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f34889dcf4
d5800da5199527a366024bc80cad7fcca17d5c4a [test] Remove final references to mininode (John Newbery) 5e8df3312e47a73e747ee892face55ed9ababeea test: resort imports (John Newbery) 85165d4332b0f72d30e0c584b476249b542338e6 scripted-diff: Rename mininode to p2p (John Newbery) 9e2897d020b114a10c860f90c5405be029afddba scripted-diff: Rename mininode_lock to p2p_lock (John Newbery) Pull request description: New contributors are often confused by the terminology in the test framework, and what the difference between a _node_ and a _peer_ is. To summarize: - a 'node' is a bitcoind instance. This is the thing whose behavior is being tested. Each bitcoind node is managed by a python `TestNode` object which is used to start/stop the node, manage the node's data directory, read state about the node (eg process status, log file), and interact with the node over different interfaces. - one of the interfaces that we can use to interact with the node is the p2p interface. Each connection to a node using this interface is managed by a python `P2PInterface` or derived object (which is owned by the `TestNode` object). We can open zero, one or many p2p connections to each bitcoind node. The node sees these connections as 'peers'. For historic reasons, the word 'mininode' has been used to refer to those p2p interface objects that we use to connect to the bitcoind node (the code was originally taken from the 'mini-node' branch of https://github.com/jgarzik/pynode/tree/mini-node). However that name has proved to be confusing for new contributors, so rename the remaining references. ACKs for top commit: amitiuttarwar: ACK d5800da519 MarcoFalke: ACK d5800da5199527a366024bc80cad7fcca17d5c4a 🚞 Tree-SHA512: 2c46c2ac3c4278b6e3c647cfd8108428a41e80788fc4f0e386e5b0c47675bc687d94779496c09a3e5ea1319617295be10c422adeeff2d2bd68378e00e0eeb5de
256 lines
12 KiB
Python
Executable File
256 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2020 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 mining RPCs
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- getmininginfo
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- getblocktemplate proposal mode
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- submitblock"""
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import copy
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from decimal import Decimal
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from test_framework.blocktools import (
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create_coinbase,
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)
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from test_framework.messages import (
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CBlock,
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CBlockHeader,
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BLOCK_HEADER_SIZE,
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)
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from test_framework.p2p import P2PDataStore
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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assert_raises_rpc_error,
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)
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def assert_template(node, block, expect, rehash=True):
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if rehash:
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block.hashMerkleRoot = block.calc_merkle_root()
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rsp = node.getblocktemplate(template_request={
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'data': block.serialize().hex(),
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'mode': 'proposal',
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})
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assert_equal(rsp, expect)
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class MiningTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 2
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self.setup_clean_chain = True
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self.supports_cli = False
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def mine_chain(self):
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self.log.info('Create some old blocks')
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for _ in range(200):
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self.bump_mocktime(156)
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self.nodes[0].generate(1)
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mining_info = self.nodes[0].getmininginfo()
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assert_equal(mining_info['blocks'], 200)
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assert_equal(mining_info['currentblocktx'], 0)
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assert_equal(mining_info['currentblocksize'], 1000)
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self.restart_node(0)
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self.connect_nodes(0, 1)
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self.connect_nodes(1, 0)
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def run_test(self):
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self.mine_chain()
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node = self.nodes[0]
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def assert_submitblock(block, result_str_1, result_str_2=None):
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block.solve()
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result_str_2 = result_str_2 or 'duplicate-invalid'
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assert_equal(result_str_1, node.submitblock(hexdata=block.serialize().hex()))
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assert_equal(result_str_2, node.submitblock(hexdata=block.serialize().hex()))
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self.log.info('getmininginfo')
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mining_info = node.getmininginfo()
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assert_equal(mining_info['blocks'], 200)
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assert_equal(mining_info['chain'], self.chain)
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assert 'currentblocksize' not in mining_info
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assert 'currentblocktx' not in mining_info
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assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
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assert_equal(mining_info['networkhashps'], Decimal('0.01282051282051282'))
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assert_equal(mining_info['pooledtx'], 0)
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# Mine a block to leave initial block download
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node.generatetoaddress(1, node.get_deterministic_priv_key().address)
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tmpl = node.getblocktemplate()
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self.log.info("getblocktemplate: Test capability advertised")
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assert 'proposal' in tmpl['capabilities']
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assert 'coinbasetxn' not in tmpl
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next_height = int(tmpl["height"])
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coinbase_tx = create_coinbase(height=next_height)
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# sequence numbers must not be max for nLockTime to have effect
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coinbase_tx.vin[0].nSequence = 2**32 - 2
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coinbase_tx.rehash()
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block = CBlock()
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block.nVersion = tmpl["version"]
