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

   1 // Copyright (C) 2016-2020 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-xfail-if "permissions not supported" { *-*-mingw* } }
  22
  23 // 15.26 Permissions [fs.op.permissions]
  24
  25 #include <experimental/filesystem>
  26 #include <testsuite_fs.h>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 test01()
  31 {
  32   using perms = std::experimental::filesystem::perms;
  33
  34   auto p = __gnu_test::nonexistent_path();
  35
  36   __gnu_test::scoped_file f(p);
  37   VERIFY( exists(p) );
  38   permissions(p, perms::owner_all);
  39   VERIFY( status(p).permissions() == perms::owner_all );
  40   permissions(p, perms::group_read | perms::add_perms);
  41   VERIFY( status(p).permissions() == (perms::owner_all | perms::group_read) );
  42   permissions(p, perms::group_read | perms::remove_perms);
  43   VERIFY( status(p).permissions() == perms::owner_all );
  44 }
  45
  46 void
  47 test02()
  48 {
  49   using perms = std::experimental::filesystem::perms;
  50
  51   auto p = __gnu_test::nonexistent_path();
  52
  53   std::error_code ec;
  54   permissions(p, perms::owner_all, ec);
  55   VERIFY( ec );
  56
  57   __gnu_test::scoped_file f(p);
  58   VERIFY( exists(p) );
  59
  60   ec = std::make_error_code(std::errc::invalid_argument);
  61   permissions(p, perms::owner_all, ec);
  62   VERIFY( !ec );
  63   VERIFY( status(p).permissions() == perms::owner_all );
  64   permissions(p, perms::group_read | perms::add_perms, ec);
  65   VERIFY( !ec );
  66   VERIFY( status(p).permissions() == (perms::owner_all | perms::group_read) );
  67   permissions(p, perms::group_read | perms::remove_perms, ec);
  68   VERIFY( !ec );
  69   VERIFY( status(p).permissions() == perms::owner_all );
  70 }
  71
  72 void
  73 test03()
  74 {
  75   using perms = std::experimental::filesystem::perms;
  76
  77   __gnu_test::scoped_file f;
  78   VERIFY( exists(f.path) );
  79
  80   auto p = __gnu_test::nonexistent_path();
  81   create_symlink(f.path, p);
  82
  83   std::error_code ec, ec2;
  84   permissions(p, perms::owner_all | perms::symlink_nofollow, ec);
  85   try
  86   {
  87     permissions(p, perms::owner_all | perms::symlink_nofollow);
  88   }
  89   catch (const std::experimental::filesystem::filesystem_error& ex)
  90   {
  91     ec2 = ex.code();
  92     VERIFY( ex.path1() == p );
  93   }
  94   // Both calls should succeed, or both should fail with same error:
  95   VERIFY( ec == ec2 );
  96
  97   remove(p);
  98 }
  99
 100 void
 101 test04()
 102 {
 103   using perms = std::experimental::filesystem::perms;
 104
 105   auto p = __gnu_test::nonexistent_path();
 106   create_symlink(__gnu_test::nonexistent_path(), p);
 107
 108   std::error_code ec, ec2;
 109   permissions(p, perms::owner_all, ec);
 110   VERIFY( ec );
 111   try
 112   {
 113     permissions(p, perms::owner_all);
 114   }
 115   catch (const std::experimental::filesystem::filesystem_error& ex)
 116   {
 117     ec2 = ex.code();
 118     VERIFY( ex.path1() == p );
 119   }
 120   VERIFY( ec == ec2 );
 121
 122   remove(p);
 123 }
 124
 125 void
 126 test05()
 127 {
 128   using perms = std::experimental::filesystem::perms;
 129   std::error_code ec;
 130
 131   __gnu_test::scoped_file f;
 132   auto p = perms::owner_write;
 133
 134   // symlink_nofollow should not give an error for non-symlinks
 135   permissions(f.path, p|perms::symlink_nofollow, ec);
 136   VERIFY( !ec );
 137   auto st = status(f.path);
 138   VERIFY( st.permissions() == p );
 139   p |= perms::owner_read;
 140   permissions(f.path, p|perms::symlink_nofollow, ec);
 141   st = status(f.path);
 142   VERIFY( st.permissions() == p );
 143 }
 144
 145 int
 146 main()
 147 {
 148   test01();
 149   test02();
 150   test03();
 151   test04();
 152   test05();
 153 }