| // Copyright (C) 2015-2021 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() |
| { |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| std::error_code ec; |
| |
| // Test non-existent path. |
| const auto p = __gnu_test::nonexistent_path(); |
| fs::recursive_directory_iterator iter(p, ec); |
| VERIFY( ec ); |
| VERIFY( iter == end(iter) ); |
| |
| // Test empty directory. |
| ec = bad_ec; |
| create_directory(p, fs::current_path(), ec); |
| VERIFY( !ec ); |
| ec = bad_ec; |
| iter = fs::recursive_directory_iterator(p, ec); |
| VERIFY( !ec ); |
| VERIFY( iter == end(iter) ); |
| |
| // Test non-empty directory. |
| ec = bad_ec; |
| create_directories(p / "d1/d2", ec); |
| VERIFY( !ec ); |
| ec = bad_ec; |
| iter = fs::recursive_directory_iterator(p, ec); |
| VERIFY( !ec ); |
| VERIFY( iter != end(iter) ); |
| VERIFY( iter->path() == p/"d1" ); |
| ++iter; |
| VERIFY( iter->path() == p/"d1/d2" ); |
| ++iter; |
| VERIFY( iter == end(iter) ); |
| |
| if (__gnu_test::permissions_are_testable()) |
| { |
| // Test inaccessible directory. |
| ec = bad_ec; |
| permissions(p, fs::perms::none, ec); |
| VERIFY( !ec ); |
| iter = fs::recursive_directory_iterator(p, ec); |
| VERIFY( ec ); |
| VERIFY( iter == end(iter) ); |
| |
| // Test inaccessible directory, skipping permission denied. |
| const auto opts = fs::directory_options::skip_permission_denied; |
| iter = fs::recursive_directory_iterator(p, opts, ec); |
| VERIFY( !ec ); |
| VERIFY( iter == end(iter) ); |
| |
| // Test inaccessible sub-directory. |
| ec = bad_ec; |
| permissions(p, fs::perms::owner_all, ec); |
| VERIFY( !ec ); |
| ec = bad_ec; |
| permissions(p/"d1/d2", fs::perms::none, ec); |
| VERIFY( !ec ); |
| ec = bad_ec; |
| iter = fs::recursive_directory_iterator(p, ec); |
| VERIFY( !ec ); |
| VERIFY( iter != end(iter) ); |
| VERIFY( iter->path() == p/"d1" ); |
| ++iter; // should recurse into d1 |
| VERIFY( iter != end(iter) ); |
| VERIFY( iter->path() == p/"d1/d2" ); |
| iter.increment(ec); // should fail to recurse into p/d1/d2 |
| VERIFY( ec ); |
| VERIFY( iter == end(iter) ); |
| |
| // Test inaccessible sub-directory, skipping permission denied. |
| ec = bad_ec; |
| iter = fs::recursive_directory_iterator(p, opts, ec); |
| VERIFY( !ec ); |
| VERIFY( iter != end(iter) ); |
| VERIFY( iter->path() == p/"d1" ); |
| ++iter; // should recurse into d1 |
| VERIFY( iter != end(iter) ); |
| VERIFY( iter->path() == p/"d1/d2" ); |
| ec = bad_ec; |
| iter.increment(ec); // should fail to recurse into p/d1/d2, so skip it |
| VERIFY( !ec ); |
| VERIFY( iter == end(iter) ); |
| } |
| |
| permissions(p/"d1/d2", fs::perms::owner_all, ec); |
| remove_all(p, ec); |
| } |
| |
| void |
| test02() |
| { |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| std::error_code ec; |
| const auto p = __gnu_test::nonexistent_path(); |
| ec = bad_ec; |
| create_directories(p / "d1/d2", ec); |
| VERIFY( !ec ); |
| |
| // Test post-increment (libstdc++/71005) |
| ec = bad_ec; |
| auto iter = fs::recursive_directory_iterator(p, ec); |
| VERIFY( !ec ); |
| VERIFY( iter != end(iter) ); |
| const auto entry1 = *iter; |
| const auto entry2 = *iter++; |
| VERIFY( entry1 == entry2 ); |
| VERIFY( entry1.path() == p/"d1" ); |
| const auto entry3 = *iter; |
| const auto entry4 = *iter++; |
| VERIFY( entry3 == entry4 ); |
| VERIFY( entry3.path() == p/"d1/d2" ); |
| VERIFY( iter == end(iter) ); |
| |
| remove_all(p, ec); |
| } |
| |
| void |
| test03() |
| { |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| std::error_code ec; |
| const auto p = __gnu_test::nonexistent_path(); |
| ec = bad_ec; |
| create_directories(p / "longer_than_small_string_buffer", ec); |
| VERIFY( !ec ); |
| |
| // Test for no reallocation on each dereference (this is a GNU extension) |
| auto iter = fs::recursive_directory_iterator(p, ec); |
| const auto* s1 = iter->path().c_str(); |
| const auto* s2 = iter->path().c_str(); |
| VERIFY( s1 == s2 ); |
| |
| remove_all(p, ec); |
| } |
| |
| void |
| test04() |
| { |
| // libstdc++/71004 |
| const fs::recursive_directory_iterator it; |
| VERIFY( it == end(it) ); |
| } |
| |
| void |
| test05() |
| { |
| auto p = __gnu_test::nonexistent_path(); |
| create_directory(p); |
| create_directory(p / "x"); |
| fs::recursive_directory_iterator it(p), endit; |
| VERIFY( begin(it) == it ); |
| static_assert( noexcept(begin(it)), "begin is noexcept" ); |
| VERIFY( end(it) == endit ); |
| static_assert( noexcept(end(it)), "end is noexcept" ); |
| |
| std::error_code ec; |
| remove_all(p, ec); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| test04(); |
| test05(); |
| } |