text: #!/usr/bin/env python3
  # Copyright (c) 2016-2019 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 RPC commands for signing and verifying messages."""
  
  from test_framework.test_framework import BitcoinTestFramework
  from test_framework.util import assert_equal
  from test_framework.onix import convert_btc_address_to_onix
  
  class SignMessagesTest(BitcoinTestFramework):
      def set_test_params(self):
          self.setup_clean_chain = True
          self.num_nodes = 1
          self.extra_args = [["-addresstype=legacy"]]
  
      def skip_test_if_missing_module(self):
          self.skip_if_no_wallet()
  
      def run_test(self):
          message = 'This is just a test message'
  
          self.log.info('test signing with priv_key')
          priv_key = 'cUeKHd5orzT3mz8P9pxyREHfsWtVfgsfDjiZZBcjUBAaGk1BTj7N'
          address = convert_btc_address_to_onix('mpLQjfK79b7CCV4VMJWEWAj5Mpx8Up5zxB')
          expected_signature = 'H82vbb1DFcGX32hHYCrWxCxo9aQCSSm4caa/+rvV2rdrT3YrZgkIQOIydNkd8F9rI94tTCgjzL/rplldv0ImR4I='
          signature = self.nodes[0].signmessagewithprivkey(priv_key, message)
          assert_equal(expected_signature, signature)
          assert self.nodes[0].verifymessage(address, signature, message)
  
          self.log.info('test signing with an address with wallet')
          address = self.nodes[0].getnewaddress()
          signature = self.nodes[0].signmessage(address, message)
          assert self.nodes[0].verifymessage(address, signature, message)
  
          self.log.info('test verifying with another address should not work')
          other_address = self.nodes[0].getnewaddress()
          other_signature = self.nodes[0].signmessage(other_address, message)
          assert not self.nodes[0].verifymessage(other_address, signature, message)
          assert not self.nodes[0].verifymessage(address, other_signature, message)
  
  if __name__ == '__main__':
      SignMessagesTest().main()
  