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pytest: test for mutual close fail under very low feerates.

Browse source 
```
$ l1-cli close 445x1x1 
# Sending closing fee offer 183sat, with range 0sat-183sat
# Received closing fee offer 183sat, with range 0sat-1000000sat
{
   "tx": "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",
   "txid": "216ed9adf8df623770e219f52b31350de60cd1b236d6f043664d9eb5bc462ad4",
   "type": "mutual"
}
rusty@rusty-Framework:~/devel/cvs/lightning (master)$ bt-cli getrawmempool
[
]
```

Logs show:

```
2023-08-11T02:20:13.947Z DEBUG   plugin-bcli: sendrawtx exit 26 (bitcoin-cli -regtest -datadir=/home/rusty/.bitcoin sendrawtransaction 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) error code: -26\nerror message:\nmin relay fee not met, 183 < 192

Indeed, tx weight is 192!
```

Reported-by: @ShahanaFarooqui
This commit is contained in:
Rusty Russell 2023-08-12 09:44:08 +09:30
parent 32b224f6db
commit a9c05d7d16
2 changed files with 16 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
contrib/pyln-testing/pyln/testing/utils.py
View file

@ -1542,7 +1542,8 @@ class NodeFactory(object):
)
# Regtest estimatefee are unusable, so override.
node.set_feerates(feerates, False)
if feerates is not None:
node.set_feerates(feerates, False)
self.nodes.append(node)
self.reserved_ports.append(port)

14
tests/test_closing.py
View file

@ -3902,3 +3902,17 @@ def test_closing_tx_valid(node_factory, bitcoind):
wait_for(lambda: len(bitcoind.rpc.getrawmempool()) == 1)
assert only_one(bitcoind.rpc.getrawmempool()) == close['txid']
assert bitcoind.rpc.getrawtransaction(close['txid']) == close['tx']
@pytest.mark.xfail(strict=True)
@pytest.mark.developer("needs dev-no-reconnect")
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd does not provide feerates on regtest')
def test_closing_minfee(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2, opts={'feerates': None})
l1.rpc.pay(l2.rpc.invoice(10000000, 'test', 'test')['bolt11'])
wait_for(lambda: only_one(l1.rpc.listpeerchannels()['channels'])['htlcs'] == [])
txid = l1.rpc.close(l2.info['id'])['txid']
bitcoind.generate_block(1, wait_for_mempool=txid)