1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: no-filesystem, no-localization, no-tzdb
11
12 // XFAIL: libcpp-has-no-experimental-tzdb
13 // XFAIL: availability-tzdb-missing
14
15 // <chrono>
16
17 // struct tzdb
18
19 // const time_zone* locate_zone(string_view tz_name) const;
20
21 #include <cassert>
22 #include <chrono>
23 #include <string_view>
24
25 #include "test_macros.h"
26 #include "assert_macros.h"
27 #include "concat_macros.h"
28
test_zone(std::string_view zone)29 static void test_zone(std::string_view zone) {
30 const std::chrono::time_zone* tz = std::chrono::get_tzdb().locate_zone(zone);
31 assert(tz);
32 assert(tz->name() == zone);
33 }
34
test_link(std::string_view link,std::string_view zone)35 static void test_link(std::string_view link, std::string_view zone) {
36 const std::chrono::time_zone* tz = std::chrono::get_tzdb().locate_zone(link);
37 assert(tz);
38 assert(tz->name() == zone);
39 }
40
test_exception(std::string_view zone)41 static void test_exception([[maybe_unused]] std::string_view zone) {
42 TEST_VALIDATE_EXCEPTION(
43 std::runtime_error,
44 [&]([[maybe_unused]] const std::runtime_error& e) {
45 [[maybe_unused]] std::string_view what{"tzdb: requested time zone not found"};
46 TEST_LIBCPP_REQUIRE(
47 e.what() == what,
48 TEST_WRITE_CONCATENATED("\nExpected exception ", what, "\nActual exception ", e.what(), '\n'));
49 },
50 TEST_IGNORE_NODISCARD std::chrono::get_tzdb().locate_zone(zone));
51 }
52
main(int,const char **)53 int main(int, const char**) {
54 const std::chrono::tzdb& db = std::chrono::get_tzdb();
55 for (const auto& zone : db.zones)
56 test_zone(zone.name());
57
58 for (const auto& link : db.links)
59 test_link(link.name(), link.target());
60
61 test_exception("This is not a time zone");
62
63 return 0;
64 }
65