dash/test/functional/mining_basic.py

224 lines
10 KiB
Python
Raw Normal View History

#!/usr/bin/env python3
# Copyright (c) 2014-2016 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 mining RPCs
- getmininginfo
- getblocktemplate proposal mode
- submitblock"""
import copy
from decimal import Decimal
from test_framework.blocktools import create_coinbase
from test_framework.messages import (
CBlock,
CBlockHeader,
)
from test_framework.mininode import (
P2PDataStore,
)
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
)
from test_framework.script import CScriptNum
def assert_template(node, block, expect, rehash=True):
if rehash:
block.hashMerkleRoot = block.calc_merkle_root()
2021-08-27 21:03:02 +02:00
rsp = node.getblocktemplate(template_request={'data': block.serialize().hex(), 'mode': 'proposal'})
assert_equal(rsp, expect)
class MiningTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
self.setup_clean_chain = False
def run_test(self):
node = self.nodes[0]
self.log.info('getmininginfo')
mining_info = node.getmininginfo()
assert_equal(mining_info['blocks'], 200)
assert_equal(mining_info['chain'], self.chain)
assert_equal(mining_info['currentblocksize'], 0)
assert_equal(mining_info['currentblocktx'], 0)
assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
2019-09-24 10:42:38 +02:00
assert_equal(mining_info['networkhashps'], Decimal('0.01282051282051282'))
assert_equal(mining_info['pooledtx'], 0)
# Mine a block to leave initial block download
node.generate(1)
tmpl = node.getblocktemplate()
self.log.info("getblocktemplate: Test capability advertised")
assert 'proposal' in tmpl['capabilities']
assert 'coinbasetxn' not in tmpl
next_height = int(tmpl["height"])
coinbase_tx = create_coinbase(height=next_height)
# sequence numbers must not be max for nLockTime to have effect
coinbase_tx.vin[0].nSequence = 2 ** 32 - 2
coinbase_tx.rehash()
# round-trip the encoded bip34 block height commitment
assert_equal(CScriptNum.decode(coinbase_tx.vin[0].scriptSig), next_height)
# round-trip negative and multi-byte CScriptNums to catch python regression
assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(1500))), 1500)
assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(-1500))), -1500)
assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(-1))), -1)
block = CBlock()
block.nVersion = tmpl["version"]
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
block.nTime = tmpl["curtime"]
block.nBits = int(tmpl["bits"], 16)
block.nNonce = 0
block.vtx = [coinbase_tx]
self.log.info("getblocktemplate: Test valid block")
assert_template(node, block, None)
self.log.info("submitblock: Test block decode failure")
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-22, "Block decode failed", node.submitblock, block.serialize()[:-15].hex())
self.log.info("getblocktemplate: Test bad input hash for coinbase transaction")
bad_block = copy.deepcopy(block)
bad_block.vtx[0].vin[0].prevout.hash += 1
bad_block.vtx[0].rehash()
assert_template(node, bad_block, 'bad-cb-missing')
self.log.info("submitblock: Test invalid coinbase transaction")
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-22, "Block does not start with a coinbase", node.submitblock, bad_block.serialize().hex())
self.log.info("getblocktemplate: Test truncated final transaction")
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {'data': block.serialize()[:-1].hex(), 'mode': 'proposal'})
self.log.info("getblocktemplate: Test duplicate transaction")
bad_block = copy.deepcopy(block)
bad_block.vtx.append(bad_block.vtx[0])
assert_template(node, bad_block, 'bad-txns-duplicate')
self.log.info("getblocktemplate: Test invalid transaction")
bad_block = copy.deepcopy(block)
bad_tx = copy.deepcopy(bad_block.vtx[0])
bad_tx.vin[0].prevout.hash = 255
bad_tx.rehash()
bad_block.vtx.append(bad_tx)
assert_template(node, bad_block, 'bad-txns-inputs-missingorspent')
self.log.info("getblocktemplate: Test nonfinal transaction")
bad_block = copy.deepcopy(block)
bad_block.vtx[0].nLockTime = 2 ** 32 - 1
bad_block.vtx[0].rehash()
assert_template(node, bad_block, 'bad-txns-nonfinal')
self.log.info("getblocktemplate: Test bad tx count")
# The tx count is immediately after the block header
TX_COUNT_OFFSET = 80
