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pytest: test for wumbo direct payments.

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We should be able to make larger payments if we're directly connected.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2022-11-29 13:37:42 +10:30
committed by Christian Decker
parent 15d0a8bec8
commit b6555dccaf
1 changed files with 22 additions and 1 deletions
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23
tests/test_connection.py
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@@ -3407,6 +3407,7 @@ def test_pay_disconnect_stress(node_factory, executor):
@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')
@pytest.mark.xfail(strict=True)
def test_wumbo_channels(node_factory, bitcoind):
l1, l2, l3 = node_factory.get_nodes(3,
opts=[{'large-channels': None},
@@ -3465,9 +3466,29 @@ def test_wumbo_channels(node_factory, bitcoind):
wait_for(lambda: 'CHANNELD_NORMAL' in [c['state'] for c in only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels']])
# Exact amount depends on fees, but it will be wumbo!
amount = [c['funding']['local_funds_msat'] for c in only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'] if c['state'] == 'CHANNELD_NORMAL'][0]
chan = only_one([c for c in only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'] if c['state'] == 'CHANNELD_NORMAL'])
amount = chan['funding']['local_funds_msat']
assert amount > Millisatoshi(str((1 << 24) - 1) + "sat")
# We should know we can spend that much!
spendable = chan['spendable_msat']
assert spendable > Millisatoshi(str((1 << 24) - 1) + "sat")
# So should peer.
chan = only_one([c for c in only_one(l2.rpc.listpeers(l1.info['id'])['peers'])['channels'] if c['state'] == 'CHANNELD_NORMAL'])
assert chan['receivable_msat'] == spendable
# And we can wumbo pay, right?
inv = l2.rpc.invoice(str(1 << 24) + "sat", "test_wumbo_channels", "wumbo payment")
# We actually do warn about capacity: l2 sees that *l1* doesn't have
# enough incoming to pay (not knowing that l1 is the intended payer).
assert 'warning_capacity' in inv
assert 'warning_mpp' not in inv
l1.rpc.pay(inv['bolt11'])
# Done in a single shot!
assert len(l1.rpc.listsendpays()['payments']) == 1
@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')