120 lines
2.6 KiB
C++
120 lines
2.6 KiB
C++
// Copyright 2018-2022 Emil Dotchevski and Reverge Studios, Inc.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#if __cplusplus < 201703L
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#include <iostream>
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int main()
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{
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std::cout << "Unit test not applicable." << std::endl;
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return 0;
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}
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#else
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#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
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# include "leaf.hpp"
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#else
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# include <boost/leaf/handle_errors.hpp>
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# include <boost/leaf/pred.hpp>
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# include <boost/leaf/result.hpp>
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#endif
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#include "_test_ec.hpp"
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#include "lightweight_test.hpp"
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#include <exception>
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namespace leaf = boost::leaf;
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enum class my_error { e1=1, e2, e3 };
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struct e_my_error { my_error value; };
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#if BOOST_LEAF_CFG_STD_SYSTEM_ERROR
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struct e_error_code { std::error_code value; };
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#endif
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struct my_exception: std::exception
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{
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int value;
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};
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template <class M, class E>
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bool test(E const & e )
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{
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if( M::evaluate(e) )
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{
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M m{e};
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BOOST_TEST_EQ(&e, &m.matched);
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return true;
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}
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else
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return false;
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}
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int main()
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{
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{
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e_my_error e = { my_error::e1 };
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BOOST_TEST(( test<leaf::match_member<&e_my_error::value, my_error::e1>>(e) ));
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BOOST_TEST(( !test<leaf::match_member<&e_my_error::value, my_error::e2>>(e) ));
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BOOST_TEST(( test<leaf::match_member<&e_my_error::value, my_error::e2, my_error::e1>>(e) ));
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}
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#if BOOST_LEAF_CFG_STD_SYSTEM_ERROR
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{
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e_error_code e = { errc_a::a0 };
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BOOST_TEST(( test<leaf::match_member<&e_error_code::value, errc_a::a0>>(e) ));
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BOOST_TEST(( !test<leaf::match_member<&e_error_code::value, errc_a::a2>>(e) ));
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BOOST_TEST(( test<leaf::match_member<&e_error_code::value, errc_a::a2, errc_a::a0>>(e) ));
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}
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#endif
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{
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int r = leaf::try_handle_all(
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[]() -> leaf::result<int>
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{
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return leaf::new_error(e_my_error{my_error::e1});
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},
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[]( leaf::match_member<&e_my_error::value, my_error::e1> )
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{
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return 1;
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},
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[]
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{
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return 2;
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} );
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BOOST_TEST_EQ(r, 1);
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}
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{
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int r = leaf::try_handle_all(
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[]() -> leaf::result<int>
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{
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return leaf::new_error(e_my_error{my_error::e1});
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},
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[]( leaf::match_member<&e_my_error::value, my_error::e2> )
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{
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return 1;
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},
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[]
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{
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return 2;
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} );
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BOOST_TEST_EQ(r, 2);
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}
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return boost::report_errors();
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}
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#endif
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