logging.h

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// Copyright (c) 2019-2020 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_LOGGING_H
#define BITCOIN_TEST_UTIL_LOGGING_H
 
#include <util/macros.h>
 
#include <functional>
#include <list>
#include <string>
 
class DebugLogHelper
{
    const std::string m_message;
    bool m_found{false};
    std::list<std::function<void(const std::string&)>>::iterator m_print_connection;
 
    using MatchFn = std::function<bool(const std::string* line)>;
    MatchFn m_match;
 
    void check_found();
 
public:
    explicit DebugLogHelper(std::string message, MatchFn match = [](const std::string*){ return true; });
    ~DebugLogHelper() { check_found(); }
};
 
#define ASSERT_DEBUG_LOG(message) DebugLogHelper PASTE2(debugloghelper, __COUNTER__)(message)
 
#endif // BITCOIN_TEST_UTIL_LOGGING_H