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

132 lines
3.2 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/result.hpp>
# include <boost/leaf/handle_errors.hpp>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
template <int> struct my_exception: std::exception { };
int main()
{
{
int r = leaf::try_handle_all(
[]
{
return leaf::exception_to_result<my_exception<1>,my_exception<2>>(
[]() -> int
{
throw my_exception<1>();
} );
},
[]( my_exception<1> const &, std::exception_ptr const & ep )
{
try
{
std::rethrow_exception(ep);
}
catch( my_exception<1> const & )
{
}
return 1;
},
[]( my_exception<2> const & )
{
return 2;
},
[]
{
return 3;
} );
BOOST_TEST_EQ(r, 1);
}
{
int r = leaf::try_handle_all(
[]
{
return leaf::exception_to_result<my_exception<1>,my_exception<2>>(
[]() -> int
{
throw my_exception<2>();
} );
},
[]( my_exception<1> const & )
{
return 1;
},
[]( my_exception<2> const &, std::exception_ptr const & ep )
{
try
{
std::rethrow_exception(ep);
}
catch( my_exception<2> const & )
{
}
return 2;
},
[]
{
return 3;
} );
BOOST_TEST_EQ(r, 2);
}
{
int r = leaf::try_handle_all(
[]
{
return leaf::exception_to_result<std::exception,my_exception<1>>(
[]() -> int
{
throw my_exception<1>();
} );
},
[]( std::exception const &, std::exception_ptr const & ep )
{
try
{
std::rethrow_exception(ep);
}
catch( my_exception<1> const & )
{
}
return 1;
},
[]( my_exception<1> const & )
{
return 2;
},
[]
{
return 3;
} );
BOOST_TEST_EQ(r, 1);
}
return boost::report_errors();
}
#endif