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Diffstat (limited to 'test/functional/wallet_conflicts.py')
| -rwxr-xr-x | test/functional/wallet_conflicts.py | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/test/functional/wallet_conflicts.py b/test/functional/wallet_conflicts.py index 802b718cd5..e5739a6a59 100755 --- a/test/functional/wallet_conflicts.py +++ b/test/functional/wallet_conflicts.py @@ -9,6 +9,7 @@ Test that wallet correctly tracks transactions that have been conflicted by bloc from decimal import Decimal +from test_framework.blocktools import COINBASE_MATURITY from test_framework.test_framework import BitcoinTestFramework from test_framework.util import ( assert_equal, @@ -28,6 +29,20 @@ class TxConflicts(BitcoinTestFramework): return next(tx_out["vout"] for tx_out in self.nodes[0].gettransaction(from_tx_id)["details"] if tx_out["amount"] == Decimal(f"{search_value}")) def run_test(self): + """ + The following tests check the behavior of the wallet when + transaction conflicts are created. These conflicts are created + using raw transaction RPCs that double-spend UTXOs and have more + fees, replacing the original transaction. + """ + + self.test_block_conflicts() + self.generatetoaddress(self.nodes[0], COINBASE_MATURITY + 7, self.nodes[2].getnewaddress()) + self.test_mempool_conflict() + self.test_mempool_and_block_conflicts() + self.test_descendants_with_mempool_conflicts() + + def test_block_conflicts(self): self.log.info("Send tx from which to conflict outputs later") txid_conflict_from_1 = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), Decimal("10")) txid_conflict_from_2 = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), Decimal("10")) @@ -123,5 +138,291 @@ class TxConflicts(BitcoinTestFramework): assert_equal(former_conflicted["confirmations"], 1) assert_equal(former_conflicted["blockheight"], 217) + def test_mempool_conflict(self): + self.nodes[0].createwallet("alice") + alice = self.nodes[0].get_wallet_rpc("alice") + + bob = self.nodes[1] + + self.nodes[2].send(outputs=[{alice.getnewaddress() : 25} for _ in range(3)]) + self.generate(self.nodes[2], 1) + + self.log.info("Test a scenario where a transaction has a mempool conflict") + + unspents = alice.listunspent() + assert_equal(len(unspents), 3) + assert all([tx["amount"] == 25 for tx in unspents]) + + # tx1 spends unspent[0] and unspent[1] + raw_tx = alice.createrawtransaction(inputs=[unspents[0], unspents[1]], outputs=[{bob.getnewaddress() : 49.9999}]) + tx1 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + # tx2 spends unspent[1] and unspent[2], conflicts with tx1 + raw_tx = alice.createrawtransaction(inputs=[unspents[1], unspents[2]], outputs=[{bob.getnewaddress() : 49.99}]) + tx2 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + # tx3 spends unspent[2], conflicts with tx2 + raw_tx = alice.createrawtransaction(inputs=[unspents[2]], outputs=[{bob.getnewaddress() : 24.9899}]) + tx3 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + # broadcast tx1 + tx1_txid = alice.sendrawtransaction(tx1) + + assert_equal(alice.listunspent(), [unspents[2]]) + assert_equal(alice.getbalance(), 25) + + # broadcast tx2, replaces tx1 in mempool + tx2_txid = alice.sendrawtransaction(tx2) + + # Check that unspent[0] is now available because the transaction spending it has been replaced in the mempool + assert_equal(alice.listunspent(), [unspents[0]]) + assert_equal(alice.getbalance(), 25) + + assert_equal(alice.gettransaction(tx1_txid)["mempoolconflicts"], [tx2_txid]) + + self.log.info("Test scenario where a mempool conflict is removed") + + # broadcast tx3, replaces tx2 in mempool + # Now