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pytest: tighten the query_channel_range test.

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Make the two channels adjacent, and specify exactly the number of
divide-and-conquer steps there are.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2019-01-15 15:53:35 +10:30 committed by neil saitug
parent 4c57bf002e
commit 52750f2dcc
1 changed files with 28 additions and 8 deletions
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36
tests/test_gossip.py
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@ -562,17 +562,34 @@ def test_gossip_query_channel_range(node_factory, bitcoind):
l1, l2, l3, l4 = node_factory.line_graph(4, opts={'log-level': 'io'},
fundchannel=False)
# Make public channels.
scid12 = l1.fund_channel(l2, 10**5)
block12 = int(scid12.split('x')[0])
scid23 = l2.fund_channel(l3, 10**5)
block23 = int(scid23.split('x')[0])
# Make public channels on consecutive blocks
l1.fundwallet(10**6)
l2.fundwallet(10**6)
num_tx = len(bitcoind.rpc.getrawmempool())
l1.rpc.fundchannel(l2.info['id'], 10**5)['tx']
wait_for(lambda: len(bitcoind.rpc.getrawmempool()) == num_tx + 1)
bitcoind.generate_block(1)
num_tx = len(bitcoind.rpc.getrawmempool())
l2.rpc.fundchannel(l3.info['id'], 10**5)['tx']
wait_for(lambda: len(bitcoind.rpc.getrawmempool()) == num_tx + 1)
bitcoind.generate_block(1)
# Get them both to gossip depth.
bitcoind.generate_block(5)
# Make sure l2 has received all the gossip.
l2.daemon.wait_for_logs(['Received node_announcement for node ' + l1.info['id'],
'Received node_announcement for node ' + l3.info['id']])
scid12 = only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'][0]['short_channel_id']
scid23 = only_one(l3.rpc.listpeers(l2.info['id'])['peers'])['channels'][0]['short_channel_id']
block12 = int(scid12.split('x')[0])
block23 = int(scid23.split('x')[0])
assert block23 == block12 + 1
# l1 asks for all channels, gets both.
ret = l1.rpc.dev_query_channel_range(id=l2.info['id'],
first=0,
@ -644,6 +661,9 @@ def test_gossip_query_channel_range(node_factory, bitcoind):
assert ret['final_complete']
assert len(ret['short_channel_ids']) == 0
# Turn on IO logging in l1 channeld.
subprocess.run(['kill', '-USR1', l1.subd_pid('channeld')])
# Make l2 split reply into two (technically async)
l2.rpc.dev_set_max_scids_encode_size(max=9)
l2.daemon.wait_for_log('Set max_scids_encode_bytes to 9')
@ -651,6 +671,9 @@ def test_gossip_query_channel_range(node_factory, bitcoind):
first=0,
num=1000000)
# Turns out it sends huge number of empty replies here.
l1.daemon.wait_for_logs([r'\[IN\] 0108'] * 21)
# It should definitely have split
assert ret['final_first_block'] != 0 or ret['final_num_blocks'] != 1000000
assert ret['final_complete']
@ -664,9 +687,6 @@ def test_gossip_query_channel_range(node_factory, bitcoind):
bitcoind.generate_block(5)
l2.daemon.wait_for_log('Received node_announcement for node ' + l4.info['id'])
# Turn on IO logging in l1 channeld.
subprocess.run(['kill', '-USR1', l1.subd_pid('channeld')])
# Restore infinite encode size.
l2.rpc.dev_set_max_scids_encode_size(max=(2**32 - 1))
l2.daemon.wait_for_log('Set max_scids_encode_bytes to {}'