message: Add test for flushing keypool with newkeypool
diff: @@ -138,6 +138,16 @@ class KeyPoolTest(BitcoinTestFramework):
  assert_equal(wi['keypoolsize_hd_internal'], 100)
  assert_equal(wi['keypoolsize'], 100)
  + if not self.options.descriptors:
  + # Check that newkeypool entirely flushes the keypool
  + start_keypath = nodes[0].getaddressinfo(nodes[0].getnewaddress())['hdkeypath']
  + nodes[0].newkeypool()
  + end_keypath = nodes[0].getaddressinfo(nodes[0].getnewaddress())['hdkeypath']
  + # The new keypath index should be 100 more than the old one
  + keypath_prefix = start_keypath.rsplit('/', 1)[0]
  + new_index = int(start_keypath.rsplit('/', 1)[1][:-1]) + 100
  + assert_equal(end_keypath, keypath_prefix + '/' + str(new_index) + '\'')
  +
  # create a blank wallet
  nodes[0].createwallet(wallet_name='w2', blank=True, disable_private_keys=True)
  w2 = nodes[0].get_wallet_rpc('w2')
  