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splice: Add test of “splice” script command

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Tests that splice-in and splice-out work through the scripting process and confirm the resulting balances are correct.
This commit is contained in:
Dusty Daemon 2024-11-11 13:20:38 +10:30 • committed by Rusty Russell
parent e4978a4037
commit 14b63d8927
2 changed files with 80 additions and 0 deletions
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11
contrib/pyln-client/pyln/client/lightning.py
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@ -1135,6 +1135,17 @@ class LightningRpc(UnixDomainSocketRpc):
}
return self.call("openchannel_abort", payload)
def splice(self, script_or_json, dryrun=None, force_feerate=None, debug_log=None, wetrun=None):
""" Execute a splice """
payload = {
"script_or_json": script_or_json,
"dryrun": dryrun,
"force_feerate": force_feerate,
"debug_log": debug_log,
"dev-wetrun": wetrun,
}
return self.call("dev-splice", payload)
def splice_init(self, chan_id, amount, initialpsbt=None, feerate_per_kw=None):
""" Initiate a splice """
payload = {

69
tests/test_splice.py Normal file
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@ -0,0 +1,69 @@
from fixtures import * # noqa: F401,F403
import pytest
import unittest
from utils import (
TEST_NETWORK, only_one, wait_for
)
@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
def test_script_splice_out(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2, fundamount=1000000, wait_for_announce=True, opts={'experimental-splicing': None})
# Splice out 100k from first channel, explicitly putting result less fees into onchain wallet
l1.rpc.splice("*:? -> 100000; 100%-fee -> wallet", force_feerate=True, debug_log=True)
p1 = only_one(l1.rpc.listpeerchannels(peer_id=l2.info['id'])['channels'])
p2 = only_one(l2.rpc.listpeerchannels(l1.info['id'])['channels'])
assert p1['inflight'][0]['splice_amount'] == -100000
assert p1['inflight'][0]['total_funding_msat'] == 900000000
assert p1['inflight'][0]['our_funding_msat'] == 1000000000
assert p2['inflight'][0]['splice_amount'] == 0
assert p2['inflight'][0]['total_funding_msat'] == 900000000
assert p2['inflight'][0]['our_funding_msat'] == 0
bitcoind.generate_block(6, wait_for_mempool=1)
l2.daemon.wait_for_log(r'lightningd, splice_locked clearing inflights')
p1 = only_one(l1.rpc.listpeerchannels(peer_id=l2.info['id'])['channels'])
p2 = only_one(l2.rpc.listpeerchannels(l1.info['id'])['channels'])
assert p1['to_us_msat'] == 900000000
assert p1['total_msat'] == 900000000
assert p2['to_us_msat'] == 0
assert p2['total_msat'] == 900000000
assert 'inflight' not in p1
assert 'inflight' not in p2
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) == 2)
wait_for(lambda: len(l1.rpc.listfunds()['channels']) == 1)
@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
def test_script_splice_in(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2, fundamount=1000000, wait_for_announce=True, opts={'experimental-splicing': None})
# Splice in 100k sats into first channel, explicitly taking out 200k sats from wallet
# and letting change go automatically back to wallet (100k less onchain fees)
l1.rpc.splice("wallet -> 200000; 100000 -> *:?", force_feerate=True, debug_log=True)
p1 = only_one(l1.rpc.listpeerchannels(peer_id=l2.info['id'])['channels'])
p2 = only_one(l2.rpc.listpeerchannels(l1.info['id'])['channels'])
assert p1['inflight'][0]['splice_amount'] == 100000
assert p1['inflight'][0]['total_funding_msat'] == 1100000000
assert p1['inflight'][0]['our_funding_msat'] == 1000000000
assert p2['inflight'][0]['splice_amount'] == 0
assert p2['inflight'][0]['total_funding_msat'] == 1100000000
assert p2['inflight'][0]['our_funding_msat'] == 0
bitcoind.generate_block(6, wait_for_mempool=1)
l2.daemon.wait_for_log(r'lightningd, splice_locked clearing inflights')
p1 = only_one(l1.rpc.listpeerchannels(peer_id=l2.info['id'])['channels'])
p2 = only_one(l2.rpc.listpeerchannels(l1.info['id'])['channels'])
assert p1['to_us_msat'] == 1100000000
assert p1['total_msat'] == 1100000000
assert p2['to_us_msat'] == 0
assert p2['total_msat'] == 1100000000
assert 'inflight' not in p1
assert 'inflight' not in p2
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) == 1)
wait_for(lambda: len(l1.rpc.listfunds()['channels']) == 1)