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/*
* Copyright Andrey Semashev 2022.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file util_manip_invoke.cpp
* \author Andrey Semashev
* \date 27.02.2022
*
* \brief This header contains tests for the invoke manipulator.
*/
#define BOOST_TEST_MODULE util_manip_invoke
#include <string>
#include <sstream>
#include <boost/config.hpp>
#include <boost/core/ref.hpp>
#include <boost/bind/bind.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/log/utility/manipulators/invoke.hpp>
#include "char_definitions.hpp"
namespace logging = boost::log;
struct my_function0
{
typedef void result_type;
template< typename StreamT >
result_type operator() (StreamT& stream) const
{
stream << "my_function0";
}
};
struct my_function1
{
typedef void result_type;
template< typename StreamT >
result_type operator() (StreamT& stream, int n) const
{
stream << "my_function1(" << n << ")";
}
};
template< typename StreamT >
void free_function(StreamT& stream, int n)
{
stream << "free_function(" << n << ")";
}
BOOST_AUTO_TEST_CASE_TEMPLATE(invoke_my_function0, CharT, char_types)
{
typedef CharT char_type;
typedef std::basic_ostringstream< char_type > ostream_type;
ostream_type strm_dump;
strm_dump << logging::invoke_manip(my_function0());
ostream_type strm_correct;
my_function0()(strm_correct);
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
}
BOOST_AUTO_TEST_CASE_TEMPLATE(invoke_boost_bind, CharT, char_types)
{
typedef CharT char_type;
typedef std::basic_ostringstream< char_type > ostream_type;
{
ostream_type strm_dump;
strm_dump << logging::invoke_manip(boost::bind(my_function1(), boost::placeholders::_1, 10));
ostream_type strm_correct;
boost::bind(my_function1(), boost::placeholders::_1, 10)(strm_correct);
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
}
{
ostream_type strm_dump;
strm_dump << logging::invoke_manip(boost::bind(&free_function< ostream_type >, boost::placeholders::_1, 10));
ostream_type strm_correct;
boost::bind(&free_function< ostream_type >, boost::placeholders::_1, 10)(strm_correct);
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
}
}
#if !defined(BOOST_NO_CXX11_LAMBDAS)
BOOST_AUTO_TEST_CASE_TEMPLATE(invoke_lambda, CharT, char_types)
{
typedef CharT char_type;
typedef std::basic_ostringstream< char_type > ostream_type;
ostream_type strm_dump;
strm_dump << logging::invoke_manip([](ostream_type& strm) { strm << "lambda"; });
ostream_type strm_correct;
strm_correct << "lambda";
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
}
#endif // !defined(BOOST_NO_CXX11_LAMBDAS)
// This list of config macros matches the similar list in boost/log/utility/manipulators/invoke.hpp
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
!defined(BOOST_NO_CXX14_GENERIC_LAMBDAS) && \
!defined(BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION)
BOOST_AUTO_TEST_CASE_TEMPLATE(invoke_lambda_args, CharT, char_types)
{
typedef CharT char_type;
typedef std::basic_ostringstream< char_type > ostream_type;
ostream_type strm_dump;
strm_dump << logging::invoke_manip([](ostream_type& strm, int x, int y) { strm << "lambda(" << x << ", " << y << ")"; }, 10, 20);
ostream_type strm_correct;
strm_correct << "lambda(" << 10 << ", " << 20 << ")";
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
}
BOOST_AUTO_TEST_CASE_TEMPLATE(invoke_lambda_args_ref, CharT, char_types)
{
typedef CharT char_type;
typedef std::basic_ostringstream< char_type > ostream_type;
int external_var = 30;
ostream_type strm_dump;
strm_dump << logging::invoke_manip([](ostream_type& strm, int x, int y, int& z)
{
strm << "lambda(" << x << ", " << y << ", " << z << ")";
++z;
}, 10, 20, boost::ref(external_var));
ostream_type strm_correct;
strm_correct << "lambda(" << 10 << ", " << 20 << ", " << 30 << ")";
BOOST_CHECK(equal_strings(strm_dump.str(), strm_correct.str()));
BOOST_CHECK_EQUAL(external_var, 31);
}
#endif // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) ...
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