259 lines
10 KiB
Python
259 lines
10 KiB
Python
import time
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from fixtures import *
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from test_framework.utils import wait_for, get_txid, spend_coins
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def get_coin(lianad, outpoint_or_txid):
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return next(
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c
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for c in lianad.rpc.listcoins()["coins"]
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if outpoint_or_txid in c["outpoint"]
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)
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def test_reorg_detection(lianad, bitcoind):
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"""Test we detect block chain reorganization under various conditions."""
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initial_height = bitcoind.rpc.getblockcount()
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# Re-mine the last block. We should detect it as a reorg.
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bitcoind.invalidate_remine(initial_height)
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lianad.wait_for_logs(
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["Block chain reorganization detected.", "Tip was rolled back."]
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)
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# Same if we re-mine the next-to-last block.
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bitcoind.invalidate_remine(initial_height - 1)
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lianad.wait_for_logs(
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["Block chain reorganization detected.", "Tip was rolled back."]
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)
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# Same if we re-mine a deep block.
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bitcoind.invalidate_remine(initial_height - 50)
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lianad.wait_for_logs(
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["Block chain reorganization detected.", "Tip was rolled back."]
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)
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# Same if the new chain is longer.
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bitcoind.simple_reorg(initial_height - 10, shift=20)
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lianad.wait_for_logs(
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["Block chain reorganization detected.", "Tip was rolled back."]
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)
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height + 10)
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def test_reorg_exclusion(lianad, bitcoind):
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"""Test the unconfirmation by a reorg of a coin in various states."""
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initial_height = bitcoind.rpc.getblockcount()
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# A confirmed received coin
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addr = lianad.rpc.getnewaddress()["address"]
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txid = bitcoind.rpc.sendtoaddress(addr, 1)
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bitcoind.generate_block(1, wait_for_mempool=txid)
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wait_for(lambda: len(lianad.rpc.listcoins()["coins"]) == 1)
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coin_a = lianad.rpc.listcoins()["coins"][0]
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# A confirmed and 'spending' (unconfirmed spend) coin
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addr = lianad.rpc.getnewaddress()["address"]
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txid = bitcoind.rpc.sendtoaddress(addr, 2)
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bitcoind.generate_block(1, wait_for_mempool=txid)
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wait_for(lambda: len(lianad.rpc.listcoins()["coins"]) == 2)
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coin_b = get_coin(lianad, txid)
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b_spend_tx = spend_coins(lianad, bitcoind, [coin_b])
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# A confirmed and spent coin
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addr = lianad.rpc.getnewaddress()["address"]
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txid = bitcoind.rpc.sendtoaddress(addr, 3)
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bitcoind.generate_block(1, wait_for_mempool=txid)
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wait_for(lambda: len(lianad.rpc.listcoins()["coins"]) == 3)
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coin_c = get_coin(lianad, txid)
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c_spend_tx = spend_coins(lianad, bitcoind, [coin_c])
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bitcoind.generate_block(1, wait_for_mempool=1)
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# Reorg the chain down to the initial height, excluding all transactions.
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current_height = bitcoind.rpc.getblockcount()
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bitcoind.simple_reorg(initial_height, shift=-1)
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == current_height + 1)
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# They must all be marked as unconfirmed.
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new_coin_a = get_coin(lianad, coin_a["outpoint"])
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assert new_coin_a["block_height"] is None
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new_coin_b = get_coin(lianad, coin_b["outpoint"])
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assert new_coin_b["block_height"] is None
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new_coin_c = get_coin(lianad, coin_c["outpoint"])
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assert new_coin_c["block_height"] is None
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# And if we now confirm everything, they'll be marked as such. The one that was 'spending'
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# will now be spent (its spending transaction will be confirmed) and the one that was spent
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# will be marked as such.
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deposit_txids = [c["outpoint"][:-2] for c in (coin_a, coin_b, coin_c)]
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for txid in deposit_txids:
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tx = bitcoind.rpc.gettransaction(txid)["hex"]
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bitcoind.rpc.sendrawtransaction(tx)
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bitcoind.rpc.sendrawtransaction(b_spend_tx)
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bitcoind.rpc.sendrawtransaction(c_spend_tx)
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bitcoind.generate_block(1, wait_for_mempool=5)
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new_height = bitcoind.rpc.getblockcount()
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == new_height)
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assert all(
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c["block_height"] == new_height for c in lianad.rpc.listcoins()["coins"]
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), (lianad.rpc.listcoins()["coins"], new_height)
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new_coin_b = next(
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c
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for c in lianad.rpc.listcoins()["coins"]
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if coin_b["outpoint"] == c["outpoint"]
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)
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b_spend_txid = get_txid(b_spend_tx)
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assert new_coin_b["spend_info"]["txid"] == b_spend_txid
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assert new_coin_b["spend_info"]["height"] == new_height
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new_coin_c = next(
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c
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for c in lianad.rpc.listcoins()["coins"]
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if coin_c["outpoint"] == c["outpoint"]
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)
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c_spend_txid = get_txid(c_spend_tx)
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assert new_coin_c["spend_info"]["txid"] == c_spend_txid
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assert new_coin_c["spend_info"]["height"] == new_height
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# TODO: maybe test with some malleation for the deposit and spending txs?
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def spend_confirmed_noticed(lianad, outpoint):
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c = get_coin(lianad, outpoint)
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if c["spend_info"] is None:
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return False
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if c["spend_info"]["height"] is None:
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return False
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return True
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def test_reorg_status_recovery(lianad, bitcoind):
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"""
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Test the coins that were not unconfirmed recover their initial state after a reorg.
