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[qa] Rewrite BIP65 functional tests
After 122786d0e0, BIP65 activates at
a particular height (without regard to version numbers of blocks
below that height). Rewrite the BIP65 functional tests to take
this into account, and add a test case that exercises
OP_CHECKLOCKTIMEVERIFY in a block where the soft-fork is active.
Also moves the bip65 functional test out of the extended test suite.
This commit is contained in:
Suhas Daftuar
parent
d4e551adfe
commit
d4f0d87b6f
@ -4,173 +4,162 @@
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test BIP65 (CHECKLOCKTIMEVERIFY).
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Connect to a single node.
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Mine 2 (version 3) blocks (save the coinbases for later).
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Generate 98 more version 3 blocks, verify the node accepts.
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Mine 749 version 4 blocks, verify the node accepts.
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Check that the new CLTV rules are not enforced on the 750th version 4 block.
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Check that the new CLTV rules are enforced on the 751st version 4 block.
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Mine 199 new version blocks.
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Mine 1 old-version block.
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Mine 1 new version block.
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Mine 1 old version block, see that the node rejects.
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Test that the CHECKLOCKTIMEVERIFY soft-fork activates at (regtest) block height
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1351.
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"""
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from test_framework.test_framework import ComparisonTestFramework
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from test_framework.mininode import CTransaction, NetworkThread
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from test_framework.mininode import *
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from test_framework.blocktools import create_coinbase, create_block
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from test_framework.comptool import TestInstance, TestManager
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from test_framework.script import CScript, OP_1NEGATE, OP_CHECKLOCKTIMEVERIFY, OP_DROP
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from test_framework.script import CScript, OP_1NEGATE, OP_CHECKLOCKTIMEVERIFY, OP_DROP, CScriptNum
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from io import BytesIO
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import time
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CLTV_HEIGHT = 1351
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# Reject codes that we might receive in this test
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REJECT_INVALID = 16
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REJECT_OBSOLETE = 17
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REJECT_NONSTANDARD = 64
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def cltv_invalidate(tx):
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'''Modify the signature in vin 0 of the tx to fail CLTV
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Prepends -1 CLTV DROP in the scriptSig itself.
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TODO: test more ways that transactions using CLTV could be invalid (eg
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locktime requirements fail, sequence time requirements fail, etc).
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'''
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tx.vin[0].scriptSig = CScript([OP_1NEGATE, OP_CHECKLOCKTIMEVERIFY, OP_DROP] +
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list(CScript(tx.vin[0].scriptSig)))
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def cltv_validate(node, tx, height):
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'''Modify the signature in vin 0 of the tx to pass CLTV
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Prepends <height> CLTV DROP in the scriptSig, and sets
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the locktime to height'''
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tx.vin[0].nSequence = 0
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tx.nLockTime = height
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class BIP65Test(ComparisonTestFramework):
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# Need to re-sign, since nSequence and nLockTime changed
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signed_result = node.signrawtransaction(ToHex(tx))
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new_tx = CTransaction()
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new_tx.deserialize(BytesIO(hex_str_to_bytes(signed_result['hex'])))
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new_tx.vin[0].scriptSig = CScript([CScriptNum(height), OP_CHECKLOCKTIMEVERIFY, OP_DROP] +
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list(CScript(new_tx.vin[0].scriptSig)))
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return new_tx
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def create_transaction(node, coinbase, to_address, amount):
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from_txid = node.getblock(coinbase)['tx'][0]
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inputs = [{ "txid" : from_txid, "vout" : 0}]
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outputs = { to_address : amount }
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rawtx = node.createrawtransaction(inputs, outputs)
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signresult = node.signrawtransaction(rawtx)
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tx = CTransaction()
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tx.deserialize(BytesIO(hex_str_to_bytes(signresult['hex'])))
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return tx
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class BIP65Test(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.num_nodes = 1
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self.extra_args = [['-whitelist=127.0.0.1', '-blockversion=3']]
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self.extra_args = [['-promiscuousmempoolflags=1', '-whitelist=127.0.0.1']]
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self.setup_clean_chain = True
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def run_test(self):
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test = TestManager(self, self.options.tmpdir)
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test.add_all_connections(self.nodes)
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node0 = NodeConnCB()
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connections = []
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connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
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node0.add_connection(connections[0])
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NetworkThread().start() # Start up network handling in another thread
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test.run()
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def create_transaction(self, node, coinbase, to_address, amount):
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from_txid = node.getblock(coinbase)['tx'][0]
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inputs = [{ "txid" : from_txid, "vout" : 0}]
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outputs = { to_address : amount }
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rawtx = node.createrawtransaction(inputs, outputs)
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signresult = node.signrawtransaction(rawtx)
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tx = CTransaction()
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f = BytesIO(hex_str_to_bytes(signresult['hex']))
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tx.deserialize(f)
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return tx
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# wait_for_verack ensures that the P2P connection is fully up.
