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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
// <filesystem>
// class directory_entry
// explicit directory_entry(const path);
// directory_entry(const path&, error_code& ec);
#include <filesystem>
#include <type_traits>
#include <cassert>
#include "assert_macros.h"
#include "test_macros.h"
#include "filesystem_test_helper.h"
#include "test_convertible.h"
namespace fs = std::filesystem;
static void path_ctor() {
using namespace fs;
{
static_assert(std::is_constructible<directory_entry, const path&>::value,
"directory_entry must be constructible from path");
static_assert(
!std::is_nothrow_constructible<directory_entry, const path&>::value,
"directory_entry constructor should not be noexcept");
static_assert(!std::is_convertible<path const&, directory_entry>::value,
"directory_entry constructor should be explicit");
}
{
const path p("foo/bar/baz");
const directory_entry e(p);
assert(e.path() == p);
}
}
static void path_ec_ctor() {
static_test_env static_env;
using namespace fs;
{
static_assert(
std::is_constructible<directory_entry, const path&,
std::error_code&>::value,
"directory_entry must be constructible from path and error_code");
static_assert(!std::is_nothrow_constructible<directory_entry, const path&,
std::error_code&>::value,
"directory_entry constructor should not be noexcept");
static_assert(
test_convertible<directory_entry, const path&, std::error_code&>(),
"directory_entry constructor should not be explicit");
}
{
std::error_code ec = GetTestEC();
const directory_entry e(static_env.File, ec);
assert(e.path() == static_env.File);
assert(!ec);
}
{
const path p("foo/bar/baz");
std::error_code ec = GetTestEC();
const directory_entry e(p, ec);
assert(e.path() == p);
assert(ErrorIs(ec, std::errc::no_such_file_or_directory));
}
}
static void path_ctor_calls_refresh() {
using namespace fs;
scoped_test_env env;
const path dir = env.create_dir("dir");
const path file = env.create_file("dir/file", 42);
const path sym = env.create_symlink("dir/file", "sym");
{
directory_entry ent(file);
std::error_code ec = GetTestEC();
directory_entry ent_ec(file, ec);
assert(!ec);
LIBCPP_ONLY(remove(file));
assert(ent.exists());
assert(ent_ec.exists());
assert(ent.file_size() == 42);
assert(ent_ec.file_size() == 42);
}
env.create_file("dir/file", 101);
{
directory_entry ent(sym);
std::error_code ec = GetTestEC();
directory_entry ent_ec(sym, ec);
assert(!ec);
LIBCPP_ONLY(remove(file));
LIBCPP_ONLY(remove(sym));
assert(ent.is_symlink());
assert(ent_ec.is_symlink());
assert(ent.is_regular_file());
assert(ent_ec.is_regular_file());
assert(ent.file_size() == 101);
assert(ent_ec.file_size() == 101);
}
}
static void path_ctor_dne() {
using namespace fs;
static_test_env static_env;
{
std::error_code ec = GetTestEC();
directory_entry ent(static_env.DNE, ec);
assert(ErrorIs(ec, std::errc::no_such_file_or_directory));
assert(ent.path() == static_env.DNE);
}
// don't report dead symlinks as an error.
{
std::error_code ec = GetTestEC();
directory_entry ent(static_env.BadSymlink, ec);
assert(!ec);
assert(ent.path() == static_env.BadSymlink);
}
// DNE does not cause the constructor to throw
{
directory_entry ent(static_env.DNE);
assert(ent.path() == static_env.DNE);
directory_entry ent_two(static_env.BadSymlink);
assert(ent_two.path() == static_env.BadSymlink);
}
}
static void path_ctor_cannot_resolve() {
using namespace fs;
#ifdef _WIN32
// Windows doesn't support setting perms::none to trigger failures
// reading directories; test using a special inaccessible directory
// instead.
const path dir = GetWindowsInaccessibleDir();
if (dir.empty())
return;
const path file = dir / "file";
{
std::error_code ec = GetTestEC();
directory_entry ent(file, ec);
assert(ErrorIs(ec, std::errc::no_such_file_or_directory));
assert(ent.path() == file);
}
{
TEST_DOES_NOT_THROW(directory_entry(file));
}
#else
scoped_test_env env;
const path dir = env.create_dir("dir");
const path file = env.create_file("dir/file", 42);
const path file_out_of_dir = env.create_file("file1", 101);
const path sym_out_of_dir = env.create_symlink("dir/file", "sym");
const path sym_in_dir = env.create_symlink("dir/file1", "dir/sym2");
permissions(dir, perms::none);
{
std::error_code ec = GetTestEC();
directory_entry ent(file, ec);
assert(ErrorIs(ec, std::errc::permission_denied));
assert(ent.path() == file);
}
{
std::error_code ec = GetTestEC();
directory_entry ent(sym_in_dir, ec);
assert(ErrorIs(ec, std::errc::permission_denied));
assert(ent.path() == sym_in_dir);
}
{
std::error_code ec = GetTestEC();
directory_entry ent(sym_out_of_dir, ec);
assert(!ec);
assert(ent.path() == sym_out_of_dir);
}
{
TEST_DOES_NOT_THROW(directory_entry(file));
TEST_DOES_NOT_THROW(directory_entry(sym_in_dir));
TEST_DOES_NOT_THROW(directory_entry(sym_out_of_dir));
}
#endif
}
int main(int, char**) {
path_ctor();
path_ec_ctor();
path_ctor_calls_refresh();
path_ctor_dne();
path_ctor_cannot_resolve();
return 0;
}
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