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"""
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list_coins = lambda: lianad.rpc.listcoins()["coins"]
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# Create two confirmed coins. Note how we take the initial_height after having
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# mined them, as we'll reorg back to this height and due to anti fee-sniping
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# these deposit transactions might not be valid anymore!
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addresses = (lianad.rpc.getnewaddress()["address"] for _ in range(2))
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txids = [bitcoind.rpc.sendtoaddress(addr, 0.5670) for addr in addresses]
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bitcoind.generate_block(1, wait_for_mempool=txids)
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initial_height = bitcoind.rpc.getblockcount()
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == initial_height)
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# Both coins are confirmed. Spend the second one then get their infos.
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wait_for(lambda: len(list_coins()) == 2)
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wait_for(lambda: all(c["block_height"] is not None for c in list_coins()))
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coin_b = get_coin(lianad, txids[1])
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spend_coins(lianad, bitcoind, [coin_b])
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bitcoind.generate_block(1, wait_for_mempool=1)
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wait_for(lambda: spend_confirmed_noticed(lianad, coin_b["outpoint"]))
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coin_a = get_coin(lianad, txids[0])
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coin_b = get_coin(lianad, txids[1])
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# Reorg the chain down to the initial height without shifting nor malleating
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# any transaction. The coin info should be identical (except the transaction
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# spending the second coin will be mined at the height the reorg happened).
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bitcoind.simple_reorg(initial_height, shift=0)
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new_height = bitcoind.rpc.getblockcount()
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wait_for(lambda: lianad.rpc.getinfo()["block_height"] == new_height)
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new_coin_a = get_coin(lianad, coin_a["outpoint"])
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assert coin_a == new_coin_a
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new_coin_b = get_coin(lianad, coin_b["outpoint"])
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coin_b["spend_info"]["height"] = initial_height
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assert new_coin_b == coin_b
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def test_rescan_edge_cases(lianad, bitcoind):
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"""Test some specific cases that could arise when rescanning the chain."""
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initial_tip = bitcoind.rpc.getblockheader(bitcoind.rpc.getbestblockhash())
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# Some helpers
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list_coins = lambda: lianad.rpc.listcoins()["coins"]
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sorted_coins = lambda: sorted(list_coins(), key=lambda c: c["outpoint"])
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wait_synced = lambda: wait_for(
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lambda: lianad.rpc.getinfo()["block_height"] == bitcoind.rpc.getblockcount()
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)
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def reorg_shift(height, txs):
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"""Remine the chain from given height, shifting the txs by one block."""
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delta = bitcoind.rpc.getblockcount() - height + 1
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assert delta > 2
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h = bitcoind.rpc.getblockhash(initial_tip["height"])
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bitcoind.rpc.invalidateblock(h)
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bitcoind.generate_block(1)
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for tx in txs:
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bitcoind.rpc.sendrawtransaction(tx)
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bitcoind.generate_block(delta - 1, wait_for_mempool=len(txs))
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# Create 3 coins and spend 2 of them. Keep the transactions in memory to
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# rebroadcast them on reorgs.
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txs = []
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for _ in range(3):
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addr = lianad.rpc.getnewaddress()["address"]
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amount = 0.356
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txid = bitcoind.rpc.sendtoaddress(addr, amount)
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txs.append(bitcoind.rpc.gettransaction(txid)["hex"])
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wait_for(lambda: len(list_coins()) == 3)
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txs.append(spend_coins(lianad, bitcoind, list_coins()[:2]))
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bitcoind.generate_block(1, wait_for_mempool=4)
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wait_synced()
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# Advance the blocktime by >2h in the future for the importdescriptors rescan
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added_time = 60 * 60 * 3
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bitcoind.rpc.setmocktime(initial_tip["time"] + added_time)
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bitcoind.generate_block(12)
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# Lose our state
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coins_before = sorted_coins()
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outpoints_before = set(c["outpoint"] for c in coins_before)
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bitcoind.generate_block(1)
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lianad.restart_fresh(bitcoind)
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assert len(list_coins()) == 0
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# We can be stopped while we are rescanning
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lianad.rpc.startrescan(initial_tip["time"])
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lianad.stop()
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lianad.start()
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wait_for(lambda: lianad.rpc.getinfo()["rescan_progress"] is None)
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assert coins_before == sorted_coins()
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# Lose our state again
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bitcoind.generate_block(1)
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lianad.restart_fresh(bitcoind)
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wait_for(lambda: lianad.rpc.getinfo()["rescan_progress"] is None)
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assert len(list_coins()) == 0
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# There can be a reorg when we start rescanning
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reorg_shift(initial_tip["height"], txs)
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lianad.rpc.startrescan(initial_tip["time"])
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wait_synced()
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wait_for(lambda: lianad.rpc.getinfo()["rescan_progress"] is None)
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assert len(sorted_coins()) == len(coins_before)
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assert all(c["outpoint"] in outpoints_before for c in list_coins())
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# Advance the blocktime again
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bitcoind.rpc.setmocktime(initial_tip["time"] + added_time * 2)
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bitcoind.generate_block(12)
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# Lose our state again
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bitcoind.generate_block(1)
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lianad.restart_fresh(bitcoind)
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wait_synced()
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wait_for(lambda: lianad.rpc.getinfo()["rescan_progress"] is None)
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assert len(list_coins()) == 0
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# We can be rescanning when a reorg happens
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lianad.rpc.startrescan(initial_tip["time"])
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reorg_shift(initial_tip["height"] + 1, txs)
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wait_synced()
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wait_for(lambda: lianad.rpc.getinfo()["rescan_progress"] is None)
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assert len(sorted_coins()) == len(coins_before)
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assert all(c["outpoint"] in outpoints_before for c in list_coins())
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