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node0.wait_for_verack()
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def get_tests(self):
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self.coinbase_blocks = self.nodes[0].generate(2)
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height = 3 # height of the next block to build
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self.tip = int("0x" + self.nodes[0].getbestblockhash(), 0)
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self.log.info("Mining %d blocks", CLTV_HEIGHT - 2)
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self.coinbase_blocks = self.nodes[0].generate(CLTV_HEIGHT - 2)
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self.nodeaddress = self.nodes[0].getnewaddress()
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self.last_block_time = int(time.time())
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''' 398 more version 3 blocks '''
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test_blocks = []
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for i in range(398):
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 3
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block.rehash()
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block.solve()
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test_blocks.append([block, True])
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance(test_blocks, sync_every_block=False)
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self.log.info("Test that an invalid-according-to-CLTV transaction can still appear in a block")
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''' Mine 749 version 4 blocks '''
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test_blocks = []
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for i in range(749):
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 4
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block.rehash()
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block.solve()
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test_blocks.append([block, True])
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance(test_blocks, sync_every_block=False)
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'''
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Check that the new CLTV rules are not enforced in the 750th
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version 3 block.
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'''
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spendtx = self.create_transaction(self.nodes[0],
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self.coinbase_blocks[0], self.nodeaddress, 1.0)
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spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[0],
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self.nodeaddress, 1.0)
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cltv_invalidate(spendtx)
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spendtx.rehash()
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 4
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tip = self.nodes[0].getbestblockhash()
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block_time = self.nodes[0].getblockheader(tip)['mediantime'] + 1
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block = create_block(int(tip, 16), create_coinbase(CLTV_HEIGHT - 1), block_time)
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block.nVersion = 3
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block.vtx.append(spendtx)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.rehash()
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block.solve()
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance([[block, True]])
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node0.send_and_ping(msg_block(block))
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assert_equal(self.nodes[0].getbestblockhash(), block.hash)
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''' Mine 199 new version blocks on last valid tip '''
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test_blocks = []
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for i in range(199):
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 4
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block.rehash()
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block.solve()
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test_blocks.append([block, True])
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance(test_blocks, sync_every_block=False)
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''' Mine 1 old version block '''
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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self.log.info("Test that blocks must now be at least version 4")
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tip = block.sha256
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block_time += 1
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block = create_block(tip, create_coinbase(CLTV_HEIGHT), block_time)
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block.nVersion = 3
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block.rehash()
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block.solve()
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance([[block, True]])
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node0.send_and_ping(msg_block(block))
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
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''' Mine 1 new version block '''
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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assert wait_until(lambda: "reject" in node0.last_message.keys())
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with mininode_lock:
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assert_equal(node0.last_message["reject"].code, REJECT_OBSOLETE)
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assert_equal(node0.last_message["reject"].reason, b'bad-version(0x00000003)')
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assert_equal(node0.last_message["reject"].data, block.sha256)
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del node0.last_message["reject"]
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self.log.info("Test that invalid-according-to-cltv transactions cannot appear in a block")
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block.nVersion = 4
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block.rehash()
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block.solve()
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self.last_block_time += 1
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self.tip = block.sha256
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height += 1
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yield TestInstance([[block, True]])
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'''
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Check that the new CLTV rules are enforced in the 951st version 4
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block.
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'''
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spendtx = self.create_transaction(self.nodes[0],
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self.coinbase_blocks[1], self.nodeaddress, 1.0)
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spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[1],
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self.nodeaddress, 1.0)
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cltv_invalidate(spendtx)
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spendtx.rehash()
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 4
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# First we show that this tx is valid except for CLTV by getting it
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# accepted to the mempool (which we can achieve with
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# -promiscuousmempoolflags).
