| // Copyright (C) 2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-do run { target c++17 } } |
| // { dg-require-filesystem-ts "" } |
| |
| #include <filesystem> |
| #include <testsuite_hooks.h> |
| #include <testsuite_fs.h> |
| |
| namespace fs = std::filesystem; |
| |
| void |
| test01() |
| { |
| std::error_code ec; |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| |
| auto p1 = __gnu_test::nonexistent_path(); |
| auto p2 = __gnu_test::nonexistent_path(); |
| |
| fs::rename(p1, p2, ec); |
| VERIFY( ec ); |
| |
| ec.clear(); |
| fs::rename(p1, "", ec); |
| VERIFY( ec ); |
| |
| ec.clear(); |
| fs::rename("", p1, ec); |
| VERIFY( ec ); |
| |
| ec = bad_ec; |
| std::ofstream{p1}; // create file |
| fs::rename(p1, p1, ec); // no-op |
| VERIFY( !ec ); |
| VERIFY( is_regular_file(p1) ); |
| |
| ec.clear(); |
| rename(p2, p1, ec); |
| VERIFY( ec ); |
| VERIFY( ec.value() == ENOENT ); |
| VERIFY( is_regular_file(p1) ); |
| |
| ec = bad_ec; |
| fs::rename(p1, p2, ec); |
| VERIFY( !ec ); |
| VERIFY( !exists(p1) ); |
| VERIFY( is_regular_file(p2) ); |
| |
| ec = bad_ec; |
| std::ofstream{p1}; // create file |
| fs::rename(p1, p2, ec); |
| VERIFY( !ec ); |
| VERIFY( !exists(p1) ); |
| VERIFY( is_regular_file(p2) ); |
| |
| fs::remove(p2, ec); |
| } |
| |
| void |
| test_symlinks() |
| { |
| #if defined(__MINGW32__) || defined(__MINGW64__) |
| // No symlink support |
| #else |
| std::error_code ec; |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| |
| const auto dir = __gnu_test::nonexistent_path(); |
| fs::create_directory(dir); |
| |
| create_symlink(dir/"nonesuch", dir/"link"); // dangling symlink |
| ec = bad_ec; |
| fs::rename(dir/"link", dir/"newlink", ec); |
| VERIFY( !ec ); |
| VERIFY( !exists(symlink_status(dir/"link")) ); |
| VERIFY( is_symlink(dir/"newlink") ); |
| |
| __gnu_test::scoped_file f(dir/"file"); |
| create_symlink(dir/"file", dir/"link"); |
| ec = bad_ec; |
| fs::rename(dir/"link", dir/"newerlink", ec); |
| VERIFY( !ec ); |
| VERIFY( !exists(symlink_status(dir/"link")) ); |
| VERIFY( is_symlink(dir/"newerlink") ); |
| VERIFY( is_regular_file(dir/"file") ); |
| |
| fs::remove_all(dir, ec); |
| f.path.clear(); |
| #endif |
| } |
| |
| void |
| test_directories() |
| { |
| std::error_code ec; |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| |
| const auto dir = __gnu_test::nonexistent_path(); |
| fs::create_directory(dir); |
| __gnu_test::scoped_file f(dir/"file"); |
| fs::create_directory(dir/"subdir"); |
| |
| // Rename directory. |
| ec = bad_ec; |
| fs::rename(dir/"subdir", dir/"subdir2", ec); |
| VERIFY( !ec ); |
| VERIFY( is_directory(dir/"subdir2") ); |
| VERIFY( !exists(dir/"subdir") ); |
| |
| // Cannot rename a directory to a sub-directory of itself. |
| fs::rename(dir/"subdir2", dir/"subdir2/subsubdir", ec); |
| VERIFY( ec ); |
| VERIFY( is_directory(dir/"subdir2") ); |
| VERIFY( !exists(dir/"subdir2"/"subsubdir") ); |
| |
| // Cannot rename a file to the name of an existing directory. |
| ec.clear(); |
| fs::rename(dir/"file", dir/"subdir2", ec); |
| VERIFY( ec ); |
| VERIFY( is_directory(dir/"subdir2") ); |
| VERIFY( is_regular_file(dir/"file") ); |
| |
| // Cannot rename a directory to the name of an existing non-directory |
| ec.clear(); |
| fs::rename(dir/"subdir2", dir/"file", ec); |
| VERIFY( ec ); |
| VERIFY( is_regular_file(dir/"file") ); |
| VERIFY( is_directory(dir/"subdir2") ); |
| |
| // Cannot rename directory to the name of a non-empty directory. |
| ec.clear(); |
| __gnu_test::scoped_file f2(dir/"subdir2/file"); |
| fs::create_directory(dir/"subdir"); |
| fs::rename(dir/"subdir", dir/"subdir2", ec); |
| VERIFY( ec ); |
| VERIFY( is_directory(dir/"subdir") ); |
| VERIFY( is_directory(dir/"subdir2") ); |
| VERIFY( is_regular_file(dir/"subdir2/file") ); |
| |
| #if defined(__MINGW32__) || defined(__MINGW64__) |
| // Cannot rename a directory to an existing directory |
| #else |
| // Can rename a non-empty directory to the name of an empty directory. |
| ec = bad_ec; |
| fs::rename(dir/"subdir2", dir/"subdir", ec); |
| VERIFY( !ec ); |
| VERIFY( is_directory(dir/"subdir") ); |
| VERIFY( !exists(dir/"subdir2") ); |
| VERIFY( is_regular_file(dir/"subdir/file") ); |
| #endif |
| |
| f2.path.clear(); |
| f.path.clear(); |
| |
| fs::remove_all(dir, ec); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test_symlinks(); |
| test_directories(); |
| } |