contract/test/function/throwing_post.cpp
2017-12-10 16:31:15 -08:00

63 lines
1.9 KiB
C++

// Copyright (C) 2008-2018 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0 (see accompanying
// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
// Test throw from free function .post().
#include "../detail/oteststream.hpp"
#include <boost/contract/function.hpp>
#include <boost/contract/check.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <sstream>
boost::contract::test::detail::oteststream out;
struct err {}; // Global decl so visible in MSVC10 lambdas.
void f() {
boost::contract::check c = boost::contract::function()
.precondition([] { out << "f::pre" << std::endl; })
.old([] { out << "f::old" << std::endl; })
.postcondition([] {
out << "f::post" << std::endl;
throw err(); // Test this throws.
})
.except([] { out << "f::except" << std::endl; })
;
out << "f::body" << std::endl;
}
int main() {
std::ostringstream ok;
boost::contract::set_postcondition_failure(
[] (boost::contract::from) { throw; });
try {
out.str("");
f();
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
BOOST_TEST(false);
} catch(err const&) {
#endif
ok.str(""); ok << "" // Suppress a warning.
#ifndef BOOST_CONTRACT_NO_PRECONDITIONS
<< "f::pre" << std::endl
#endif
#ifndef BOOST_CONTRACT_NO_OLDS
<< "f::old" << std::endl
#endif
<< "f::body" << std::endl
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
<< "f::post" << std::endl // Test this threw.
#endif
;
BOOST_TEST(out.eq(ok.str()));
} catch(...) { BOOST_TEST(false); }
return boost::report_errors();
}