solidity/test/ExecutionFramework.cpp
2021-05-26 08:44:23 -05:00

285 lines
8.2 KiB
C++

/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
/**
* @author Christian <c@ethdev.com>
* @date 2016
* Framework for executing contracts and testing them using RPC.
*/
#include <test/ExecutionFramework.h>
#include <test/EVMHost.h>
#include <test/evmc/evmc.hpp>
#include <libsolutil/CommonIO.h>
#include <libsolutil/FunctionSelector.h>
#include <liblangutil/Exceptions.h>
#include <boost/test/framework.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <cstdlib>
using namespace std;
using namespace solidity;
using namespace solidity::util;
using namespace solidity::test;
ExecutionFramework::ExecutionFramework():
ExecutionFramework(solidity::test::CommonOptions::get().evmVersion(), solidity::test::CommonOptions::get().vmPaths)
{
}
ExecutionFramework::ExecutionFramework(langutil::EVMVersion _evmVersion, vector<boost::filesystem::path> const& _vmPaths):
m_evmVersion(_evmVersion),
m_optimiserSettings(solidity::frontend::OptimiserSettings::minimal()),
m_showMessages(solidity::test::CommonOptions::get().showMessages),
m_vmPaths(_vmPaths)
{
if (solidity::test::CommonOptions::get().optimize)
m_optimiserSettings = solidity::frontend::OptimiserSettings::standard();
for (auto const& path: m_vmPaths)
if (EVMHost::getVM(path.string()).has_capability(EVMC_CAPABILITY_EWASM))
m_supportsEwasm = true;
selectVM(evmc_capabilities::EVMC_CAPABILITY_EVM1);
}
void ExecutionFramework::selectVM(evmc_capabilities _cap)
{
m_evmcHost.reset();
for (auto const& path: m_vmPaths)
{
evmc::VM& vm = EVMHost::getVM(path.string());
if (vm.has_capability(_cap))
{
m_evmcHost = make_unique<EVMHost>(m_evmVersion, vm);
break;
}
}
solAssert(m_evmcHost != nullptr, "");
reset();
}
void ExecutionFramework::reset()
{
m_evmcHost->reset();
for (size_t i = 0; i < 10; i++)
m_evmcHost->accounts[EVMHost::convertToEVMC(account(i))].balance =
EVMHost::convertToEVMC(u256(1) << 100);
}
std::pair<bool, string> ExecutionFramework::compareAndCreateMessage(
bytes const& _result,
bytes const& _expectation
)
{
if (_result == _expectation)
return std::make_pair(true, std::string{});
std::string message =
"Invalid encoded data\n"
" Result Expectation\n";
auto resultHex = boost::replace_all_copy(toHex(_result), "0", ".");
auto expectedHex = boost::replace_all_copy(toHex(_expectation), "0", ".");
for (size_t i = 0; i < std::max(resultHex.size(), expectedHex.size()); i += 0x40)
{
std::string result{i >= resultHex.size() ? string{} : resultHex.substr(i, 0x40)};
std::string expected{i > expectedHex.size() ? string{} : expectedHex.substr(i, 0x40)};
message +=
(result == expected ? " " : " X ") +
result +
std::string(0x41 - result.size(), ' ') +
expected +
"\n";
}
return make_pair(false, message);
}
bytes ExecutionFramework::panicData(util::PanicCode _code)
{
return
m_evmVersion.supportsReturndata() ?
