message: test: disallow sendtoaddress/sendmany when private keys disabled
diff: # Copyright (c) 2018-2019 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 createwallet arguments.
  +"""Test createwallet watchonly arguments.
  """
  from test_framework.test_framework import BitcoinTestFramework
  @@ -49,6 +49,11 @@ class CreateWalletWatchonlyTest(BitcoinTestFramework):
  assert_equal(len(wo_wallet.listtransactions()), 1)
  assert_equal(wo_wallet.getbalance(include_watchonly=False), 0)
  + self.log.info('Test sending from a watch-only wallet raises RPC error')
  + msg = "Error: Private keys are disabled for this wallet"
  + assert_raises_rpc_error(-4, msg, wo_wallet.sendtoaddress, a1, 0.1)
  + assert_raises_rpc_error(-4, msg, wo_wallet.sendmany, amounts={a1: 0.1})
  +
  self.log.info('Testing listreceivedbyaddress watch-only defaults')
  result = wo_wallet.listreceivedbyaddress()
  assert_equal(len(result), 1)
  