boost/libs/leaf/test/capture_exception_state_test.cpp
2021-10-05 21:37:46 +02:00

93 lines
1.7 KiB
C++

// Copyright (c) 2018-2021 Emil Dotchevski and Reverge Studios, Inc.
// 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)
#include <boost/leaf/detail/config.hpp>
#ifdef BOOST_LEAF_NO_EXCEPTIONS
#include <iostream>
int main()
{
std::cout << "Unit test not applicable." << std::endl;
return 0;
}
#else
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/capture.hpp>
# include <boost/leaf/handle_errors.hpp>
# include <boost/leaf/exception.hpp>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
int count = 0;
template <int>
struct info
{
info() noexcept
{
++count;
}
info( info const & ) noexcept
{
++count;
}
~info() noexcept
{
--count;
}
};
int main()
{
auto error_handlers = std::make_tuple(
[]( info<1>, info<3> )
{
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(count, 0);
std::exception_ptr ep;
try
{
leaf::capture(
leaf::make_shared_context(error_handlers),
[]
{
throw leaf::exception(info<1>{}, info<3>{});
} );
BOOST_TEST(false);
}
catch(...)
{
ep = std::current_exception();
}
BOOST_TEST_EQ(count, 2);
int r = leaf::try_catch(
[&]() -> int
{
std::rethrow_exception(ep);
},
error_handlers );
BOOST_TEST_EQ(r, 1);
ep = std::exception_ptr();
BOOST_TEST_EQ(count, 0);
return boost::report_errors();
}
#endif