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pytest: test to demonstrate that reservations of "private" channels overlap.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell
2025-11-17 10:57:18 +10:30
parent 6e4bc1dd6c
commit da4edd2811
1 changed files with 71 additions and 0 deletions
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71
tests/test_askrene.py
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@@ -1845,3 +1845,74 @@ def test_askrene_timeout(node_factory, bitcoind):
layers=['auto.localchans'],
maxfee_msat=1,
final_cltv=5)
@pytest.mark.xfail(strict=True)
def test_askrene_reserve_clash(node_factory, bitcoind):
"""Reserves get (erroneously) counted globally by scid, even for fake scids."""
l1 = node_factory.get_node()
node1 = "020000000000000000000000000000000000000000000000000000000000000001"
node2 = "020000000000000000000000000000000000000000000000000000000000000002"
l1.rpc.askrene_create_layer('layer1')
l1.rpc.askrene_create_layer('layer2')
l1.rpc.askrene_create_channel(layer="layer1",
source=l1.info['id'],
destination=node1,
short_channel_id="0x0x0",
capacity_msat=1000000)
l1.rpc.askrene_update_channel(layer='layer1',
short_channel_id_dir='0x0x0/1',
enabled=True,
htlc_minimum_msat=0,
htlc_maximum_msat=1000000,
fee_base_msat=1,
fee_proportional_millionths=2,
cltv_expiry_delta=18)
l1.rpc.askrene_create_channel(layer="layer2",
source=l1.info['id'],
destination=node2,
short_channel_id="0x0x0",
capacity_msat=1000000)
l1.rpc.askrene_update_channel(layer='layer2',
short_channel_id_dir='0x0x0/1',
enabled=True,
htlc_minimum_msat=0,
htlc_maximum_msat=1000000,
fee_base_msat=1,
fee_proportional_millionths=2,
cltv_expiry_delta=18)
l1.rpc.getroutes(source=l1.info['id'],
destination=node1,
amount_msat=500000,
layers=['layer1'],
maxfee_msat=1000,
final_cltv=5)
l1.rpc.getroutes(source=l1.info['id'],
destination=node2,
amount_msat=500000,
layers=['layer2'],
maxfee_msat=1000,
final_cltv=5)
l1.rpc.askrene_reserve(path=[{'short_channel_id_dir': '0x0x0/1',
'amount_msat': 950000,
# 'layer': 'layer1'
}])
# We can't use this on layer 1 anymore, only 50000 msat left.
with pytest.raises(RpcError, match=r"We could not find a usable set of paths. The shortest path is 0x0x0, but 0x0x0/1 already reserved 950000msat by command"):
l1.rpc.getroutes(source=l1.info['id'],
destination=node1,
amount_msat=500000,
layers=['layer1'],
maxfee_msat=1000,
final_cltv=5)
# But layer2 should be unaffected
l1.rpc.getroutes(source=l1.info['id'],
destination=node2,
amount_msat=500000,
layers=['layer2'],
maxfee_msat=1000,
final_cltv=5)