Method CreateAndProcessBlock

src/test/test_bitcoin.cpp:147–175

Create a new block with just given transactions, coinbase paying to scriptPubKey, and try to add it to the current chain.

// scriptPubKey, and try to add it to the current chain.
//
CBlock
TestChain100Setup::CreateAndProcessBlock(const std::vector<CMutableTransaction>& txns, const CScript& scriptPubKey)
{
    const CChainParams& chainparams = Params();
    std::unique_ptr<CBlockTemplate> pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);
    CBlock& block = pblocktemplate->block;

    // Replace mempool-selected txns with just coinbase plus passed-in txns:
    block.vtx.resize(1);
    for (const CMutableTransaction& tx : txns)
        block.vtx.push_back(MakeTransactionRef(tx));
    // IncrementExtraNonce creates a valid coinbase and merkleRoot
    {
        LOCK(cs_main);
        unsigned int extraNonce = 0;
        IncrementExtraNonce(&block, chainActive.Tip(), extraNonce);
    }

    // TODO(h4x3rotab): Generate Equihash solution if applicable.
    while (!CheckProofOfWork(block.GetHash(), block.nBits, false, chainparams.GetConsensus())) {
        block.nNonce = ArithToUint256(UintToArith256(block.nNonce) + 1);
    }

    std::shared_ptr<const CBlock> shared_pblock = std::make_shared<const CBlock>(block);
    ProcessNewBlock(chainparams, shared_pblock, true, nullptr);

    CBlock result = block;
    return result;
}

TestChain100Setup::~TestChain100Setup()
{