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

   1 // Copyright (C) 2017 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 #include <filesystem>
  23 #include <testsuite_fs.h>
  24 #include <testsuite_hooks.h>
  25
  26 namespace fs = std::filesystem;
  27
  28 void
  29 test01()
  30 {
  31   auto dir = __gnu_test::nonexistent_path();
  32   fs::create_directory(dir);
  33   const auto dirc = canonical(dir);
  34   fs::path foo = dir/"foo", bar = dir/"bar";
  35   fs::create_directory(foo);
  36   fs::create_directory(bar);
  37   fs::create_directory(bar/"baz");
  38   fs::create_symlink("../bar", foo/"bar");
  39
  40   auto p = fs::weakly_canonical(dir/"foo//./bar///../biz/.");
  41   VERIFY( p == dirc/"biz/" );
  42   p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.");
  43   VERIFY( p == dirc/"bar/baz" );
  44   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz");
  45   VERIFY( p == dirc/"bar/baz" );
  46
  47   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
  48   std::error_code ec;
  49
  50   ec = bad_ec;
  51   p = fs::weakly_canonical(dir/"foo//./bar///../biz/.", ec);
  52   VERIFY( !ec );
  53   VERIFY( p == dirc/"biz/" );
  54   ec = bad_ec;
  55   p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.", ec);
  56   VERIFY( !ec );
  57   VERIFY( p == dirc/"bar/baz" );
  58   ec = bad_ec;
  59   p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz", ec);
  60   VERIFY( !ec );
  61   VERIFY( p == dirc/"bar/baz" );
  62
  63   fs::remove_all(dir, ec);
  64 }
  65
  66 int
  67 main()
  68 {
  69   test01();
  70 }