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// Copyright (c) 2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TEST_UTIL_TXMEMPOOL_H
#define BITCOIN_TEST_UTIL_TXMEMPOOL_H
#include <policy/packages.h>
#include <txmempool.h>
#include <util/time.h>
namespace node {
struct NodeContext;
}
struct PackageMempoolAcceptResult;
CTxMemPool::Options MemPoolOptionsForTest(const node::NodeContext& node);
struct TestMemPoolEntryHelper {
// Default values
CAmount nFee{0};
NodeSeconds time{};
unsigned int nHeight{1};
uint64_t m_sequence{0};
bool spendsCoinbase{false};
unsigned int sigOpCost{4};
LockPoints lp;
CTxMemPoolEntry FromTx(const CMutableTransaction& tx) const;
CTxMemPoolEntry FromTx(const CTransactionRef& tx) const;
// Change the default value
TestMemPoolEntryHelper& Fee(CAmount _fee) { nFee = _fee; return *this; }
TestMemPoolEntryHelper& Time(NodeSeconds tp) { time = tp; return *this; }
TestMemPoolEntryHelper& Height(unsigned int _height) { nHeight = _height; return *this; }
TestMemPoolEntryHelper& Sequence(uint64_t _seq) { m_sequence = _seq; return *this; }
TestMemPoolEntryHelper& SpendsCoinbase(bool _flag) { spendsCoinbase = _flag; return *this; }
TestMemPoolEntryHelper& SigOpsCost(unsigned int _sigopsCost) { sigOpCost = _sigopsCost; return *this; }
};
/** Check expected properties for every PackageMempoolAcceptResult, regardless of value. Returns
* a string if an error occurs with error populated, nullopt otherwise. If mempool is provided,
* checks that the expected transactions are in mempool (this should be set to nullptr for a test_accept).
*/
std::optional<std::string> CheckPackageMempoolAcceptResult(const Package& txns,
const PackageMempoolAcceptResult& result,
bool expect_valid,
const CTxMemPool* mempool);
/** For every transaction in tx_pool, check v3 invariants:
* - a v3 tx's ancestor count must be within V3_ANCESTOR_LIMIT
* - a v3 tx's descendant count must be within V3_DESCENDANT_LIMIT
* - if a v3 tx has ancestors, its sigop-adjusted vsize must be within V3_CHILD_MAX_VSIZE
* - any non-v3 tx must only have non-v3 parents
* - any v3 tx must only have v3 parents
* */
void CheckMempoolV3Invariants(const CTxMemPool& tx_pool);
#endif // BITCOIN_TEST_UTIL_TXMEMPOOL_H
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