Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/input.output/stream.buffers/streambuf/streambuf.cons/default.pass.cpp

@@ -0,0 +1,56 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <streambuf>
+
+// template <class charT, class traits = char_traits<charT> >
+// class basic_streambuf;
+
+// basic_streambuf();
+
+#include <streambuf>
+#include <cassert>
+
+#include "platform_support.h" // locale name macros
+
+template <class CharT>
+struct test
+    : public std::basic_streambuf<CharT>
+{
+    test()
+    {
+        assert(this->eback() == 0);
+        assert(this->gptr() == 0);
+        assert(this->egptr() == 0);
+        assert(this->pbase() == 0);
+        assert(this->pptr() == 0);
+        assert(this->epptr() == 0);
+    }
+};
+
+int main()
+{
+    {
+        test<char> t;
+        assert(t.getloc().name() == "C");
+    }
+    {
+        test<wchar_t> t;
+        assert(t.getloc().name() == "C");
+    }
+    std::locale::global(std::locale(LOCALE_en_US_UTF_8));
+    {
+        test<char> t;
+        assert(t.getloc().name() == LOCALE_en_US_UTF_8);
+    }
+    {
+        test<wchar_t> t;
+        assert(t.getloc().name() == LOCALE_en_US_UTF_8);
+    }
+}