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Merge a100c42a13 into merged_master (Bitcoin PR bitcoin/bitcoin#24927)

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This commit is contained in:
James Dorfman 2024-09-06 19:50:01 +00:00
commit ef7aeb3e50
4 changed files with 73 additions and 12 deletions
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53
src/test/util/setup_common.cpp
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@ -47,6 +47,7 @@
#include <validationinterface.h>
#include <walletinitinterface.h>
#include <algorithm>
#include <functional>
#include <stdexcept>
@ -185,7 +186,7 @@ ChainTestingSetup::ChainTestingSetup(const std::string& chainName, const std::st
GetMainSignals().RegisterBackgroundSignalScheduler(*m_node.scheduler);
m_node.fee_estimator = std::make_unique<CBlockPolicyEstimator>();
m_node.mempool = std::make_unique<CTxMemPool>(m_node.fee_estimator.get(), 1);
m_node.mempool = std::make_unique<CTxMemPool>(m_node.fee_estimator.get(), m_node.args->GetIntArg("-checkmempool", 1));
m_cache_sizes = CalculateCacheSizes(m_args);
@ -266,8 +267,8 @@ TestingSetup::TestingSetup(const std::string& chainName, const std::string& fedp
}
}
TestChain100Setup::TestChain100Setup(const std::vector<const char*>& extra_args)
: TestingSetup{CBaseChainParams::REGTEST, "", extra_args} // ELEMENTS: added empty fedpegscript here
TestChain100Setup::TestChain100Setup(const std::string& chain_name, const std::string& fedpegscript, const std::vector<const char*>& extra_args)
: TestingSetup{chain_name, fedpegscript, extra_args}
{
SetMockTime(1598887952);
constexpr std::array<unsigned char, 32> vchKey = {
@ -381,6 +382,52 @@ CMutableTransaction TestChain100Setup::CreateValidMempoolTransaction(CTransactio
return mempool_txn;
}
std::vector<CTransactionRef> TestChain100Setup::PopulateMempool(FastRandomContext& det_rand, size_t num_transactions, bool submit)
{
std::vector<CTransactionRef> mempool_transactions;
std::deque<std::pair<COutPoint, CConfidentialValue>> unspent_prevouts;
std::transform(m_coinbase_txns.begin(), m_coinbase_txns.end(), std::back_inserter(unspent_prevouts),
[](const auto& tx){ return std::make_pair(COutPoint(tx->GetHash(), 0), tx->vout[0].nValue); });
while (num_transactions > 0 && !unspent_prevouts.empty()) {
// The number of inputs and outputs are random, between 1 and 24.
CMutableTransaction mtx = CMutableTransaction();
const size_t num_inputs = det_rand.randrange(24) + 1;
CAmount total_in{0};
for (size_t n{0}; n < num_inputs; ++n) {
if (unspent_prevouts.empty()) break;
const auto& [prevout, amount] = unspent_prevouts.front();
mtx.vin.push_back(CTxIn(prevout, CScript()));
total_in += amount.GetAmount();
unspent_prevouts.pop_front();
}
const size_t num_outputs = det_rand.randrange(24) + 1;
// Approximately 1000sat "fee," equal output amounts.
const CAmount amount_per_output = (total_in - 1000) / num_outputs;
for (size_t n{0}; n < num_outputs; ++n) {
CScript spk = CScript() << CScriptNum(num_transactions + n);
mtx.vout.push_back(CTxOut(CAsset(), CConfidentialValue(amount_per_output), spk));
}
CTransactionRef ptx = MakeTransactionRef(mtx);
mempool_transactions.push_back(ptx);
if (amount_per_output > 2000) {
// If the value is high enough to fund another transaction + fees, keep track of it so
// it can be used to build a more complex transaction graph. Insert randomly into
// unspent_prevouts for extra randomness in the resulting structures.
for (size_t n{0}; n < num_outputs; ++n) {
unspent_prevouts.push_back(std::make_pair(COutPoint(ptx->GetHash(), n), amount_per_output));
std::swap(unspent_prevouts.back(), unspent_prevouts[det_rand.randrange(unspent_prevouts.size())]);
}
}
if (submit) {
LOCK2(m_node.mempool->cs, cs_main);
LockPoints lp;
m_node.mempool->addUnchecked(CTxMemPoolEntry(ptx, 1000, 0, 1, false, 4, lp, /*setPeginsSpent=*/{}));
}
--num_transactions;
}
return mempool_transactions;
}
CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CMutableTransaction& tx) const
{
return FromTx(MakeTransactionRef(tx));