a0866c5fb5
This patch implements the <filesystem> header and uses that to provide <experimental/filesystem>. Unlike other standard headers, the symbols needed for <filesystem> have not yet been placed in libc++.so. Instead they live in the new libc++fs.a library. Users of filesystem are required to link this library. (Also note that libc++experimental no longer contains the definition of <experimental/filesystem>, which now requires linking libc++fs). The reason for keeping <filesystem> out of the dylib for now is that it's still somewhat experimental, and the possibility of requiring an ABI breaking change is very real. In the future the symbols will likely be moved into the dylib, or the dylib will be made to link libc++fs automagically). Note that moving the symbols out of libc++experimental may break user builds until they update to -lc++fs. This should be OK, because the experimental library provides no stability guarantees. However, I plan on looking into ways we can force libc++experimental to automagically link libc++fs. In order to use a single implementation and set of tests for <filesystem>, it has been placed in a special `__fs` namespace. This namespace is inline in C++17 onward, but not before that. As such implementation is available in C++11 onward, but no filesystem namespace is present "directly", and as such name conflicts shouldn't occur in C++11 or C++14. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@338093 91177308-0d34-0410-b5e6-96231b3b80d8
126 lines
3.7 KiB
C++
126 lines
3.7 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++98, c++03
|
|
|
|
// <filesystem>
|
|
|
|
// void rename(const path& old_p, const path& new_p);
|
|
// void rename(const path& old_p, const path& new_p, error_code& ec) noexcept;
|
|
|
|
#include "filesystem_include.hpp"
|
|
|
|
#include "test_macros.h"
|
|
#include "rapid-cxx-test.hpp"
|
|
#include "filesystem_test_helper.hpp"
|
|
|
|
using namespace fs;
|
|
|
|
TEST_SUITE(filesystem_rename_test_suite)
|
|
|
|
TEST_CASE(test_signatures)
|
|
{
|
|
const path p; ((void)p);
|
|
std::error_code ec; ((void)ec);
|
|
ASSERT_SAME_TYPE(decltype(fs::rename(p, p)), void);
|
|
ASSERT_SAME_TYPE(decltype(fs::rename(p, p, ec)), void);
|
|
|
|
ASSERT_NOT_NOEXCEPT(fs::rename(p, p));
|
|
ASSERT_NOEXCEPT(fs::rename(p, p, ec));
|
|
}
|
|
|
|
TEST_CASE(test_error_reporting)
|
|
{
|
|
auto checkThrow = [](path const& f, path const& t, const std::error_code& ec)
|
|
{
|
|
#ifndef TEST_HAS_NO_EXCEPTIONS
|
|
try {
|
|
fs::rename(f, t);
|
|
return false;
|
|
} catch (filesystem_error const& err) {
|
|
return err.path1() == f
|
|
&& err.path2() == t
|
|
&& err.code() == ec;
|
|
}
|
|
#else
|
|
((void)f); ((void)t); ((void)ec);
|
|
return true;
|
|
#endif
|
|
};
|
|
scoped_test_env env;
|
|
const path dne = env.make_env_path("dne");
|
|
const path file = env.create_file("file1", 42);
|
|
const path dir = env.create_dir("dir1");
|
|
struct TestCase {
|
|
path from;
|
|
path to;
|
|
} cases[] = {
|
|
{dne, dne},
|
|
{file, dir},
|
|
{dir, file}
|
|
};
|
|
for (auto& TC : cases) {
|
|
auto from_before = status(TC.from);
|
|
auto to_before = status(TC.to);
|
|
std::error_code ec;
|
|
rename(TC.from, TC.to, ec);
|
|
TEST_REQUIRE(ec);
|
|
TEST_CHECK(from_before.type() == status(TC.from).type());
|
|
TEST_CHECK(to_before.type() == status(TC.to).type());
|
|
TEST_CHECK(checkThrow(TC.from, TC.to, ec));
|
|
}
|
|
}
|
|
|
|
TEST_CASE(basic_rename_test)
|
|
{
|
|
scoped_test_env env;
|
|
|
|
const std::error_code set_ec = std::make_error_code(std::errc::address_in_use);
|
|
const path file = env.create_file("file1", 42);
|
|
{ // same file
|
|
std::error_code ec = set_ec;
|
|
rename(file, file, ec);
|
|
TEST_CHECK(!ec);
|
|
TEST_CHECK(is_regular_file(file));
|
|
TEST_CHECK(file_size(file) == 42);
|
|
}
|
|
const path sym = env.create_symlink(file, "sym");
|
|
{ // file -> symlink
|
|
std::error_code ec = set_ec;
|
|
rename(file, sym, ec);
|
|
TEST_CHECK(!ec);
|
|
TEST_CHECK(!exists(file));
|
|
TEST_CHECK(is_regular_file(symlink_status(sym)));
|
|
TEST_CHECK(file_size(sym) == 42);
|
|
}
|
|
const path file2 = env.create_file("file2", 42);
|
|
const path file3 = env.create_file("file3", 100);
|
|
{ // file -> file
|
|
std::error_code ec = set_ec;
|
|
rename(file2, file3, ec);
|
|
TEST_CHECK(!ec);
|
|
TEST_CHECK(!exists(file2));
|
|
TEST_CHECK(is_regular_file(file3));
|
|
TEST_CHECK(file_size(file3) == 42);
|
|
}
|
|
const path dne = env.make_env_path("dne");
|
|
const path bad_sym = env.create_symlink(dne, "bad_sym");
|
|
const path bad_sym_dest = env.make_env_path("bad_sym2");
|
|
{ // bad-symlink
|
|
std::error_code ec = set_ec;
|
|
rename(bad_sym, bad_sym_dest, ec);
|
|
TEST_CHECK(!ec);
|
|
TEST_CHECK(!exists(symlink_status(bad_sym)));
|
|
TEST_CHECK(is_symlink(bad_sym_dest));
|
|
TEST_CHECK(read_symlink(bad_sym_dest) == dne);
|
|
}
|
|
}
|
|
|
|
TEST_SUITE_END()
|