that tx1's conflict has been removed, tx1 is now + # not conflicted, and instead is inactive until it is + # rebroadcasted. Now unspent[0] is not available, because + # tx1 is no longer conflicted. + alice.sendrawtransaction(tx3) + + assert_equal(alice.gettransaction(tx1_txid)["mempoolconflicts"], []) + assert tx1_txid not in self.nodes[0].getrawmempool() + + # now all of alice's outputs should be considered spent + # unspent[0]: spent by inactive tx1 + # unspent[1]: spent by inactive tx1 + # unspent[2]: spent by active tx3 + assert_equal(alice.listunspent(), []) + assert_equal(alice.getbalance(), 0) + + # Clean up for next test + bob.sendall([self.nodes[2].getnewaddress()]) + self.generate(self.nodes[2], 1) + + alice.unloadwallet() + + def test_mempool_and_block_conflicts(self): + self.nodes[0].createwallet("alice_2") + alice = self.nodes[0].get_wallet_rpc("alice_2") + bob = self.nodes[1] + + self.nodes[2].send(outputs=[{alice.getnewaddress() : 25} for _ in range(3)]) + self.generate(self.nodes[2], 1) + + self.log.info("Test a scenario where a transaction has both a block conflict and a mempool conflict") + unspents = [{"txid" : element["txid"], "vout" : element["vout"]} for element in alice.listunspent()] + + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + + # alice and bob nodes are disconnected so that transactions can be + # created by alice, but broadcasted from bob so that alice's wallet + # doesn't know about them + self.disconnect_nodes(0, 1) + + # Sends funds to bob + raw_tx = alice.createrawtransaction(inputs=[unspents[0]], outputs=[{bob.getnewaddress() : 24.99999}]) + raw_tx1 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + tx1_txid = bob.sendrawtransaction(raw_tx1) # broadcast original tx spending unspents[0] only to bob + + # create a conflict to previous tx (also spends unspents[0]), but don't broadcast, sends funds back to alice + raw_tx = alice.createrawtransaction(inputs=[unspents[0], unspents[2]], outputs=[{alice.getnewaddress() : 49.999}]) + tx1_conflict = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + # Sends funds to bob + raw_tx = alice.createrawtransaction(inputs=[unspents[1]], outputs=[{bob.getnewaddress() : 24.9999}]) + raw_tx2 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + tx2_txid = bob.sendrawtransaction(raw_tx2) # broadcast another original tx spending unspents[1] only to bob + + # create a conflict to previous tx (also spends unspents[1]), but don't broadcast, sends funds to alice + raw_tx = alice.createrawtransaction(inputs=[unspents[1]], outputs=[{alice.getnewaddress() : 24.9999}]) + tx2_conflict = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + bob_unspents = [{"txid" : element, "vout" : 0} for element in [tx1_txid, tx2_txid]] + + # tx1 and tx2 are now in bob's mempool, and they are unconflicted, so bob has these funds + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("49.99989000")) + + # spend both of bob's unspents, child tx of tx1 and tx2 + raw_tx = bob.createrawtransaction(inputs=[bob_unspents[0], bob_unspents[1]], outputs=[{bob.getnewaddress() : 49.999}]) + raw_tx3 = bob.signrawtransactionwithwallet(raw_tx)['hex'] + tx3_txid = bob.sendrawtransaction(raw_tx3) # broadcast tx only to bob + + # alice knows about 0 txs, bob knows about 3 + assert_equal(len(alice.getrawmempool()), 0) + assert_equal(len(bob.getrawmempool()), 3) + + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("49.99900000")) + + # bob broadcasts tx_1 conflict + tx1_conflict_txid = bob.sendrawtransaction(tx1_conflict) + assert_equal(len(alice.getrawmempool()), 0) + assert_equal(len(bob.getrawmempool()), 2) # tx1_conflict kicks out both tx1, and