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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: no-filesystem, no-localization, no-tzdb
// XFAIL: libcpp-has-no-incomplete-tzdb
// XFAIL: availability-tzdb-missing
// <chrono>
// struct tzdb
// const time_zone* locate_zone(string_view tz_name) const;
#include <cassert>
#include <chrono>
#include <fstream>
#include <string_view>
#include "test_macros.h"
#include "assert_macros.h"
#include "concat_macros.h"
#include "filesystem_test_helper.h"
#include "test_tzdb.h"
scoped_test_env env;
[[maybe_unused]] const std::filesystem::path dir = env.create_dir("zoneinfo");
const std::filesystem::path file = env.create_file("zoneinfo/tzdata.zi");
std::string_view std::chrono::__libcpp_tzdb_directory() {
static std::string result = dir.string();
return result;
}
void write(std::string_view input) {
static int version = 0;
std::ofstream f{file};
f << "# version " << version++ << '\n';
f.write(input.data(), input.size());
}
static const std::chrono::tzdb& parse(std::string_view input) {
write(input);
return std::chrono::reload_tzdb();
}
int main(int, const char**) {
const std::chrono::tzdb& tzdb = parse(
R"(
Z zone 0 r f
L zone link
L link link_to_link
)");
{
const std::chrono::time_zone* tz = tzdb.locate_zone("zone");
assert(tz);
assert(tz->name() == "zone");
}
{
const std::chrono::time_zone* tz = tzdb.locate_zone("link");
assert(tz);
assert(tz->name() == "zone");
}
TEST_VALIDATE_EXCEPTION(
std::runtime_error,
[&]([[maybe_unused]] const std::runtime_error& e) {
std::string_view what{"tzdb: requested time zone not found"};
TEST_LIBCPP_REQUIRE(
e.what() == what,
TEST_WRITE_CONCATENATED("\nExpected exception ", what, "\nActual exception ", e.what(), '\n'));
},
TEST_IGNORE_NODISCARD tzdb.locate_zone("link_to_link"));
return 0;
}
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