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closing: add option to set closing range.

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This affects the range we offer even without quick-close, but it's
more critical for quick-close.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSONRPC: `close` now takes a `feerange` parameter to set min/max fee rates for mutual close.
This commit is contained in:
Rusty Russell
2021-09-08 14:11:46 +09:30
parent e12f9f0872
commit 6ee8c40b29
14 changed files with 136 additions and 14 deletions
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22
tests/test_closing.py
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@@ -3327,3 +3327,25 @@ def test_anysegwit_close_needs_feature(node_factory, bitcoind):
l1.rpc.close(l2.info['id'], destination='bcrt1pw508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7k0ylj56')
wait_for(lambda: only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['state'] == 'CLOSINGD_COMPLETE')
bitcoind.generate_block(1, wait_for_mempool=1)
def test_close_feerate_range(node_factory, bitcoind, chainparams):
"""Test the quick-close fee range negotiation"""
l1, l2 = node_factory.line_graph(2, opts={'experimental-quick-close': None})
# Lowball the range here.
l1.rpc.close(l2.info['id'], feerange=['253perkw', 'normal'])
if not chainparams['elements']:
l1_range = [138, 4110]
l2_range = [1027, 1000000]
else:
# That fee output is a little chunky.
l1_range = [175, 5212]
l2_range = [1303, 1000000]
l1.daemon.wait_for_log('Negotiating closing fee between {}sat and {}sat satoshi'.format(l1_range[0], l1_range[1]))
l2.daemon.wait_for_log('Negotiating closing fee between {}sat and {}sat satoshi'.format(l2_range[0], l2_range[1]))
overlap = [max(l1_range[0], l2_range[0]), min(l1_range[1], l2_range[1])]
l1.daemon.wait_for_log('performing quickclose in range {}sat-{}sat'.format(overlap[0], overlap[1]))