1 #!/usr/bin/env python3
2 # Copyright (c) 2018-present The Bitcoin Core developers
3 # Distributed under the MIT software license, see the accompanying
4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 """Check that it's not possible to start a second bitcoind instance using the same datadir or wallet."""
6 import random
7 import string
8 9 from test_framework.test_framework import BitcoinTestFramework
10 from test_framework.test_node import (
11 BITCOIN_PID_FILENAME_DEFAULT,
12 ErrorMatch,
13 )
14 15 class FilelockTest(BitcoinTestFramework):
16 def set_test_params(self):
17 self.setup_clean_chain = True
18 self.num_nodes = 2
19 self.uses_wallet = None
20 21 def setup_network(self):
22 self.add_nodes(self.num_nodes, extra_args=None)
23 self.nodes[0].start()
24 self.nodes[0].wait_for_rpc_connection()
25 26 def run_test(self):
27 datadir = self.nodes[0].chain_path
28 blocksdir = self.nodes[0].blocks_path
29 self.log.info(f"Using datadir {datadir}")
30 self.log.info(f"Using blocksdir {blocksdir}")
31 32 self.log.info("Check that we can't start a second bitcoind instance using the same datadir")
33 expected_msg = f"Error: Cannot obtain a lock on directory {datadir}. {self.config['environment']['CLIENT_NAME']} is probably already running."
34 self.nodes[1].assert_start_raises_init_error(extra_args=[f'-datadir={self.nodes[0].datadir_path}', '-noserver'], expected_msg=expected_msg)
35 36 self.log.info("Check that we can't start a second bitcoind instance using the same blocksdir")
37 expected_msg = f"Error: Cannot obtain a lock on directory {blocksdir}. {self.config['environment']['CLIENT_NAME']} is probably already running."
38 self.nodes[1].assert_start_raises_init_error(extra_args=[f'-blocksdir={self.nodes[0].datadir_path}', '-noserver'], expected_msg=expected_msg)
39 40 self.log.info("Check that cookie and PID file are not deleted when attempting to start a second bitcoind using the same datadir/blocksdir")
41 cookie_file = datadir / ".cookie"
42 assert cookie_file.exists() # should not be deleted during the second bitcoind instance shutdown
43 pid_file = datadir / BITCOIN_PID_FILENAME_DEFAULT
44 assert pid_file.exists()
45 46 if self.is_wallet_compiled():
47 wallet_name = ''.join([random.choice(string.ascii_lowercase) for _ in range(6)])
48 self.nodes[0].createwallet(wallet_name=wallet_name)
49 wallet_dir = self.nodes[0].wallets_path
50 self.log.info("Check that we can't start a second bitcoind instance using the same wallet")
51 expected_msg = f"Error: SQLiteDatabase: Unable to obtain an exclusive lock on the database, is it being used by another instance of {self.config['environment']['CLIENT_NAME']}?"
52 self.nodes[1].assert_start_raises_init_error(extra_args=[f'-walletdir={wallet_dir}', f'-wallet={wallet_name}', '-noserver'], expected_msg=expected_msg, match=ErrorMatch.PARTIAL_REGEX)
53 54 if __name__ == '__main__':
55 FilelockTest(__file__).main()
56