feda41e0a7
d2ce315fbf[docs] add release note for change to GBT (John Newbery)0025c9eae4[mining] segwit option must be set in GBT (John Newbery) Pull request description: Calling getblocktemplate without the segwit rule specified is most likely a client error, since it results in lower fees for the miner. Prevent this client error by failing getblocktemplate if called without the segwit rule specified. Of the previous 1000 blocks (measured at block [551591 (hash 0x...173c811)](https://blockstream.info/block/000000000000000000173c811e79858808abc3216af607035973f002bef60a7a)), 991 included segwit transactions. Tree-SHA512: 7933b073d72683c9ab9318db46a085ec19a56a14937945c73f783ac7656887619a86b74db0bdfcb8121df44f63a1d6a6fb19e98505b2a26a6a8a6e768e442fee
153 lines
7.4 KiB
Python
Executable file
153 lines
7.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2015-2018 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 the prioritisetransaction mining RPC."""
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import time
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from test_framework.messages import COIN, MAX_BLOCK_BASE_SIZE
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal, assert_raises_rpc_error, create_confirmed_utxos, create_lots_of_big_transactions, gen_return_txouts
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class PrioritiseTransactionTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 2
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self.extra_args = [["-printpriority=1"], ["-printpriority=1"]]
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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# Test `prioritisetransaction` required parameters
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assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction)
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assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '')
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assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0)
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# Test `prioritisetransaction` invalid extra parameters
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assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0, 0, 0)
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# Test `prioritisetransaction` invalid `txid`
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assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].prioritisetransaction, txid='foo', fee_delta=0)
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assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000')", self.nodes[0].prioritisetransaction, txid='Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000', fee_delta=0)
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# Test `prioritisetransaction` invalid `dummy`
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txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
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assert_raises_rpc_error(-1, "JSON value is not a number as expected", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
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assert_raises_rpc_error(-8, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.", self.nodes[0].prioritisetransaction, txid, 1, 0)
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# Test `prioritisetransaction` invalid `fee_delta`
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assert_raises_rpc_error(-1, "JSON value is not an integer as expected", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
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self.txouts = gen_return_txouts()
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self.relayfee = self.nodes[0].getnetworkinfo()['relayfee']
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utxo_count = 90
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utxos = create_confirmed_utxos(self.relayfee, self.nodes[0], utxo_count)
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base_fee = self.relayfee*100 # our transactions are smaller than 100kb
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txids = []
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# Create 3 batches of transactions at 3 different fee rate levels
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range_size = utxo_count // 3
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for i in range(3):
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txids.append([])
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start_range = i * range_size
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end_range = start_range + range_size
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txids[i] = create_lots_of_big_transactions(self.nodes[0], self.txouts, utxos[start_range:end_range], end_range - start_range, (i+1)*base_fee)
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# Make sure that the size of each group of transactions exceeds
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# MAX_BLOCK_BASE_SIZE -- otherwise the test needs to be revised to create
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# more transactions.
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mempool = self.nodes[0].getrawmempool(True)
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sizes = [0, 0, 0]
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for i in range(3):
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for j in txids[i]:
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assert(j in mempool)
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sizes[i] += mempool[j]['size']
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assert(sizes[i] > MAX_BLOCK_BASE_SIZE) # Fail => raise utxo_count
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# add a fee delta to something in the cheapest bucket and make sure it gets mined
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# also check that a different entry in the cheapest bucket is NOT mined
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self.nodes[0].prioritisetransaction(txid=txids[0][0], fee_delta=int(3*base_fee*COIN))
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self.nodes[0].generate(1)
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mempool = self.nodes[0].getrawmempool()
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self.log.info("Assert that prioritised transaction was mined")
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assert(txids[0][0] not in mempool)
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assert(txids[0][1] in mempool)
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high_fee_tx = None
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for x in txids[2]:
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if x not in mempool:
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high_fee_tx = x
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# Something high-fee should have been mined!
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assert(high_fee_tx is not None)
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# Add a prioritisation before a tx is in the mempool (de-prioritising a
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# high-fee transaction so that it's now low fee).
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self.nodes[0].prioritisetransaction(txid=high_fee_tx, fee_delta=-int(2*base_fee*COIN))
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# Add everything back to mempool
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self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash())
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# Check to make sure our high fee rate tx is back in the mempool
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mempool = self.nodes[0].getrawmempool()
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assert(high_fee_tx in mempool)
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# Now verify the modified-high feerate transaction isn't mined before
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# the other high fee transactions. Keep mining until our mempool has
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# decreased by all the high fee size that we calculated above.
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while (self.nodes[0].getmempoolinfo()['bytes'] > sizes[0] + sizes[1]):
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self.nodes[0].generate(1)
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# High fee transaction should not have been mined, but other high fee rate
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# transactions should have been.
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mempool = self.nodes[0].getrawmempool()
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self.log.info("Assert that de-prioritised transaction is still in mempool")
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assert(high_fee_tx in mempool)
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for x in txids[2]:
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if (x != high_fee_tx):
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assert(x not in mempool)
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# Create a free transaction. Should be rejected.
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utxo_list = self.nodes[0].listunspent()
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assert(len(utxo_list) > 0)
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utxo = utxo_list[0]
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inputs = []
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outputs = {}
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inputs.append({"txid" : utxo["txid"], "vout" : utxo["vout"]})
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outputs[self.nodes[0].getnewaddress()] = utxo["amount"]
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raw_tx = self.nodes[0].createrawtransaction(inputs, outputs)
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tx_hex = self.nodes[0].signrawtransactionwithwallet(raw_tx)["hex"]
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tx_id = self.nodes[0].decoderawtransaction(tx_hex)["txid"]
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# This will raise an exception due to min relay fee not being met
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assert_raises_rpc_error(-26, "min relay fee not met", self.nodes[0].sendrawtransaction, tx_hex)
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assert(tx_id not in self.nodes[0].getrawmempool())
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# This is a less than 1000-byte transaction, so just set the fee
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# to be the minimum for a 1000-byte transaction and check that it is
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# accepted.
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self.nodes[0].prioritisetransaction(txid=tx_id, fee_delta=int(self.relayfee*COIN))
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self.log.info("Assert that prioritised free transaction is accepted to mempool")
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assert_equal(self.nodes[0].sendrawtransaction(tx_hex), tx_id)
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assert(tx_id in self.nodes[0].getrawmempool())
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# Test that calling prioritisetransaction is sufficient to trigger
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# getblocktemplate to (eventually) return a new block.
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mock_time = int(time.time())
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self.nodes[0].setmocktime(mock_time)
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template = self.nodes[0].getblocktemplate({'rules': ['segwit']})
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self.nodes[0].prioritisetransaction(txid=tx_id, fee_delta=-int(self.relayfee*COIN))
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self.nodes[0].setmocktime(mock_time+10)
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new_template = self.nodes[0].getblocktemplate({'rules': ['segwit']})
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assert(template != new_template)
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if __name__ == '__main__':
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PrioritiseTransactionTest().main()
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