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funder: test for adding utxos, calculating total available

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Make sure that 100% available actually puts in 100% of what we can add
(note that this isn't 'all' -- we don't include uneconomic utxos)
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niftynei 2021-05-04 18:53:24 -05:00 committed by Rusty Russell
parent f6186d5860
commit c93bd5bd51
1 changed files with 62 additions and 0 deletions
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62
tests/test_opening.py
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@ -749,3 +749,65 @@ def test_funder_options(node_factory, bitcoind):
chan_info = only_one(only_one(l3.rpc.listpeers(l1.info['id'])['peers'])['channels'])
# l1 contributed everything
assert chan_info['funding_msat'][l1.info['id']] != '0msat'
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
def test_funder_contribution_limits(node_factory, bitcoind):
opts = {'experimental-dual-fund': None,
'feerates': (5000, 5000, 5000, 5000)}
l1, l2, l3 = node_factory.get_nodes(3, opts=opts)
l1.fundwallet(10**8)
# Give l2 lots of utxos
l2.fundwallet(10**3) # this one is too small to add
l2.fundwallet(10**5)
l2.fundwallet(10**4)
l2.fundwallet(10**4)
l2.fundwallet(10**4)
l2.fundwallet(10**4)
l2.fundwallet(10**4)
# Give l3 lots of utxos
l3.fundwallet(10**3) # this one is too small to add
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
l3.fundwallet(10**4)
# Contribute 100% of available funds to l2, all 6 utxos (smallest utxo
# 10**3 is left out)
l2.rpc.call('funderupdate',
{'policy': 'available',
'policy_mod': 100,
'min_their_funding': '1000msat',
'per_channel_min': '1000000msat',
'fund_probability': 100,
'fuzz_percent': 0})
# Set our contribution to 50k sat, should only use 7 of 12 available utxos
l3.rpc.call('funderupdate',
{'policy': 'fixed',
'policy_mod': '50000sat',
'min_their_funding': '1000msat',
'per_channel_min': '1000sat',
'per_channel_max': '500000sat',
'fund_probability': 100,
'fuzz_percent': 0})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
l1.fundchannel(l2, 10**7)
assert l2.daemon.is_in_log('Policy .* returned funding amount of 139020sat')
assert l2.daemon.is_in_log(r'calling `signpsbt` .* 6 inputs')
l1.rpc.connect(l3.info['id'], 'localhost', l3.port)
l1.fundchannel(l3, 10**7)
assert l3.daemon.is_in_log('Policy .* returned funding amount of 50000sat')
assert l3.daemon.is_in_log(r'calling `signpsbt` .* 7 inputs')