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pytest: simple getroutes tests.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell 2024-08-07 11:19:55 +09:30
parent 45814bf8ac
commit de19524b6d
1 changed files with 39 additions and 0 deletions
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39
tests/test_askrene.py
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@ -250,3 +250,42 @@ def test_getroutes(node_factory):
'next_node_id': nodemap[2],
'amount_msat': 9500009,
'delay': 99 + 6}]])
def test_getroutes_fee_fallback(node_factory):
"""Test getroutes call takes into account fees, if excessive"""
l1 = node_factory.get_node(start=False)
# 0 -> 1 -> 3: high capacity, high fee (1%)
# 0 -> 2 -> 3: low capacity, low fee.
gsfile, nodemap = generate_gossip_store([GenChannel(0, 1,
capacity_sats=20000,
forward=GenChannel.Half(propfee=10000)),
GenChannel(0, 2,
capacity_sats=10000),
GenChannel(1, 3,
capacity_sats=20000,
forward=GenChannel.Half(propfee=10000)),
GenChannel(2, 3,
capacity_sats=10000)])
# Set up l1 with this as the gossip_store
shutil.copy(gsfile.name, os.path.join(l1.daemon.lightning_dir, TEST_NETWORK, 'gossip_store'))
l1.start()
# Don't hit maxfee? Go easy path.
check_getroute_paths(l1,
nodemap[0],
nodemap[3],
10000,
maxfee_msat=201,
paths=[[{'short_channel_id': '0x1x0'},
{'short_channel_id': '1x3x2'}]])
# maxfee exceeded? lower prob path.
check_getroute_paths(l1,
nodemap[0],
nodemap[3],
10000,
maxfee_msat=200,
paths=[[{'short_channel_id': '0x2x1'},
{'short_channel_id': '2x3x3'}]])