Method Block

src/test/validation_block_tests.cpp:78–108

};

std::shared_ptr<CBlock> MinerTestingSetup::Block(const uint256& prev_hash)
{
    static int i = 0;
    static uint64_t time = Params().GenesisBlock().nTime;

    auto mining{interfaces::MakeMining(m_node)};
    auto block_template{mining->createNewBlock({
        .coinbase_output_script = CScript{} << i++ << OP_TRUE,
    }, /*cooldown=*/false)};
    BOOST_REQUIRE(block_template);
    auto pblock = std::make_shared<CBlock>(block_template->getBlock());
    pblock->hashPrevBlock = prev_hash;
    pblock->nTime = ++time;

    // Make the coinbase transaction with two outputs:
    // One zero-value one that has a unique pubkey to make sure that blocks at the same height can have a different hash
    // Another one that has the coinbase reward in a P2WSH with OP_TRUE as witness program to make it easy to spend
    CMutableTransaction txCoinbase(*pblock->vtx[0]);
    txCoinbase.vout.resize(2);
    txCoinbase.vout[1].scriptPubKey = P2WSH_OP_TRUE;
    txCoinbase.vout[1].nValue = txCoinbase.vout[0].nValue;
    txCoinbase.vout[0].nValue = 0;
    txCoinbase.vin[0].scriptWitness.SetNull();
    // Always pad with OP_0 as dummy extraNonce (also avoids bad-cb-length error for block <=16)
    const int prev_height{WITH_LOCK(::cs_main, return m_node.chainman->m_blockman.LookupBlockIndex(prev_hash)->nHeight)};
    txCoinbase.vin[0].scriptSig = CScript{} << prev_height + 1 << OP_0;
    txCoinbase.nLockTime = static_cast<uint32_t>(prev_height);
    pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase));

    return pblock;
}

std::shared_ptr<CBlock> MinerTestingSetup::FinalizeBlock(std::shared_ptr<CBlock> pblock)
{