lbrycrd/test/functional/p2p-feefilter.py

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#!/usr/bin/env python3
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# Copyright (c) 2016 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.
"""Test processing of feefilter messages."""
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from test_framework.mininode import *
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
import time
def hashToHex(hash):
return format(hash, '064x')
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# Wait up to 60 secs to see if the testnode has received all the expected invs
def allInvsMatch(invsExpected, testnode):
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for x in range(60):
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with mininode_lock:
if (sorted(invsExpected) == sorted(testnode.txinvs)):
return True
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time.sleep(1)
return False
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class TestNode(NodeConnCB):
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def __init__(self):
super().__init__()
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self.txinvs = []
def on_inv(self, conn, message):
for i in message.inv:
if (i.type == 1):
self.txinvs.append(hashToHex(i.hash))
def clear_invs(self):
with mininode_lock:
self.txinvs = []
class FeeFilterTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 2
self.setup_clean_chain = False
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def run_test(self):
node1 = self.nodes[1]
node0 = self.nodes[0]
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# Get out of IBD
node1.generate(1)
sync_blocks(self.nodes)
# Setup the p2p connections and start up the network thread.
test_node = TestNode()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node)
test_node.add_connection(connection)
NetworkThread().start()
test_node.wait_for_verack()
# Test that invs are received for all txs at feerate of 20 sat/byte
node1.settxfee(Decimal("0.00020000"))
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txids = [node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
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assert(allInvsMatch(txids, test_node))
test_node.clear_invs()
# Set a filter of 15 sat/byte
test_node.send_and_ping(msg_feefilter(15000))
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# Test that txs are still being received (paying 20 sat/byte)
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txids = [node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
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assert(allInvsMatch(txids, test_node))
test_node.clear_invs()
# Change tx fee rate to 10 sat/byte and test they are no longer received
node1.settxfee(Decimal("0.00010000"))
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[node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
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sync_mempools(self.nodes) # must be sure node 0 has received all txs
# Send one transaction from node0 that should be received, so that we
# we can sync the test on receipt (if node1's txs were relayed, they'd
# be received by the time this node0 tx is received). This is
# unfortunately reliant on the current relay behavior where we batch up
# to 35 entries in an inv, which means that when this next transaction
# is eligible for relay, the prior transactions from node1 are eligible
# as well.
node0.settxfee(Decimal("0.00020000"))
txids = [node0.sendtoaddress(node0.getnewaddress(), 1)]
assert(allInvsMatch(txids, test_node))
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test_node.clear_invs()
# Remove fee filter and check that txs are received again
test_node.send_and_ping(msg_feefilter(0))
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txids = [node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
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assert(allInvsMatch(txids, test_node))
test_node.clear_invs()
if __name__ == '__main__':
FeeFilterTest().main()