libstdc++-v3/testsuite/27_io/filesystem/operations/weakly_canonical.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-do run { target c++17 } }
  19 // { dg-require-filesystem-ts "" }
  20
  21 #include <filesystem>
  22 #include <testsuite_fs.h>
  23 #include <testsuite_hooks.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   auto dir = __gnu_test::nonexistent_path();
  34   fs::create_directory(dir);
  35   const auto dirc = canonical(dir);
  36   fs::path foo = dir/"foo", bar = dir/"bar";
  37   fs::create_directory(foo);
  38   fs::create_directory(bar);
  39   fs::create_directory(bar/"baz");
  40   fs::path p;
  41
  42 #ifndef NO_SYMLINKS
  43   fs::create_symlink("../bar", foo/"bar");
  44
  45   p = fs::weakly_canonical(dir/"foo//./bar///../biz/.");
  46   VERIFY( p == dirc/"biz/" );
  47   p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.");
  48   VERIFY( p == dirc/"bar/baz" );
  49   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz");
  50   VERIFY( p == dirc/"bar/baz" );
  51
  52   ec = bad_ec;
  53   p = fs::weakly_canonical(dir/"foo//./bar///../biz/.", ec);
  54   VERIFY( !ec );
  55   VERIFY( p == dirc/"biz/" );
  56   ec = bad_ec;
  57   p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.", ec);
  58   VERIFY( !ec );
  59   VERIFY( p == dirc/"bar/baz" );
  60   ec = bad_ec;
  61   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz", ec);
  62   VERIFY( !ec );
  63   VERIFY( p == dirc/"bar/baz" );
  64 #endif
  65
  66   // As above, but using "foo/.." instead of "foo",
  67   // because there is no "foo/bar" symlink
  68
  69   p = fs::weakly_canonical(dir/"./bar///../biz/.");
  70   VERIFY( p == dirc/"biz/" );
  71   p = fs::weakly_canonical(dir/"foo/.././/bar/././baz/.");
  72   VERIFY( p == dirc/"bar/baz" );
  73   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/../bar/baz");
  74   VERIFY( p == dirc/"bar/baz" );
  75
  76   ec = bad_ec;
  77   p = fs::weakly_canonical(dir/"foo/..//./bar///../biz/.", ec);
  78   VERIFY( !ec );
  79   VERIFY( p == dirc/"biz/" );
  80   ec = bad_ec;
  81   p = fs::weakly_canonical(dir/"foo/.././/bar/././baz/.", ec);
  82   VERIFY( !ec );
  83   VERIFY( p == dirc/"bar/baz" );
  84   ec = bad_ec;
  85   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/../bar/baz", ec);
  86   VERIFY( !ec );
  87   VERIFY( p == dirc/"bar/baz" );
  88
  89   fs::remove_all(dir, ec);
  90 }
  91
  92 int
  93 main()
  94 {
  95   test01();
  96 }