diff options
Diffstat (limited to 'test/functional/mempool_limit.py')
| -rwxr-xr-x | test/functional/mempool_limit.py | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/test/functional/mempool_limit.py b/test/functional/mempool_limit.py index c82dbb3f3d..79f6f9dc70 100755 --- a/test/functional/mempool_limit.py +++ b/test/functional/mempool_limit.py @@ -7,8 +7,14 @@ from decimal import Decimal from test_framework.blocktools import COINBASE_MATURITY +from test_framework.messages import COIN from test_framework.test_framework import BitcoinTestFramework -from test_framework.util import assert_equal, assert_greater_than, assert_raises_rpc_error, gen_return_txouts +from test_framework.util import ( + assert_equal, + assert_greater_than, + assert_raises_rpc_error, + gen_return_txouts, +) from test_framework.wallet import MiniWallet @@ -23,16 +29,19 @@ class MempoolLimitTest(BitcoinTestFramework): ]] self.supports_cli = False - def send_large_txs(self, node, miniwallet, txouts, fee_rate, tx_batch_size): + def send_large_txs(self, node, miniwallet, txouts, fee, tx_batch_size): for _ in range(tx_batch_size): - tx = miniwallet.create_self_transfer(from_node=node, fee_rate=fee_rate)['tx'] + tx = miniwallet.create_self_transfer(from_node=node, fee_rate=0, mempool_valid=False)['tx'] for txout in txouts: tx.vout.append(txout) + tx.vout[0].nValue -= int(fee * COIN) + res = node.testmempoolaccept([tx.serialize().hex()])[0] + assert_equal(res['fees']['base'], fee) miniwallet.sendrawtransaction(from_node=node, tx_hex=tx.serialize().hex()) def run_test(self): txouts = gen_return_txouts() - node=self.nodes[0] + node = self.nodes[0] miniwallet = MiniWallet(node) relayfee = node.getnetworkinfo()['relayfee'] @@ -54,13 +63,15 @@ class MempoolLimitTest(BitcoinTestFramework): self.log.info('Create a mempool tx that will be evicted') tx_to_be_evicted_id = miniwallet.send_self_transfer(from_node=node, fee_rate=relayfee)["txid"] - # Increase the tx fee rate massively to give the subsequent transactions a higher priority in the mempool - base_fee = relayfee * 1000 + # Increase the tx fee rate to give the subsequent transactions a higher priority in the mempool + # The tx has an approx. vsize of 65k, i.e. multiplying the previous fee rate (in sats/kvB) + # by 130 should result in a fee that corresponds to 2x of that fee rate + base_fee = relayfee * 130 self.log.info("Fill up the mempool with txs with higher fee rate") for batch_of_txid in range(num_of_batches): - fee_rate=(batch_of_txid + 1) * base_fee - self.send_large_txs(node, miniwallet, txouts, fee_rate, tx_batch_size) + fee = (batch_of_txid + 1) * base_fee + self.send_large_txs(node, miniwallet, txouts, fee, tx_batch_size) self.log.info('The tx should be evicted by now') # The number of transactions created should be greater than the ones present in the mempool |