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coin_mvt: record fees for an outbound htlc

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If we initialized the payment, the fees are the entire fee-chain
(final hop amount - starting hop amount)

If it's a payment we routed, the fees are the diff between the
inbound htlc and the outbound (net gain by this routing)

Added to database so data persists nicely.
This commit is contained in:
niftynei
2021-12-07 14:09:28 -06:00
committed by Rusty Russell
parent 29c6718297
commit bddd3694fa
9 changed files with 66 additions and 21 deletions
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14
tests/test_plugin.py
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@@ -1902,10 +1902,18 @@ def test_coin_movement_notices(node_factory, bitcoind, chainparams):
{'type': 'chain_mvt', 'credit': 0, 'debit': 950000501, 'tags': ['channel_close']},
]
l3_l2_mvts = [
{'type': 'chain_mvt', 'credit': 0, 'debit': 0, 'tags': ['channel_open']},
{'type': 'channel_mvt', 'credit': 100000000, 'debit': 0, 'tags': ['invoice'], 'fees': '0msat'},
{'type': 'channel_mvt', 'credit': 0, 'debit': 50000501, 'tags': ['invoice'], 'fees': '501msat'},
{'type': 'chain_mvt', 'credit': 0, 'debit': 49999499, 'tags': ['channel_close']},
]
coin_plugin = os.path.join(os.getcwd(), 'tests/plugins/coin_movements.py')
l1, l2, l3 = node_factory.line_graph(3, opts=[
{'may_reconnect': True},
{'may_reconnect': True, 'plugin': os.path.join(os.getcwd(), 'tests/plugins/coin_movements.py')},
{'may_reconnect': True},
{'may_reconnect': True, 'plugin': coin_plugin},
{'may_reconnect': True, 'plugin': coin_plugin},
], wait_for_announce=True)
bitcoind.generate_block(5)
@@ -1977,12 +1985,14 @@ def test_coin_movement_notices(node_factory, bitcoind, chainparams):
bitcoind.generate_block(6)
sync_blockheight(bitcoind, [l2])
l2.daemon.wait_for_log('{}.*FUNDING_TRANSACTION/FUNDING_OUTPUT->MUTUAL_CLOSE depth'.format(l3.info['id']))
l3.daemon.wait_for_log('Resolved FUNDING_TRANSACTION/FUNDING_OUTPUT by MUTUAL_CLOSE')
# Ending channel balance should be zero
assert account_balance(l2, chanid_1) == 0
assert account_balance(l2, chanid_3) == 0
# Verify we recorded all the movements we expect
check_coin_moves(l3, chanid_3, l3_l2_mvts, chainparams)
check_coin_moves(l2, chanid_1, l1_l2_mvts, chainparams)
check_coin_moves(l2, chanid_3, l2_l3_mvts, chainparams)