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 using nlohmann::json;
34
35 #include <list>
36
37 namespace
38 {
39 TEST_CASE("Use arbitrary stdlib container")
40 {
41 std::string raw_data = "[1,2,3,4]";
42 std::list<char> data(raw_data.begin(), raw_data.end());
43
44 json as_json = json::parse(data.begin(), data.end());
45 CHECK(as_json.at(0) == 1);
46 CHECK(as_json.at(1) == 2);
47 CHECK(as_json.at(2) == 3);
48 CHECK(as_json.at(3) == 4);
49 }
50
51 struct MyContainer
52 {
53 const char* data;
54 };
55
begin(const MyContainer & c)56 const char* begin(const MyContainer& c)
57 {
58 return c.data;
59 }
60
end(const MyContainer & c)61 const char* end(const MyContainer& c)
62 {
63 return c.data + strlen(c.data);
64 }
65
66 TEST_CASE("Custom container")
67 {
68
69 MyContainer data{"[1,2,3,4]"};
70 json as_json = json::parse(data);
71 CHECK(as_json.at(0) == 1);
72 CHECK(as_json.at(1) == 2);
73 CHECK(as_json.at(2) == 3);
74 CHECK(as_json.at(3) == 4);
75
76 }
77
78 TEST_CASE("Custom iterator")
79 {
80 const char* raw_data = "[1,2,3,4]";
81
82 struct MyIterator
83 {
84 using difference_type = std::size_t;
85 using value_type = char;
86 using pointer = const char*;
87 using reference = const char&;
88 using iterator_category = std::input_iterator_tag;
89
operator ++__anon647d0ce20111::MyIterator90 MyIterator& operator++()
91 {
92 ++ptr;
93 return *this;
94 }
95
operator *__anon647d0ce20111::MyIterator96 reference operator*() const
97 {
98 return *ptr;
99 }
100
operator !=__anon647d0ce20111::MyIterator101 bool operator!=(const MyIterator& rhs) const
102 {
103 return ptr != rhs.ptr;
104 }
105
106 const char* ptr;
107 };
108
109 MyIterator begin{raw_data};
110 MyIterator end{raw_data + strlen(raw_data)};
111
112 json as_json = json::parse(begin, end);
113 CHECK(as_json.at(0) == 1);
114 CHECK(as_json.at(1) == 2);
115 CHECK(as_json.at(2) == 3);
116 CHECK(as_json.at(3) == 4);
117 }
118
119 } // namespace
120