1 /*
2 __ _____ _____ _____
3 __| | __| | | | JSON for Modern C++ (test suite)
4 | | |__ | | | | | | version 3.9.1
5 |_____|_____|_____|_|___| https://github.com/nlohmann/json
6
7 Licensed under the MIT License <http://opensource.org/licenses/MIT>.
8 SPDX-License-Identifier: MIT
9 Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
10
11 Permission is hereby granted, free of charge, to any person obtaining a copy
12 of this software and associated documentation files (the "Software"), to deal
13 in the Software without restriction, including without limitation the rights
14 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 copies of the Software, and to permit persons to whom the Software is
16 furnished to do so, subject to the following conditions:
17
18 The above copyright notice and this permission notice shall be included in all
19 copies or substantial portions of the Software.
20
21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 SOFTWARE.
28 */
29
30 #include "doctest_compatibility.h"
31
32 #include <nlohmann/json.hpp>
33
34 using nlohmann::json;
35
36 namespace
37 {
38 enum test
39 {
40 };
41
42 struct pod {};
43 struct pod_bis {};
44
45 void to_json(json&, pod) noexcept;
46 void to_json(json&, pod_bis);
47 void from_json(const json&, pod) noexcept;
48 void from_json(const json&, pod_bis);
to_json(json &,pod)49 void to_json(json&, pod) noexcept {}
to_json(json &,pod_bis)50 void to_json(json&, pod_bis) {}
from_json(const json &,pod)51 void from_json(const json&, pod) noexcept {}
from_json(const json &,pod_bis)52 void from_json(const json&, pod_bis) {}
53
54 static json* j = nullptr;
55
56 static_assert(noexcept(json{}), "");
57 static_assert(noexcept(nlohmann::to_json(*j, 2)), "");
58 static_assert(noexcept(nlohmann::to_json(*j, 2.5)), "");
59 static_assert(noexcept(nlohmann::to_json(*j, true)), "");
60 static_assert(noexcept(nlohmann::to_json(*j, test{})), "");
61 static_assert(noexcept(nlohmann::to_json(*j, pod{})), "");
62 static_assert(!noexcept(nlohmann::to_json(*j, pod_bis{})), "");
63 static_assert(noexcept(json(2)), "");
64 static_assert(noexcept(json(test{})), "");
65 static_assert(noexcept(json(pod{})), "");
66 static_assert(noexcept(j->get<pod>()), "");
67 static_assert(!noexcept(j->get<pod_bis>()), "");
68 static_assert(noexcept(json(pod{})), "");
69 }
70
71 TEST_CASE("runtime checks")
72 {
73 SECTION("nothrow-copy-constructible exceptions")
74 {
75 // for ERR60-CPP (https://github.com/nlohmann/json/issues/531):
76 // Exceptions should be nothrow-copy-constructible. However, compilers
77 // treat std::runtime_exception differently in this regard. Therefore,
78 // we can only demand nothrow-copy-constructibility for our exceptions
79 // if std::runtime_exception is.
80 CHECK(std::is_nothrow_copy_constructible<json::exception>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
81 CHECK(std::is_nothrow_copy_constructible<json::parse_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
82 CHECK(std::is_nothrow_copy_constructible<json::invalid_iterator>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
83 CHECK(std::is_nothrow_copy_constructible<json::type_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
84 CHECK(std::is_nothrow_copy_constructible<json::out_of_range>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
85 CHECK(std::is_nothrow_copy_constructible<json::other_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
86 }
87
88 SECTION("silence -Wunneeded-internal-declaration errors")
89 {
90 j = nullptr;
91 json j2;
92 to_json(j2, pod());
93 to_json(j2, pod_bis());
94 from_json(j2, pod());
95 from_json(j2, pod_bis());
96 }
97 }
98