text: #!/usr/bin/env python3
  # Copyright (c) 2020-2021 The Bitcoin and Qogecoin Core Authors
  # Distributed under the MIT software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  """Test transaction relay behavior during IBD:
  - Set fee filters to MAX_MONEY
  - Don't request transactions
  - Ignore all transaction messages
  """
  
  from decimal import Decimal
  import time
  
  from test_framework.messages import (
          CInv,
          COIN,
          CTransaction,
          from_hex,
          msg_inv,
          msg_tx,
          MSG_WTX,
  )
  from test_framework.p2p import (
          NONPREF_PEER_TX_DELAY,
          P2PDataStore,
          P2PInterface,
          p2p_lock
  )
  from test_framework.test_framework import QogecoinTestFramework
  
  MAX_FEE_FILTER = Decimal(9170997) / COIN
  NORMAL_FEE_FILTER = Decimal(100) / COIN
  
  
  class P2PIBDTxRelayTest(QogecoinTestFramework):
      def set_test_params(self):
          self.setup_clean_chain = True
          self.num_nodes = 2
          self.extra_args = [
              ["-minrelaytxfee={}".format(NORMAL_FEE_FILTER)],
              ["-minrelaytxfee={}".format(NORMAL_FEE_FILTER)],
          ]
  
      def run_test(self):
          self.log.info("Check that nodes set minfilter to MAX_MONEY while still in IBD")
          for node in self.nodes:
              assert node.getblockchaininfo()['initialblockdownload']
              self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER for peer in node.getpeerinfo()))
  
          self.log.info("Check that nodes don't send getdatas for transactions while still in IBD")
          peer_inver = self.nodes[0].add_p2p_connection(P2PDataStore())
          txid = 0xdeadbeef
          peer_inver.send_and_ping(msg_inv([CInv(t=MSG_WTX, h=txid)]))
          # The node should not send a getdata, but if it did, it would first delay 2 seconds
          self.nodes[0].setmocktime(int(time.time() + NONPREF_PEER_TX_DELAY))
          peer_inver.sync_send_with_ping()
          with p2p_lock:
              assert txid not in peer_inver.getdata_requests
          self.nodes[0].disconnect_p2ps()
  
          self.log.info("Check that nodes don't process unsolicited transactions while still in IBD")
          # A transaction hex pulled from tx_valid.json. There are no valid transactions since no UTXOs
          # exist yet, but it should be a well-formed transaction.
          rawhex = "0100000001b14bdcbc3e01bdaad36cc08e81e69c82e1060bc14e518db2b49aa43ad90ba260000000004a01ff473" + \
              "04402203f16c6f40162ab686621ef3000b04e75418a0c0cb2d8aebeac894ae360ac1e780220ddc15ecdfc3507ac48e168" + \
              "1a33eb60996631bf6bf5bc0a0682c4db743ce7ca2b01ffffffff0140420f00000000001976a914660d4ef3a743e3e696a" + \
              "d990364e555c271ad504b88ac00000000"
          assert self.nodes[1].decoderawtransaction(rawhex) # returns a dict, should not throw
          tx = from_hex(CTransaction(), rawhex)
          peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
          with self.nodes[0].assert_debug_log(expected_msgs=["received: tx"], unexpected_msgs=["was not accepted"]):
              peer_txer.send_and_ping(msg_tx(tx))
          self.nodes[0].disconnect_p2ps()
  
          # Come out of IBD by generating a block
          self.generate(self.nodes[0], 1)
  
          self.log.info("Check that nodes reset minfilter after coming out of IBD")
          for node in self.nodes:
              assert not node.getblockchaininfo()['initialblockdownload']
              self.wait_until(lambda: all(peer['minfeefilter'] == NORMAL_FEE_FILTER for peer in node.getpeerinfo()))
  
          self.log.info("Check that nodes process the same transaction, even when unsolicited, when no longer in IBD")
          peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
          with self.nodes[0].assert_debug_log(expected_msgs=["was not accepted"]):
              peer_txer.send_and_ping(msg_tx(tx))
  
  if __name__ == '__main__':
      P2PIBDTxRelayTest().main()
  