Rusty Russell e8d2176e6b pytest: protect against bad gossip messages from mining confirms too fast. ... 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>		2022-02-08 11:15:52 +10:30
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testing	pytest: protect against bad gossip messages from mining confirms too fast.	2022-02-08 11:15:52 +10:30