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tests/test_pay.py: Add test for conflict between presplit and routehints paymods.

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ZmnSCPxj jxPCSnmZ 2020-08-06 12:49:25 +08:00 committed by Christian Decker
parent 2e10729690
commit a9b992a94a
1 changed files with 29 additions and 0 deletions
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29
tests/test_pay.py
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@ -3221,3 +3221,32 @@ def test_bolt11_null_after_pay(node_factory, bitcoind):
pays = l2.rpc.listpays()["pays"]
assert(pays[0]["bolt11"] == invl1)
assert('amount_msat' in pays[0] and pays[0]['amount_msat'] == amt)
@pytest.mark.xfail(strict=True)
def test_mpp_presplit_routehint_conflict(node_factory, bitcoind):
'''
We have a bug where pre-splitting the payment prevents *any*
routehints from being taken.
We tickle that bug here by building l1->l2->l3, but with
l2->l3 as an unpublished channel.
If the payment is large enough to trigger pre-splitting, the
routehints are not applied in any of the splits.
'''
l1, l2, l3 = node_factory.get_nodes(3)
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
l1l2 = l1.fund_channel(l2, 10**7, announce_channel=True)
l2.rpc.connect(l3.info['id'], 'localhost', l3.port)
l2.fund_channel(l3, 10**7, announce_channel=False)
bitcoind.generate_block(6)
sync_blockheight(bitcoind, [l1, l2, l3])
# Wait for l3 to learn about l1->l2, otherwise it will think
# l2 is a deadend and not add it to the routehint.
wait_for(lambda: len(l3.rpc.listchannels(l1l2)['channels']) >= 2)
inv = l3.rpc.invoice(Millisatoshi(2 * 10000 * 1000), 'i', 'i', exposeprivatechannels=True)['bolt11']
l1.rpc.pay(inv)