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 <RLP.h>
using namespace std;
using namespace eth;

int rlpTest()
{
    // int of value 15
    assert(RLP("\x0f") == 15);
    assert(asString(rlp(15)) == "\x0f");

    // 3-character string
    assert(RLP("\x83""dog") == "dog");
    assert(asString(rlp("dog")) == "\x83""dog");

    // 2-item list
    string twoItemListString = "\xc5\x0f\x83""dog";
    RLP twoItemList(twoItemListString);
    assert(twoItemList.itemCount() == 2);
    assert(twoItemList[0] == 15);
    assert(twoItemList[1] == "dog");
    assert(asString(rlpList(15, "dog")) == "\xc5\x0f\x83""dog");

    // null
    assert(RLP("\x80") == "");
    assert(asString(rlp("")) == "\x80");

    // 1-byte (8-bit) int
    assert(RLP("\x81\x80") == 128);
    assert(asString(rlp(128)) == "\x81\x80");

    // 2-byte (16-bit) int
    assert(RLP("\x82\x01\x01") == 257);
    assert(asString(rlp(257)) == "\x82\x01\x01");

    // 32-byte (256-bit) int
    assert(RLP("\xa0\x10\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f") == bigint("0x100102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"));
    assert(asString(rlp(bigint("0x100102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"))) == "\xa0\x10\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f");

    // 56-character string.
    assert(RLP("\xb8\x38""Lorem ipsum dolor sit amet, consectetur adipisicing elit") == "Lorem ipsum dolor sit amet, consectetur adipisicing elit");
    assert(asString(rlp("Lorem ipsum dolor sit amet, consectetur adipisicing elit")) == "\xb8\x38""Lorem ipsum dolor sit amet, consectetur adipisicing elit");

    return 0;
}