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76 lines
2.1 KiB
76 lines
2.1 KiB
10 years ago
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/*
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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 fuzzHelper.h
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* @author Dimitry Khokhlov <winsvega@mail.ru>
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* @date 2015
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*/
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#include <string>
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#include <boost/random.hpp>
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#include <boost/filesystem/path.hpp>
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#include <test/TestHelper.h>
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#include <libdevcore/CommonIO.h>
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#include <libdevcore/CommonData.h>
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#pragma once
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namespace dev
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{
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namespace test
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{
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typedef boost::random::uniform_int_distribution<> boostIntDistrib;
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typedef boost::random::variate_generator<boost::mt19937&, boostIntDistrib > boostIntGenerator;
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enum class CodeOptions
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{
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UseUndefinedOpCodes,
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DontUseUndefinedOpCodes
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};
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class RandomCode
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{
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public:
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/// Generate random vm code
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static std::string generate(int maxOpNumber = 1, CodeOptions options = CodeOptions::DontUseUndefinedOpCodes);
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/// Generate random byte string of a given length
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static std::string rndByteSequence(int length = 1);
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/// Generate random uniForm Int with reasonable value 0..0x7fffffff
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static std::string randomUniInt();
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private:
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static std::string fillArguments(int num);
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static void refreshSeed();
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static boost::random::mt19937 gen; ///< Random generator
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static boostIntDistrib opCodeDist; ///< 0..255 opcodes
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static boostIntDistrib opLengDist; ///< 1..32 byte string
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static boostIntDistrib uniIntDist; ///< 0..0x7fffffff
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static boostIntGenerator randUniIntGen; ///< Generate random UniformInt from
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static boostIntGenerator randOpCodeGen; ///< Generate random value from opCodeDist
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static boostIntGenerator randOpLengGen; ///< Generate random length from opLengDist
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};
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}
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}
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