127 lines
4.9 KiB
Python
Executable file
127 lines
4.9 KiB
Python
Executable file
#!/usr/bin/env python2
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# Copyright (c) 2015 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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#
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# Test PrioritiseTransaction code
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#
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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COIN = 100000000
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class PrioritiseTransactionTest(BitcoinTestFramework):
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def __init__(self):
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self.txouts = gen_return_txouts()
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def setup_chain(self):
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print("Initializing test directory "+self.options.tmpdir)
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initialize_chain_clean(self.options.tmpdir, 1)
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def setup_network(self):
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self.nodes = []
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self.is_network_split = False
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self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-printpriority=1"]))
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self.relayfee = self.nodes[0].getnetworkinfo()['relayfee']
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def run_test(self):
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utxos = create_confirmed_utxos(self.relayfee, self.nodes[0], 90)
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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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for i in xrange(3):
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txids.append([])
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txids[i] = create_lots_of_big_transactions(self.nodes[0], self.txouts, utxos[30*i:30*i+30], (i+1)*base_fee)
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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 (lower
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# the priority to ensure its not mined due to priority)
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self.nodes[0].prioritisetransaction(txids[0][0], 0, int(3*base_fee*COIN))
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self.nodes[0].prioritisetransaction(txids[0][1], -1e15, 0)
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self.nodes[0].generate(1)
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mempool = self.nodes[0].getrawmempool()
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print "Assert that prioritised transasction 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 != 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).
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self.nodes[0].prioritisetransaction(high_fee_tx, -1e15, -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 high feerate transaction isn't mined.
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self.nodes[0].generate(5)
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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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print "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, low priority 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"] - self.relayfee
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raw_tx = self.nodes[0].createrawtransaction(inputs, outputs)
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tx_hex = self.nodes[0].signrawtransaction(raw_tx)["hex"]
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txid = self.nodes[0].sendrawtransaction(tx_hex)
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# A tx that spends an in-mempool tx has 0 priority, so we can use it to
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# test the effect of using prioritise transaction for mempool acceptance
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inputs = []
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inputs.append({"txid": txid, "vout": 0})
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outputs = {}
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outputs[self.nodes[0].getnewaddress()] = utxo["amount"] - self.relayfee
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raw_tx2 = self.nodes[0].createrawtransaction(inputs, outputs)
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tx2_hex = self.nodes[0].signrawtransaction(raw_tx2)["hex"]
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tx2_id = self.nodes[0].decoderawtransaction(tx2_hex)["txid"]
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try:
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self.nodes[0].sendrawtransaction(tx2_hex)
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except JSONRPCException as exp:
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assert_equal(exp.error['code'], -26) # insufficient fee
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assert(tx2_id not in self.nodes[0].getrawmempool())
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else:
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assert(False)
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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(tx2_id, 0, int(self.relayfee*COIN))
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print "Assert that prioritised free transaction is accepted to mempool"
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assert_equal(self.nodes[0].sendrawtransaction(tx2_hex), tx2_id)
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assert(tx2_id in self.nodes[0].getrawmempool())
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if __name__ == '__main__':
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PrioritiseTransactionTest().main()
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