chain.next_block(block_count)
block_count += 1
self.log.info(f"block8: {block8.hash}")
node0.send_message(msg_block(block8))
self.nodes[0].waitforblockheight(104)
assert_equal(block8.hash, self.nodes[0].getbestblockhash())
self.log.info(
"Invalidating block7 on competing chain to reorg to first branch again"
)
self.log.info(f"invalidating hash {block7.hash}")
self.nodes[0].invalidateblock(block7.hash)
#after invalidating, active block should be the one first validated on first branch
assert_equal(block4_easier.hash, self.nodes[0].getbestblockhash())
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, 105, 100)
yield test
# Block with height 107.
block(1, spend=out[0])
yield self.accepted()
# Create block with height 108 (genesis NOT activated).
block(2, spend=out[1])
tx0 = create_transaction(out[2].tx, out[2].n, b"", 100000,
CScript([OP_RETURN]))
self.chain.update_block(2, [tx0])
# \x51 is OP_TRUE
tx1 = create_transaction(tx0, 0, b'\x51', 1, CScript([OP_TRUE]))
b108_rejected = self.chain.update_block(2, [tx1])
self.log.info(
"Created block %s on height %d that tries to spend from block on height %d.",
b108_rejected.hash, self.genesisactivationheight - 1,
self.genesisactivationheight - 1)
yield self.rejected(RejectResult(16,
b'bad-txns-inputs-missingorspent'))
# Rewind bad block (height is 107).
self.chain.set_tip(1)
# Create block on height 108 (genesis NOT activated).
block(3, spend=out[3])
tx0 = create_transaction(out[4].tx, out[4].n, b"", 100000,
CScript([OP_RETURN]))
b108 = self.chain.update_block(3, [tx0])
self.log.info("Created block %s on height %d.", b108.hash,
self.genesisactivationheight - 1)
yield self.accepted()
# Create block on height 109 and try to spend from block on height 108
block(4, spend=out[5])
# \x51 is OP_TRUE
tx1 = create_transaction(tx0, 0, b'\x51', 1, CScript([OP_TRUE]))
b109_rejected = self.chain.update_block(4, [tx1])
self.log.info(
"Created block %s on height %d that tries to spend from block on height %d.",
b109_rejected.hash, self.genesisactivationheight,
self.genesisactivationheight - 1)
yield self.rejected(RejectResult(16,
b'bad-txns-inputs-missingorspent'))
# Rewind bad block (height is 108).
self.chain.set_tip(3)
# Create block on height 109 and try to spend from block on height 109.
block(5, spend=out[6])
tx0 = create_transaction(out[7].tx, out[7].n, b"", 100000,
CScript([OP_RETURN]))
self.chain.update_block(5, [tx0])
# \x51 is OP_TRUE
tx1 = create_transaction(tx0, 0, b'\x51', 1, CScript([OP_TRUE]))
b109_accepted = self.chain.update_block(5, [tx1])
self.log.info(
"Created block %s on height %d that tries to spend from block on height %d.",
b109_accepted.hash, self.genesisactivationheight,
self.genesisactivationheight)
yield self.accepted()
#############
# At this point, we have tx0 and tx1 in cache script marked as valid.
# Now, invalidate blocks 109 and 108 so that we are in state before genesis.
node.invalidateblock(hashToHex(b109_accepted.sha256))
sleep(1)
# tx0 and tx1 are in mempool (currently valid because it was sent after genesis)
assert_equal(True, tx0.hash in node.getrawmempool())
assert_equal(True, tx1.hash in node.getrawmempool())
node.invalidateblock(hashToHex(b108.sha256))
# tx0 and tx1 are not in mempool (mempool is deleted when 108 is invalidated)
assert_equal(False, tx0.hash in node.getrawmempool())
assert_equal(False, tx1.hash in node.getrawmempool())
# So we are at height 107.
assert_equal(node.getblock(node.getbestblockhash())['height'], 107)
self.nodes[0].generate(1)
tx = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['tx']
assert_equal(False, tx0.hash in tx)
assert_equal(False, tx1.hash in tx)
# Now we are at height 108.
assert_equal(node.getblock(node.getbestblockhash())['height'], 108)
def get_tests(self):
# Shorthand for functions
block = self.chain.next_block
# Get proxy with bigger timeout
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
# Create transaction that will almost fill block file when next block will be generated (~130 MB)
tx1 = create_transaction(
out[0].tx, out[0].n, b"", ONE_MEGABYTE * 120,
CScript(
[OP_FALSE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE * 120))]))
self.test.connections[0].send_message(msg_tx(tx1))
# Wait for transaction processing
self.check_mempool(node, [tx1], timeout=6000)
# Mine block with new transaction.
minedBlock1 = node.generate(1)
# Send 4 large (~1GB) transactions that will go into next block
for i in range(4):
txLarge = create_transaction(
out[1 + i].tx, out[1 + i].n, b"", ONE_GIGABYTE,
CScript([
OP_FALSE, OP_RETURN,
bytearray([42] * (ONE_GIGABYTE - ONE_MEGABYTE))
]))
self.test.connections[0].send_message(msg_tx(txLarge))
self.check_mempool(node, [txLarge], timeout=6000)
# Send transaction with size that will overflow 32 bit size
txOverflow = create_transaction(
out[5].tx, out[5].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)
