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f32564f0a7
1abcecc40cTests: Use self.chain instead of 'regtest' in almost all current tests (Jorge Timón) Pull request description: Simply avoiding the hardcoded string in more places for consistency. It can also allow for more easily reusing tests for other chains other than regtest. Separated from #8994 . Continues #16509 . It is still not complete (ie to be complete, we need the -chain parameter in #16680 and make whether acceptnonstdtxs is allowed for that chain or not customizable for regtest [or for custom chains like in #8994 ] ). But while being incomplete like #16509 , it's quite simple to review and another step forward IMO. ACKs for top commit: Sjors: re-ACK1abcecc. I think it's an improvement even if incomplete and if some PR's might accidentally bring "regtest" back. Subsequent improvements hopefully don't have to touch 16 files. elichai: Code review ACK1abcecc40cryanofsky: Code review ACK1abcecc40c. ryanofsky: Code review ACK1abcecc40cTree-SHA512: 5620de6dab235ca8bd8670d6366c7b9f04f0e3ca9c5e7f87765b38e16ed80c17d7d1630c0d5fd7c5526f070830d94dc74cc2096d8ede87dc7180ed20569509ee
252 lines
12 KiB
Python
Executable File
252 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2019 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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TIME_GENESIS_BLOCK,
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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.mininode import (
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P2PDataStore,
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)
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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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connect_nodes,
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)
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from test_framework.script import CScriptNum
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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={'data': block.serialize().hex(), 'mode': 'proposal', 'rules': ['segwit']})
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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 t in range(TIME_GENESIS_BLOCK, TIME_GENESIS_BLOCK + 200 * 600, 600):
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self.nodes[0].setmocktime(t)
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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['currentblockweight'], 4000)
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self.restart_node(0)
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connect_nodes(self.nodes[0], 1)
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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 'currentblocktx' not in mining_info
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assert 'currentblockweight' 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('0.003333333333333334'))
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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({'rules': ['segwit']})
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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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# round-trip the encoded bip34 block height commitment
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assert_equal(CScriptNum.decode(coinbase_tx.vin[0].scriptSig), next_height)
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# round-trip negative and multi-byte CScriptNums to catch python regression
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assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(1500))), 1500)
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assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(-1500))), -1500)
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assert_equal(CScriptNum.decode(CScriptNum.encode(CScriptNum(-1))), -1)
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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: segwit rule must be set")
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assert_raises_rpc_error(-8, "getblocktemplate must be called with the segwit rule set", node.getblocktemplate)
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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, {'data': block.serialize()[:-1].hex(), 'mode': 'proposal', 'rules': ['segwit']})
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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, {'data': bad_block_sn.hex(), 'mode': 'proposal', 'rules': ['segwit']})
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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 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 node.getchaintips()
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node.submitheader(hexdata=block.serialize().hex())
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assert chain_tip(block.hash) in node.getchaintips()
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node.submitheader(hexdata=CBlockHeader(block).serialize().hex()) # Noop
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assert chain_tip(block.hash) in 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 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 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 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 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 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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