mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
500 lines
13 KiB
C++
500 lines
13 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file state.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* State test functions.
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*/
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#include <fstream>
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#include <cstdint>
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#include <libethential/Log.h>
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#include <libevmface/Instruction.h>
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#include <libevm/ExtVMFace.h>
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#include <libevm/VM.h>
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#include <liblll/Compiler.h>
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#include <libethereum/Transaction.h>
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#include "JsonSpiritHeaders.h"
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#include <boost/test/unit_test.hpp>
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using namespace std;
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using namespace json_spirit;
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using namespace eth;
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namespace eth { namespace test {
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class FakeExtVM: public ExtVMFace
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{
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public:
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FakeExtVM()
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{}
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FakeExtVM(BlockInfo const& _previousBlock, BlockInfo const& _currentBlock):
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ExtVMFace(Address(), Address(), Address(), 0, 1, bytesConstRef(), bytesConstRef(), _previousBlock, _currentBlock)
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{}
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u256 store(u256 _n)
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{
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return get<2>(addresses[myAddress])[_n];
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}
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void setStore(u256 _n, u256 _v)
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{
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get<2>(addresses[myAddress])[_n] = _v;
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}
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u256 balance(Address _a) { return get<0>(addresses[_a]); }
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void subBalance(u256 _a) { get<0>(addresses[myAddress]) -= _a; }
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u256 txCount(Address _a) { return get<1>(addresses[_a]); }
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void suicide(Address _a)
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{
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get<0>(addresses[_a]) += get<0>(addresses[myAddress]);
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addresses.erase(myAddress);
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}
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h160 create(u256 _endowment, u256* _gas, bytesConstRef _init)
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{
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Address na = right160(sha3(rlpList(myAddress, get<1>(addresses[myAddress]))));
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/* if (get<0>(addresses[myAddress]) >= _endowment)
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{
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get<1>(addresses[myAddress])++;
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get<0>(addresses[na]) = _endowment;
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// TODO: actually execute...
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}*/
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Transaction t;
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t.value = _endowment;
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t.gasPrice = gasPrice;
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t.gas = *_gas;
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t.data = _init.toBytes();
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callcreates.push_back(t);
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return na;
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}
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bool call(Address _receiveAddress, u256 _value, bytesConstRef _data, u256* _gas, bytesRef _out)
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{
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/* if (get<0>(addresses[myAddress]) >= _value)
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{
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get<1>(addresses[myAddress])++;
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get<0>(addresses[_receiveAddress]) += _value;
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// TODO: actually execute...
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}*/
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Transaction t;
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t.value = _value;
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t.gasPrice = gasPrice;
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t.gas = *_gas;
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t.data = _data.toVector();
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t.receiveAddress = _receiveAddress;
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callcreates.push_back(t);
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(void)_out;
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return true;
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}
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void setTransaction(Address _caller, u256 _value, u256 _gasPrice, bytes const& _data)
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{
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caller = origin = _caller;
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value = _value;
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data = &(thisTxData = _data);
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gasPrice = _gasPrice;
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}
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void setContract(Address _myAddress, u256 _myBalance, u256 _myNonce, map<u256, u256> const& _storage, bytes const& _code)
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{
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myAddress = _myAddress;
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set(myAddress, _myBalance, _myNonce, _storage, _code);
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}
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void set(Address _a, u256 _myBalance, u256 _myNonce, map<u256, u256> const& _storage, bytes const& _code)
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{
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get<0>(addresses[_a]) = _myBalance;
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get<1>(addresses[_a]) = _myNonce;
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get<2>(addresses[_a]) = _storage;
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get<3>(addresses[_a]) = _code;
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}
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void reset(u256 _myBalance, u256 _myNonce, map<u256, u256> const& _storage)
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{
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callcreates.clear();
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addresses.clear();
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set(myAddress, _myBalance, _myNonce, _storage, get<3>(addresses[myAddress]));
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}
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static u256 toInt(mValue const& _v)
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{
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switch (_v.type())
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{
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case str_type: return u256(_v.get_str());
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case int_type: return (u256)_v.get_uint64();
