text: #!/usr/bin/env python3
  # Copyright (c) 2014-2016 The Bitcoin Core developers
  # Copyright (c) 2014-2019 The Mincoin Core developers
  # Distributed under the MIT software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  # Exercise the listtransactions API
  
  from test_framework.test_framework import MincoinTestFramework
  from test_framework.util import *
  from test_framework.mininode import CTransaction, COIN
  from io import BytesIO
  
  def txFromHex(hexstring):
      tx = CTransaction()
      f = BytesIO(hex_str_to_bytes(hexstring))
      tx.deserialize(f)
      return tx
  
  class ListTransactionsTest(MincoinTestFramework):
      def __init__(self):
          super().__init__()
          self.num_nodes = 4
          self.setup_clean_chain = False
  
      def setup_nodes(self):
          #This test requires mocktime
          enable_mocktime()
          return start_nodes(self.num_nodes, self.options.tmpdir)
  
      def run_test(self):
          # Simple send, 0 to 1:
          txid = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
          self.sync_all()
          assert_array_result(self.nodes[0].listtransactions(),
                             {"txid":txid},
                             {"category":"send","account":"","amount":Decimal("-0.1"),"confirmations":0})
          assert_array_result(self.nodes[1].listtransactions(),
                             {"txid":txid},
                             {"category":"receive","account":"","amount":Decimal("0.1"),"confirmations":0})
          # mine a block, confirmations should change:
          self.nodes[0].generate(1)
          self.sync_all()
          assert_array_result(self.nodes[0].listtransactions(),
                             {"txid":txid},
                             {"category":"send","account":"","amount":Decimal("-0.1"),"confirmations":1})
          assert_array_result(self.nodes[1].listtransactions(),
                             {"txid":txid},
                             {"category":"receive","account":"","amount":Decimal("0.1"),"confirmations":1})
  
          # send-to-self:
          txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 0.2)
          assert_array_result(self.nodes[0].listtransactions(),
                             {"txid":txid, "category":"send"},
                             {"amount":Decimal("-0.2")})
          assert_array_result(self.nodes[0].listtransactions(),
                             {"txid":txid, "category":"receive"},
                             {"amount":Decimal("0.2")})
  
          # sendmany from node1: twice to self, twice to node2:
          send_to = { self.nodes[0].getnewaddress() : 0.11,
                      self.nodes[1].getnewaddress() : 0.22,
                      self.nodes[0].getaccountaddress("from1") : 0.33,
                      self.nodes[1].getaccountaddress("toself") : 0.44 }
          txid = self.nodes[1].sendmany("", send_to)
          self.sync_all()
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"send","amount":Decimal("-0.11")},
                             {"txid":txid} )
          assert_array_result(self.nodes[0].listtransactions(),
                             {"category":"receive","amount":Decimal("0.11")},
                             {"txid":txid} )
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"send","amount":Decimal("-0.22")},
                             {"txid":txid} )
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"receive","amount":Decimal("0.22")},
                             {"txid":txid} )
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"send","amount":Decimal("-0.33")},
                             {"txid":txid} )
          assert_array_result(self.nodes[0].listtransactions(),
                             {"category":"receive","amount":Decimal("0.33")},
                             {"txid":txid, "account" : "from1"} )
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"send","amount":Decimal("-0.44")},
                             {"txid":txid, "account" : ""} )
          assert_array_result(self.nodes[1].listtransactions(),
                             {"category":"receive","amount":Decimal("0.44")},
                             {"txid":txid, "account" : "toself"} )
  
          multisig = self.nodes[1].createmultisig(1, [self.nodes[1].getnewaddress()])
          self.nodes[0].importaddress(multisig["redeemScript"], "watchonly", False, True)
          txid = self.nodes[1].sendtoaddress(multisig["address"], 0.1)
          self.nodes[1].generate(1)
          self.sync_all()
          assert(len(self.nodes[0].listtransactions("watchonly", 100, 0, False)) == 0)
          assert_array_result(self.nodes[0].listtransactions("watchonly", 100, 0, True),
                             {"category":"receive","amount":Decimal("0.1")},
                             {"txid":txid, "account" : "watchonly"} )
  
          self.run_rbf_opt_in_test()
  
      # Check that the opt-in-rbf flag works properly, for sent and received
      # transactions.
      def run_rbf_opt_in_test(self):
          # Check whether a transaction signals opt-in RBF itself
          def is_opt_in(node, txid):
              rawtx = node.getrawtransaction(txid, 1)
              for x in rawtx["vin"]:
                  if x["sequence"] < 0xfffffffe:
                      return True
              return False
  
          # Find an unconfirmed output matching a certain txid
          def get_unconfirmed_utxo_entry(node, txid_to_match):
              utxo = node.listunspent(0, 0)
              for i in utxo:
                  if i["txid"] == txid_to_match:
                      return i
              return None
  
          # 1. Chain a few transactions that don't opt-in.
          txid_1 = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 1)
          assert(not is_opt_in(self.nodes[0], txid_1))
          assert_array_result(self.nodes[0].listtransactions(), {"txid": txid_1}, {"bip125-replaceable":"no"})
          sync_mempools(self.nodes)
          assert_array_result(self.nodes[1].listtransactions(), {"txid": txid_1}, {"bip125-replaceable":"no"})
  
