1  #!/usr/bin/env python3
 2  # Copyright (c) 2020-present The Bitcoin Core developers
 3  # Distributed under the MIT software license, see the accompanying
 4  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 5  """Test orphaned block rewards in the wallet."""
 6  
 7  from test_framework.test_framework import BitcoinTestFramework
 8  from test_framework.util import assert_equal
 9  
10  class OrphanedBlockRewardTest(BitcoinTestFramework):
11      def set_test_params(self):
12          self.setup_clean_chain = True
13          self.num_nodes = 2
14  
15      def skip_test_if_missing_module(self):
16          self.skip_if_no_wallet()
17  
18      def run_test(self):
19          # Generate some blocks and obtain some coins on node 0.  We send
20          # some balance to node 1, which will hold it as a single coin.
21          self.generate(self.nodes[0], 150)
22          self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 10)
23          self.generate(self.nodes[0], 1)
24  
25          # Get a block reward with node 1 and remember the block so we can orphan
26          # it later.
27          self.sync_blocks()
28          blk = self.generate(self.nodes[1], 1)[0]
29  
30          # Let the block reward mature and send coins including both
31          # the existing balance and the block reward.
32          self.generate(self.nodes[0], 150)
33          assert_equal(self.nodes[1].getbalance(), 10 + 25)
34          pre_reorg_conf_bals = self.nodes[1].getbalances()
35          txid = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 30)
36          orig_chain_tip = self.nodes[0].getbestblockhash()
37          self.sync_mempools()
38  
39          # Orphan the block reward and make sure that the original coins
40          # from the wallet can still be spent.
41          self.nodes[0].invalidateblock(blk)
42          blocks = self.generate(self.nodes[0], 152)
43          conflict_block = blocks[0]
44          # We expect the descendants of orphaned rewards to no longer be considered
45          assert_equal(self.nodes[1].getbalances()["mine"], {
46            "trusted": 10,
47            "untrusted_pending": 0,
48            "immature": 0,
49            "nonmempool": 0,
50          })
51          # And the unconfirmed tx to be abandoned
52          assert_equal(self.nodes[1].gettransaction(txid)["details"][0]["abandoned"], True)
53  
54          # The abandoning should persist through reloading
55          self.nodes[1].unloadwallet(self.default_wallet_name)
56          self.nodes[1].loadwallet(self.default_wallet_name)
57          assert_equal(self.nodes[1].gettransaction(txid)["details"][0]["abandoned"], True)
58  
59          # If the orphaned reward is reorged back into the main chain, any unconfirmed
60          # descendant txs at the time of the original reorg remain abandoned.
61          self.nodes[0].invalidateblock(conflict_block)
62          self.nodes[0].reconsiderblock(blk)
63          assert_equal(self.nodes[0].getbestblockhash(), orig_chain_tip)
64          self.generate(self.nodes[0], 3)
65  
66          balances = self.nodes[1].getbalances()
67          del balances["lastprocessedblock"]
68          del pre_reorg_conf_bals["lastprocessedblock"]
69          assert_equal(balances, pre_reorg_conf_bals)
70          assert_equal(self.nodes[1].gettransaction(txid)["details"][0]["abandoned"], True)
71  
72  
73  if __name__ == '__main__':
74      OrphanedBlockRewardTest(__file__).main()