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

   1 // Copyright (C) 2017-2023 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 // { dg-require-target-fs-space "" }
  21
  22 // 30.10.14.3 Permissions [fs.op.space]
  23
  24 #include <filesystem>
  25 #include <testsuite_fs.h>
  26 #include <testsuite_hooks.h>
  27
  28 bool check(std::filesystem::space_info const& s)
  29 {
  30   const std::uintmax_t err = -1;
  31   return s.capacity != err || s.free != err || s.available != err;
  32 }
  33
  34 void
  35 test01()
  36 {
  37   const std::filesystem::path root = __gnu_test::root_path();
  38   std::filesystem::space_info s = std::filesystem::space(root);
  39   std::error_code ec = make_error_code(std::errc::invalid_argument);
  40   s = std::filesystem::space(root, ec);
  41   VERIFY( !ec );
  42   VERIFY( check(s) );
  43   VERIFY( s.capacity >= s.free );
  44
  45   s = std::filesystem::space(__gnu_test::nonexistent_path()/".", ec);
  46   if (ec)
  47     VERIFY( ! check(s) );
  48   else
  49     VERIFY( check(s) );
  50 }
  51
  52 void
  53 test02()
  54 {
  55   std::filesystem::space_info s = std::filesystem::space(".");
  56   VERIFY( check(s) );
  57   VERIFY( s.capacity >= s.free );
  58 }
  59
  60 int
  61 main()
  62 {
  63   test01();
  64   test02();
  65 }