test/TestHelper.h


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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 TestHelper.h
 * @author Marko Simovic <markobarko@gmail.com>
 * @date 2014
 */

#pragma once

#include <functional>
#include <boost/test/unit_test.hpp>
#include <boost/filesystem.hpp>
#include <boost/version.hpp>

namespace dev
{
namespace test
{

#if (BOOST_VERSION >= 105900)
#define ETH_BOOST_CHECK_IMPL(_message, _requireOrCheck) BOOST_TEST_TOOL_DIRECT_IMPL( \
        false,                                                          \
        _requireOrCheck,                                                \
        _message                                                        \
    )
#else
#define ETH_BOOST_CHECK_IMPL(_message, _requireOrCheck) BOOST_CHECK_IMPL( \
        false,                                                          \
        _message,                                                       \
        _requireOrCheck,                                                \
        CHECK_MSG                                                       \
    )
#endif

/// Make sure that no Exception is thrown during testing. If one is thrown show its info and fail the test.
/// Our version of BOOST_REQUIRE_NO_THROW()
/// @param _statement     The statement for which to make sure no exceptions are thrown
/// @param _message       A message to act as a prefix to the expression's error information
#define ETH_TEST_REQUIRE_NO_THROW(_statement, _message)             \
    do                                                                  \
    {                                                                   \
        try                                                         \
        {                                                               \
            BOOST_TEST_PASSPOINT();                                     \
            _statement;                                             \
        }                                                               \
        catch (boost::exception const& _e)                              \
        {                                                               \
            auto msg = std::string(_message " due to an exception thrown by " \
                BOOST_STRINGIZE(_statement) "\n") + boost::diagnostic_information(_e); \
            ETH_BOOST_CHECK_IMPL(msg, REQUIRE);                         \
        }                                                               \
        catch (...)                                                     \
        {                                                               \
            ETH_BOOST_CHECK_IMPL(                                       \
                "Unknown exception thrown by " BOOST_STRINGIZE(_statement), \
                REQUIRE                                                 \
            );                                                          \
        }                                                               \
    }                                                                   \
    while (0)

/// Check if an Exception is thrown during testing. If one is thrown show its info and continue the test
/// Our version of BOOST_CHECK_NO_THROW()
/// @param _statement    The statement for which to make sure no exceptions are thrown
/// @param _message       A message to act as a prefix to the expression's error information
#define ETH_TEST_CHECK_NO_THROW(_statement, _message)                   \
    do                                                                  \
    {                                                                   \
        try                                                         \
        {                                                               \
            BOOST_TEST_PASSPOINT();                                     \
            _statement;                                             \
        }                                                               \
        catch (boost::exception const& _e)                              \
        {                                                               \
            auto msg = std::string(_message " due to an exception thrown by " \
                BOOST_STRINGIZE(_statement) "\n") + boost::diagnostic_information(_e); \
            ETH_BOOST_CHECK_IMPL(msg, CHECK);                           \
        }                                                               \
        catch (...)                                                     \
        {                                                               \
            ETH_BOOST_CHECK_IMPL(                                       \
                "Unknown exception thrown by " BOOST_STRINGIZE(_statement), \
                CHECK                                                   \
            );                                                          \
        }                                                               \
    }                                                                   \
    while (0)


    class Options
    {
    public:
        std::string ipcPath;
        int tArgc;
        char **tArgv;
        /// Get reference to options
        /// The first time used, options are parsed with argc, argv
        static Options const& get(int argc = 0, char** argv = 0);

    private:
        Options(int argc, char** argv = 0);
        Options(Options const&) = delete;
    };
}
}