libstdc++-v3/testsuite/27_io/filesystem/operations/create_directory.cc

   1 // Copyright (C) 2016-2023 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++17 } }
  19 // { dg-require-filesystem-ts "" }
  20
  21 #include <filesystem>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_fs.h>
  24
  25 namespace fs = std::filesystem;
  26
  27 void
  28 test01()
  29 {
  30   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
  31   std::error_code ec;
  32
  33   // Test empty path.
  34   fs::path p;
  35   bool b = create_directory( p, ec );
  36   VERIFY( ec );
  37   VERIFY( !b );
  38
  39   // Test non-existent path
  40   p = __gnu_test::nonexistent_path();
  41   VERIFY( !exists(p) );
  42
  43   ec = bad_ec;
  44   b = create_directory(p, ec); // create the directory once
  45   VERIFY( !ec );
  46   VERIFY( b );
  47   VERIFY( exists(p) );
  48
  49   // Test existing path (libstdc++/71036).
  50   ec = bad_ec;
  51   b = create_directory(p, ec);
  52   VERIFY( !ec );
  53   VERIFY( !b );
  54   b = create_directory(p);
  55   VERIFY( !b );
  56
  57   auto f = p/"file";
  58   std::ofstream{f} << "create file";
  59   b = create_directory(f, ec);
  60   VERIFY( ec == std::errc::file_exists );
  61   VERIFY( !b );
  62   try
  63   {
  64     create_directory(f);
  65     VERIFY( false );
  66   }
  67   catch (const fs::filesystem_error& e)
  68   {
  69     VERIFY( e.code() == std::errc::file_exists );
  70     VERIFY( e.path1() == f );
  71   }
  72
  73 #ifndef NO_SYMLINKS
  74   // PR libstdc++/101510 create_directory on an existing symlink to a directory
  75   fs::create_directory(p/"dir");
  76   auto link = p/"link";
  77   fs::create_directory_symlink("dir", link);
  78   ec = bad_ec;
  79   b = fs::create_directory(link, ec);
  80   VERIFY( !b );
  81   VERIFY( !ec );
  82   b = fs::create_directory(link);
  83   VERIFY( !b );
  84 #endif
  85
  86   remove_all(p, ec);
  87 }
  88
  89 int
  90 main()
  91 {
  92   test01();
  93 }