You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
4.9 KiB
124 lines
4.9 KiB
#!/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 |
|
|
|
- getblocktemplate proposal mode |
|
- submitblock""" |
|
|
|
from binascii import b2a_hex |
|
import copy |
|
|
|
from test_framework.blocktools import create_coinbase |
|
from test_framework.test_framework import BitcoinTestFramework |
|
from test_framework.mininode import CBlock |
|
from test_framework.util import * |
|
|
|
def b2x(b): |
|
return b2a_hex(b).decode('ascii') |
|
|
|
def assert_template(node, block, expect, rehash=True): |
|
if rehash: |
|
block.hashMerkleRoot = block.calc_merkle_root() |
|
rsp = node.getblocktemplate({'data': b2x(block.serialize()), 'mode': 'proposal'}) |
|
assert_equal(rsp, expect) |
|
|
|
class MiningTest(BitcoinTestFramework): |
|
|
|
def __init__(self): |
|
super().__init__() |
|
self.num_nodes = 2 |
|
self.setup_clean_chain = False |
|
|
|
def run_test(self): |
|
node = self.nodes[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 |
|
|
|
coinbase_tx = create_coinbase(height=int(tmpl["height"]) + 1) |
|
# sequence numbers must not be max for nLockTime to have effect |
|
coinbase_tx.vin[0].nSequence = 2 ** 32 - 2 |
|
coinbase_tx.rehash() |
|
|
|
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") |
|
assert_raises_jsonrpc(-22, "Block decode failed", node.submitblock, b2x(block.serialize()[:-15])) |
|
|
|
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") |
|
assert_raises_jsonrpc(-22, "Block does not start with a coinbase", node.submitblock, b2x(bad_block.serialize())) |
|
|
|
self.log.info("getblocktemplate: Test truncated final transaction") |
|
assert_raises_jsonrpc(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(block.serialize()[:-1]), '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 |
|
assert_raises_jsonrpc(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(bad_block_sn), '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') |
|
|
|
if __name__ == '__main__': |
|
MiningTest().main()
|
|
|