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pytest: test (fail) that we don't repeat gossip back to the node we got it from

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell 2019-09-06 14:15:05 +09:30 committed by Christian Decker
parent 1e7b1276a9
commit 5292f11818
1 changed files with 19 additions and 0 deletions
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19
tests/test_gossip.py
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@ -1375,3 +1375,22 @@ def test_gossip_announce_unknown_block(node_factory, bitcoind):
# Make sure it's OK once it's caught up. # Make sure it's OK once it's caught up.
sync_blockheight(bitcoind, [l1]) sync_blockheight(bitcoind, [l1])
@pytest.mark.xfail(strict=True)
@unittest.skipIf(not DEVELOPER, "gossip without DEVELOPER=1 is slow")
def test_gossip_no_backtalk(node_factory):
l1, l2 = node_factory.line_graph(2, wait_for_announce=True)
# This connects, gets gossip, but should *not* play it back.
l3 = node_factory.get_node(log_all_io=True)
l3.rpc.connect(l2.info['id'], 'localhost', l2.port)
# Will get channel_announce, then two channel_update and two node_announcement
l3.daemon.wait_for_logs([r'\[IN\] 0100',
r'\[IN\] 0102', r'\[IN\] 0102',
r'\[IN\] 0101', r'\[IN\] 0101'])
# With DEVELOPER, this is long enough for gossip flush.
time.sleep(2)
assert not l3.daemon.is_in_log(r'\[OUT\] 0100')