From bbbb89d238e9bdaa9f426d55b0a3b714dac1d39b Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Wed, 10 May 2023 20:44:52 +0200 Subject: test: miner: add coverage for `-blockmintxfee` setting Co-authored-by: glozow --- test/functional/mining_basic.py | 46 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) (limited to 'test') diff --git a/test/functional/mining_basic.py b/test/functional/mining_basic.py index aabf06ee53..56cd615dac 100755 --- a/test/functional/mining_basic.py +++ b/test/functional/mining_basic.py @@ -18,9 +18,10 @@ from test_framework.blocktools import ( TIME_GENESIS_BLOCK, ) from test_framework.messages import ( + BLOCK_HEADER_SIZE, CBlock, CBlockHeader, - BLOCK_HEADER_SIZE, + COIN, ser_uint256, ) from test_framework.p2p import P2PDataStore @@ -28,12 +29,14 @@ from test_framework.test_framework import BitcoinTestFramework from test_framework.util import ( assert_equal, assert_raises_rpc_error, + get_fee, ) from test_framework.wallet import MiniWallet VERSIONBITS_TOP_BITS = 0x20000000 VERSIONBITS_DEPLOYMENT_TESTDUMMY_BIT = 28 +DEFAULT_BLOCK_MIN_TX_FEE = 1000 # default `-blockmintxfee` setting [sat/kvB] def assert_template(node, block, expect, rehash=True): @@ -73,6 +76,45 @@ class MiningTest(BitcoinTestFramework): self.restart_node(0) self.connect_nodes(0, 1) + def test_blockmintxfee_parameter(self): + self.log.info("Test -blockmintxfee setting") + self.restart_node(0, extra_args=['-minrelaytxfee=0', '-persistmempool=0']) + node = self.nodes[0] + + # test default (no parameter), zero and a bunch of arbitrary blockmintxfee rates [sat/kvB] + for blockmintxfee_sat_kvb in (DEFAULT_BLOCK_MIN_TX_FEE, 0, 50, 100, 500, 2500, 5000, 21000, 333333, 2500000): + blockmintxfee_btc_kvb = blockmintxfee_sat_kvb / Decimal(COIN) + if blockmintxfee_sat_kvb == DEFAULT_BLOCK_MIN_TX_FEE: + self.log.info(f"-> Default -blockmintxfee setting ({blockmintxfee_sat_kvb} sat/kvB)...") + else: + blockmintxfee_parameter = f"-blockmintxfee={blockmintxfee_btc_kvb:.8f}" + self.log.info(f"-> Test {blockmintxfee_parameter} ({blockmintxfee_sat_kvb} sat/kvB)...") + self.restart_node(0, extra_args=[blockmintxfee_parameter, '-minrelaytxfee=0', '-persistmempool=0']) + self.wallet.rescan_utxos() # to avoid spending outputs of txs that are not in mempool anymore after restart + + # submit one tx with exactly the blockmintxfee rate, and one slightly below + tx_with_min_feerate = self.wallet.send_self_transfer(from_node=node, fee_rate=blockmintxfee_btc_kvb) + assert_equal(tx_with_min_feerate["fee"], get_fee(tx_with_min_feerate["tx"].get_vsize(), blockmintxfee_btc_kvb)) + if blockmintxfee_btc_kvb > 0: + lowerfee_btc_kvb = blockmintxfee_btc_kvb - Decimal(10)/COIN # 0.01 sat/vbyte lower + tx_below_min_feerate = self.wallet.send_self_transfer(from_node=node, fee_rate=lowerfee_btc_kvb) + assert_equal(tx_below_min_feerate["fee"], get_fee(tx_below_min_feerate["tx"].get_vsize(), lowerfee_btc_kvb)) + else: # go below zero fee by using modified fees + tx_below_min_feerate = self.wallet.send_self_transfer(from_node=node, fee_rate=blockmintxfee_btc_kvb) + node.prioritisetransaction(tx_below_min_feerate["txid"], 0, -1) + + # check that tx below specified fee-rate is neither in template nor in the actual block + block_template = node.getblocktemplate(NORMAL_GBT_REQUEST_PARAMS) + block_template_txids = [tx['txid'] for tx in block_template['transactions']] + self.generate(self.wallet, 1, sync_fun=self.no_op) + block = node.getblock(node.getbestblockhash(), verbosity=2) + block_txids = [tx['txid'] for tx in block['tx']] + + assert tx_with_min_feerate['txid'] in block_template_txids + assert tx_with_min_feerate['txid'] in block_txids + assert tx_below_min_feerate['txid'] not in block_template_txids + assert tx_below_min_feerate['txid'] not in block_txids + def run_test(self): node = self.nodes[0] self.wallet = MiniWallet(node) @@ -279,6 +321,8 @@ class MiningTest(BitcoinTestFramework): node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex()) assert_equal(node.submitblock(hexdata=block.serialize().hex()), 'duplicate') # valid + self.test_blockmintxfee_parameter() + if __name__ == '__main__': MiningTest().main() -- cgit v1.2.3