1 // { dg-options "-std=gnu++17" }
2 // { dg-do run { target c++17 } }
3 
4 // Copyright (C) 2014-2020 Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library.  This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 // GNU General Public License for more details.
16 
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3.  If not see
19 // <http://www.gnu.org/licenses/>.
20 
21 // 8.4.9 path decomposition [path.decompose]
22 
23 #include <filesystem>
24 #include <testsuite_hooks.h>
25 #include <testsuite_fs.h>
26 
27 using std::filesystem::path;
28 
29 void
test01()30 test01()
31 {
32   VERIFY( path("/foo/bar.txt").extension() == path(".txt") );
33   VERIFY( path("/foo/bar.baz.txt").extension() == path(".txt") );
34   VERIFY( path(".bar.baz.txt").extension() == path(".txt") );
35 
36   VERIFY( path(".profile").extension() == path("") );
37   VERIFY( path(".profile.old").extension() == path(".old") );
38   VERIFY( path("..abc").extension() == path(".abc") );
39   VERIFY( path("...abc").extension() == path(".abc") );
40   VERIFY( path("abc..def").extension() == path(".def") );
41   VERIFY( path("abc...def").extension() == path(".def") );
42   VERIFY( path("abc.").extension() == path(".") );
43   VERIFY( path("abc..").extension() == path(".") );
44   VERIFY( path("abc.d.").extension() == path(".") );
45   VERIFY( path("..").extension() == path("") );
46   VERIFY( path(".").extension() == path("") );
47 
48   VERIFY( path().extension() == path() );
49 }
50 
51 void
test02()52 test02()
53 {
54   for (const path& p : __gnu_test::test_paths)
55   {
56     auto stem = p.stem();
57     auto ext = p.extension();
58     auto file = p.filename();
59     VERIFY( stem.native() + ext.native() == file.native() );
60   }
61 }
62 
63 int
main()64 main()
65 {
66   test01();
67   test02();
68 }
69