Function BOOST_FIXTURE_TEST_CASE

src/test/versionbits_tests.cpp:442–493

}; // struct BlockVersionTest

BOOST_FIXTURE_TEST_CASE(versionbits_computeblockversion, BlockVersionTest)
{
    VersionBitsCache vbcache;

    // check that any deployment on any chain can conceivably reach both
    // ACTIVE and FAILED states in roughly the way we expect
    for (const auto& chain_type: {ChainType::MAIN, ChainType::TESTNET, ChainType::TESTNET4, ChainType::SIGNET, ChainType::REGTEST}) {
        const auto chainParams = CreateChainParams(*m_node.args, chain_type);
        uint32_t chain_all_vbits{0};
        for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++i) {
            const auto dep = static_cast<Consensus::DeploymentPos>(i);
            // Check that no bits are reused (within the same chain). This is
            // disallowed because the transition to FAILED (on timeout) does
            // not take precedence over STARTED/LOCKED_IN. So all softforks on
            // the same bit might overlap, even when non-overlapping start-end
            // times are picked.
            const auto& dep_info = chainParams->GetConsensus().vDeployments[dep];
            const uint32_t dep_mask{uint32_t{1} << dep_info.bit};
            BOOST_CHECK(!(chain_all_vbits & dep_mask));
            chain_all_vbits |= dep_mask;
            BOOST_CHECK(0 <= dep_info.bit && dep_info.bit < VERSIONBITS_MAX_NUM_BITS);
            if (chain_type != ChainType::REGTEST) {
                if (dep == Consensus::DEPLOYMENT_TESTDUMMY) {
                    BOOST_CHECK_EQUAL(dep_info.nStartTime, Consensus::BIP9Deployment::NEVER_ACTIVE);
                    BOOST_CHECK_EQUAL(dep_info.nTimeout, Consensus::BIP9Deployment::NO_TIMEOUT);
                } else {
                    BOOST_CHECK(dep_info.bit < VERSIONBITS_NUM_BITS);
                }
            }
            check_computeblockversion(vbcache, chainParams->GetConsensus(), dep);
        }
    }

    {
        // Use regtest/testdummy to ensure we always exercise some
        // deployment that's not always/never active
        ArgsManager args;
        args.ForceSetArg("-vbparams", "testdummy:1199145601:1230767999"); // January 1, 2008 - December 31, 2008
        const auto chainParams = CreateChainParams(args, ChainType::REGTEST);
        check_computeblockversion(vbcache, chainParams->GetConsensus(), Consensus::DEPLOYMENT_TESTDUMMY);
    }

    {
        // Use regtest/testdummy to ensure we always exercise the
        // min_activation_height test, even if we're not using that in a
        // live deployment
        ArgsManager args;
        args.ForceSetArg("-vbparams", "testdummy:1199145601:1230767999:403200"); // January 1, 2008 - December 31, 2008, min act height 403200
        const auto chainParams = CreateChainParams(args, ChainType::REGTEST);
        check_computeblockversion(vbcache, chainParams->GetConsensus(), Consensus::DEPLOYMENT_TESTDUMMY);
    }
}

BOOST_AUTO_TEST_SUITE_END()