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[qa] Relax assumptions on mempool behavior during reorg 

Policy limits (such as chain limits and mempool total size) could reasonably
be enforced more aggressively during a reorg, so use resendwallettransactions
to repopulate the mempool to avoid mined blocks being too small, and increase
the chain limits from the default for this test.

This is in preparation for a change in mempool behavior during a reorg.
This commit is contained in:
Suhas Daftuar 2016-11-07 13:42:09 -05:00
parent 35da2aeed7
commit 9decd648ac
1 changed files with 12 additions and 3 deletions
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15
test/functional/pruning.py
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@ -34,10 +34,11 @@ class PruneTest(BitcoinTestFramework):
# Create nodes 0 and 1 to mine.
# Create node 2 to test pruning.
self.full_node_default_args = ["-maxreceivebuffer=20000","-blockmaxsize=999000", "-checkblocks=5", "-limitdescendantcount=100", "-limitdescendantsize=5000", "-limitancestorcount=100", "-limitancestorsize=5000" ]
# Create nodes 3 and 4 to test manual pruning (they will be re-started with manual pruning later)
# Create nodes 5 to test wallet in prune mode, but do not connect
self.extra_args = [["-maxreceivebuffer=20000", "-blockmaxsize=999000", "-checkblocks=5"],
["-maxreceivebuffer=20000", "-blockmaxsize=999000", "-checkblocks=5"],
self.extra_args = [self.full_node_default_args,
self.full_node_default_args,
["-maxreceivebuffer=20000", "-prune=550"],
["-maxreceivebuffer=20000", "-blockmaxsize=999000"],
["-maxreceivebuffer=20000", "-blockmaxsize=999000"],
@ -97,12 +98,15 @@ class PruneTest(BitcoinTestFramework):
# Node 2 stays connected, so it hears about the stale blocks and then reorg's when node0 reconnects
# Stopping node 0 also clears its mempool, so it doesn't have node1's transactions to accidentally mine
self.stop_node(0)
self.nodes[0]=start_node(0, self.options.tmpdir, ["-maxreceivebuffer=20000","-blockmaxsize=999000", "-checkblocks=5"], timewait=900)
self.nodes[0]=start_node(0, self.options.tmpdir, self.full_node_default_args, timewait=900)
# Mine 24 blocks in node 1
for i in range(24):
if j == 0:
mine_large_block(self.nodes[1], self.utxo_cache_1)
else:
# Add node1's wallet transactions back to the mempool, to
# avoid the mined blocks from being too small.
self.nodes[1].resendwallettransactions()
self.nodes[1].generate(1) #tx's already in mempool from previous disconnects
# Reorg back with 25 block chain from node 0
@ -159,6 +163,11 @@ class PruneTest(BitcoinTestFramework):
self.log.info("Usage possibly still high bc of stale blocks in block files: %d" % calc_usage(self.prunedir))
self.log.info("Mine 220 more blocks so we have requisite history (some blocks will be big and cause pruning of previous chain)")
# Get node0's wallet transactions back in its mempool, to avoid the
# mined blocks from being too small.
self.nodes[0].resendwallettransactions()
for i in range(22):
# This can be slow, so do this in multiple RPC calls to avoid
# RPC timeouts.