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

   1 // Copyright (C) 2017-2018 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-options "-std=gnu++17 -lstdc++fs" }
  19 // { dg-do run { target c++17 } }
  20 // { dg-require-filesystem-ts "" }
  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 void
  29 test01()
  30 {
  31   std::filesystem::space_info s = std::filesystem::space("/");
  32   std::error_code ec = make_error_code(std::errc::invalid_argument);
  33   s = std::filesystem::space("/", ec);
  34   VERIFY( !ec );
  35
  36   s = std::filesystem::space(__gnu_test::nonexistent_path(), ec);
  37   VERIFY( ec );
  38   VERIFY( s.capacity ==  static_cast<uintmax_t>(-1) );
  39   VERIFY( s.free ==  static_cast<uintmax_t>(-1) );
  40   VERIFY( s.available ==  static_cast<uintmax_t>(-1) );
  41 }
  42
  43 void
  44 test02()
  45 {
  46   std::filesystem::space_info s = std::filesystem::space(".");
  47   VERIFY( s.capacity >= s.free );
  48 }
  49
  50 int
  51 main()
  52 {
  53   test01();
  54   test02();
  55 }