util.h

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// Copyright (c) 2021-2022 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_WALLET_TEST_UTIL_H
#define BITCOIN_WALLET_TEST_UTIL_H
 
#include <addresstype.h>
#include <wallet/db.h>
 
#include <memory>
 
class ArgsManager;
class CChain;
class CKey;
enum class OutputType;
namespace interfaces {
class Chain;
} // namespace interfaces
 
namespace wallet {
class CWallet;
class WalletDatabase;
struct WalletContext;
 
static const DatabaseFormat DATABASE_FORMATS[] = {
#ifdef USE_SQLITE
       DatabaseFormat::SQLITE,
#endif
#ifdef USE_BDB
       DatabaseFormat::BERKELEY,
#endif
};
 
const std::string ADDRESS_BCRT1_UNSPENDABLE = "bcrt1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xueyj";
 
std::unique_ptr<CWallet> CreateSyncedWallet(interfaces::Chain& chain, CChain& cchain, const CKey& key);
 
std::shared_ptr<CWallet> TestLoadWallet(WalletContext& context);
std::shared_ptr<CWallet> TestLoadWallet(std::unique_ptr<WalletDatabase> database, WalletContext& context, uint64_t create_flags);
void TestUnloadWallet(std::shared_ptr<CWallet>&& wallet);
 
// Creates a copy of the provided database
std::unique_ptr<WalletDatabase> DuplicateMockDatabase(WalletDatabase& database);
 
std::string getnewaddress(CWallet& w);
CTxDestination getNewDestination(CWallet& w, OutputType output_type);
 
using MockableData = std::map<SerializeData, SerializeData, std::less<>>;
 
class MockableCursor: public DatabaseCursor
{
public:
    MockableData::const_iterator m_cursor;
    MockableData::const_iterator m_cursor_end;
    bool m_pass;
 
    explicit MockableCursor(const MockableData& records, bool pass) : m_cursor(records.begin()), m_cursor_end(records.end()), m_pass(pass) {}
    MockableCursor(const MockableData& records, bool pass, Span<const std::byte> prefix);
    ~MockableCursor() {}
 
    Status Next(DataStream& key, DataStream& value) override;
};
 
class MockableBatch : public DatabaseBatch
{
private:
    MockableData& m_records;
    bool m_pass;
 
    bool ReadKey(DataStream&& key, DataStream& value) override;
    bool WriteKey(DataStream&& key, DataStream&& value, bool overwrite=true) override;
    bool EraseKey(DataStream&& key) override;
    bool HasKey(DataStream&& key) override;
    bool ErasePrefix(Span<const std::byte> prefix) override;
 
public:
    explicit MockableBatch(MockableData& records, bool pass) : m_records(records), m_pass(pass) {}
    ~MockableBatch() {}
 
    void Flush() override {}
    void Close() override {}
 
    std::unique_ptr<DatabaseCursor> GetNewCursor() override
    {
        return std::make_unique<MockableCursor>(m_records, m_pass);
    }
    std::unique_ptr<DatabaseCursor> GetNewPrefixCursor(Span<const std::byte> prefix) override {
        return std::make_unique<MockableCursor>(m_records, m_pass, prefix);
    }
    bool TxnBegin() override { return m_pass; }
    bool TxnCommit() override { return m_pass; }
    bool TxnAbort() override { return m_pass; }
};
 
class MockableDatabase : public WalletDatabase
{
public:
    MockableData m_records;
    bool m_pass{true};
 
    MockableDatabase(MockableData records = {}) : WalletDatabase(), m_records(records) {}
    ~MockableDatabase() {};
 
    void Open() override {}
    void AddRef() override {}
    void RemoveRef() override {}
 
    bool Rewrite(const char* pszSkip=nullptr) override { return m_pass; }
    bool Backup(const std::string& strDest) const override { return m_pass; }
    void Flush() override {}
    void Close() override {}
    bool PeriodicFlush() override { return m_pass; }
    void IncrementUpdateCounter() override {}
    void ReloadDbEnv() override {}
 
    std::string Filename() override { return "mockable"; }
    std::string Format() override { return "mock"; }
    std::unique_ptr<DatabaseBatch> MakeBatch(bool flush_on_close = true) override { return std::make_unique<MockableBatch>(m_records, m_pass); }
};
 
std::unique_ptr<WalletDatabase> CreateMockableWalletDatabase(MockableData records = {});
 
MockableDatabase& GetMockableDatabase(CWallet& wallet);
} // namespace wallet
 
#endif // BITCOIN_WALLET_TEST_UTIL_H