diff options
Diffstat (limited to 'test/functional/rpc_getblockfrompeer.py')
-rwxr-xr-x | test/functional/rpc_getblockfrompeer.py | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/functional/rpc_getblockfrompeer.py b/test/functional/rpc_getblockfrompeer.py new file mode 100755 index 0000000000..b65322d920 --- /dev/null +++ b/test/functional/rpc_getblockfrompeer.py @@ -0,0 +1,70 @@ +#!/usr/bin/env python3 +# Copyright (c) 2020-2021 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 the getblockfrompeer RPC.""" + +from test_framework.authproxy import JSONRPCException +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import ( + assert_equal, + assert_raises_rpc_error, +) + +class GetBlockFromPeerTest(BitcoinTestFramework): + def set_test_params(self): + self.num_nodes = 2 + + def setup_network(self): + self.setup_nodes() + + def check_for_block(self, hash): + try: + self.nodes[0].getblock(hash) + return True + except JSONRPCException: + return False + + def run_test(self): + self.log.info("Mine 4 blocks on Node 0") + self.generate(self.nodes[0], 4, sync_fun=self.no_op) + assert_equal(self.nodes[0].getblockcount(), 204) + + self.log.info("Mine competing 3 blocks on Node 1") + self.generate(self.nodes[1], 3, sync_fun=self.no_op) + assert_equal(self.nodes[1].getblockcount(), 203) + short_tip = self.nodes[1].getbestblockhash() + + self.log.info("Connect nodes to sync headers") + self.connect_nodes(0, 1) + self.sync_blocks() + + self.log.info("Node 0 should only have the header for node 1's block 3") + x = next(filter(lambda x: x['hash'] == short_tip, self.nodes[0].getchaintips())) + assert_equal(x['status'], "headers-only") + assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, short_tip) + + self.log.info("Fetch block from node 1") + peers = self.nodes[0].getpeerinfo() + assert_equal(len(peers), 1) + peer_0_peer_1_id = peers[0]["id"] + + self.log.info("Arguments must be sensible") + assert_raises_rpc_error(-8, "hash must be of length 64 (not 4, for '1234')", self.nodes[0].getblockfrompeer, "1234", 0) + + self.log.info("We must already have the header") + assert_raises_rpc_error(-1, "Block header missing", self.nodes[0].getblockfrompeer, "00" * 32, 0) + + self.log.info("Non-existent peer generates error") + assert_raises_rpc_error(-1, "Peer does not exist", self.nodes[0].getblockfrompeer, short_tip, peer_0_peer_1_id + 1) + + self.log.info("Successful fetch") + result = self.nodes[0].getblockfrompeer(short_tip, peer_0_peer_1_id) + self.wait_until(lambda: self.check_for_block(short_tip), timeout=1) + assert_equal(result, {}) + + self.log.info("Don't fetch blocks we already have") + assert_raises_rpc_error(-1, "Block already downloaded", self.nodes[0].getblockfrompeer, short_tip, peer_0_peer_1_id) + +if __name__ == '__main__': + GetBlockFromPeerTest().main() |