f66e1c793e
44bbceeef1[Tests] Cleanup feature_block.py, remove unnecessary PreviousSpendableOutput object (Conor Scott)736f941424[Tests] Cleanup extra instances of create_transaction (Conor Scott)157651855f[Tests] Rename create_tx and move to blocktools.py (Conor Scott) Pull request description: There currently exist seven ([1](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_cltv.py#L52-L60), [2](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_csv_activation.py#L88-L95) [3](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_dersig.py#L40-L48), [4](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_nulldummy.py#L100-L108), [5](https://github.com/bitcoin/bitcoin/blob/master/test/functional/test_framework/util.py#L529-L535), [6](https://github.com/bitcoin/bitcoin/blob/master/test/functional/test_framework/blocktools.py#L120-L129), [7](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_block.py#L1218-L1220)) implementations of a function called something similar to `create_transaction` in the functional tests, some of which are exact copies of each other. This PR aims to clean this up into [three different cases implemented in blocktools.py](https://github.com/conscott/bitcoin/blob/create_tx_cleanup/test/functional/test_framework/blocktools.py#L121-L149) 1. `create_tx_with_script`: Return transaction object spending generic tx output optionally specifying scriptSig and scriptPubKey 2. `create_transaction`: Return transaction object spending coinbase tx 2. `create_raw_transaction`: Return raw transaction (hex string) spending coinbase tx I am not committed to any of these function names, so I'll gladly take suggestions on there. Additionally there are some related cleanups to feature_block.py tests, specifically removing the [PreviousSpendableOutput](https://github.com/conscott/bitcoin/blob/master/test/functional/feature_block.py#L51-L54) object, which seems like an unnecessary layer given that every instance spends the 0 output. Tree-SHA512: 63c6233b6f0942c81ba1ca67ea6770809b8c9409314c6d4cf8e5a3991cb9ee92b22bebe88c0dde45cd71e754eb351230c4c404b70ff118f5f43c034452ada65c
99 lines
3.7 KiB
Python
Executable file
99 lines
3.7 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# Copyright (c) 2015-2018 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
"""Test node responses to invalid blocks.
|
|
|
|
In this test we connect to one node over p2p, and test block requests:
|
|
1) Valid blocks should be requested and become chain tip.
|
|
2) Invalid block with duplicated transaction should be re-requested.
|
|
3) Invalid block with bad coinbase value should be rejected and not
|
|
re-requested.
|
|
"""
|
|
import copy
|
|
|
|
from test_framework.blocktools import create_block, create_coinbase, create_tx_with_script
|
|
from test_framework.messages import COIN
|
|
from test_framework.mininode import P2PDataStore
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal
|
|
|
|
class InvalidBlockRequestTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
self.setup_clean_chain = True
|
|
self.extra_args = [["-whitelist=127.0.0.1"]]
|
|
|
|
def run_test(self):
|
|
# Add p2p connection to node0
|
|
node = self.nodes[0] # convenience reference to the node
|
|
node.add_p2p_connection(P2PDataStore())
|
|
|
|
best_block = node.getblock(node.getbestblockhash())
|
|
tip = int(node.getbestblockhash(), 16)
|
|
height = best_block["height"] + 1
|
|
block_time = best_block["time"] + 1
|
|
|
|
self.log.info("Create a new block with an anyone-can-spend coinbase")
|
|
|
|
height = 1
|
|
block = create_block(tip, create_coinbase(height), block_time)
|
|
block.solve()
|
|
# Save the coinbase for later
|
|
block1 = block
|
|
tip = block.sha256
|
|
node.p2p.send_blocks_and_test([block1], node, True)
|
|
|
|
self.log.info("Mature the block.")
|
|
node.generate(100)
|
|
|
|
best_block = node.getblock(node.getbestblockhash())
|
|
tip = int(node.getbestblockhash(), 16)
|
|
height = best_block["height"] + 1
|
|
block_time = best_block["time"] + 1
|
|
|
|
# Use merkle-root malleability to generate an invalid block with
|
|
# same blockheader.
|
|
# Manufacture a block with 3 transactions (coinbase, spend of prior
|
|
# coinbase, spend of that spend). Duplicate the 3rd transaction to
|
|
# leave merkle root and blockheader unchanged but invalidate the block.
|
|
self.log.info("Test merkle root malleability.")
|
|
|
|
block2 = create_block(tip, create_coinbase(height), block_time)
|
|
block_time += 1
|
|
|
|
# b'0x51' is OP_TRUE
|
|
tx1 = create_tx_with_script(block1.vtx[0], 0, script_sig=b'\x51', amount=50 * COIN)
|
|
tx2 = create_tx_with_script(tx1, 0, script_sig=b'\x51', amount=50 * COIN)
|
|
|
|
block2.vtx.extend([tx1, tx2])
|
|
block2.hashMerkleRoot = block2.calc_merkle_root()
|
|
block2.rehash()
|
|
block2.solve()
|
|
orig_hash = block2.sha256
|
|
block2_orig = copy.deepcopy(block2)
|
|
|
|
# Mutate block 2
|
|
block2.vtx.append(tx2)
|
|
assert_equal(block2.hashMerkleRoot, block2.calc_merkle_root())
|
|
assert_equal(orig_hash, block2.rehash())
|
|
assert(block2_orig.vtx != block2.vtx)
|
|
|
|
node.p2p.send_blocks_and_test([block2], node, False, False, 16, b'bad-txns-duplicate')
|
|
|
|
self.log.info("Test very broken block.")
|
|
|
|
block3 = create_block(tip, create_coinbase(height), block_time)
|
|
block_time += 1
|
|
block3.vtx[0].vout[0].nValue = 100 * COIN # Too high!
|
|
block3.vtx[0].sha256 = None
|
|
block3.vtx[0].calc_sha256()
|
|
block3.hashMerkleRoot = block3.calc_merkle_root()
|
|
block3.rehash()
|
|
block3.solve()
|
|
|
|
node.p2p.send_blocks_and_test([block3], node, False, False, 16, b'bad-cb-amount')
|
|
|
|
if __name__ == '__main__':
|
|
InvalidBlockRequestTest().main()
|