A later scripted-diff commit replaces the majority of uses, which all
follow this pattern:
(dis)?connect_nodes(self.nodes[a], b)
This commit replaces the few "special cases".
- add () to function to actually disconnect from p2pconn
- extract max interval into a constant
- disconnect at the end of a subtest rather than start of next
- expose info about number of txns in unbroadcast set and whether a mempool entry's tx has passed initial broadcast
- makes rpcs more informative and allows for more explicit testing, eg tracking if tx is in unbroadcast set
before and after originating node connects to peers (adds this in mempool_unbroadcast.py)
- adds mempool method IsUnbroadcastTx to query for tx inclusion in mempool's unbroadcast set
Check that...
- mempool tracks & reattempts delivery of a transaction where a GETDATA hasn't
been requested by a peer yet.
- transaction delivery is not attempted again after GETDATA is received.
- transaction is removed from the unbroadcast set when its removed from the
mempool.
