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path: root/test/functional/wallet_keypool.py
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#!/usr/bin/env python3
# Copyright (c) 2014-2018 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 the wallet keypool and interaction with wallet encryption/locking."""

from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *

class KeyPoolTest(BitcoinTestFramework):
    def set_test_params(self):
        self.num_nodes = 1

    def run_test(self):
        nodes = self.nodes
        addr_before_encrypting = nodes[0].getnewaddress()
        addr_before_encrypting_data = nodes[0].getaddressinfo(addr_before_encrypting)
        wallet_info_old = nodes[0].getwalletinfo()
        assert_equal(wallet_info_old['hdseedid'], wallet_info_old['hdmasterkeyid'])
        assert(addr_before_encrypting_data['hdseedid'] == wallet_info_old['hdseedid'])

        # Encrypt wallet and wait to terminate
        nodes[0].encryptwallet('test')
        # Keep creating keys
        addr = nodes[0].getnewaddress()
        addr_data = nodes[0].getaddressinfo(addr)
        wallet_info = nodes[0].getwalletinfo()
        assert_equal(wallet_info['hdseedid'], wallet_info['hdmasterkeyid'])
        assert(addr_before_encrypting_data['hdseedid'] != wallet_info['hdseedid'])
        assert(addr_data['hdseedid'] == wallet_info['hdseedid'])
        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)

        # put six (plus 2) new keys in the keypool (100% external-, +100% internal-keys, 1 in min)
        nodes[0].walletpassphrase('test', 12000)
        nodes[0].keypoolrefill(6)
        nodes[0].walletlock()
        wi = nodes[0].getwalletinfo()
        assert_equal(wi['keypoolsize_hd_internal'], 6)
        assert_equal(wi['keypoolsize'], 6)

        # drain the internal keys
        nodes[0].getrawchangeaddress()
        nodes[0].getrawchangeaddress()
        nodes[0].getrawchangeaddress()
        nodes[0].getrawchangeaddress()
        nodes[0].getrawchangeaddress()
        nodes[0].getrawchangeaddress()
        addr = set()
        # the next one should fail
        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].getrawchangeaddress)

        # drain the external keys
        addr.add(nodes[0].getnewaddress())
        addr.add(nodes[0].getnewaddress())
        addr.add(nodes[0].getnewaddress())
        addr.add(nodes[0].getnewaddress())
        addr.add(nodes[0].getnewaddress())
        addr.add(nodes[0].getnewaddress())
        assert(len(addr) == 6)
        # the next one should fail
        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)

        # refill keypool with three new addresses
        nodes[0].walletpassphrase('test', 1)
        nodes[0].keypoolrefill(3)

        # test walletpassphrase timeout
        time.sleep(1.1)
        assert_equal(nodes[0].getwalletinfo()["unlocked_until"], 0)

        # drain them by mining
        nodes[0].generate(1)
        nodes[0].generate(1)
        nodes[0].generate(1)
        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].generate, 1)

        nodes[0].walletpassphrase('test', 100)
        nodes[0].keypoolrefill(100)
        wi = nodes[0].getwalletinfo()
        assert_equal(wi['keypoolsize_hd_internal'], 100)
        assert_equal(wi['keypoolsize'], 100)

if __name__ == '__main__':
    KeyPoolTest().main()