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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: availability-filesystem-missing
// UNSUPPORTED: c++03, c++11, c++14
// <filesystem>
// class filesystem_error
// filesystem_error(const string& what_arg, error_code ec);
// filesystem_error(const string& what_arg, const path& p1, error_code ec);
// filesystem_error(const string& what_arg, const path& p1, const path& p2, error_code ec);
// const std::error_code& code() const;
// const char* what() const noexcept;
// const path& path1() const noexcept;
// const path& path2() const noexcept;
#include <filesystem>
#include <cassert>
#include <string>
#include <system_error>
#include <type_traits>
#include "test_macros.h"
namespace fs = std::filesystem;
void test_constructors() {
using namespace fs;
{
// The string returned by "filesystem_error::what() must contain runtime_error::what().c_str()
const std::string what_arg = "Hello World";
const std::string what_contains = std::runtime_error(what_arg).what();
assert(what_contains.find(what_arg) != std::string::npos);
auto CheckWhat = [what_contains](filesystem_error const& e) {
std::string s = e.what();
assert(s.find(what_contains.c_str()) != std::string::npos);
};
std::error_code ec = std::make_error_code(std::errc::file_exists);
const path p1("foo");
const path p2("bar");
// filesystem_error(const string& what_arg, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, ec));
filesystem_error e(what_arg, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1().empty() && e.path2().empty());
}
// filesystem_error(const string& what_arg, const path&, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, ec));
filesystem_error e(what_arg, p1, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1() == p1);
assert(e.path2().empty());
}
// filesystem_error(const string& what_arg, const path&, const path&, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, p2, ec));
filesystem_error e(what_arg, p1, p2, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1() == p1);
assert(e.path2() == p2);
}
}
{
// The string returned by "filesystem_error::what() must contain runtime_error::what().c_str()
const std::string what_arg("test LWG3112 with and With embedded \0 character");
const std::string what_contains = std::runtime_error(what_arg).what();
assert(what_contains.find(what_arg) != std::string::npos);
auto CheckWhat = [what_contains](filesystem_error const& e) {
std::string s = e.what();
assert(s.find(what_contains.c_str()) != std::string::npos);
};
std::error_code ec = std::make_error_code(std::errc::file_exists);
const path p1("foo");
const path p2("bar");
// filesystem_error(const string& what_arg, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, ec));
filesystem_error e(what_arg, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1().empty() && e.path2().empty());
}
// filesystem_error(const string& what_arg, const path&, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, ec));
filesystem_error e(what_arg, p1, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1() == p1);
assert(e.path2().empty());
}
// filesystem_error(const string& what_arg, const path&, const path&, error_code ec);
{
ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, p2, ec));
filesystem_error e(what_arg, p1, p2, ec);
CheckWhat(e);
assert(e.code() == ec);
assert(e.path1() == p1);
assert(e.path2() == p2);
}
}
}
void test_signatures() {
using namespace fs;
const path p;
std::error_code ec;
const filesystem_error e("lala", ec);
// const path& path1() const noexcept;
{
ASSERT_SAME_TYPE(path const&, decltype(e.path1()));
ASSERT_NOEXCEPT(e.path1());
}
// const path& path2() const noexcept
{
ASSERT_SAME_TYPE(path const&, decltype(e.path2()));
ASSERT_NOEXCEPT(e.path2());
}
// const char* what() const noexcept
{
ASSERT_SAME_TYPE(const char*, decltype(e.what()));
ASSERT_NOEXCEPT(e.what());
}
}
int main(int, char**) {
static_assert(std::is_base_of<std::system_error, fs::filesystem_error>::value, "");
test_constructors();
test_signatures();
return 0;
}
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