neobytes/test/functional/import-abort-rescan.py

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#!/usr/bin/env python3
# Copyright (c) 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 wallet import RPCs.
Test rescan behavior of importprivkey when aborted. The test ensures that:
1. The abortrescan command indeed stops the rescan process.
2. Subsequent rescan catches the aborted address UTXO
"""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (assert_equal, get_rpc_proxy)
from decimal import Decimal
import threading # for bg importprivkey
import time # for sleep
class ImportAbortRescanTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.setup_clean_chain = True
def run_test(self):
# Generate for BTC
assert_equal(self.nodes[0].getbalance(), 0)
assert_equal(self.nodes[1].getbalance(), 0)
self.nodes[0].generate(300)
assert_equal(self.nodes[1].getbalance(), 0)
# Make blocks with spam to cause rescan delay
for i in range(5):
for j in range(5):
self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 0.1)
self.nodes[0].generate(10)
addr = self.nodes[0].getnewaddress()
privkey = self.nodes[0].dumpprivkey(addr)
self.nodes[0].sendtoaddress(addr, 0.123)
self.nodes[0].generate(10) # mature tx
self.sync_all()
# Import this address in the background ...
node1ref = get_rpc_proxy(self.nodes[1].url, 1, timeout=600)
importthread = threading.Thread(target=node1ref.importprivkey, args=[privkey])
importthread.start()
# ... then abort rescan; try a bunch until abortres becomes true,
# because we will start checking before above thread starts processing
for i in range(2000):
time.sleep(0.001)
abortres = self.nodes[1].abortrescan()
if abortres: break
assert abortres # if false, we failed to abort
# import should die soon
for i in range(10):
time.sleep(0.1)
deadres = not importthread.isAlive()
if deadres: break
assert deadres # if false, importthread did not die soon enough
assert_equal(self.nodes[1].getbalance(), 0.0)
# Import a different address and let it run
self.nodes[1].importprivkey(self.nodes[0].dumpprivkey(self.nodes[0].getnewaddress()))
# Expect original privkey to now also be discovered and added to balance
assert_equal(self.nodes[1].getbalance(), Decimal("0.123"))
if __name__ == "__main__":
ImportAbortRescanTest().main()