xref: /third_party/json/tests/src/unit-wstring.cpp (revision c5f01b2f) 
1//     __ _____ _____ _____
2//  __|  |   __|     |   | |  JSON for Modern C++ (supporting code)
3// |  |  |__   |  |  | | | |  version 3.11.2
4// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
5//
6// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
7// SPDX-License-Identifier: MIT
8
9#include "doctest_compatibility.h"
10
11#include <nlohmann/json.hpp>
12using nlohmann::json;
13
14// ICPC errors out on multibyte character sequences in source files
15#ifndef __INTEL_COMPILER
16namespace
17{
18bool wstring_is_utf16();
19bool wstring_is_utf16()
20{
21    return (std::wstring(L"�") == std::wstring(L"\U0001F4A9"));
22}
23
24bool u16string_is_utf16();
25bool u16string_is_utf16()
26{
27    return (std::u16string(u"�") == std::u16string(u"\U0001F4A9"));
28}
29
30bool u32string_is_utf32();
31bool u32string_is_utf32()
32{
33    return (std::u32string(U"�") == std::u32string(U"\U0001F4A9"));
34}
35} // namespace
36
37TEST_CASE("wide strings")
38{
39    SECTION("std::wstring")
40    {
41        if (wstring_is_utf16())
42        {
43            std::wstring w = L"[12.2,\"Ⴥaäö��\"]";
44            json j = json::parse(w);
45            CHECK(j.dump() == "[12.2,\"Ⴥaäö��\"]");
46        }
47    }
48
49    SECTION("invalid std::wstring")
50    {
51        if (wstring_is_utf16())
52        {
53            std::wstring w = L"\"\xDBFF";
54            json _;
55            CHECK_THROWS_AS(_ = json::parse(w), json::parse_error&);
56        }
57    }
58
59    SECTION("std::u16string")
60    {
61        if (u16string_is_utf16())
62        {
63            std::u16string w = u"[12.2,\"Ⴥaäö��\"]";
64            json j = json::parse(w);
65            CHECK(j.dump() == "[12.2,\"Ⴥaäö��\"]");
66        }
67    }
68
69    SECTION("invalid std::u16string")
70    {
71        if (wstring_is_utf16())
72        {
73            std::u16string w = u"\"\xDBFF";
74            json _;
75            CHECK_THROWS_AS(_ = json::parse(w), json::parse_error&);
76        }
77    }
78
79    SECTION("std::u32string")
80    {
81        if (u32string_is_utf32())
82        {
83            std::u32string w = U"[12.2,\"Ⴥaäö��\"]";
84            json j = json::parse(w);
85            CHECK(j.dump() == "[12.2,\"Ⴥaäö��\"]");
86        }
87    }
88
89    SECTION("invalid std::u32string")
90    {
91        if (u32string_is_utf32())
92        {
93            std::u32string w = U"\"\x110000";
94            json _;
95            CHECK_THROWS_AS(_ = json::parse(w), json::parse_error&);
96        }
97    }
98}
99#endif
100