feature_signet.py

#!/usr/bin/env python3
# Copyright (c) 2019-2020 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 basic signet functionality"""

from decimal import Decimal

from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal

# Dogecoin: Had to replace the version on this as it was invalid under AuxPoW rules.
bad_signet_blksig_block = '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'

class SignetBasicTest(BitcoinTestFramework):
    def set_test_params(self):
        self.chain = "signet"
        self.num_nodes = 6
        self.setup_clean_chain = True
        shared_args1 = ["-signetchallenge=51"]  # OP_TRUE
        shared_args2 = ["-signetchallenge=50"]  # Dogecoin: OP_FALSE, but we don't actually use these nodes
        # we use the Bitcoin default challenge except we do it as a 2-of-2, which means it should fail
        shared_args3 = ["-signetchallenge=522103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"]

        self.extra_args = [
            shared_args1, shared_args1,
            shared_args2, shared_args2,
            shared_args3, shared_args3,
        ]

    def run_test(self):
        self.log.info("basic tests using OP_TRUE challenge")

        self.log.info('getmininginfo')
        mining_info = self.nodes[0].getmininginfo()
        assert_equal(mining_info['blocks'], 0)
        assert_equal(mining_info['chain'], 'signet')
        assert 'currentblocktx' not in mining_info
        assert 'currentblockweight' not in mining_info
        assert_equal(mining_info['networkhashps'], Decimal('0'))
        assert_equal(mining_info['pooledtx'], 0)

        self.nodes[0].generate(1)

        # Dogecoin: No default Signet network, so pregenerated blocks are not relevant.
        # self.log.info("pregenerated signet blocks check")

        # height = 0
        # for block in signet_blocks:
        #    assert_equal(self.nodes[2].submitblock(block, None)
        #    height += 1
        #    assert_equal(self.nodes[2].getblockcount(), height)

        self.log.info("pregenerated signet blocks check (incompatible solution)")
        assert_equal(self.nodes[4].submitblock(bad_signet_blksig_block), 'bad-signet-blksig')

        self.log.info("test that signet logs the network magic on node start")
        with self.nodes[0].assert_debug_log(["Signet derived magic (message start)"]):
            self.restart_node(0)


if __name__ == '__main__':
    SignetBasicTest().main()