1
2// Copyright (C) 2008-2018 Lorenzo Caminiti
3// Distributed under the Boost Software License, Version 1.0 (see accompanying
4// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
5// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
6
7// Test throw from free function .post().
8
9#include "../detail/oteststream.hpp"
10#include <boost/contract/function.hpp>
11#include <boost/contract/check.hpp>
12#include <boost/detail/lightweight_test.hpp>
13#include <sstream>
14
15boost::contract::test::detail::oteststream out;
16
17struct err {}; // Global decl so visible in MSVC10 lambdas.
18
19void f() {
20 boost::contract::check c = boost::contract::function()
21 .precondition(f: [] { out << "f::pre" << std::endl; })
22 .old(f: [] { out << "f::old" << std::endl; })
23 .postcondition(f: [] {
24 out << "f::post" << std::endl;
25 throw err(); // Test this throws.
26 })
27 .except(f: [] { out << "f::except" << std::endl; })
28 ;
29 out << "f::body" << std::endl;
30}
31
32int main() {
33 std::ostringstream ok;
34
35 boost::contract::set_postcondition_failure(
36 [] (boost::contract::from) { throw; });
37
38 try {
39 out.str(s: "");
40 f();
41 #ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
42 BOOST_TEST(false);
43 } catch(err const&) {
44 #endif
45 ok.str(s: ""); ok << "" // Suppress a warning.
46 #ifndef BOOST_CONTRACT_NO_PRECONDITIONS
47 << "f::pre" << std::endl
48 #endif
49 #ifndef BOOST_CONTRACT_NO_OLDS
50 << "f::old" << std::endl
51 #endif
52 << "f::body" << std::endl
53 #ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
54 << "f::post" << std::endl // Test this threw.
55 #endif
56 ;
57 BOOST_TEST(out.eq(ok.str()));
58 } catch(...) { BOOST_TEST(false); }
59
60 return boost::report_errors();
61}
62
63

source code of boost/libs/contract/test/function/throwing_post.cpp