bad_block_sn = bytearray(block.serialize())
assert_equal(bad_block_sn[TX_COUNT_OFFSET], 1)
bad_block_sn[TX_COUNT_OFFSET] += 1
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {'data': bad_block_sn.hex(), 'mode': 'proposal'})
self.log.info("getblocktemplate: Test bad bits")
bad_block = copy.deepcopy(block)
bad_block.nBits = 469762303 # impossible in the real world
assert_template(node, bad_block, 'bad-diffbits')
self.log.info("getblocktemplate: Test bad merkle root")
bad_block = copy.deepcopy(block)
bad_block.hashMerkleRoot += 1
assert_template(node, bad_block, 'bad-txnmrklroot', False)
self.log.info("getblocktemplate: Test bad timestamps")
bad_block = copy.deepcopy(block)
bad_block.nTime = 2 ** 31 - 1
assert_template(node, bad_block, 'time-too-new')
bad_block.nTime = 0
assert_template(node, bad_block, 'time-too-old')
self.log.info("getblocktemplate: Test not best block")
bad_block = copy.deepcopy(block)
bad_block.hashPrevBlock = 123
assert_template(node, bad_block, 'inconclusive-not-best-prevblk')
self.log.info('submitheader tests')
assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='xx' * 80))
assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='ff' * 78))
assert_raises_rpc_error(-25, 'Must submit previous header', lambda: node.submitheader(hexdata='ff' * 80))
block.solve()
def filter_tip_keys(chaintips):
"""
Dash chaintips rpc returns extra info in each tip (difficulty, chainwork, and
forkpoint). Filter down to relevant ones checked in this test.
"""
check_keys = ["hash", "height", "branchlen", "status"]
filtered_tips = []
for tip in chaintips:
filtered_tips.append({k: tip[k] for k in check_keys})
return filtered_tips
def chain_tip(b_hash, *, status='headers-only', branchlen=1):
return {'hash': b_hash, 'height': 202, 'branchlen': branchlen, 'status': status}
assert chain_tip(block.hash) not in filter_tip_keys(node.getchaintips())
2021-08-27 21:03:02 +02:00
node.submitheader(hexdata=block.serialize().hex())
assert chain_tip(block.hash) in filter_tip_keys(node.getchaintips())
2021-08-27 21:03:02 +02:00
node.submitheader(hexdata=CBlockHeader(block).serialize().hex()) # Noop
assert chain_tip(block.hash) in filter_tip_keys(node.getchaintips())
bad_block_root = copy.deepcopy(block)
bad_block_root.hashMerkleRoot += 2
bad_block_root.solve()
assert chain_tip(bad_block_root.hash) not in filter_tip_keys(node.getchaintips())
2021-08-27 21:03:02 +02:00
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
# Should still reject invalid blocks, even if we have the header:
2021-08-27 21:03:02 +02:00
assert_equal(node.submitblock(hexdata=bad_block_root.serialize().hex()), 'invalid')
assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
# We know the header for this invalid block, so should just return early without error:
2021-08-27 21:03:02 +02:00
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
bad_block_lock = copy.deepcopy(block)
bad_block_lock.vtx[0].nLockTime = 2**32 - 1
bad_block_lock.vtx[0].rehash()
bad_block_lock.hashMerkleRoot = bad_block_lock.calc_merkle_root()
bad_block_lock.solve()
2021-08-27 21:03:02 +02:00
assert_equal(node.submitblock(hexdata=bad_block_lock.serialize().hex()), 'invalid')
# Build a "good" block on top of the submitted bad block
bad_block2 = copy.deepcopy(block)
bad_block2.hashPrevBlock = bad_block_lock.sha256
bad_block2.solve()
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
# Should reject invalid header right away
bad_block_time = copy.deepcopy(block)
bad_block_time.nTime = 1
bad_block_time.solve()
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
# Should ask for the block from a p2p node, if they announce the header as well:
node.add_p2p_connection(P2PDataStore())
node.p2p.wait_for_getheaders(timeout=5) # Drop the first getheaders
node.p2p.send_blocks_and_test(blocks=[block], node=node)
# Must be active now:
assert chain_tip(block.hash, status='active', branchlen=0) in filter_tip_keys(node.getchaintips())
# Building a few blocks should give the same results
node.generate(10)
2021-08-27 21:03:02 +02:00
assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
node.submitheader(hexdata=CBlockHeader(block).serialize().hex())
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
if __name__ == '__main__':
MiningTest().main()