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case bool_type: return (u256)(uint64_t)_v.get_bool();
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case real_type: return (u256)(uint64_t)_v.get_real();
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default: cwarn << "Bad type for scalar: " << _v.type();
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}
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return 0;
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}
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static byte toByte(mValue const& _v)
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{
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switch (_v.type())
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{
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case str_type: return (byte)stoi(_v.get_str());
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case int_type: return (byte)_v.get_uint64();
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case bool_type: return (byte)_v.get_bool();
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case real_type: return (byte)_v.get_real();
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default: cwarn << "Bad type for scalar: " << _v.type();
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}
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return 0;
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}
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static void push(mObject& o, string const& _n, u256 _v)
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{
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if (_v < (u256)1 << 64)
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o[_n] = (uint64_t)_v;
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else
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o[_n] = toString(_v);
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}
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static void push(mArray& a, u256 _v)
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{
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if (_v < (u256)1 << 64)
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a.push_back((uint64_t)_v);
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else
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a.push_back(toString(_v));
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}
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mObject exportEnv()
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{
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mObject ret;
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ret["previousHash"] = toString(previousBlock.hash);
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push(ret, "currentDifficulty", currentBlock.difficulty);
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push(ret, "currentTimestamp", currentBlock.timestamp);
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ret["currentCoinbase"] = toString(currentBlock.coinbaseAddress);
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push(ret, "currentNumber", currentBlock.number);
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push(ret, "currentGasLimit", currentBlock.gasLimit);
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return ret;
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}
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void importEnv(mObject& _o)
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{
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BOOST_REQUIRE(_o.count("previousHash") > 0);
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BOOST_REQUIRE(_o.count("currentGasLimit") > 0);
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BOOST_REQUIRE(_o.count("currentDifficulty") > 0);
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BOOST_REQUIRE(_o.count("currentTimestamp") > 0);
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BOOST_REQUIRE(_o.count("currentCoinbase") > 0);
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BOOST_REQUIRE(_o.count("currentNumber") > 0);
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previousBlock.hash = h256(_o["previousHash"].get_str());
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currentBlock.number = toInt(_o["currentNumber"]);
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currentBlock.gasLimit = toInt(_o["currentGasLimit"]);
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currentBlock.difficulty = toInt(_o["currentDifficulty"]);
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currentBlock.timestamp = toInt(_o["currentTimestamp"]);
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currentBlock.coinbaseAddress = Address(_o["currentCoinbase"].get_str());
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}
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mObject exportState()
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{
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mObject ret;
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for (auto const& a: addresses)
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{
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mObject o;
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push(o, "balance", get<0>(a.second));
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push(o, "nonce", get<1>(a.second));
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{
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mObject store;
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string curKey;
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u256 li = 0;
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mArray curVal;
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for (auto const& s: get<2>(a.second))
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{
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if (!li || s.first > li + 8)
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{
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if (li)
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store[curKey] = curVal;
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li = s.first;
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curKey = toString(li);
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curVal = mArray();
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}
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else
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for (; li != s.first; ++li)
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curVal.push_back(0);
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push(curVal, s.second);
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++li;
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}
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if (li)
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store[curKey] = curVal;
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o["storage"] = store;
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}
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{
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mArray d;
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for (auto const& i: get<3>(a.second))
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push(d, i);
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o["code"] = d;
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}
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ret[toString(a.first)] = o;
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}
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return ret;
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}
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void importState(mObject& _o)
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{
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for (auto const& i: _o)
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{
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mObject o = i.second.get_obj();
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BOOST_REQUIRE(o.count("balance") > 0);
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BOOST_REQUIRE(o.count("nonce") > 0);
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BOOST_REQUIRE(o.count("storage") > 0);
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BOOST_REQUIRE(o.count("code") > 0);
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auto& a = addresses[Address(i.first)];
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get<0>(a) = toInt(o["balance"]);
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get<1>(a) = toInt(o["nonce"]);
