libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc

   1 // Copyright (C) 2017-2024 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 "-DUSE_FILESYSTEM_TS -lstdc++fs" }
  19 // { dg-do run { target c++11 } }
  20 // { dg-require-filesystem-ts "" }
  21 // { dg-require-target-fs-space "" }
  22
  23 // 30.10.14.3 Permissions [fs.op.space]
  24
  25 #include <experimental/filesystem>
  26 #include <testsuite_fs.h>
  27 #include <testsuite_hooks.h>
  28
  29 namespace fs = std::experimental::filesystem;
  30
  31 bool check(fs::space_info const& s)
  32 {
  33   const std::uintmax_t err = -1;
  34   return s.capacity != err || s.free != err || s.available != err;
  35 }
  36
  37 void
  38 test01()
  39 {
  40   const fs::path root = __gnu_test::root_path();
  41   fs::space_info s = fs::space(root);
  42   std::error_code ec = make_error_code(std::errc::invalid_argument);
  43   s = fs::space(root, ec);
  44   VERIFY( !ec );
  45
  46   s = fs::space(__gnu_test::nonexistent_path()/".", ec);
  47   if (ec)
  48     VERIFY( ! check(s) );
  49   else
  50     VERIFY( check(s) );
  51 }
  52
  53 void
  54 test02()
  55 {
  56   fs::space_info s = fs::space(".");
  57   VERIFY( check(s) );
  58   VERIFY( s.capacity >= s.free );
  59 }
  60
  61 int
  62 main()
  63 {
  64   test01();
  65   test02();
  66 }