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diff --git a/libstdc++-v3/testsuite/22_locale/facet/25421.cc b/libstdc++-v3/testsuite/22_locale/facet/25421.cc
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+++ b/libstdc++-v3/testsuite/22_locale/facet/25421.cc
@@ -0,0 +1,66 @@
+// 2005-12-15  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2005, 2009 Free Software Foundation
+//
+// 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/>.
+
+// 22.1.1.1.2 - class locale::facet [lib.locale.facet]
+
+#include <stdexcept>
+#include <locale>
+#include <testsuite_hooks.h>
+
+// libstdc++/25421
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  try
+    {
+      new codecvt_byname<char, char, mbstate_t>("invalid-loc");
+      new collate_byname<char>("invalid-loc");
+      new ctype_byname<char>("invalid-loc");
+      new messages_byname<char>("invalid-loc");
+      new moneypunct_byname<char, true>("invalid-loc");
+      new numpunct_byname<char>("invalid-loc");
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+      new codecvt_byname<wchar_t, char, mbstate_t>("invalid-loc");
+      new collate_byname<wchar_t>("invalid-loc");
+      new ctype_byname<wchar_t>("invalid-loc");
+      new messages_byname<wchar_t>("invalid-loc");
+      new moneypunct_byname<wchar_t, true>("invalid-loc");
+      new numpunct_byname<wchar_t>("invalid-loc");
+#endif
+    }
+  catch(const std::runtime_error&)
+    {
+      // named locale not valid
+      VERIFY( true );
+    }
+  catch(...)
+    {
+      // some other error
+      VERIFY( false );
+    }
+}
+
+int main()
+{
+  test01();
+  return 0;
+}