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/*
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 createRandomStateTest.cpp
* @author Christoph Jentzsch <jentzsch.simulationsoftware@gmail.com>
* @date 2015
* Creating a random state test.
*/
#include <string>
#include <iostream>
#include <chrono>
#include <boost/random.hpp>
#include <boost/filesystem/path.hpp>
#pragma GCC diagnostic ignored "-Wunused-parameter"
#include <json_spirit/json_spirit.h>
#include <json_spirit/json_spirit_reader_template.h>
#include <json_spirit/json_spirit_writer_template.h>
#include <libdevcore/CommonIO.h>
#include <libdevcore/CommonData.h>
#include <libevmcore/Instruction.h>
#include <libevm/VMFactory.h>
#include "TestHelper.h"
#include "vm.h"
using namespace std;
using namespace json_spirit;
using namespace dev;
void doStateTests(json_spirit::mValue& _v);
int main(int argc, char *argv[])
{
g_logVerbosity = 0;
// create random code
boost::random::mt19937 gen;
auto now = chrono::steady_clock::now().time_since_epoch();
auto timeSinceEpoch = chrono::duration_cast<chrono::nanoseconds>(now).count();
gen.seed(static_cast<unsigned int>(timeSinceEpoch));
// set min and max length of the random evm code
boost::random::uniform_int_distribution<> lengthOfCodeDist(8, 24);
boost::random::uniform_int_distribution<> reasonableInputValuesSize(0, 7);
boost::random::uniform_int_distribution<> opcodeDist(0, 255);
boost::random::uniform_int_distribution<> BlockInfoOpcodeDist(0x40, 0x45);
boost::random::uniform_int_distribution<> uniformInt(0, 0x7fffffff);
boost::random::variate_generator<boost::mt19937&, boost::random::uniform_int_distribution<> > randGenInputValue(gen, reasonableInputValuesSize);
boost::random::variate_generator<boost::mt19937&, boost::random::uniform_int_distribution<> > randGenUniformInt(gen, uniformInt);
boost::random::variate_generator<boost::mt19937&, boost::random::uniform_int_distribution<> > randGen(gen, opcodeDist);
boost::random::variate_generator<boost::mt19937&, boost::random::uniform_int_distribution<> > randGenBlockInfoOpcode(gen, BlockInfoOpcodeDist);
std::vector<u256> reasonableInputValues;
reasonableInputValues.push_back(0);
reasonableInputValues.push_back(1);
reasonableInputValues.push_back(50000);
reasonableInputValues.push_back(u256("0x10000000000000000000000000000000000000000"));
reasonableInputValues.push_back(u256("0xffffffffffffffffffffffffffffffffffffffff"));
reasonableInputValues.push_back(u256("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe"));
reasonableInputValues.push_back(u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
reasonableInputValues.push_back(u256("0x945304eb96065b2a98b57a48a06ae28d285a71b5"));
reasonableInputValues.push_back(randGenUniformInt());
int lengthOfCode = lengthOfCodeDist(gen);
string randomCode;
for (int i = 0; i < lengthOfCode; ++i)
{
// pre-fill stack to avoid that most of the test fail with a stackunderflow
if (i < 8 && (randGen() < 192))
{
randomCode += randGen() < 32 ? toHex(toCompactBigEndian((uint8_t)randGenBlockInfoOpcode())) : "7f" + toHex(reasonableInputValues[randGenInputValue()]);
continue;
}
uint8_t opcode = randGen();
// disregard all invalid commands, except of one (0x0c)
if ((dev::eth::isValidInstruction(dev::eth::Instruction(opcode)) || (randGen() > 250)))
randomCode += toHex(toCompactBigEndian(opcode));
else
i--;
}
string const s = R"(
{
"randomStatetest" : {
"env" : {
"currentCoinbase" : "945304eb96065b2a98b57a48a06ae28d285a71b5",
"currentDifficulty" : "5623894562375",
"currentGasLimit" : "115792089237316195423570985008687907853269984665640564039457584007913129639935",
"currentNumber" : "0",
"currentTimestamp" : "1",
"previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"
},
"pre" : {
"095e7baea6a6c7c4c2dfeb977efac326af552d87" : {
"balance" : "0",
"code" : "0x6001600101600055",
"nonce" : "0",
"storage" : {
}
},
"945304eb96065b2a98b57a48a06ae28d285a71b5" : {
"balance" : "46",
"code" : "0x6000355415600957005b60203560003555",
"nonce" : "0",
"storage" : {
}
},
"a94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
"balance" : "1000000000000000000",
"code" : "0x",
"nonce" : "0",
"storage" : {
}
}
},
"transaction" : {
"data" : "0x42",
"gasLimit" : "400000",
"gasPrice" : "1",
"nonce" : "0",
"secretKey" : "45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8",
"to" : "095e7baea6a6c7c4c2dfeb977efac326af552d87",
"value" : "100000"
}
}
}
)";
mValue v;
read_string(s, v);
// insert new random code
v.get_obj().find("randomStatetest")->second.get_obj().find("pre")->second.get_obj().begin()->second.get_obj()["code"] = "0x" + randomCode + (randGen() > 128 ? "55" : "") + (randGen() > 128 ? "60005155" : "");
// insert new data in tx
v.get_obj().find("randomStatetest")->second.get_obj().find("transaction")->second.get_obj()["data"] = "0x" + randomCode;
// insert new value in tx
v.get_obj().find("randomStatetest")->second.get_obj().find("transaction")->second.get_obj()["value"] = toString(randGenUniformInt());
// insert new gasLimit in tx
v.get_obj().find("randomStatetest")->second.get_obj().find("transaction")->second.get_obj()["gasLimit"] = "0x" + toHex(toCompactBigEndian((int)randGenUniformInt()));
// fill test
doStateTests(v);
// stream to output for further handling by the bash script
cout << json_spirit::write_string(v, true);
return 0;
}
void doStateTests(json_spirit::mValue& _v)
{
eth::VMFactory::setKind(eth::VMKind::Interpreter);
for (auto& i: _v.get_obj())
{
//cerr << i.first << endl;
mObject& o = i.second.get_obj();
assert(o.count("env") > 0);
assert(o.count("pre") > 0);
assert(o.count("transaction") > 0);
test::ImportTest importer(o, true);
eth::State theState = importer.m_statePre;
bytes output;
try
{
output = theState.execute(test::lastHashes(importer.m_environment.currentBlock.number), importer.m_transaction).output;
}
catch (Exception const& _e)
{
cnote << "state execution did throw an exception: " << diagnostic_information(_e);
theState.commit();
}
catch (std::exception const& _e)
{
cnote << "state execution did throw an exception: " << _e.what();
}
#if ETH_FATDB
importer.exportTest(output, theState);
#else
cout << "You can not fill tests when FATDB is switched off";
#endif
}
}
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