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for (auto const& j: o["storage"].get_obj())
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{
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u256 adr(j.first);
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for (auto const& k: j.second.get_array())
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get<2>(a)[adr++] = toInt(k);
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}
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if (o["code"].type() == str_type)
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get<3>(a) = compileLLL(o["code"].get_str());
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else
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{
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get<3>(a).clear();
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for (auto const& j: o["code"].get_array())
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get<3>(a).push_back(toByte(j));
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}
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}
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}
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mObject exportExec()
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{
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mObject ret;
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ret["address"] = toString(myAddress);
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ret["caller"] = toString(caller);
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ret["origin"] = toString(origin);
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push(ret, "value", value);
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push(ret, "gasPrice", gasPrice);
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push(ret, "gas", gas);
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mArray d;
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for (auto const& i: data)
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push(d, i);
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ret["data"] = d;
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mArray c;
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for (auto const& i: code)
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push(c, i);
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ret["code"] = c;
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return ret;
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}
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void importExec(mObject& _o)
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{
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BOOST_REQUIRE(_o.count("address")> 0);
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BOOST_REQUIRE(_o.count("caller") > 0);
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BOOST_REQUIRE(_o.count("origin") > 0);
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BOOST_REQUIRE(_o.count("value") > 0);
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BOOST_REQUIRE(_o.count("data") > 0);
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BOOST_REQUIRE(_o.count("gasPrice") > 0);
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BOOST_REQUIRE(_o.count("gas") > 0);
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myAddress = Address(_o["address"].get_str());
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caller = Address(_o["caller"].get_str());
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origin = Address(_o["origin"].get_str());
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value = toInt(_o["value"]);
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gasPrice = toInt(_o["gasPrice"]);
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gas = toInt(_o["gas"]);
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thisTxCode.clear();
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code = &thisTxCode;
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if (_o["code"].type() == str_type)
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thisTxCode = compileLLL(_o["code"].get_str());
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else if (_o["code"].type() == array_type)
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for (auto const& j: _o["code"].get_array())
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thisTxCode.push_back(toByte(j));
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else
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code.reset();
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thisTxData.clear();
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if (_o["data"].type() == str_type)
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thisTxData = fromHex(_o["data"].get_str());
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else
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for (auto const& j: _o["data"].get_array())
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thisTxData.push_back(toByte(j));
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data = &thisTxData;
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}
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mArray exportCallCreates()
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{
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mArray ret;
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for (Transaction const& tx: callcreates)
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{
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mObject o;
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o["destination"] = toString(tx.receiveAddress);
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push(o, "gasLimit", tx.gas);
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push(o, "value", tx.value);
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mArray d;
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for (auto const& i: tx.data)
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push(d, i);
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o["data"] = d;
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ret.push_back(o);
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}
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return ret;
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}
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void importCallCreates(mArray& _callcreates)
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{
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for (mValue& v: _callcreates)
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{
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auto tx = v.get_obj();
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BOOST_REQUIRE(tx.count("data") > 0);
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BOOST_REQUIRE(tx.count("value") > 0);
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BOOST_REQUIRE(tx.count("destination") > 0);
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BOOST_REQUIRE(tx.count("gasLimit") > 0);
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Transaction t;
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t.receiveAddress = Address(tx["destination"].get_str());
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t.value = toInt(tx["value"]);
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t.gas = toInt(tx["gasLimit"]);
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if (tx["data"].type() == str_type)
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t.data = fromHex(tx["data"].get_str());
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else
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for (auto const& j: tx["data"].get_array())
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t.data.push_back(toByte(j));
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callcreates.push_back(t);
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}
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}
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map<Address, tuple<u256, u256, map<u256, u256>, bytes>> addresses;
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Transactions callcreates;
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bytes thisTxData;
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bytes thisTxCode;
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u256 gas;
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};
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void doTests(json_spirit::mValue& v, bool _fillin)
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{
