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## Issue being fixed or feature implemented Execute command when the best chainlock changes (`%s` in cmd is replaced by chainlocked block hash). Same as `-blocknotify` but for chainlocks. Let `-instantsendnotify` replace `%w` with wallet name like `-walletnotify` does. ## What was done? ## How Has This Been Tested? run tests ## Breaking Changes n/a ## Checklist: - [x] I have performed a self-review of my own code - [ ] I have commented my code, particularly in hard-to-understand areas - [ ] I have added or updated relevant unit/integration/functional/e2e tests - [ ] I have made corresponding changes to the documentation - [x] I have assigned this pull request to a milestone
144 lines
6.2 KiB
Python
Executable File
144 lines
6.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2018-2022 The Dash Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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from test_framework.test_framework import DashTestFramework
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from test_framework.util import assert_equal, assert_raises_rpc_error
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'''
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p2p_instantsend.py
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Tests InstantSend functionality (prevent doublespend for unconfirmed transactions)
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'''
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class InstantSendTest(DashTestFramework):
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def set_test_params(self):
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self.set_dash_test_params(7, 3, fast_dip3_enforcement=True)
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# set sender, receiver, isolated nodes
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self.isolated_idx = 1
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self.receiver_idx = 2
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self.sender_idx = 3
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def run_test(self):
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self.nodes[0].sporkupdate("SPORK_17_QUORUM_DKG_ENABLED", 0)
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self.wait_for_sporks_same()
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self.mine_quorum()
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self.nodes[self.isolated_idx].createwallet(self.default_wallet_name)
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self.nodes[self.receiver_idx].createwallet(self.default_wallet_name)
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self.nodes[self.sender_idx].createwallet(self.default_wallet_name)
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self.test_mempool_doublespend()
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self.test_block_doublespend()
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def test_block_doublespend(self):
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sender = self.nodes[self.sender_idx]
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receiver = self.nodes[self.receiver_idx]
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isolated = self.nodes[self.isolated_idx]
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# feed the sender with some balance
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sender_addr = sender.getnewaddress()
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is_id = self.nodes[0].sendtoaddress(sender_addr, 1)
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for node in self.nodes:
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self.wait_for_instantlock(is_id, node)
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self.bump_mocktime(1)
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self.nodes[0].generate(2)
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self.sync_all()
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# create doublespending transaction, but don't relay it
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dblspnd_tx = self.create_raw_tx(sender, isolated, 0.5, 1, 100)
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# isolate one node from network
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self.isolate_node(self.isolated_idx)
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# instantsend to receiver
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receiver_addr = receiver.getnewaddress()
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is_id = sender.sendtoaddress(receiver_addr, 0.9)
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# wait for the transaction to propagate
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connected_nodes = self.nodes.copy()
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del connected_nodes[self.isolated_idx]
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self.sync_mempools(connected_nodes)
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for node in connected_nodes:
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self.wait_for_instantlock(is_id, node)
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# send doublespend transaction to isolated node
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dblspnd_txid = isolated.sendrawtransaction(dblspnd_tx['hex'])
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# generate block on isolated node with doublespend transaction
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self.bump_mocktime(599)
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wrong_early_block = isolated.generate(1)[0]
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assert not "confirmation" in isolated.getrawtransaction(dblspnd_txid, 1)
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isolated.invalidateblock(wrong_early_block)
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self.bump_mocktime(1)
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wrong_block = isolated.generate(1)[0]
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assert_equal(isolated.getrawtransaction(dblspnd_txid, 1)["confirmations"], 1)
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# connect isolated block to network
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self.reconnect_isolated_node(self.isolated_idx, 0)
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# check doublespend block is rejected by other nodes
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timeout = 10
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for idx, node in enumerate(self.nodes):
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if idx == self.isolated_idx:
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continue
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res = node.waitforblock(wrong_block, timeout)
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assert res['hash'] != wrong_block
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# wait for long time only for first node
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timeout = 1
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# send coins back to the controller node without waiting for confirmations
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receiver.sendtoaddress(self.nodes[0].getnewaddress(), 0.9, "", "", True)
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assert_equal(receiver.getwalletinfo()["balance"], 0)
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# mine more blocks
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# TODO: mine these blocks on an isolated node
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self.bump_mocktime(1)
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# make sure the above TX is on node0
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self.sync_mempools([n for n in self.nodes if n is not isolated])
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self.nodes[0].generate(2)
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self.sync_all()
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def test_mempool_doublespend(self):
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sender = self.nodes[self.sender_idx]
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receiver = self.nodes[self.receiver_idx]
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isolated = self.nodes[self.isolated_idx]
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connected_nodes = self.nodes.copy()
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del connected_nodes[self.isolated_idx]
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# feed the sender with some balance
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sender_addr = sender.getnewaddress()
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is_id = self.nodes[0].sendtoaddress(sender_addr, 1)
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for node in self.nodes:
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self.wait_for_instantlock(is_id, node)
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self.bump_mocktime(1)
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self.nodes[0].generate(2)
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self.sync_all()
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# create doublespending transaction, but don't relay it
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dblspnd_tx = self.create_raw_tx(sender, isolated, 0.5, 1, 100)
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# isolate one node from network
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self.isolate_node(self.isolated_idx)
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# send doublespend transaction to isolated node
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dblspnd_txid = isolated.sendrawtransaction(dblspnd_tx['hex'])
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assert dblspnd_txid in set(isolated.getrawmempool())
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# let isolated node rejoin the network
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# The previously isolated node should NOT relay the doublespending TX
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self.reconnect_isolated_node(self.isolated_idx, 0)
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for node in connected_nodes:
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assert_raises_rpc_error(-5, "No such mempool or blockchain transaction", node.getrawtransaction, dblspnd_txid)
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# Instantsend to receiver. The previously isolated node won't accept the tx but it should
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# request the correct TX from other nodes once the corresponding lock is received.
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# And this time the doublespend TX should be pruned once the correct tx is received.
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receiver_addr = receiver.getnewaddress()
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is_id = sender.sendtoaddress(receiver_addr, 0.9)
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# wait for the transaction to propagate
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self.sync_mempools()
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for node in self.nodes:
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self.wait_for_instantlock(is_id, node)
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assert dblspnd_txid not in set(isolated.getrawmempool())
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# send coins back to the controller node without waiting for confirmations
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sentback_id = receiver.sendtoaddress(self.nodes[0].getnewaddress(), 0.9, "", "", True)
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self.sync_mempools()
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for node in self.nodes:
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self.wait_for_instantlock(sentback_id, node)
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assert_equal(receiver.getwalletinfo()["balance"], 0)
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# mine more blocks
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self.bump_mocktime(1)
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self.nodes[0].generate(2)
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self.sync_all()
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if __name__ == '__main__':
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InstantSendTest().main()
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