text: #!/usr/bin/env python3
  # Copyright (c) 2014-2017 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 mempool limiting together/eviction with the wallet."""
  
  from test_framework.test_framework import AltecoinTestFramework
  from test_framework.util import *
  
  class MempoolLimitTest(AltecoinTestFramework):
      def set_test_params(self):
          self.setup_clean_chain = True
          self.num_nodes = 1
          self.extra_args = [["-maxmempool=5", "-spendzeroconfchange=0"]]
  
      def run_test(self):
          txouts = gen_return_txouts()
          relayfee = self.nodes[0].getnetworkinfo()['relayfee']
  
          self.log.info('Check that mempoolminfee is minrelytxfee')
          assert_equal(self.nodes[0].getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
          assert_equal(self.nodes[0].getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
  
          txids = []
          utxos = create_confirmed_utxos(relayfee, self.nodes[0], 91)
  
          self.log.info('Create a mempool tx that will be evicted')
          us0 = utxos.pop()
          inputs = [{ "txid" : us0["txid"], "vout" : us0["vout"]}]
          outputs = {self.nodes[0].getnewaddress() : 0.0001}
          tx = self.nodes[0].createrawtransaction(inputs, outputs)
          self.nodes[0].settxfee(relayfee) # specifically fund this tx with low fee
          txF = self.nodes[0].fundrawtransaction(tx)
          self.nodes[0].settxfee(0) # return to automatic fee selection
          txFS = self.nodes[0].signrawtransaction(txF['hex'])
          txid = self.nodes[0].sendrawtransaction(txFS['hex'])
  
          relayfee = self.nodes[0].getnetworkinfo()['relayfee']
          base_fee = relayfee*100
          for i in range (3):
              txids.append([])
              txids[i] = create_lots_of_big_transactions(self.nodes[0], txouts, utxos[30*i:30*i+30], 30, (i+1)*base_fee)
  
          self.log.info('The tx should be evicted by now')
          assert(txid not in self.nodes[0].getrawmempool())
          txdata = self.nodes[0].gettransaction(txid)
          assert(txdata['confirmations'] ==  0) #confirmation should still be 0
  
          self.log.info('Check that mempoolminfee is larger than minrelytxfee')
          assert_equal(self.nodes[0].getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
          assert_greater_than(self.nodes[0].getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
  
  if __name__ == '__main__':
      MempoolLimitTest().main()
  