its child tx3 + + assert tx2_txid in bob.getrawmempool() + assert tx1_conflict_txid in bob.getrawmempool() + + assert_equal(bob.gettransaction(tx1_txid)["mempoolconflicts"], [tx1_conflict_txid]) + assert_equal(bob.gettransaction(tx2_txid)["mempoolconflicts"], []) + assert_equal(bob.gettransaction(tx3_txid)["mempoolconflicts"], [tx1_conflict_txid]) + + # check that tx3 is now conflicted, so the output from tx2 can now be spent + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("24.99990000")) + + # we will be disconnecting this block in the future + alice.sendrawtransaction(tx2_conflict) + assert_equal(len(alice.getrawmempool()), 1) # currently alice's mempool is only aware of tx2_conflict + # 11 blocks are mined so that when they are invalidated, tx_2 + # does not get put back into the mempool + blk = self.generate(self.nodes[0], 11, sync_fun=self.no_op)[0] + assert_equal(len(alice.getrawmempool()), 0) # tx2_conflict is now mined + + self.connect_nodes(0, 1) + self.sync_blocks() + assert_equal(alice.getbestblockhash(), bob.getbestblockhash()) + + # now that tx2 has a block conflict, tx1_conflict should be the only tx in bob's mempool + assert tx1_conflict_txid in bob.getrawmempool() + assert_equal(len(bob.getrawmempool()), 1) + + # tx3 should now also be block-conflicted by tx2_conflict + assert_equal(bob.gettransaction(tx3_txid)["confirmations"], -11) + # bob has no pending funds, since tx1, tx2, and tx3 are all conflicted + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + bob.invalidateblock(blk) # remove tx2_conflict + # bob should still have no pending funds because tx1 and tx3 are still conflicted, and tx2 has not been re-broadcast + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + assert_equal(len(bob.getrawmempool()), 1) + # check that tx3 is no longer block-conflicted + assert_equal(bob.gettransaction(tx3_txid)["confirmations"], 0) + + bob.sendrawtransaction(raw_tx2) + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("24.99990000")) + + # create a conflict to previous tx (also spends unspents[2]), but don't broadcast, sends funds back to alice + raw_tx = alice.createrawtransaction(inputs=[unspents[2]], outputs=[{alice.getnewaddress() : 24.99}]) + tx1_conflict_conflict = alice.signrawtransactionwithwallet(raw_tx)['hex'] + + bob.sendrawtransaction(tx1_conflict_conflict) # kick tx1_conflict out of the mempool + bob.sendrawtransaction(raw_tx1) #re-broadcast tx1 because it is no longer conflicted + + # Now bob has no pending funds because tx1 and tx2 are spent by tx3, which hasn't been re-broadcast yet + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + + bob.sendrawtransaction(raw_tx3) + assert_equal(len(bob.getrawmempool()), 4) # The mempool contains: tx1, tx2, tx1_conflict_conflict, tx3 + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("49.99900000")) + + # Clean up for next test + bob.reconsiderblock(blk) + assert_equal(alice.getbestblockhash(), bob.getbestblockhash()) + self.sync_mempools() + self.generate(self.nodes[2], 1) + + alice.unloadwallet() + + def test_descendants_with_mempool_conflicts(self): + self.nodes[0].createwallet("alice_3") + alice = self.nodes[0].get_wallet_rpc("alice_3") + + self.nodes[2].send(outputs=[{alice.getnewaddress() : 25} for _ in range(2)]) + self.generate(self.nodes[2], 1) + + self.nodes[1].createwallet("bob_1") + bob = self.nodes[1].get_wallet_rpc("bob_1") + + self.nodes[2].createwallet("carol") + carol = self.nodes[2].get_wallet_rpc("carol") + + self.log.info("Test a scenario where a transaction's parent has a mempool conflict") + + unspents = alice.listunspent() + assert_equal(len(unspents), 2) + assert all([tx["amount"] == 