text: #!/usr/bin/env python3
  # Copyright (c) 2017 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 multiwallet.
  
  Verify that a bitcoinbridged node can load multiple wallet files
  """
  import os
  
  from test_framework.test_framework import BitcoinBridgeTestFramework
  from test_framework.util import assert_equal, assert_raises_jsonrpc
  
  class MultiWalletTest(BitcoinBridgeTestFramework):
      def set_test_params(self):
          self.setup_clean_chain = True
          self.num_nodes = 1
          self.extra_args = [['-wallet=w1', '-wallet=w2', '-wallet=w3']]
  
      def run_test(self):
          assert_equal(set(self.nodes[0].listwallets()), {"w1", "w2", "w3"})
  
          self.stop_node(0)
  
          # should not initialize if there are duplicate wallets
          self.assert_start_raises_init_error(0, ['-wallet=w1', '-wallet=w1'], 'Error loading wallet w1. Duplicate -wallet filename specified.')
  
          # should not initialize if wallet file is a directory
          os.mkdir(os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w11'))
          self.assert_start_raises_init_error(0, ['-wallet=w11'], 'Error loading wallet w11. -wallet filename must be a regular file.')
  
          # should not initialize if wallet file is a symlink
          os.symlink(os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w1'), os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w12'))
          self.assert_start_raises_init_error(0, ['-wallet=w12'], 'Error loading wallet w12. -wallet filename must be a regular file.')
  
          self.start_node(0, self.extra_args[0])
  
          w1 = self.nodes[0].get_wallet_rpc("w1")
          w2 = self.nodes[0].get_wallet_rpc("w2")
          w3 = self.nodes[0].get_wallet_rpc("w3")
          wallet_bad = self.nodes[0].get_wallet_rpc("bad")
  
          w1.generate(1)
  
          # accessing invalid wallet fails
          assert_raises_jsonrpc(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
  
          # accessing wallet RPC without using wallet endpoint fails
          assert_raises_jsonrpc(-19, "Wallet file not specified", self.nodes[0].getwalletinfo)
  
          # check w1 wallet balance
          w1_info = w1.getwalletinfo()
          assert_equal(w1_info['immature_balance'], 50)
          w1_name = w1_info['walletname']
          assert_equal(w1_name, "w1")
  
          # check w2 wallet balance
          w2_info = w2.getwalletinfo()
          assert_equal(w2_info['immature_balance'], 0)
          w2_name = w2_info['walletname']
          assert_equal(w2_name, "w2")
  
          w3_name = w3.getwalletinfo()['walletname']
          assert_equal(w3_name, "w3")
  
          assert_equal({"w1", "w2", "w3"}, {w1_name, w2_name, w3_name})
  
          w1.generate(101)
          assert_equal(w1.getbalance(), 100)
          assert_equal(w2.getbalance(), 0)
          assert_equal(w3.getbalance(), 0)
  
          w1.sendtoaddress(w2.getnewaddress(), 1)
          w1.sendtoaddress(w3.getnewaddress(), 2)
          w1.generate(1)
          assert_equal(w2.getbalance(), 1)
          assert_equal(w3.getbalance(), 2)
  
  if __name__ == '__main__':
      MultiWalletTest().main()
  