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, c++20
10// UNSUPPORTED: no-threads
11
12// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
13
14// TODO FMT This test should not require std::to_chars(floating-point)
15// XFAIL: availability-fp_to_chars-missing
16
17// <thread>
18
19// template<class charT>
20// struct formatter<thread::id, charT>;
21
22// string vformat(string_view fmt, format_args args);
23// wstring vformat(wstring_view fmt, wformat_args args);
24
25#include <format>
26#include <cassert>
27
28#include "assert_macros.h"
29#include "concat_macros.h"
30#include "format.functions.tests.h"
31#include "test_macros.h"
32
33auto test = []<class CharT, class... Args>(
34 std::basic_string_view<CharT> expected, std::basic_string_view<CharT> fmt, Args&&... args) {
35 std::basic_string<CharT> out = std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...));
36 TEST_REQUIRE(out == expected,
37 TEST_WRITE_CONCATENATED(
38 "\nFormat string ", fmt, "\nExpected output ", expected, "\nActual output ", out, '\n'));
39};
40
41auto test_exception =
42 []<class CharT, class... Args>(
43 [[maybe_unused]] std::string_view what,
44 [[maybe_unused]] std::basic_string_view<CharT> fmt,
45 [[maybe_unused]] Args&&... args) {
46 TEST_VALIDATE_EXCEPTION(
47 std::format_error,
48 [&]([[maybe_unused]] const std::format_error& e) {
49 TEST_LIBCPP_REQUIRE(
50 e.what() == what,
51 TEST_WRITE_CONCATENATED(
52 "\nFormat string ", fmt, "\nExpected exception ", what, "\nActual exception ", e.what(), '\n'));
53 },
54 TEST_IGNORE_NODISCARD std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)));
55 };
56
57int main(int, char**) {
58 format_tests<char>(check: test, check_exception: test_exception);
59
60#ifndef TEST_HAS_NO_WIDE_CHARACTERS
61 format_tests<wchar_t>(check: test, check_exception: test_exception);
62#endif
63
64 return 0;
65}
66

source code of libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/format.functions.vformat.pass.cpp