text: #!/usr/bin/env python3
  # Copyright (c) 2015-2016 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 new NUXCOIN multisig prefix functionality.
  #
  
  from test_framework.test_framework import BitcoinTestFramework
  from test_framework.util import (
      assert_equal,
      connect_nodes,
  )
  
  class ScriptAddress2Test(BitcoinTestFramework):
      def set_test_params(self):
          self.num_nodes = 3
          self.setup_clean_chain = True
          self.extra_args = [['-addresstype=legacy', '-deprecatedrpc=accounts', '-txindex=1'], [], ['-txindex=1']]
  
      def setup_network(self, split=False):
          self.setup_nodes()
          connect_nodes(self.nodes[1], 0)
          connect_nodes(self.nodes[2], 0)
          self.sync_all()
  
      def skip_test_if_missing_module(self):
          self.skip_if_no_wallet()
  
      def run_test(self):
          cnt = self.nodes[0].getblockcount()
  
          # Mine some blocks
          self.nodes[1].generate(101)
          self.sync_all()
          if (self.nodes[0].getblockcount() != cnt + 101):
              raise AssertionError("Failed to mine 100 blocks")
  
          addr = self.nodes[0].getnewaddress()
          addr2 = self.nodes[0].getnewaddress()
  
          multisig_addr = self.nodes[0].addmultisigaddress(2, [addr, addr2], "multisigaccount")['address']
          assert_equal(multisig_addr[0], 'Q')
  
          # Send to a new multisig address
          txid = self.nodes[1].sendtoaddress(multisig_addr, 1)
          self.nodes[1].generate(101)
          self.sync_all()
          tx = self.nodes[0].getrawtransaction(txid, 1)
          dest_addrs = [tx["vout"][0]['scriptPubKey']['addresses'][0],
                        tx["vout"][1]['scriptPubKey']['addresses'][0]]
          assert(multisig_addr in dest_addrs)
  
          # Spend from the new multisig address
          addr3 = self.nodes[1].getnewaddress()
          txid = self.nodes[0].sendtoaddress(addr3, 0.8)
          self.nodes[0].generate(2)
          self.sync_all()
          assert(self.nodes[0].getbalance("*", 1) < 0.2)
          assert(self.nodes[1].listtransactions()[-1]['address'] == addr3)
  
          # Send to an old multisig address. The api addmultisigaddress
          # can only generate a new address so we manually compute
          # multisig_addr_old beforehand using an old client.
          priv_keys = ["cU7eeLPKzXeKMeZvnEJhvZZ3tLqVF3XGeo1BbM8dnbmV7pP3Qg89",
                       "cTw7mRhSvTfzqCt6MFgBoTBqwBpYu2rWugisXcwjv4cAASh3iqPt"]
  
          addrs = ["mj6gNGRXPXrD69R5ApjcsDerZGrYKSfb6v",
                   "mqET4JA3L7P7FoUjUP3F6m6YsLpCkyzzou"]
  
          self.nodes[0].importprivkey(priv_keys[0])
          self.nodes[0].importprivkey(priv_keys[1])
  
          multisig_addr_new = self.nodes[0].addmultisigaddress(2, addrs, "multisigaccount2")['address']
          assert_equal(multisig_addr_new, 'QZ974ZrPrmqMmm1PSVp4m8YEgo3bCQZBbe')
          multisig_addr_old = "2N5nLwYz9qfnGdaFLpPn3gS6oYQbmLTWPjq"
  
          # Let's send to the old address. We can then find it in the
          # new address with the new client. So basically the old
          # address and the new one are the same thing.
          txid = self.nodes[1].sendtoaddress(multisig_addr_old, 1)
          self.nodes[1].generate(1)
          self.sync_all()
          tx = self.nodes[2].getrawtransaction(txid, 1)
          dest_addrs = [tx["vout"][0]['scriptPubKey']['addresses'][0],
                        tx["vout"][1]['scriptPubKey']['addresses'][0]]
  
          assert(multisig_addr_new in dest_addrs)
          assert(multisig_addr_old not in dest_addrs)
  
          # Spend from the new multisig address
          addr4 = self.nodes[1].getnewaddress()
          txid = self.nodes[0].sendtoaddress(addr4, 0.8)
          self.nodes[0].generate(2)
          self.sync_all()
          assert(self.nodes[0].getbalance("*", 1) < 0.4)
          assert(self.nodes[1].listtransactions()[-1]['address'] == addr4)
  
  if __name__ == '__main__':
      ScriptAddress2Test().main()
  