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#!/usr/bin/env python3
# Copyright (c) 2020 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test blockfilterindex in conjunction with prune."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_raises_rpc_error,
assert_greater_than,
)
class FeatureBlockfilterindexPruneTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
self.extra_args = [["-fastprune", "-prune=1"], ["-fastprune", "-prune=1", "-blockfilterindex=1"]]
def run_test(self):
# test basic pruning compatibility & filter access of pruned blocks
self.log.info("check if we can access a blockfilter when pruning is enabled but no blocks are actually pruned")
assert(len(self.nodes[1].getblockfilter(self.nodes[1].getbestblockhash())['filter']) > 0)
self.nodes[1].generate(500)
self.sync_all()
self.log.info("prune some blocks")
pruneheight = self.nodes[1].pruneblockchain(400)
assert(pruneheight != 0)
self.log.info("check if we can access the tips blockfilter when we have pruned some blocks")
assert(len(self.nodes[1].getblockfilter(self.nodes[1].getbestblockhash())['filter']) > 0)
self.log.info("check if we can access the blockfilter of a pruned block")
assert(len(self.nodes[1].getblockfilter(self.nodes[1].getblockhash(2))['filter']) > 0)
self.log.info("start node without blockfilterindex")
self.stop_node(1)
self.start_node(1, extra_args=self.extra_args[0])
self.log.info("make sure accessing the blockfilters throws an error")
assert_raises_rpc_error(-1,"Index is not enabled for filtertype basic", self.nodes[1].getblockfilter, self.nodes[1].getblockhash(2))
self.nodes[1].generate(1000)
self.log.info("prune below the blockfilterindexes best block while blockfilters are disabled")
pruneheight_new = self.nodes[1].pruneblockchain(1000)
assert_greater_than(pruneheight_new, pruneheight)
self.stop_node(1)
self.log.info("make sure we get an init error when starting the node again with block filters")
self.nodes[1].assert_start_raises_init_error(extra_args=self.extra_args[1])
self.nodes[1].assert_debug_log(["basic block filter index best block of the index goes beyond pruned data. Please disable the index or reindex (which will download the whole blockchain again)"])
self.log.info("make sure the node starts again with the -reindex arg")
reindex_args = self.extra_args[1]
reindex_args.append("-reindex")
self.start_node(1, extra_args=reindex_args)
if __name__ == '__main__':
FeatureBlockfilterindexPruneTest().main()
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