mirror of
https://github.com/dashpay/dash.git
synced 2024-12-30 14:25:53 +01:00
47ba8cf71e
-BEGIN VERIFY SCRIPT- sed -i 's/assert_raises_jsonrpc/assert_raises_rpc_error/g' test/functional/*py test/functional/test_framework/*py -END VERIFY SCRIPT-
111 lines
4.8 KiB
Python
Executable File
111 lines
4.8 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2014-2017 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
"""Test mempool persistence.
|
|
|
|
By default, bitcoind will dump mempool on shutdown and
|
|
then reload it on startup. This can be overridden with
|
|
the -persistmempool=0 command line option.
|
|
|
|
Test is as follows:
|
|
|
|
- start node0, node1 and node2. node1 has -persistmempool=0
|
|
- create 5 transactions on node2 to its own address. Note that these
|
|
are not sent to node0 or node1 addresses because we don't want
|
|
them to be saved in the wallet.
|
|
- check that node0 and node1 have 5 transactions in their mempools
|
|
- shutdown all nodes.
|
|
- startup node0. Verify that it still has 5 transactions
|
|
in its mempool. Shutdown node0. This tests that by default the
|
|
mempool is persistent.
|
|
- startup node1. Verify that its mempool is empty. Shutdown node1.
|
|
This tests that with -persistmempool=0, the mempool is not
|
|
dumped to disk when the node is shut down.
|
|
- Restart node0 with -persistmempool=0. Verify that its mempool is
|
|
empty. Shutdown node0. This tests that with -persistmempool=0,
|
|
the mempool is not loaded from disk on start up.
|
|
- Restart node0 with -persistmempool. Verify that it has 5
|
|
transactions in its mempool. This tests that -persistmempool=0
|
|
does not overwrite a previously valid mempool stored on disk.
|
|
- Remove node0 mempool.dat and verify savemempool RPC recreates it
|
|
and verify that node1 can load it and has 5 transaction in its
|
|
mempool.
|
|
- Verify that savemempool throws when the RPC is called if
|
|
node1 can't write to disk.
|
|
|
|
"""
|
|
import os
|
|
import time
|
|
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import *
|
|
|
|
class MempoolPersistTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 3
|
|
self.extra_args = [[], ["-persistmempool=0"], []]
|
|
|
|
def run_test(self):
|
|
chain_height = self.nodes[0].getblockcount()
|
|
assert_equal(chain_height, 200)
|
|
|
|
self.log.debug("Mine a single block to get out of IBD")
|
|
self.nodes[0].generate(1)
|
|
self.sync_all()
|
|
|
|
self.log.debug("Send 5 transactions from node2 (to its own address)")
|
|
for i in range(5):
|
|
self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
|
|
self.sync_all()
|
|
|
|
self.log.debug("Verify that node0 and node1 have 5 transactions in their mempools")
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 5)
|
|
assert_equal(len(self.nodes[1].getrawmempool()), 5)
|
|
|
|
self.log.debug("Stop-start node0 and node1. Verify that node0 has the transactions in its mempool and node1 does not.")
|
|
self.stop_nodes()
|
|
self.start_node(0)
|
|
self.start_node(1)
|
|
# Give bitcoind a second to reload the mempool
|
|
time.sleep(1)
|
|
wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
|
|
assert_equal(len(self.nodes[1].getrawmempool()), 0)
|
|
|
|
self.log.debug("Stop-start node0 with -persistmempool=0. Verify that it doesn't load its mempool.dat file.")
|
|
self.stop_nodes()
|
|
self.start_node(0, extra_args=["-persistmempool=0"])
|
|
# Give bitcoind a second to reload the mempool
|
|
time.sleep(1)
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 0)
|
|
|
|
self.log.debug("Stop-start node0. Verify that it has the transactions in its mempool.")
|
|
self.stop_nodes()
|
|
self.start_node(0)
|
|
wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
|
|
|
|
mempooldat0 = os.path.join(self.options.tmpdir, 'node0', 'regtest', 'mempool.dat')
|
|
mempooldat1 = os.path.join(self.options.tmpdir, 'node1', 'regtest', 'mempool.dat')
|
|
self.log.debug("Remove the mempool.dat file. Verify that savemempool to disk via RPC re-creates it")
|
|
os.remove(mempooldat0)
|
|
self.nodes[0].savemempool()
|
|
assert os.path.isfile(mempooldat0)
|
|
|
|
self.log.debug("Stop nodes, make node1 use mempool.dat from node0. Verify it has 5 transactions")
|
|
os.rename(mempooldat0, mempooldat1)
|
|
self.stop_nodes()
|
|
self.start_node(1, extra_args=[])
|
|
wait_until(lambda: len(self.nodes[1].getrawmempool()) == 5)
|
|
|
|
self.log.debug("Prevent bitcoind from writing mempool.dat to disk. Verify that `savemempool` fails")
|
|
# to test the exception we are setting bad permissions on a tmp file called mempool.dat.new
|
|
# which is an implementation detail that could change and break this test
|
|
mempooldotnew1 = mempooldat1 + '.new'
|
|
with os.fdopen(os.open(mempooldotnew1, os.O_CREAT, 0o000), 'w'):
|
|
pass
|
|
assert_raises_rpc_error(-1, "Unable to dump mempool to disk", self.nodes[1].savemempool)
|
|
os.remove(mempooldotnew1)
|
|
|
|
if __name__ == '__main__':
|
|
MempoolPersistTest().main()
|