path: root/rlp.cpp

/*
    This file is part of cpp-ethereum.

    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    cpp-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @file rlp.cpp
 * @author Gav Wood <i@gavwood.com>
 * @date 2014
 * RLP test functions.
 */

#include <fstream>
#include "JsonSpiritHeaders.h"
#include <Log.h>
#include <RLP.h>
using namespace std;
using namespace eth;
namespace js = json_spirit;

namespace eth
{

template <> class UnitTest<2>
{
public:
    static void buildRLP(js::mValue& _v, RLPStream& _rlp)
    {
        if (_v.type() == js::array_type)
        {
            RLPStream s;
            for (auto& i: _v.get_array())
                buildRLP(i, s);
            _rlp.appendList(s.out());
        }
        else if (_v.type() == js::int_type)
            _rlp.append(_v.get_uint64());
        else if (_v.type() == js::str_type)
        {
            auto s = _v.get_str();
            if (s.size() && s[0] == '#')
                _rlp.append(bigint(s.substr(1)));
            else
                _rlp.append(s);
        }
    }

    int operator()()
    {
        js::mValue v;
        string s = asString(contents("../../tests/rlptest.json"));
        js::read_string(s, v);
        bool passed = true;
        for (auto& i: v.get_obj())
        {
            js::mObject& o = i.second.get_obj();
            cnote << i.first;
            RLPStream s;
            buildRLP(o["in"], s);
            if (!o["out"].is_null() && o["out"].get_str() != toHex(s.out()))
            {
                cwarn << "Test failed.";
                cwarn << "Test says:" << o["out"].get_str();
                cwarn << "Impl says:" << toHex(s.out());
                passed = false;
            }
        }
        return passed ? 0 : 1;
    }

};

}

int rlpTest()
{
    cnote << "Testing RLP...";
    return UnitTest<2>()();
}