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node0.send_and_ping(msg_tx(spendtx))
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assert spendtx.hash in self.nodes[0].getrawmempool()
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# Now we verify that a block with this transaction is invalid.
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block.vtx.append(spendtx)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.rehash()
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block.solve()
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self.last_block_time += 1
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yield TestInstance([[block, False]])
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''' Mine 1 old version block, should be invalid '''
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block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
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block.nVersion = 3
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block.rehash()
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node0.send_and_ping(msg_block(block))
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
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assert wait_until (lambda: "reject" in node0.last_message.keys())
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with mininode_lock:
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assert node0.last_message["reject"].code in [REJECT_INVALID, REJECT_NONSTANDARD]
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assert_equal(node0.last_message["reject"].data, block.sha256)
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if node0.last_message["reject"].code == REJECT_INVALID:
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# Generic rejection when a block is invalid
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assert_equal(node0.last_message["reject"].reason, b'block-validation-failed')
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else:
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assert b'Negative locktime' in node0.last_message["reject"].reason
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self.log.info("Test that a version 4 block with a valid-according-to-CLTV transaction is accepted")
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spendtx = cltv_validate(self.nodes[0], spendtx, CLTV_HEIGHT - 1)
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spendtx.rehash()
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block.vtx.pop(1)
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block.vtx.append(spendtx)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.solve()
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self.last_block_time += 1
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yield TestInstance([[block, False]])
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node0.send_and_ping(msg_block(block))
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
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if __name__ == '__main__':
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BIP65Test().main()
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@ -1,82 +0,0 @@
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#!/usr/bin/env python3
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# Copyright (c) 2015-2016 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test the CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic."""
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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class BIP65Test(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.num_nodes = 3
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self.setup_clean_chain = False
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self.extra_args = [[], ["-blockversion=3"], ["-blockversion=4"]]
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def setup_network(self):
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self.setup_nodes()
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connect_nodes(self.nodes[1], 0)
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connect_nodes(self.nodes[2], 0)
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self.sync_all()
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def run_test(self):
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cnt = self.nodes[0].getblockcount()
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# Mine some old-version blocks
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self.nodes[1].generate(200)
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cnt += 100
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 100):
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raise AssertionError("Failed to mine 100 version=3 blocks")
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# Mine 750 new-version blocks
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for i in range(15):
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self.nodes[2].generate(50)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 850):
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raise AssertionError("Failed to mine 750 version=4 blocks")
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# TODO: check that new CHECKLOCKTIMEVERIFY rules are not enforced
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# Mine 1 new-version block
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self.nodes[2].generate(1)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 851):
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raise AssertionError("Failed to mine a version=4 blocks")
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# TODO: check that new CHECKLOCKTIMEVERIFY rules are enforced
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# Mine 198 new-version blocks
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for i in range(2):
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self.nodes[2].generate(99)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 1049):
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raise AssertionError("Failed to mine 198 version=4 blocks")
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# Mine 1 old-version block
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self.nodes[1].generate(1)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 1050):
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raise AssertionError("Failed to mine a version=3 block after 949 version=4 blocks")
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# Mine 1 new-version blocks
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self.nodes[2].generate(1)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 1051):
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raise AssertionError("Failed to mine a version=4 block")
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# Mine 1 old-version blocks. This should fail
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assert_raises_jsonrpc(-1,"CreateNewBlock: TestBlockValidity failed: bad-version(0x00000003)", self.nodes[1].generate, 1)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 1051):
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raise AssertionError("Accepted a version=3 block after 950 version=4 blocks")
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# Mine 1 new-version blocks
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self.nodes[2].generate(1)
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self.sync_all()
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if (self.nodes[0].getblockcount() != cnt + 1052):
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raise AssertionError("Failed to mine a version=4 block")
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if __name__ == '__main__':
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BIP65Test().main()
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@ -113,6 +113,7 @@ BASE_SCRIPTS= [
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'listsinceblock.py',
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'p2p-leaktests.py',
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'wallet-encryption.py',
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'bip65-cltv-p2p.py',
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'uptime.py',
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]
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@ -136,8 +137,6 @@ EXTENDED_SCRIPTS = [
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'rpcbind_test.py',
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# vv Tests less than 30s vv
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'assumevalid.py',
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'bip65-cltv.py',
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'bip65-cltv-p2p.py',
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'bipdersig-p2p.py',
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'bipdersig.py',
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'example_test.py',
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