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82 lines
3.6 KiB
82 lines
3.6 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2014-2020 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 longpolling with getblocktemplate.""" |
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from decimal import Decimal |
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import random |
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import threading |
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from test_framework.blocktools import COINBASE_MATURITY |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import get_rpc_proxy |
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from test_framework.wallet import MiniWallet |
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class LongpollThread(threading.Thread): |
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def __init__(self, node): |
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threading.Thread.__init__(self) |
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# query current longpollid |
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template = node.getblocktemplate({'rules': ['segwit']}) |
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self.longpollid = template['longpollid'] |
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# create a new connection to the node, we can't use the same |
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# connection from two threads |
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self.node = get_rpc_proxy(node.url, 1, timeout=600, coveragedir=node.coverage_dir) |
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def run(self): |
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self.node.getblocktemplate({'longpollid': self.longpollid, 'rules': ['segwit']}) |
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class GetBlockTemplateLPTest(BitcoinTestFramework): |
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def set_test_params(self): |
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self.num_nodes = 2 |
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self.supports_cli = False |
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def run_test(self): |
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self.log.info("Warning: this test will take about 70 seconds in the best case. Be patient.") |
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self.log.info("Test that longpollid doesn't change between successive getblocktemplate() invocations if nothing else happens") |
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self.nodes[0].generate(10) |
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template = self.nodes[0].getblocktemplate({'rules': ['segwit']}) |
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longpollid = template['longpollid'] |
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template2 = self.nodes[0].getblocktemplate({'rules': ['segwit']}) |
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assert template2['longpollid'] == longpollid |
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self.log.info("Test that longpoll waits if we do nothing") |
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thr = LongpollThread(self.nodes[0]) |
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thr.start() |
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# check that thread still lives |
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thr.join(5) # wait 5 seconds or until thread exits |
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assert thr.is_alive() |
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miniwallets = [ MiniWallet(node) for node in self.nodes ] |
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self.log.info("Test that longpoll will terminate if another node generates a block") |
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miniwallets[1].generate(1) # generate a block on another node |
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# check that thread will exit now that new transaction entered mempool |
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thr.join(5) # wait 5 seconds or until thread exits |
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assert not thr.is_alive() |
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self.log.info("Test that longpoll will terminate if we generate a block ourselves") |
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thr = LongpollThread(self.nodes[0]) |
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thr.start() |
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miniwallets[0].generate(1) # generate a block on own node |
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thr.join(5) # wait 5 seconds or until thread exits |
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assert not thr.is_alive() |
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# Add enough mature utxos to the wallets, so that all txs spend confirmed coins |
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self.nodes[0].generate(COINBASE_MATURITY) |
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self.sync_blocks() |
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self.log.info("Test that introducing a new transaction into the mempool will terminate the longpoll") |
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thr = LongpollThread(self.nodes[0]) |
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thr.start() |
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# generate a random transaction and submit it |
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min_relay_fee = self.nodes[0].getnetworkinfo()["relayfee"] |
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fee_rate = min_relay_fee + Decimal('0.00000010') * random.randint(0,20) |
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miniwallets[0].send_self_transfer(from_node=random.choice(self.nodes), |
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fee_rate=fee_rate) |
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# after one minute, every 10 seconds the mempool is probed, so in 80 seconds it should have returned |
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thr.join(60 + 20) |
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assert not thr.is_alive() |
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if __name__ == '__main__': |
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GetBlockTemplateLPTest().main()
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