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test/functional/abc-finalize-block.py
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| File Mode | null | 100755 |
| #!/usr/bin/env python3 | |||||
| # Copyright (c) 2018 The Bitcoin developers | |||||
| # Distributed under the MIT software license, see the accompanying | |||||
| # file COPYING or http://www.opensource.org/licenses/mit-license.php. | |||||
| """Test the finalizeblock RPC calls.""" | |||||
| import os | |||||
| from test_framework.test_framework import BitcoinTestFramework | |||||
| from test_framework.util import assert_equal, assert_raises_rpc_error, connect_nodes_bi, sync_blocks, wait_until | |||||
| RPC_FINALIZE_INVALID_BLOCK_ERROR = 'finalize-invalid-block' | |||||
| class FinalizeBlockTest(BitcoinTestFramework): | |||||
| def set_test_params(self): | |||||
| self.num_nodes = 2 | |||||
| # There should only be one chaintip, which is expected_tip | |||||
| def only_valid_tip(self, expected_tip, other_tip_status=None): | |||||
| node = self.nodes[0] | |||||
| assert_equal(node.getbestblockhash(), expected_tip) | |||||
| for tip in node.getchaintips(): | |||||
| if tip["hash"] == expected_tip: | |||||
| assert_equal(tip["status"], "active") | |||||
| else: | |||||
| assert_equal(tip["status"], other_tip_status) | |||||
| def run_test(self): | |||||
| node = self.nodes[0] | |||||
| self.log.info("Test block finalization...") | |||||
| node.generate(10) | |||||
| tip = node.getbestblockhash() | |||||
| node.finalizeblock(tip) | |||||
| assert_equal(node.getbestblockhash(), tip) | |||||
| alt_node = self.nodes[1] | |||||
| connect_nodes_bi(self.nodes, 0, 1) | |||||
| sync_blocks(self.nodes[0:2]) | |||||
| alt_node.invalidateblock(tip) | |||||
| alt_node.generate(10) | |||||
| # Wait for node 0 to invalidate the chain. | |||||
| def wait_for_invalid_block(block): | |||||
| def check_block(): | |||||
| for tip in node.getchaintips(): | |||||
| if tip["hash"] == block: | |||||
| assert(tip["status"] != "active") | |||||
| return tip["status"] == "invalid" | |||||
| return False | |||||
| wait_until(check_block) | |||||
| wait_for_invalid_block(alt_node.getbestblockhash()) | |||||
| self.log.info("Test that an invalid block cannot be finalized...") | |||||
| assert_raises_rpc_error(-20, RPC_FINALIZE_INVALID_BLOCK_ERROR, | |||||
| node.finalizeblock, alt_node.getbestblockhash()) | |||||
| self.log.info( | |||||
| "Test that invalidating a finalized block moves the finalization backward...") | |||||
| node.invalidateblock(tip) | |||||
| node.reconsiderblock(tip) | |||||
| assert_equal(node.getbestblockhash(), tip) | |||||
| # The node will now accept that chain as the finalized block moved back. | |||||
| node.reconsiderblock(alt_node.getbestblockhash()) | |||||
| assert_equal(node.getbestblockhash(), alt_node.getbestblockhash()) | |||||
| self.log.info("Trigger reorg via block finalization...") | |||||
| node.finalizeblock(tip) | |||||
| assert_equal(node.getbestblockhash(), tip) | |||||
| self.log.info("Try to finalized a block on a competiting fork...") | |||||
| assert_raises_rpc_error(-20, RPC_FINALIZE_INVALID_BLOCK_ERROR, | |||||
| node.finalizeblock, alt_node.getbestblockhash()) | |||||
| if __name__ == '__main__': | |||||
| FinalizeBlockTest().main() | |||||