25 for tx in unspents]) + + assert_equal(alice.getrawmempool(), []) + + # Alice spends first utxo to bob in tx1 + raw_tx = alice.createrawtransaction(inputs=[unspents[0]], outputs=[{bob.getnewaddress() : 24.9999}]) + tx1 = alice.signrawtransactionwithwallet(raw_tx)['hex'] + tx1_txid = alice.sendrawtransaction(tx1) + + self.sync_mempools() + + assert_equal(alice.getbalance(), 25) + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], Decimal("24.99990000")) + + assert_equal(bob.gettransaction(tx1_txid)["mempoolconflicts"], []) + + raw_tx = bob.createrawtransaction(inputs=[bob.listunspent(minconf=0)[0]], outputs=[{carol.getnewaddress() : 24.999}]) + # Bob creates a child to tx1 + tx1_child = bob.signrawtransactionwithwallet(raw_tx)['hex'] + tx1_child_txid = bob.sendrawtransaction(tx1_child) + + self.sync_mempools() + + # Currently neither tx1 nor tx1_child should have any conflicts + assert_equal(bob.gettransaction(tx1_txid)["mempoolconflicts"], []) + assert_equal(bob.gettransaction(tx1_child_txid)["mempoolconflicts"], []) + assert tx1_txid in bob.getrawmempool() + assert tx1_child_txid in bob.getrawmempool() + assert_equal(len(bob.getrawmempool()), 2) + + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + assert_equal(carol.getbalances()["mine"]["untrusted_pending"], Decimal("24.99900000")) + + # Alice spends first unspent again, conflicting with tx1 + raw_tx = alice.createrawtransaction(inputs=[unspents[0], unspents[1]], outputs=[{carol.getnewaddress() : 49.99}]) + tx1_conflict = alice.signrawtransactionwithwallet(raw_tx)['hex'] + tx1_conflict_txid = alice.sendrawtransaction(tx1_conflict) + + self.sync_mempools() + + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + assert_equal(carol.getbalances()["mine"]["untrusted_pending"], Decimal("49.99000000")) + + assert tx1_txid not in bob.getrawmempool() + assert tx1_child_txid not in bob.getrawmempool() + assert tx1_conflict_txid in bob.getrawmempool() + assert_equal(len(bob.getrawmempool()), 1) + + # Now both tx1 and tx1_child are conflicted by tx1_conflict + assert_equal(bob.gettransaction(tx1_txid)["mempoolconflicts"], [tx1_conflict_txid]) + assert_equal(bob.gettransaction(tx1_child_txid)["mempoolconflicts"], [tx1_conflict_txid]) + + # Now create a conflict to tx1_conflict, so that it gets kicked out of the mempool + raw_tx = alice.createrawtransaction(inputs=[unspents[1]], outputs=[{carol.getnewaddress() : 24.9895}]) + tx1_conflict_conflict = alice.signrawtransactionwithwallet(raw_tx)['hex'] + tx1_conflict_conflict_txid = alice.sendrawtransaction(tx1_conflict_conflict) + + self.sync_mempools() + + # Now that tx1_conflict has been removed, both tx1 and tx1_child + assert_equal(bob.gettransaction(tx1_txid)["mempoolconflicts"], []) + assert_equal(bob.gettransaction(tx1_child_txid)["mempoolconflicts"], []) + + # Both tx1 and tx1_child are still not in the mempool because they have not be re-broadcasted + assert tx1_txid not in bob.getrawmempool() + assert tx1_child_txid not in bob.getrawmempool() + assert tx1_conflict_txid not in bob.getrawmempool() + assert tx1_conflict_conflict_txid in bob.getrawmempool() + assert_equal(len(bob.getrawmempool()), 1) + + assert_equal(alice.getbalance(), 0) + assert_equal(bob.getbalances()["mine"]["untrusted_pending"], 0) + assert_equal(carol.getbalances()["mine"]["untrusted_pending"], Decimal("24.98950000")) + + # Both tx1 and tx1_child can now be re-broadcasted + bob.sendrawtransaction(tx1) + bob.sendrawtransaction(tx1_child) + assert_equal(len(bob.getrawmempool()), 3) + + alice.unloadwallet() + bob.unloadwallet() + carol.unloadwallet() + if __name__ == '__main__': TxConflicts().main() |