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pytest: protect against bad gossip messages from mining confirms too fast.

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If we fund a channel between two nodes, then mine all the blocks to
announce it, any other nodes may see the announcement before the
blocks, causing CI to complain about "bad gossip":

```
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Ignoring future channel_announcment for 113x1x1 (current block 112)
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 113x1x1/0
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 113x1x1/1
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_NODE_ANNOUNCEMENT before announcement 032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e
```

Add a new helper for this case, and use it where there are more than 2 nodes.

Cleans up test_routing_gossip and a few other places which did this manually.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2022-01-30 14:07:23 +10:30
parent 6d9f6ffd67
commit e8d2176e6b
9 changed files with 77 additions and 82 deletions
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2
tests/utils.py
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@@ -1,5 +1,5 @@
from pyln.testing.utils import TEST_NETWORK, TIMEOUT, VALGRIND, DEVELOPER, DEPRECATED_APIS # noqa: F401
from pyln.testing.utils import env, only_one, wait_for, write_config, TailableProc, sync_blockheight, wait_channel_quiescent, get_tx_p2wsh_outnum # noqa: F401
from pyln.testing.utils import env, only_one, wait_for, write_config, TailableProc, sync_blockheight, wait_channel_quiescent, get_tx_p2wsh_outnum, mine_funding_to_announce # noqa: F401
import bitstring
from pyln.client import Millisatoshi
from pyln.testing.utils import EXPERIMENTAL_DUAL_FUND