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114 lines
4.7 KiB
Python
114 lines
4.7 KiB
Python
from fixtures import * # noqa: F401,F403
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from utils import wait_for, sync_blockheight
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def test_db_dangling_peer_fix(node_factory):
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# This was taken from test_fail_unconfirmed() node.
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l1 = node_factory.get_node(dbfile='dangling-peer.sqlite3.xz')
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l2 = node_factory.get_node()
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# Must match entry in db
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assert l2.info['id'] == '022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59'
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# This time it should work! (Connect *in* since l1 thinks it has UTXOs
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# it doesn't have).
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l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
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# Make sure l2 has register connection
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l2.daemon.wait_for_log('Handed peer, entering loop')
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l2.fund_channel(l1, 200000, wait_for_active=True)
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def test_block_backfill(node_factory, bitcoind):
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"""Test whether we backfill data from the blockchain correctly.
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For normal operation we will process any block after the initial start
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height, or rescan height, but for gossip we actually also need to backfill
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the blocks we skipped initially. We do so on-demand, whenever we see a
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channel_announcement referencing a blockheight we haven't processed yet,
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we fetch the entire block, extract P2WSH outputs and ask `bitcoin
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gettxout` for each of them. We then store the block header in the `blocks`
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table and the unspent outputs in the `utxoset` table.
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The test consist of two nodes opening a channel at height X, and an
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unrelated P2WSH transaction being sent at the same height (will be used to
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check for completeness of the backfill). Then a second node starts at
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height X+100 and connect to one of the nodes. It should not have the block
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in its DB before connecting. After connecting it should sync the gossip,
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triggering a backfill of block X, and all associated P2WSH outputs.
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"""
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# Need to manually open the channels later since otherwise we can't have a
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# tx in the same block (`line_graph` with `fundchannel=True` generates
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# blocks).
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l1, l2 = node_factory.line_graph(2, fundchannel=False)
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# Get some funds to l1
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addr = l1.rpc.newaddr()['bech32']
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bitcoind.rpc.sendtoaddress(addr, 1)
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bitcoind.generate_block(1)
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wait_for(lambda: len(l1.rpc.listfunds()['outputs']) == 1)
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# Now send the needle we will go looking for later:
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bitcoind.rpc.sendtoaddress('bcrt1qtwxd8wg5eanumk86vfeujvp48hfkgannf77evggzct048wggsrxsum2pmm', 0.00031337)
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l1.rpc.fundchannel(l2.info['id'], 10**6, announce=True)
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wait_for(lambda: len(bitcoind.rpc.getrawmempool()) == 2)
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# Confirm and get some distance between the funding and the l3 wallet birth date
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bitcoind.generate_block(100)
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wait_for(lambda: len(l1.rpc.listnodes()['nodes']) == 2)
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# Start the tester node, and connect it to l1. l0 should sync the gossip
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# and call out to `bitcoind` to backfill the block.
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l3 = node_factory.get_node()
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heights = [r['height'] for r in l3.db_query("SELECT height FROM blocks")]
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assert(103 not in heights)
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l3.rpc.connect(l1.info['id'], 'localhost', l1.port)
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# Make sure we have backfilled the block
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wait_for(lambda: len(l3.rpc.listnodes()['nodes']) == 2)
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heights = [r['height'] for r in l3.db_query("SELECT height FROM blocks")]
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assert(103 in heights)
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# Make sure we also have the needle we added to the haystack above
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assert(31337 in [r['satoshis'] for r in l3.db_query("SELECT satoshis FROM utxoset")])
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# Now close the channel and make sure `l3` cleans up correctly:
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txid = l1.rpc.close(l2.info['id'])['txid']
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bitcoind.generate_block(1, wait_for_mempool=txid)
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wait_for(lambda: len(l3.rpc.listchannels()['channels']) == 0)
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# Test that the max-channel-id is set correctly between
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# restarts (with forgotten channel)
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def test_max_channel_id(node_factory, bitcoind):
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# Create a channel between two peers.
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# Close the channel and have 100 blocks happen (forget channel)
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# Restart node, create channel again. Should succeed.
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l1, l2 = node_factory.line_graph(2, fundchannel=True, wait_for_announce=True)
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sync_blockheight(bitcoind, [l1, l2])
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# Now shutdown cleanly.
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l1.rpc.close(l2.info['id'], 0)
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l1.daemon.wait_for_log(' to CLOSINGD_COMPLETE')
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l2.daemon.wait_for_log(' to CLOSINGD_COMPLETE')
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# And should put closing into mempool.
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l1.wait_for_channel_onchain(l2.info['id'])
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l2.wait_for_channel_onchain(l1.info['id'])
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bitcoind.generate_block(101)
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wait_for(lambda: l1.rpc.listpeers()['peers'] == [])
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wait_for(lambda: l2.rpc.listpeers()['peers'] == [])
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# Stop l2, and restart
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l2.stop()
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l2.start()
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# Reconnect
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l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
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# Fundchannel again, should succeed.
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l1.rpc.fundchannel(l2.info['id'], 10**5)
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