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for (auto& i: v.get_obj())
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{
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cnote << i.first;
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mObject& o = i.second.get_obj();
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BOOST_REQUIRE(o.count("env") > 0);
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BOOST_REQUIRE(o.count("pre") > 0);
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BOOST_REQUIRE(o.count("exec") > 0);
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VM vm;
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eth::test::FakeExtVM fev;
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fev.importEnv(o["env"].get_obj());
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fev.importState(o["pre"].get_obj());
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if (_fillin)
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o["pre"] = mValue(fev.exportState());
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fev.importExec(o["exec"].get_obj());
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if (!fev.code)
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fev.code = &get<3>(fev.addresses.at(fev.myAddress));
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vm.reset(fev.gas);
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bytes output = vm.go(fev).toBytes();
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if (_fillin)
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{
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o["exec"] = mValue(fev.exportExec());
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o["post"] = mValue(fev.exportState());
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o["callcreates"] = fev.exportCallCreates();
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mArray df;
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for (auto const& i: output)
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FakeExtVM::push(df, i);
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o["out"] = df;
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fev.push(o, "gas", vm.gas());
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}
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else
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{
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BOOST_REQUIRE(o.count("post") > 0);
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BOOST_REQUIRE(o.count("callcreates") > 0);
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BOOST_REQUIRE(o.count("out") > 0);
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BOOST_REQUIRE(o.count("gas") > 0);
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eth::test::FakeExtVM test;
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test.importState(o["post"].get_obj());
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test.importCallCreates(o["callcreates"].get_array());
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int i = 0;
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for (auto const& d: o["out"].get_array())
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{
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BOOST_CHECK_MESSAGE(output[i] == FakeExtVM::toInt(d), "Output byte [" << i << "] different!");
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++i;
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}
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BOOST_CHECK(FakeExtVM::toInt(o["gas"]) == vm.gas());
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BOOST_CHECK(test.addresses == fev.addresses);
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BOOST_CHECK(test.callcreates == fev.callcreates);
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}
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}
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}
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/*string makeTestCase()
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{
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json_spirit::mObject o;
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VM vm;
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BlockInfo pb;
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pb.hash = sha3("previousHash");
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pb.nonce = sha3("previousNonce");
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BlockInfo cb = pb;
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cb.difficulty = 256;
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cb.timestamp = 1;
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cb.coinbaseAddress = toAddress(sha3("coinbase"));
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FakeExtVM fev(pb, cb, 0);
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bytes init;
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fev.setContract(toAddress(sha3("contract")), ether, 0, compileLisp("(suicide (txsender))", false, init), map<u256, u256>());
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o["env"] = fev.exportEnv();
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o["pre"] = fev.exportState();
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fev.setTransaction(toAddress(sha3("sender")), ether, finney, bytes());
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mArray execs;
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execs.push_back(fev.exportExec());
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o["exec"] = execs;
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vm.go(fev);
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o["post"] = fev.exportState();
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o["txs"] = fev.exportTxs();
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return json_spirit::write_string(json_spirit::mValue(o), true);
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}*/
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} } // Namespace Close
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BOOST_AUTO_TEST_CASE(vm_tests)
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{
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// Populate tests first:
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/* try
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{
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cnote << "Populating VM tests...";
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json_spirit::mValue v;
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string s = asString(contents("../../../cpp-ethereum/test/vmtests.json"));
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BOOST_REQUIRE_MESSAGE(s.length() > 0, "Contents of 'vmtests.json' is empty.");
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json_spirit::read_string(s, v);
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eth::test::doTests(v, true);
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writeFile("../../../tests/vmtests.json", asBytes(json_spirit::write_string(v, true)));
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}
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catch (std::exception const& e)
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{
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BOOST_ERROR("Failed VM Test with Exception: " << e.what());
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}
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*/
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try
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{
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cnote << "Testing VM...";
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json_spirit::mValue v;
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string s = asString(contents("../../../tests/vmtests.json"));
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BOOST_REQUIRE_MESSAGE(s.length() > 0, "Contents of 'vmtests.json' is empty. Have you cloned the 'tests' repo branch develop?");
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json_spirit::read_string(s, v);
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eth::test::doTests(v, false);
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}
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catch (std::exception const& e)
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{
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BOOST_ERROR("Failed VM Test with Exception: " << e.what());
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}
|
|
}
|