diff options
Diffstat (limited to 'test/functional/test_framework/util.py')
| -rw-r--r-- | test/functional/test_framework/util.py | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py index 6a588275ea..bfc835f272 100644 --- a/test/functional/test_framework/util.py +++ b/test/functional/test_framework/util.py @@ -12,6 +12,7 @@ import inspect import json import logging import os +import random import re import time import unittest @@ -28,6 +29,10 @@ logger = logging.getLogger("TestFramework.utils") def assert_approx(v, vexp, vspan=0.00001): """Assert that `v` is within `vspan` of `vexp`""" + if isinstance(v, Decimal) or isinstance(vexp, Decimal): + v=Decimal(v) + vexp=Decimal(vexp) + vspan=Decimal(vspan) if v < vexp - vspan: raise AssertionError("%s < [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan))) if v > vexp + vspan: @@ -286,6 +291,13 @@ def sha256sum_file(filename): d = f.read(4096) return h.digest() + +# TODO: Remove and use random.randbytes(n) instead, available in Python 3.9 +def random_bytes(n): + """Return a random bytes object of length n.""" + return bytes(random.getrandbits(8) for i in range(n)) + + # RPC/P2P connection constants and functions ############################################ @@ -499,38 +511,26 @@ def chain_transaction(node, parent_txids, vouts, value, fee, num_outputs): # Create large OP_RETURN txouts that can be appended to a transaction -# to make it large (helper for constructing large transactions). +# to make it large (helper for constructing large transactions). The +# total serialized size of the txouts is about 66k vbytes. def gen_return_txouts(): - # Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create - # So we have big transactions (and therefore can't fit very many into each block) - # create one script_pubkey - script_pubkey = "6a4d0200" # OP_RETURN OP_PUSH2 512 bytes - for _ in range(512): - script_pubkey = script_pubkey + "01" - # concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change - txouts = [] from .messages import CTxOut - txout = CTxOut() - txout.nValue = 0 - txout.scriptPubKey = bytes.fromhex(script_pubkey) - for _ in range(128): - txouts.append(txout) + from .script import CScript, OP_RETURN + txouts = [CTxOut(nValue=0, scriptPubKey=CScript([OP_RETURN, b'\x01'*67437]))] + assert_equal(sum([len(txout.serialize()) for txout in txouts]), 67456) return txouts # Create a spend of each passed-in utxo, splicing in "txouts" to each raw # transaction to make it large. See gen_return_txouts() above. def create_lots_of_big_transactions(mini_wallet, node, fee, tx_batch_size, txouts, utxos=None): - from .messages import COIN - fee_sats = int(fee * COIN) txids = [] use_internal_utxos = utxos is None for _ in range(tx_batch_size): tx = mini_wallet.create_self_transfer( utxo_to_spend=None if use_internal_utxos else utxos.pop(), - fee_rate=0, + fee=fee, )["tx"] - tx.vout[0].nValue -= fee_sats tx.vout.extend(txouts) res = node.testmempoolaccept([tx.serialize().hex()])[0] assert_equal(res['fees']['base'], fee) |