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block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
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block.nTime = tmpl["curtime"]
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block.nBits = int(tmpl["bits"], 16)
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block.nNonce = 0
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block.vtx = [coinbase_tx]
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self.log.info("getblocktemplate: Test valid block")
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assert_template(node, block, None)
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self.log.info("submitblock: Test block decode failure")
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assert_raises_rpc_error(-22, "Block decode failed", node.submitblock, block.serialize()[:-15].hex())
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self.log.info("getblocktemplate: Test bad input hash for coinbase transaction")
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bad_block = copy.deepcopy(block)
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bad_block.vtx[0].vin[0].prevout.hash += 1
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bad_block.vtx[0].rehash()
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assert_template(node, bad_block, 'bad-cb-missing')
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self.log.info("submitblock: Test invalid coinbase transaction")
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assert_raises_rpc_error(-22, "Block does not start with a coinbase", node.submitblock, bad_block.serialize().hex())
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self.log.info("getblocktemplate: Test truncated final transaction")
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assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {
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'data': block.serialize()[:-1].hex(),
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'mode': 'proposal',
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})
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self.log.info("getblocktemplate: Test duplicate transaction")
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bad_block = copy.deepcopy(block)
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bad_block.vtx.append(bad_block.vtx[0])
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assert_template(node, bad_block, 'bad-txns-duplicate')
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assert_submitblock(bad_block, 'bad-txns-duplicate', 'bad-txns-duplicate')
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self.log.info("getblocktemplate: Test invalid transaction")
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bad_block = copy.deepcopy(block)
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bad_tx = copy.deepcopy(bad_block.vtx[0])
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bad_tx.vin[0].prevout.hash = 255
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bad_tx.rehash()
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bad_block.vtx.append(bad_tx)
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assert_template(node, bad_block, 'bad-txns-inputs-missingorspent')
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assert_submitblock(bad_block, 'bad-txns-inputs-missingorspent')
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self.log.info("getblocktemplate: Test nonfinal transaction")
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bad_block = copy.deepcopy(block)
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bad_block.vtx[0].nLockTime = 2**32 - 1
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bad_block.vtx[0].rehash()
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assert_template(node, bad_block, 'bad-txns-nonfinal')
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assert_submitblock(bad_block, 'bad-txns-nonfinal')
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self.log.info("getblocktemplate: Test bad tx count")
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# The tx count is immediately after the block header
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bad_block_sn = bytearray(block.serialize())
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assert_equal(bad_block_sn[BLOCK_HEADER_SIZE], 1)
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bad_block_sn[BLOCK_HEADER_SIZE] += 1
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assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {
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'data': bad_block_sn.hex(),
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'mode': 'proposal',
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})
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self.log.info("getblocktemplate: Test bad bits")
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bad_block = copy.deepcopy(block)
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bad_block.nBits = 469762303 # impossible in the real world
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assert_template(node, bad_block, 'bad-diffbits')
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self.log.info("getblocktemplate: Test bad merkle root")
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bad_block = copy.deepcopy(block)
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bad_block.hashMerkleRoot += 1
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assert_template(node, bad_block, 'bad-txnmrklroot', False)
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assert_submitblock(bad_block, 'bad-txnmrklroot', 'bad-txnmrklroot')
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self.log.info("getblocktemplate: Test bad timestamps")
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bad_block = copy.deepcopy(block)
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bad_block.nTime = 2**31 - 1
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assert_template(node, bad_block, 'time-too-new')
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assert_submitblock(bad_block, 'time-too-new', 'time-too-new')
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bad_block.nTime = 0
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assert_template(node, bad_block, 'time-too-old')
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assert_submitblock(bad_block, 'time-too-old', 'time-too-old')
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self.log.info("getblocktemplate: Test not best block")
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bad_block = copy.deepcopy(block)
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bad_block.hashPrevBlock = 123
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assert_template(node, bad_block, 'inconclusive-not-best-prevblk')
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assert_submitblock(bad_block, 'prev-blk-not-found', 'prev-blk-not-found')
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self.log.info('submitheader tests')
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assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='xx' * BLOCK_HEADER_SIZE))
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assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='ff' * (BLOCK_HEADER_SIZE-2)))
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assert_raises_rpc_error(-25, 'Must submit previous header', lambda: node.submitheader(hexdata=super(CBlock, bad_block).serialize().hex()))
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block.nTime += 1
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block.solve()
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def filter_tip_keys(chaintips):
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"""
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Dash chaintips rpc returns extra info in each tip (difficulty, chainwork, and
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forkpoint). Filter down to relevant ones checked in this test.
