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pytest: add connection test for gratuitous transient failure message. 

[Cleaned up a little to avoid the case where both sides race to reconnect --RR ]
This commit is contained in:
Michael Schmoock 2023-04-03 14:18:38 +09:30 committed by Rusty Russell
parent 3c83aed9d1
commit 00431779a6
1 changed files with 31 additions and 0 deletions
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31
tests/test_connection.py
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@ -4377,3 +4377,34 @@ def test_peer_disconnected_reflected_in_channel_state(node_factory):
wait_for(lambda: only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['connected'] is False)
wait_for(lambda: only_one(l1.rpc.listpeerchannels(l2.info['id'])['channels'])['peer_connected'] is False)
@pytest.mark.xfail(strict=True)
@pytest.mark.developer("needs dev-no-reconnect")
def test_reconnect_no_additional_transient_failure(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2, opts=[{'may_reconnect': True},
{'may_reconnect': True,
'dev-no-reconnect': None}])
l1id = l1.info['id']
l2id = l2.info['id']
# We wait until conenction is established and channel is NORMAL
l2.daemon.wait_for_logs([f"{l1id}-connectd: Handed peer, entering loop",
f"{l1id}-chan#1: State changed from CHANNELD_AWAITING_LOCKIN to CHANNELD_NORMAL"])
# We now stop l1
l1.stop()
# We wait for l2 to disconnect, ofc we also see an expected "Peer transient failure" here.
l2.daemon.wait_for_logs([f"{l1id}-channeld-chan#1: Peer connection lost",
f"{l1id}-lightningd: peer_disconnect_done",
f"{l1id}-chan#1: Peer transient failure in CHANNELD_NORMAL: channeld: Owning subdaemon channeld died"])
# When we restart l1 we should not see another Peer transient failure message.
offset1 = l1.daemon.logsearch_start
l1.start()
# We wait until l2 is fine again with l1
l2.daemon.wait_for_log(f"{l1id}-connectd: Handed peer, entering loop")
time.sleep(5)
# We should not see a "Peer transient failure" after restart of l1
assert not l1.daemon.is_in_log(f"{l2id}-chan#1: Peer transient failure in CHANNELD_NORMAL: Disconnected", start=offset1)