[qa] test that invalid blocks on an invalid chain get a disconnect
This commit is contained in:
Matt Corallo
parent
015a5258ad
commit
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1 changed files with 80 additions and 4 deletions
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@ -42,16 +42,20 @@ Node1 is unused in tests 3-7:
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7. Send Node0 the missing block again.
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Node0 should process and the tip should advance.
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8. Test Node1 is able to sync when connected to node0 (which should have sufficient
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work on its chain).
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8. Create a fork which is invalid at a height longer than the current chain
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(ie to which the node will try to reorg) but which has headers built on top
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of the invalid block. Check that we get disconnected if we send more headers
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on the chain the node now knows to be invalid.
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9. Test Node1 is able to sync when connected to node0 (which should have sufficient
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work on its chain).
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"""
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from test_framework.mininode import *
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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import time
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from test_framework.blocktools import create_block, create_coinbase
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from test_framework.blocktools import create_block, create_coinbase, create_transaction
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class AcceptBlockTest(BitcoinTestFramework):
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def add_options(self, parser):
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@ -240,9 +244,81 @@ class AcceptBlockTest(BitcoinTestFramework):
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test_node.sync_with_ping()
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assert_equal(self.nodes[0].getblockcount(), 290)
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self.nodes[0].getblock(all_blocks[286].hash)
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assert_equal(self.nodes[0].getbestblockhash(), all_blocks[286].hash)
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assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, all_blocks[287].hash)
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self.log.info("Successfully reorged to longer chain from non-whitelisted peer")
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# 8. Connect node1 to node0 and ensure it is able to sync
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# 8. Create a chain which is invalid at a height longer than the
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# current chain, but which has more blocks on top of that
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block_289f = create_block(all_blocks[284].sha256, create_coinbase(289), all_blocks[284].nTime+1)
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block_289f.solve()
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block_290f = create_block(block_289f.sha256, create_coinbase(290), block_289f.nTime+1)
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block_290f.solve()
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block_291 = create_block(block_290f.sha256, create_coinbase(291), block_290f.nTime+1)
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# block_291 spends a coinbase below maturity!
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block_291.vtx.append(create_transaction(block_290f.vtx[0], 0, b"42", 1))
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block_291.hashMerkleRoot = block_291.calc_merkle_root()
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block_291.solve()
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block_292 = create_block(block_291.sha256, create_coinbase(292), block_291.nTime+1)
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block_292.solve()
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# Now send all the headers on the chain and enough blocks to trigger reorg
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headers_message = msg_headers()
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headers_message.headers.append(CBlockHeader(block_289f))
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headers_message.headers.append(CBlockHeader(block_290f))
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headers_message.headers.append(CBlockHeader(block_291))
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headers_message.headers.append(CBlockHeader(block_292))
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test_node.send_message(headers_message)
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test_node.sync_with_ping()
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tip_entry_found = False
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for x in self.nodes[0].getchaintips():
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if x['hash'] == block_292.hash:
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assert_equal(x['status'], "headers-only")
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tip_entry_found = True
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assert(tip_entry_found)
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assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, block_292.hash)
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test_node.send_message(msg_block(block_289f))
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test_node.send_message(msg_block(block_290f))
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test_node.sync_with_ping()
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self.nodes[0].getblock(block_289f.hash)
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self.nodes[0].getblock(block_290f.hash)
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test_node.send_message(msg_block(block_291))
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# At this point we've sent an obviously-bogus block, wait for full processing
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# without assuming whether we will be disconnected or not
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try:
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# Only wait a short while so the test doesn't take forever if we do get
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# disconnected
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test_node.sync_with_ping(timeout=1)
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except AssertionError:
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test_node.wait_for_disconnect()
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test_node = NodeConnCB() # connects to node (not whitelisted)
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connections[0] = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node)
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test_node.add_connection(connections[0])
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NetworkThread().start() # Start up network handling in another thread
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test_node.wait_for_verack()
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# We should have failed reorg and switched back to 290 (but have block 291)
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assert_equal(self.nodes[0].getblockcount(), 290)
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assert_equal(self.nodes[0].getbestblockhash(), all_blocks[286].hash)
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assert_equal(self.nodes[0].getblock(block_291.hash)["confirmations"], -1)
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# Now send a new header on the invalid chain, indicating we're forked off, and expect to get disconnected
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block_293 = create_block(block_292.sha256, create_coinbase(293), block_292.nTime+1)
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block_293.solve()
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headers_message = msg_headers()
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headers_message.headers.append(CBlockHeader(block_293))
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test_node.send_message(headers_message)
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test_node.wait_for_disconnect()
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# 9. Connect node1 to node0 and ensure it is able to sync
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connect_nodes(self.nodes[0], 1)
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sync_blocks([self.nodes[0], self.nodes[1]])
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self.log.info("Successfully synced nodes 1 and 0")
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