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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
// Copyright 2018-2024 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/config.hpp>
#if !BOOST_LEAF_CFG_STD_SYSTEM_ERROR
#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/handle_errors.hpp>
# include <boost/leaf/pred.hpp>
#endif
#include "_test_res.hpp"
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
template <int> struct info { int value; };
template <class ResType>
ResType f( bool succeed )
{
if( succeed )
return 42;
else
return make_error_code(errc_a::a0);
}
template <class ResType>
ResType g( bool succeed )
{
if( auto r = f<ResType>(succeed) )
return r;
else
return leaf::error_id(r.error()).load(info<42>{42});
}
template <class ResType>
void test()
{
{
ResType r = leaf::try_handle_some(
[]
{
return g<ResType>(true);
} );
BOOST_TEST(r);
BOOST_TEST_EQ(r.value(), 42);
}
{
int called = 0;
ResType r = leaf::try_handle_some(
[&]
{
auto r1 = g<ResType>(false);
BOOST_TEST(!r1);
auto ec = r1.error();
BOOST_TEST_EQ(ec.message(), "LEAF error");
BOOST_TEST(!std::strcmp(ec.category().name(),"LEAF error"));
return r1;
},
[&]( info<42> const & x, leaf::match<leaf::condition<cond_x>, cond_x::x00> ec )
{
called = 1;
BOOST_TEST_EQ(x.value, 42);
return ec.matched;
} );
BOOST_TEST(!r);
BOOST_TEST_EQ(r.error(), make_error_code(errc_a::a0));
BOOST_TEST(called);
}
}
int main()
{
test<test_res<int, std::error_code>>();
test<test_res<int const, std::error_code>>();
test<test_res<int, std::error_code> const>();
test<test_res<int const, std::error_code> const>();
return boost::report_errors();
}
#endif
|
