text: #!/usr/bin/env python3
  # Copyright (c) 2016 The Coinium Core developers
  # Distributed under the MIT software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  from test_framework.test_framework import CoiniumTestFramework
  from test_framework.util import *
  
  
  class SignMessagesTest(CoiniumTestFramework):
      """Tests RPC commands for signing and verifying messages."""
  
      def __init__(self):
          super().__init__()
          self.setup_clean_chain = True
          self.num_nodes = 1
  
      def setup_network(self, split=False):
          self.nodes = start_nodes(self.num_nodes, self.options.tmpdir)
          self.is_network_split = False
  
      def run_test(self):
          message = 'This is just a test message'
  
          # Test the signing with a privkey
          privKey = 'cUeKHd5orzT3mz8P9pxyREHfsWtVfgsfDjiZZBcjUBAaGk1BTj7N'
          address = 'mpLQjfK79b7CCV4VMJWEWAj5Mpx8Up5zxB'
          signature = self.nodes[0].signmessagewithprivkey(privKey, message)
  
          # Verify the message
          assert(self.nodes[0].verifymessage(address, signature, message))
  
          # Test the signing with an address with wallet
          address = self.nodes[0].getnewaddress()
          signature = self.nodes[0].signmessage(address, message)
  
          # Verify the message
          assert(self.nodes[0].verifymessage(address, signature, message))
  
  if __name__ == '__main__':
      SignMessagesTest().main()
  