[tests] Fix flake8 warnings in blocktools.py
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b184127db2
commit
cab8be5adf
1 changed files with 38 additions and 21 deletions
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@ -10,7 +10,24 @@ from .address import (
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script_to_p2sh_p2wsh,
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script_to_p2wsh,
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)
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from .mininode import *
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from .messages import (
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CBlock,
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COIN,
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COutPoint,
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CTransaction,
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CTxIn,
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CTxInWitness,
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CTxOut,
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FromHex,
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ToHex,
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bytes_to_hex_str,
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hash256,
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hex_str_to_bytes,
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ser_string,
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ser_uint256,
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sha256,
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uint256_from_str,
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)
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from .script import (
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CScript,
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OP_0,
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@ -24,15 +41,15 @@ from .script import (
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from .util import assert_equal
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# Create a block (with regtest difficulty)
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def create_block(hashprev, coinbase, nTime=None):
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def create_block(hashprev, coinbase, ntime=None):
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block = CBlock()
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if nTime is None:
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if ntime is None:
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import time
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block.nTime = int(time.time()+600)
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block.nTime = int(time.time() + 600)
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else:
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block.nTime = nTime
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block.nTime = ntime
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block.hashPrevBlock = hashprev
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block.nBits = 0x207fffff # difficulty retargeting is disabled in REGTEST chainparams
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block.nBits = 0x207fffff # difficulty retargeting is disabled in REGTEST chainparams
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block.vtx.append(coinbase)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.calc_sha256()
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@ -43,7 +60,7 @@ WITNESS_COMMITMENT_HEADER = b"\xaa\x21\xa9\xed"
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def get_witness_script(witness_root, witness_nonce):
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witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root)+ser_uint256(witness_nonce)))
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witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root) + ser_uint256(witness_nonce)))
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output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment)
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return CScript([OP_RETURN, output_data])
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@ -84,52 +101,52 @@ def serialize_script_num(value):
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# Create a coinbase transaction, assuming no miner fees.
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# If pubkey is passed in, the coinbase output will be a P2PK output;
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# otherwise an anyone-can-spend output.
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def create_coinbase(height, pubkey = None):
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def create_coinbase(height, pubkey=None):
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coinbase = CTransaction()
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coinbase.vin.append(CTxIn(COutPoint(0, 0xffffffff),
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ser_string(serialize_script_num(height)), 0xffffffff))
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ser_string(serialize_script_num(height)), 0xffffffff))
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coinbaseoutput = CTxOut()
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coinbaseoutput.nValue = 50 * COIN
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halvings = int(height/150) # regtest
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halvings = int(height / 150) # regtest
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coinbaseoutput.nValue >>= halvings
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if (pubkey != None):
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if (pubkey is not None):
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coinbaseoutput.scriptPubKey = CScript([pubkey, OP_CHECKSIG])
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else:
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coinbaseoutput.scriptPubKey = CScript([OP_TRUE])
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coinbase.vout = [ coinbaseoutput ]
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coinbase.vout = [coinbaseoutput]
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coinbase.calc_sha256()
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return coinbase
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# Create a transaction.
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# If the scriptPubKey is not specified, make it anyone-can-spend.
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def create_transaction(prevtx, n, sig, value, scriptPubKey=CScript()):
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# If the script_pub_key is not specified, make it anyone-can-spend.
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def create_transaction(prevtx, n, sig, value, script_pub_key=CScript()):
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tx = CTransaction()
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assert(n < len(prevtx.vout))
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tx.vin.append(CTxIn(COutPoint(prevtx.sha256, n), sig, 0xffffffff))
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tx.vout.append(CTxOut(value, scriptPubKey))
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tx.vout.append(CTxOut(value, script_pub_key))
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tx.calc_sha256()
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return tx
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def get_legacy_sigopcount_block(block, fAccurate=True):
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def get_legacy_sigopcount_block(block, accurate=True):
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count = 0
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for tx in block.vtx:
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count += get_legacy_sigopcount_tx(tx, fAccurate)
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count += get_legacy_sigopcount_tx(tx, accurate)
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return count
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def get_legacy_sigopcount_tx(tx, fAccurate=True):
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def get_legacy_sigopcount_tx(tx, accurate=True):
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count = 0
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for i in tx.vout:
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count += i.scriptPubKey.GetSigOpCount(fAccurate)
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count += i.scriptPubKey.GetSigOpCount(accurate)
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for j in tx.vin:
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# scriptSig might be of type bytes, so convert to CScript for the moment
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count += CScript(j.scriptSig).GetSigOpCount(fAccurate)
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count += CScript(j.scriptSig).GetSigOpCount(accurate)
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return count
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# Create a scriptPubKey corresponding to either a P2WPKH output for the
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# given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
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# pubkey. Returns the hex encoding of the scriptPubKey.
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def witness_script(use_p2wsh, pubkey):
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if (use_p2wsh == False):
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if not use_p2wsh:
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# P2WPKH instead
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pubkeyhash = hash160(hex_str_to_bytes(pubkey))
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pkscript = CScript([OP_0, pubkeyhash])
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