message: Have feature_filelock.py test both bdb and sqlite, depending on compiled
diff: # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  """Check that it's not possible to start a second bitcoind instance using the same datadir or wallet."""
  import os
  +import random
  +import string
  from test_framework.test_framework import BitcoinTestFramework
  from test_framework.test_node import ErrorMatch
  @@ -27,11 +29,21 @@ class FilelockTest(BitcoinTestFramework):
  self.nodes[1].assert_start_raises_init_error(extra_args=['-datadir={}'.format(self.nodes[0].datadir), '-noserver'], expected_msg=expected_msg)
  if self.is_wallet_compiled():
  - self.nodes[0].createwallet(self.default_wallet_name)
  + def check_wallet_filelock(descriptors):
  + wallet_name = ''.join([random.choice(string.ascii_lowercase) for _ in range(6)])
  + self.nodes[0].createwallet(wallet_name=wallet_name, descriptors=descriptors)
  wallet_dir = os.path.join(datadir, 'wallets')
  self.log.info("Check that we can't start a second bitcoind instance using the same wallet")
  + if descriptors:
  + expected_msg = "Error: SQLiteDatabase: Unable to obtain an exclusive lock on the database, is it being used by another bitcoind?"
  + else:
  expected_msg = "Error: Error initializing wallet database environment"
  - self.nodes[1].assert_start_raises_init_error(extra_args=['-walletdir={}'.format(wallet_dir), '-wallet=' + self.default_wallet_name, '-noserver'], expected_msg=expected_msg, match=ErrorMatch.PARTIAL_REGEX)
  + self.nodes[1].assert_start_raises_init_error(extra_args=['-walletdir={}'.format(wallet_dir), '-wallet=' + wallet_name, '-noserver'], expected_msg=expected_msg, match=ErrorMatch.PARTIAL_REGEX)
  +
  + if self.is_bdb_compiled():
  + check_wallet_filelock(False)
  + if self.is_sqlite_compiled():
  + check_wallet_filelock(True)
  if __name__ == '__main__':
  FilelockTest().main()
  