text: #!/usr/bin/env python3
  # Copyright (c) 2017 The CloudComputingChain 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 CloudComputingChaind node can load multiple wallet files
  """
  import os
  import shutil
  
  from test_framework.test_framework import CloudComputingChainTestFramework
  from test_framework.util import assert_equal, assert_raises_rpc_error
  
  class MultiWalletTest(CloudComputingChainTestFramework):
      def set_test_params(self):
          self.setup_clean_chain = True
          self.num_nodes = 1
          self.extra_args = [['-wallet=w1', '-wallet=w2', '-wallet=w3', '-wallet=w']]
          self.supports_cli = True
  
      def run_test(self):
          node = self.nodes[0]
  
          data_dir = lambda *p: os.path.join(node.datadir, 'regtest', *p)
          wallet_dir = lambda *p: data_dir('wallets', *p)
          wallet = lambda name: node.get_wallet_rpc(name)
  
          assert_equal(set(node.listwallets()), {"w1", "w2", "w3", "w"})
  
          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(wallet_dir('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 one wallet is a copy of another
          shutil.copyfile(wallet_dir('w2'), wallet_dir('w22'))
          self.assert_start_raises_init_error(0, ['-wallet=w2', '-wallet=w22'], 'duplicates fileid')
  
          # should not initialize if wallet file is a symlink
          os.symlink(wallet_dir('w1'), wallet_dir('w12'))
          self.assert_start_raises_init_error(0, ['-wallet=w12'], 'Error loading wallet w12. -wallet filename must be a regular file.')
  
          # should not initialize if the specified walletdir does not exist
          self.assert_start_raises_init_error(0, ['-walletdir=bad'], 'Error: Specified -walletdir "bad" does not exist')
          # should not initialize if the specified walletdir is not a directory
          not_a_dir = wallet_dir('notadir')
          open(not_a_dir, 'a').close()
          self.assert_start_raises_init_error(0, ['-walletdir=' + not_a_dir], 'Error: Specified -walletdir "' + not_a_dir + '" is not a directory')
  
          # if wallets/ doesn't exist, datadir should be the default wallet dir
          wallet_dir2 = data_dir('walletdir')
          os.rename(wallet_dir(), wallet_dir2)
          self.start_node(0, ['-wallet=w4', '-wallet=w5'])
          assert_equal(set(node.listwallets()), {"w4", "w5"})
          w5 = wallet("w5")
          w5.generate(1)
          self.stop_node(0)
  
          # now if wallets/ exists again, but the rootdir is specified as the walletdir, w4 and w5 should still be loaded
          os.rename(wallet_dir2, wallet_dir())
          self.start_node(0, ['-wallet=w4', '-wallet=w5', '-walletdir=' + data_dir()])
          assert_equal(set(node.listwallets()), {"w4", "w5"})
          w5 = wallet("w5")
          w5_info = w5.getwalletinfo()
          assert_equal(w5_info['immature_balance'], 50)
  
          self.stop_node(0)
  
          self.start_node(0, self.extra_args[0])
  
          w1 = wallet("w1")
          w2 = wallet("w2")
          w3 = wallet("w3")
          w4 = wallet("w")
          wallet_bad = wallet("bad")
  
          w1.generate(1)
  
          # accessing invalid wallet fails
          assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
  
          # accessing wallet RPC without using wallet endpoint fails
          assert_raises_rpc_error(-19, "Wallet file not specified", node.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")
  
          w4_name = w4.getwalletinfo()['walletname']
          assert_equal(w4_name, "w")
  
          w1.generate(101)
          assert_equal(w1.getbalance(), 100)
          assert_equal(w2.getbalance(), 0)
          assert_equal(w3.getbalance(), 0)
          assert_equal(w4.getbalance(), 0)
  
          w1.sendtoaddress(w2.getnewaddress(), 1)
          w1.sendtoaddress(w3.getnewaddress(), 2)
          w1.sendtoaddress(w4.getnewaddress(), 3)
          w1.generate(1)
          assert_equal(w2.getbalance(), 1)
          assert_equal(w3.getbalance(), 2)
          assert_equal(w4.getbalance(), 3)
  
          batch = w1.batch([w1.getblockchaininfo.get_request(), w1.getwalletinfo.get_request()])
          assert_equal(batch[0]["result"]["chain"], "regtest")
          assert_equal(batch[1]["result"]["walletname"], "w1")
  
  if __name__ == '__main__':
      MultiWalletTest().main()
  