libstdc++-v3/testsuite/27_io/filesystem/filesystem_error/cons.cc

   1 // Copyright (C) 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 #include <filesystem>
  23 #include <testsuite_hooks.h>
  24
  25 using std::filesystem::filesystem_error;
  26
  27 bool contains(std::string_view what_str, std::string_view expected)
  28 {
  29   return what_str.find(expected) != std::string_view::npos;
  30 }
  31
  32 void
  33 test01()
  34 {
  35   const char* const str = "error test";
  36   const std::error_code ec = make_error_code(std::errc::is_a_directory);
  37   const std::filesystem::path p1 = "test/path/one";
  38   const std::filesystem::path p2 = "/test/path/two";
  39
  40   const filesystem_error e1(str, ec);
  41   VERIFY( contains(e1.what(), str) );
  42   VERIFY( !contains(e1.what(), "[]") ); // no "empty path" in the string
  43   VERIFY( e1.path1().empty() );
  44   VERIFY( e1.path2().empty() );
  45   VERIFY( e1.code() == ec );
  46
  47   const filesystem_error e2(str, p1, ec);
  48   VERIFY( e2.path1() == p1 );
  49   VERIFY( e2.path2().empty() );
  50   VERIFY( contains(e2.what(), str) );
  51   VERIFY( contains(e2.what(), p1.string()) );
  52   VERIFY( !contains(e2.what(), "[]") );
  53   VERIFY( e2.code() == ec );
  54
  55   const filesystem_error e3(str, std::filesystem::path{}, ec);
  56   VERIFY( e3.path1().empty() );
  57   VERIFY( e3.path2().empty() );
  58   VERIFY( contains(e3.what(), str) );
  59   VERIFY( contains(e3.what(), "[]") );
  60   VERIFY( !contains(e3.what(), "[] []") );
  61   VERIFY( e3.code() == ec );
  62
  63   const filesystem_error e4(str, p1, p2, ec);
  64   VERIFY( e4.path1() == p1 );
  65   VERIFY( e4.path2() == p2 );
  66   VERIFY( contains(e4.what(), str) );
  67   VERIFY( contains(e4.what(), p1.string()) );
  68   VERIFY( contains(e4.what(), p2.string()) );
  69   VERIFY( !contains(e4.what(), "[]") );
  70   VERIFY( e4.code() == ec );
  71
  72   const filesystem_error e5(str, p1, std::filesystem::path{}, ec);
  73   VERIFY( e5.path1() == p1 );
  74   VERIFY( e5.path2().empty() );
  75   VERIFY( contains(e5.what(), str) );
  76   VERIFY( contains(e5.what(), p1.string()) );
  77   VERIFY( contains(e5.what(), "[]") );
  78   VERIFY( e5.code() == ec );
  79
  80   const filesystem_error e6(str, std::filesystem::path{}, p2, ec);
  81   VERIFY( e6.path1().empty() );
  82   VERIFY( e6.path2() == p2 );
  83   VERIFY( contains(e6.what(), str) );
  84   VERIFY( contains(e6.what(), "[]") );
  85   VERIFY( contains(e6.what(), p2.string()) );
  86   VERIFY( e6.code() == ec );
  87 }
  88
  89 int
  90 main()
  91 {
  92   test01();
  93 }