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pytest: test for watching utxos over restart reorg.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell
2025-11-28 15:44:00 +10:30
parent 534e3ae8f8
commit 8caffde0fa
1 changed files with 47 additions and 2 deletions
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49
tests/test_wallet.py
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@@ -4,9 +4,9 @@ from fixtures import * # noqa: F401,F403
from fixtures import TEST_NETWORK
from pyln.client import RpcError, Millisatoshi
from utils import (
only_one, wait_for, sync_blockheight,
only_one, wait_for, sync_blockheight, mine_funding_to_announce,
VALGRIND, check_coin_moves, TailableProc, scriptpubkey_addr,
check_utxos_channel, check_feerate, did_short_sig
check_utxos_channel, check_feerate, did_short_sig, first_scid,
)
import os
@@ -2536,3 +2536,48 @@ def test_hsm_wrong_passphrase_crash(node_factory):
os.close(master_fd2)
os.close(slave_fd2)
@pytest.mark.xfail(strict=True)
def test_unspend_during_reorg(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2)
scid = first_scid(l1, l2)
blockheight, txindex, _ = scid.split('x')
# Use mainnet settings for rescan.
l3 = node_factory.get_node(options={'rescan': 15})
l3.connect(l2)
mine_funding_to_announce(bitcoind, [l1, l2, l3])
bitcoind.generate_block(20)
sync_blockheight(bitcoind, [l3])
wait_for(lambda: len(l3.rpc.listchannels()['channels']) == 2)
# db shows it unspent.
assert only_one(l1.db_query(f"SELECT spendheight as spendheight FROM utxoset WHERE blockheight={blockheight} AND txindex={txindex}"))['spendheight'] is None
# Now, l3 sees the close, marks channel dying.
l1.rpc.close(l2.info['id'])
spentheight = bitcoind.rpc.getblockcount() + 1
bitcoind.generate_block(14, wait_for_mempool=1)
wait_for(lambda: len(l3.rpc.listchannels()['channels']) == 2)
# In one fell swoop it goes through dying, to dead (12 blocks)
l3.daemon.wait_for_log(f"Adding block {spentheight}")
l3.daemon.wait_for_log(f"gossipd: channel {scid} closing soon due to the funding outpoint being spent")
l3.daemon.wait_for_log(f"gossipd: Deleting channel {scid} due to the funding outpoint being spent")
# db shows it spent
assert only_one(l3.db_query(f"SELECT spendheight as spendheight FROM utxoset WHERE blockheight={blockheight} AND txindex={txindex}"))['spendheight'] == spentheight
# Restart, see replay.
l3.stop()
# This is enough to take channel from dying to dead.
bitcoind.generate_block(10)
l3.start()
# Channel should still be dead.
l3.daemon.wait_for_log(f"Adding block {spentheight}")
sync_blockheight(bitcoind, [l3])
assert only_one(l3.db_query(f"SELECT spendheight as spendheight FROM utxoset WHERE blockheight={blockheight} AND txindex={txindex}"))['spendheight'] == spentheight