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67 lines
2.8 KiB
67 lines
2.8 KiB
#!/usr/bin/env python2 |
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# Copyright (c) 2014-2015 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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# Test mempool limiting together/eviction with the wallet |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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class MempoolLimitTest(BitcoinTestFramework): |
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def __init__(self): |
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# Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create |
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# So we have big transactions (and therefore can't fit very many into each block) |
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# create one script_pubkey |
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script_pubkey = "6a4d0200" #OP_RETURN OP_PUSH2 512 bytes |
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for i in xrange (512): |
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script_pubkey = script_pubkey + "01" |
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# concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change |
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self.txouts = "81" |
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for k in xrange(128): |
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# add txout value |
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self.txouts = self.txouts + "0000000000000000" |
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# add length of script_pubkey |
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self.txouts = self.txouts + "fd0402" |
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# add script_pubkey |
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self.txouts = self.txouts + script_pubkey |
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def setup_network(self): |
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self.nodes = [] |
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self.nodes.append(start_node(0, self.options.tmpdir, ["-maxmempool=5", "-spendzeroconfchange=0", "-debug"])) |
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self.is_network_split = False |
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self.sync_all() |
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self.relayfee = self.nodes[0].getnetworkinfo()['relayfee'] |
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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, 2) |
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def run_test(self): |
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txids = [] |
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utxos = create_confirmed_utxos(self.relayfee, self.nodes[0], 90) |
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#create a mempool tx that will be evicted |
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us0 = utxos.pop() |
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inputs = [{ "txid" : us0["txid"], "vout" : us0["vout"]}] |
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outputs = {self.nodes[0].getnewaddress() : 0.0001} |
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tx = self.nodes[0].createrawtransaction(inputs, outputs) |
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txF = self.nodes[0].fundrawtransaction(tx) |
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txFS = self.nodes[0].signrawtransaction(txF['hex']) |
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txid = self.nodes[0].sendrawtransaction(txFS['hex']) |
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self.nodes[0].lockunspent(True, [us0]) |
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relayfee = self.nodes[0].getnetworkinfo()['relayfee'] |
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base_fee = relayfee*100 |
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for i in xrange (4): |
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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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# by now, the tx should be evicted, check confirmation state |
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assert(txid not in self.nodes[0].getrawmempool()) |
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txdata = self.nodes[0].gettransaction(txid); |
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assert(txdata['confirmations'] == 0) #confirmation should still be 0 |
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if __name__ == '__main__': |
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MempoolLimitTest().main()
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