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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
//
//===----------------------------------------------------------------------===//
// REQUIRES: can-create-symlinks
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: no-filesystem
// UNSUPPORTED: availability-filesystem-missing
// <filesystem>
// void create_symlink(const path& existing_symlink, const path& new_symlink);
// void create_symlink(const path& existing_symlink, const path& new_symlink,
// error_code& ec) noexcept;
#include <filesystem>
#include <cassert>
#include "test_macros.h"
#include "filesystem_test_helper.h"
namespace fs = std::filesystem;
using namespace fs;
static void test_signatures()
{
const path p; ((void)p);
std::error_code ec; ((void)ec);
ASSERT_NOT_NOEXCEPT(fs::create_symlink(p, p));
ASSERT_NOEXCEPT(fs::create_symlink(p, p, ec));
}
static void test_error_reporting()
{
scoped_test_env env;
const path file = env.create_file("file1", 42);
const path file2 = env.create_file("file2", 55);
const path sym = env.create_symlink(file, "sym");
{ // destination exists
std::error_code ec;
fs::create_symlink(sym, file2, ec);
assert(ec);
}
}
static void create_symlink_basic()
{
scoped_test_env env;
const path file = env.create_file("file", 42);
const path file_sym = env.create_symlink(file, "file_sym");
const path dir = env.create_dir("dir");
const path dir_sym = env.create_directory_symlink(dir, "dir_sym");
{
const path dest = env.make_env_path("dest1");
std::error_code ec;
fs::create_symlink(file_sym, dest, ec);
assert(!ec);
assert(is_symlink(dest));
assert(equivalent(dest, file));
}
{
const path dest = env.make_env_path("dest2");
std::error_code ec;
fs::create_directory_symlink(dir_sym, dest, ec);
assert(!ec);
assert(is_symlink(dest));
assert(equivalent(dest, dir));
}
}
static void create_symlink_dest_cleanup()
{
scoped_test_env env;
const path dir = env.create_dir("dir");
const path file = env.create_file("file", 42);
const path sym = dir / "link";
// The target path has to be normalized to backslashes before creating
// the link on windows, otherwise the link isn't dereferencable.
const path sym_target = "../file";
path sym_target_normalized = sym_target;
sym_target_normalized.make_preferred();
std::error_code ec;
fs::create_symlink(sym_target, sym, ec);
assert(!ec);
assert(equivalent(sym, file, ec));
const path ret = fs::read_symlink(sym, ec);
assert(!ec);
assert(ret.native() == sym_target_normalized.native());
}
int main(int, char**) {
test_signatures();
test_error_reporting();
create_symlink_basic();
create_symlink_dest_cleanup();
return 0;
}
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