          # Tx2 will build off txid_1, still not opting in to RBF.
          utxo_to_use = get_unconfirmed_utxo_entry(self.nodes[1], txid_1)
  
          # Create tx2 using createrawtransaction
          inputs = [{"txid":utxo_to_use["txid"], "vout":utxo_to_use["vout"]}]
          outputs = {self.nodes[0].getnewaddress(): 0.999}
          tx2 = self.nodes[1].createrawtransaction(inputs, outputs)
          tx2_signed = self.nodes[1].signrawtransaction(tx2)["hex"]
          txid_2 = self.nodes[1].sendrawtransaction(tx2_signed)
  
          # ...and check the result
          assert(not is_opt_in(self.nodes[1], txid_2))
          assert_array_result(self.nodes[1].listtransactions(), {"txid": txid_2}, {"bip125-replaceable":"no"})
          sync_mempools(self.nodes)
          assert_array_result(self.nodes[0].listtransactions(), {"txid": txid_2}, {"bip125-replaceable":"no"})
  
          # Tx3 will opt-in to RBF
          utxo_to_use = get_unconfirmed_utxo_entry(self.nodes[0], txid_2)
          inputs = [{"txid": txid_2, "vout":utxo_to_use["vout"]}]
          outputs = {self.nodes[1].getnewaddress(): 0.998}
          tx3 = self.nodes[0].createrawtransaction(inputs, outputs)
          tx3_modified = txFromHex(tx3)
          tx3_modified.vin[0].nSequence = 0
          tx3 = bytes_to_hex_str(tx3_modified.serialize())
          tx3_signed = self.nodes[0].signrawtransaction(tx3)['hex']
          txid_3 = self.nodes[0].sendrawtransaction(tx3_signed)
  
          assert(is_opt_in(self.nodes[0], txid_3))
          assert_array_result(self.nodes[0].listtransactions(), {"txid": txid_3}, {"bip125-replaceable":"yes"})
          sync_mempools(self.nodes)
          assert_array_result(self.nodes[1].listtransactions(), {"txid": txid_3}, {"bip125-replaceable":"yes"})
  
          # Tx4 will chain off tx3.  Doesn't signal itself, but depends on one
          # that does.
          utxo_to_use = get_unconfirmed_utxo_entry(self.nodes[1], txid_3)
          inputs = [{"txid": txid_3, "vout":utxo_to_use["vout"]}]
          outputs = {self.nodes[0].getnewaddress(): 0.997}
          tx4 = self.nodes[1].createrawtransaction(inputs, outputs)
          tx4_signed = self.nodes[1].signrawtransaction(tx4)["hex"]
          txid_4 = self.nodes[1].sendrawtransaction(tx4_signed)
  
          assert(not is_opt_in(self.nodes[1], txid_4))
          assert_array_result(self.nodes[1].listtransactions(), {"txid": txid_4}, {"bip125-replaceable":"yes"})
          sync_mempools(self.nodes)
          assert_array_result(self.nodes[0].listtransactions(), {"txid": txid_4}, {"bip125-replaceable":"yes"})
  
          # Replace tx3, and check that tx4 becomes unknown
          tx3_b = tx3_modified
          tx3_b.vout[0].nValue -= int(Decimal("0.004") * COIN) # bump the fee
          tx3_b = bytes_to_hex_str(tx3_b.serialize())
          tx3_b_signed = self.nodes[0].signrawtransaction(tx3_b)['hex']
          txid_3b = self.nodes[0].sendrawtransaction(tx3_b_signed, True)
          assert(is_opt_in(self.nodes[0], txid_3b))
  
          assert_array_result(self.nodes[0].listtransactions(), {"txid": txid_4}, {"bip125-replaceable":"unknown"})
          sync_mempools(self.nodes)
          assert_array_result(self.nodes[1].listtransactions(), {"txid": txid_4}, {"bip125-replaceable":"unknown"})
  
          # Check gettransaction as well:
          for n in self.nodes[0:2]:
              assert_equal(n.gettransaction(txid_1)["bip125-replaceable"], "no")
              assert_equal(n.gettransaction(txid_2)["bip125-replaceable"], "no")
              assert_equal(n.gettransaction(txid_3)["bip125-replaceable"], "yes")
              assert_equal(n.gettransaction(txid_3b)["bip125-replaceable"], "yes")
              assert_equal(n.gettransaction(txid_4)["bip125-replaceable"], "unknown")
  
          # After mining a transaction, it's no longer BIP125-replaceable
          self.nodes[0].generate(1)
          assert(txid_3b not in self.nodes[0].getrawmempool())
          assert_equal(self.nodes[0].gettransaction(txid_3b)["bip125-replaceable"], "no")
          assert_equal(self.nodes[0].gettransaction(txid_4)["bip125-replaceable"], "unknown")
  
  
  if __name__ == '__main__':
      ListTransactionsTest().main()
  
  