# Mine block with new transactions with size > 4GB. This will write to new block file on disk.
minedBlock2 = node.generate(1)
# Make sure that block is larger than 32 bit max
assert_greater_than(node.getblock(minedBlock2[0], True)['size'], 2**32)
# Generate another transaction for next block
tx2 = create_transaction(
out[10].tx, out[10].n, b"", ONE_MEGABYTE,
CScript([OP_FALSE, OP_RETURN,
bytearray([42] * (ONE_MEGABYTE))]))
self.test.connections[0].send_message(msg_tx(tx2))
self.check_mempool(node, [tx2], timeout=6000)
# Mine block with new transactions. This will write to new block file on disk.
minedBlock3 = node.generate(1)
# Get block count
blockcount = node.getblockcount()
# Restart node with reindex option
self.stop_nodes()
self.extra_args[0].append("-reindex")
self.start_nodes(self.extra_args)
# Get proxy with bigger timeout
node = get_rpc_proxy(self.nodes[0].url,
1,
timeout=6000,
coveragedir=self.nodes[0].coverage_dir)
# Get block count after reindex and compare it to block count before node shutdown - should be equal
while node.getblockcount() < blockcount:
sleep(0.1)
assert_equal(node.getblockcount(), blockcount)
def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
node3 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node3)
node3.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
node3.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
block_0=False,
start_block=0,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
block2 = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3 = self.chain.next_block(block_count,
spend=out[0],
extra_txns=10)
block_count += 1
self.chain.set_tip(tip_block_num)
block4 = self.chain.next_block(block_count,
spend=out[0],
extra_txns=12)
block_count += 1
self.chain.set_tip(tip_block_num)
block5 = self.chain.next_block(block_count,
spend=out[0],
extra_txns=14)
block5_num = block_count
block_count += 1
block6 = self.chain.next_block(block_count, spend=out[1], extra_txns=8)
block_count += 1
self.chain.set_tip(block5_num)
block7 = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
self.log.info(f"block2 hash: {block2.hash}")
self.nodes[0].waitaftervalidatingblock(block2.hash, "add")
self.log.info(f"block3 hash: {block3.hash}")
self.nodes[0].waitaftervalidatingblock(block3.hash, "add")
self.log.info(f"block4 hash: {block4.hash}")
self.nodes[0].waitaftervalidatingblock(block4.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2.hash, block3.hash, block4.hash},
self.nodes[0], self.log)
node0.send_message(msg_block(block2))
# make sure we started validating block2 first as we expect this one to
# be terminated later on in the test before its validation is complete
# (algorithm for premature termination selects based on block height and
# and validation duration - those that are in validation with smaller
# height and longer are terminated first)
wait_for_validating_blocks({block2.hash}, self.nodes[0], self.log)
node1.send_message(msg_block(block3))
node2.send_message(msg_block(block4))
# make sure we started validating blocks
wait_for_validating_blocks({block2.hash, block3.hash, block4.hash},
self.nodes[0], self.log)
node3.send_message(msg_block(block5))
self.log.info(f"block5 hash: {block5.hash}")
# check log file for logging about which block validation was terminated
termination_log_found = False
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if f"Block {block2.hash} will not be considered by the current tip activation as the maximum parallel block" in line:
termination_log_found = True
self.log.info("Found line: %s", line.strip())
break
self.log.info(f"block6 hash: {block6.hash}")
self.nodes[0].waitaftervalidatingblock(block6.hash, "add")
self.log.info(f"block7 hash: {block7.hash}")
self.nodes[0].waitaftervalidatingblock(block7.hash, "add")
wait_for_waiting_blocks({block6.hash, block7.hash}, self.nodes[0],
self.log)
node3.send_message(msg_block(block6))
wait_for_validating_blocks({block6.hash}, self.nodes[0], self.log)
node3.send_message(msg_block(block7))
wait_for_validating_blocks({block7.hash}, self.nodes[0], self.log)
self.nodes[0].waitaftervalidatingblock(block2.hash, "remove")
# block2 should be canceled.
wait_for_not_validating_blocks({block2.hash}, self.nodes[0], self.log)
self.log.info("removing wait status from block7")
self.nodes[0].waitaftervalidatingblock(block7.hash, "remove")
# finish block7 validation
wait_for_not_validating_blocks({block7.hash}, self.nodes[0], self.log)
# remove wait status from block to finish its validations so the test exits properly
self.nodes[0].waitaftervalidatingblock(block3.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block4.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block6.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# block7 should be active in the end
assert_equal(block7.hash, self.nodes[0].getbestblockhash())
# check log file for logging about which block validation was terminated
termination_log_found = False
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if f"Block {block2.hash} validation was terminated before completion." in line:
termination_log_found = True
self.log.info("Found line: %s", line.strip())
break
assert_equal(termination_log_found, True)