toCompactBigEndian(selectorFromSignature32("Panic(uint256)"), 4) + encode(u256(static_cast<unsigned>(_code))) :
bytes();
}
u256 ExecutionFramework::gasLimit() const
{
return {m_evmcHost->tx_context.block_gas_limit};
}
u256 ExecutionFramework::gasPrice() const
{
// here and below we use "return u256{....}" instead of just "return {....}"
// to please MSVC and avoid unexpected
// warning C4927 : illegal conversion; more than one user - defined conversion has been implicitly applied
return u256{EVMHost::convertFromEVMC(m_evmcHost->tx_context.tx_gas_price)};
}
u256 ExecutionFramework::blockHash(u256 const& _number) const
{
return u256{EVMHost::convertFromEVMC(
m_evmcHost->get_block_hash(static_cast<int64_t>(_number & numeric_limits<uint64_t>::max()))
)};
}
u256 ExecutionFramework::blockNumber() const
{
return m_evmcHost->tx_context.block_number;
}
void ExecutionFramework::sendMessage(bytes const& _data, bool _isCreation, u256 const& _value)
{
m_evmcHost->newBlock();
if (m_showMessages)
{
if (_isCreation)
cout << "CREATE " << m_sender.hex() << ":" << endl;
else
cout << "CALL " << m_sender.hex() << " -> " << m_contractAddress.hex() << ":" << endl;
if (_value > 0)
cout << " value: " << _value << endl;
cout << " in: " << toHex(_data) << endl;
}
evmc_message message = {};
message.input_data = _data.data();
message.input_size = _data.size();
message.sender = EVMHost::convertToEVMC(m_sender);
message.value = EVMHost::convertToEVMC(_value);
if (_isCreation)
{
message.kind = EVMC_CREATE;
message.destination = EVMHost::convertToEVMC(h160{});
}
else
{
message.kind = EVMC_CALL;
message.destination = EVMHost::convertToEVMC(m_contractAddress);
}
message.gas = m_gas.convert_to<int64_t>();
evmc::result result = m_evmcHost->call(message);
m_output = bytes(result.output_data, result.output_data + result.output_size);
if (_isCreation)
m_contractAddress = EVMHost::convertFromEVMC(result.create_address);
m_gasUsed = m_gas - result.gas_left;
m_transactionSuccessful = (result.status_code == EVMC_SUCCESS);
if (m_showMessages)
{
cout << " out: " << toHex(m_output) << endl;
cout << " result: " << static_cast<size_t>(result.status_code) << endl;
cout << " gas used: " << m_gasUsed.str() << endl;
}
}
void ExecutionFramework::sendEther(h160 const& _addr, u256 const& _amount)
{
m_evmcHost->newBlock();
if (m_showMessages)
{
cout << "SEND_ETHER " << m_sender.hex() << " -> " << _addr.hex() << ":" << endl;
if (_amount > 0)
cout << " value: " << _amount << endl;
}
evmc_message message = {};
message.sender = EVMHost::convertToEVMC(m_sender);
message.value = EVMHost::convertToEVMC(_amount);
message.kind = EVMC_CALL;
message.destination = EVMHost::convertToEVMC(_addr);
message.gas = m_gas.convert_to<int64_t>();
m_evmcHost->call(message);
}
size_t ExecutionFramework::currentTimestamp()
{
return static_cast<size_t>(m_evmcHost->tx_context.block_timestamp);
}
size_t ExecutionFramework::blockTimestamp(u256 _block)
{
if (_block > blockNumber())
return 0;
else
return static_cast<size_t>((currentTimestamp() / blockNumber()) * _block);
}
h160 ExecutionFramework::account(size_t _idx)
{
return h160(h256(u256{"0x1212121212121212121212121212120000000012"} + _idx * 0x1000), h160::AlignRight);
}
bool ExecutionFramework::addressHasCode(h160 const& _addr) const
{
return m_evmcHost->get_code_size(EVMHost::convertToEVMC(_addr)) != 0;
}
size_t ExecutionFramework::numLogs() const
{
return m_evmcHost->recorded_logs.size();
}
size_t ExecutionFramework::numLogTopics(size_t _logIdx) const
{
return m_evmcHost->recorded_logs.at(_logIdx).topics.size();
}
h256 ExecutionFramework::logTopic(size_t _logIdx, size_t _topicIdx) const
{
return EVMHost::convertFromEVMC(m_evmcHost->recorded_logs.at(_logIdx).topics.at(_topicIdx));
}
h160 ExecutionFramework::logAddress(size_t _logIdx) const
{
return EVMHost::convertFromEVMC(m_evmcHost->recorded_logs.at(_logIdx).creator);
}
bytes ExecutionFramework::logData(size_t _logIdx) const
{
const auto& data = m_evmcHost->recorded_logs.at(_logIdx).data;
// TODO: Return a copy of log data, because this is expected from REQUIRE_LOG_DATA(),
// but reference type like string_view would be preferable.
return {data.begin(), data.end()};
}
u256 ExecutionFramework::balanceAt(h160 const& _addr) const
{
return u256(EVMHost::convertFromEVMC(m_evmcHost->get_balance(EVMHost::convertToEVMC(_addr))));
}
bool ExecutionFramework::storageEmpty(h160 const& _addr) const
{
const auto it = m_evmcHost->accounts.find(EVMHost::convertToEVMC(_addr));
if (it != m_evmcHost->accounts.end())
{
for (auto const& entry: it->second.storage)
if (!(entry.second.value == evmc::bytes32{}))
return false;
}
return true;
}