setup_common.h

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// Copyright (c) 2015-2022 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_SETUP_COMMON_H
#define BITCOIN_TEST_UTIL_SETUP_COMMON_H

#include <common/args.h> // IWYU pragma: export
#include <key.h>
#include <node/caches.h>
#include <node/context.h> // IWYU pragma: export
#include <primitives/transaction.h>
#include <pubkey.h>
#include <stdexcept>
#include <util/chaintype.h> // IWYU pragma: export
#include <util/check.h>
#include <util/fs.h>
#include <util/string.h>
#include <util/vector.h>

#include <functional>
#include <type_traits>
#include <vector>

class CFeeRate;
class Chainstate;
class FastRandomContext;

extern const std::function<void(const std::string&)> G_TEST_LOG_FUN;

extern const std::function<std::vector<const char*>()> G_TEST_COMMAND_LINE_ARGUMENTS;

// Enable BOOST_CHECK_EQUAL for enum class types
namespace std {
template <typename T>
std::ostream& operator<<(typename std::enable_if<std::is_enum<T>::value, std::ostream>::type& stream, const T& e)
{
    return stream << static_cast<typename std::underlying_type<T>::type>(e);
}
} // namespace std

static constexpr CAmount CENT{1000000};

struct BasicTestingSetup {
    util::SignalInterrupt m_interrupt;
    node::NodeContext m_node; // keep as first member to be destructed last

    explicit BasicTestingSetup(const ChainType chainType = ChainType::MAIN, const std::vector<const char*>& extra_args = {});
    ~BasicTestingSetup();

    const fs::path m_path_root;
    ArgsManager m_args;
};

struct ChainTestingSetup : public BasicTestingSetup {
    node::CacheSizes m_cache_sizes{};
    bool m_coins_db_in_memory{true};
    bool m_block_tree_db_in_memory{true};

    explicit ChainTestingSetup(const ChainType chainType = ChainType::MAIN, const std::vector<const char*>& extra_args = {});
    ~ChainTestingSetup();

    // Supplies a chainstate, if one is needed
    void LoadVerifyActivateChainstate();
};

struct TestingSetup : public ChainTestingSetup {
    explicit TestingSetup(
        const ChainType chainType = ChainType::MAIN,
        const std::vector<const char*>& extra_args = {},
        const bool coins_db_in_memory = true,
        const bool block_tree_db_in_memory = true);
};

struct RegTestingSetup : public TestingSetup {
    RegTestingSetup()
        : TestingSetup{ChainType::REGTEST} {}
};

class CBlock;
struct CMutableTransaction;
class CScript;

struct TestChain100Setup : public TestingSetup {
    TestChain100Setup(
        const ChainType chain_type = ChainType::REGTEST,
        const std::vector<const char*>& extra_args = {},
        const bool coins_db_in_memory = true,
        const bool block_tree_db_in_memory = true);

    CBlock CreateAndProcessBlock(const std::vector<CMutableTransaction>& txns,
                                 const CScript& scriptPubKey,
                                 Chainstate* chainstate = nullptr);

    CBlock CreateBlock(
        const std::vector<CMutableTransaction>& txns,
        const CScript& scriptPubKey,
        Chainstate& chainstate);

    void mineBlocks(int num_blocks);

    std::pair<CMutableTransaction, CAmount> CreateValidTransaction(const std::vector<CTransactionRef>& input_transactions,
                                                                   const std::vector<COutPoint>& inputs,
                                                                   int input_height,
                                                                   const std::vector<CKey>& input_signing_keys,
                                                                   const std::vector<CTxOut>& outputs,
                                                                   const std::optional<CFeeRate>& feerate,
                                                                   const std::optional<uint32_t>& fee_output);
    CMutableTransaction CreateValidMempoolTransaction(const std::vector<CTransactionRef>& input_transactions,
                                                      const std::vector<COutPoint>& inputs,
                                                      int input_height,
                                                      const std::vector<CKey>& input_signing_keys,
                                                      const std::vector<CTxOut>& outputs,
                                                      bool submit = true);

    CMutableTransaction CreateValidMempoolTransaction(CTransactionRef input_transaction,
                                                      uint32_t input_vout,
                                                      int input_height,
                                                      CKey input_signing_key,
                                                      CScript output_destination,
                                                      CAmount output_amount = CAmount(1 * COIN),
                                                      bool submit = true);

    std::vector<CTransactionRef> PopulateMempool(FastRandomContext& det_rand, size_t num_transactions, bool submit);

    void MockMempoolMinFee(const CFeeRate& target_feerate);

    std::vector<CTransactionRef> m_coinbase_txns; // For convenience, coinbase transactions
    CKey coinbaseKey; // private/public key needed to spend coinbase transactions
};

template <class T = const BasicTestingSetup>
std::unique_ptr<T> MakeNoLogFileContext(const ChainType chain_type = ChainType::REGTEST, const std::vector<const char*>& extra_args = {})
{
    const std::vector<const char*> arguments = Cat(
        {
            "-nodebuglogfile",
            "-nodebug",
        },
        extra_args);

    return std::make_unique<T>(chain_type, arguments);
}

CBlock getBlock13b8a();

// define an implicit conversion here so that uint256 may be used directly in BOOST_CHECK_*
std::ostream& operator<<(std::ostream& os, const uint256& num);

class HasReason
{
public:
    explicit HasReason(const std::string& reason) : m_reason(reason) {}
    bool operator()(const std::exception& e) const
    {
        return std::string(e.what()).find(m_reason) != std::string::npos;
    };

private:
    const std::string m_reason;
};

#endif // BITCOIN_TEST_UTIL_SETUP_COMMON_H