1 files changed, 60 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/experimental/filesystem/path/decompose/root_directory.cc b/libstdc++-v3/testsuite/experimental/filesystem/path/decompose/root_directory.cc
new file mode 100644
index 00000000000..4f372d6ddb3
--- /dev/null
+++ b/libstdc++-v3/testsuite/experimental/filesystem/path/decompose/root_directory.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=gnu++11 -lstdc++fs" }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2015 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <experimental/filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::experimental::filesystem::path;
+
+void
+test01()
+{
+  path p1 = "foo/bar";
+  VERIFY( p1.root_directory() == path() );
+  path p2 = "/foo/bar";
+  VERIFY( p2.root_directory() == path("/") );
+  path p3 = "//foo";
+  VERIFY( p3.root_directory() == path() );
+  path p4 = "///foo";
+  VERIFY( p4.root_directory() == path("/") );
+}
+
+void
+test02()
+{
+  for (const path& p : __gnu_test::test_paths)
+  {
+    path rootdir = p.root_directory();
+    // If root-directory is composed of 'slash name',
+    // 'slash' is excluded from the returned string.
+    if (!rootdir.empty() && rootdir.native() != "/")
+      VERIFY( rootdir.native()[0] != '/' );
+  }
+}
+
+int
+main()
+{
+  test01();
+  test02();
+}