summaryrefslogtreecommitdiffstats
path: root/src/boost/libs/contract/test/specify/pre.cpp
blob: 4c02acd2bf5bcca2c01bbd30446eedb94e2e7511 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
// 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 specifying pre, no old, post, or except (same if not free func).

#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;

void f() {
    boost::contract::check c = boost::contract::function()
        .precondition([] { out << "f::pre" << std::endl; })
    ;
    out << "f::body" << std::endl;
}

int main() {
    std::ostringstream ok;

    out.str("");
    f();
    ok.str(""); ok
        #ifndef BOOST_CONTRACT_NO_PRECONDITIONS
            << "f::pre" << std::endl
        #endif
        << "f::body" << std::endl
    ;
    BOOST_TEST(out.eq(ok.str()));

    return boost::report_errors();
}