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"""
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check_keys = ["hash", "height", "branchlen", "status"]
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filtered_tips = []
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for tip in chaintips:
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filtered_tips.append({k: tip[k] for k in check_keys})
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return filtered_tips
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def chain_tip(b_hash, *, status='headers-only', branchlen=1):
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return {'hash': b_hash, 'height': 202, 'branchlen': branchlen, 'status': status}
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assert chain_tip(block.hash) not in filter_tip_keys(node.getchaintips())
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node.submitheader(hexdata=block.serialize().hex())
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assert chain_tip(block.hash) in filter_tip_keys(node.getchaintips())
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node.submitheader(hexdata=CBlockHeader(block).serialize().hex()) # Noop
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assert chain_tip(block.hash) in filter_tip_keys(node.getchaintips())
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bad_block_root = copy.deepcopy(block)
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bad_block_root.hashMerkleRoot += 2
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bad_block_root.solve()
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assert chain_tip(bad_block_root.hash) not in filter_tip_keys(node.getchaintips())
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node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
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assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
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# Should still reject invalid blocks, even if we have the header:
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assert_equal(node.submitblock(hexdata=bad_block_root.serialize().hex()), 'bad-txnmrklroot')
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assert_equal(node.submitblock(hexdata=bad_block_root.serialize().hex()), 'bad-txnmrklroot')
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assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
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# We know the header for this invalid block, so should just return early without error:
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node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
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assert chain_tip(bad_block_root.hash) in filter_tip_keys(node.getchaintips())
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bad_block_lock = copy.deepcopy(block)
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bad_block_lock.vtx[0].nLockTime = 2**32 - 1
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bad_block_lock.vtx[0].rehash()
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bad_block_lock.hashMerkleRoot = bad_block_lock.calc_merkle_root()
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bad_block_lock.solve()
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assert_equal(node.submitblock(hexdata=bad_block_lock.serialize().hex()), 'bad-txns-nonfinal')
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assert_equal(node.submitblock(hexdata=bad_block_lock.serialize().hex()), 'duplicate-invalid')
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# Build a "good" block on top of the submitted bad block
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bad_block2 = copy.deepcopy(block)
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bad_block2.hashPrevBlock = bad_block_lock.sha256
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bad_block2.solve()
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assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
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# Should reject invalid header right away
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bad_block_time = copy.deepcopy(block)
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bad_block_time.nTime = 1
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bad_block_time.solve()
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assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
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# Should ask for the block from a p2p node, if they announce the header as well:
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node.add_p2p_connection(P2PDataStore())
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node.p2p.wait_for_getheaders(timeout=5) # Drop the first getheaders
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node.p2p.send_blocks_and_test(blocks=[block], node=node)
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# Must be active now:
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assert chain_tip(block.hash, status='active', branchlen=0) in filter_tip_keys(node.getchaintips())
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# Building a few blocks should give the same results
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node.generatetoaddress(10, node.get_deterministic_priv_key().address)
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assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
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assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
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node.submitheader(hexdata=CBlockHeader(block).serialize().hex())
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node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
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assert_equal(node.submitblock(hexdata=block.serialize().hex()), 'duplicate') # valid
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if __name__ == '__main__':
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MiningTest().main()
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