1 files changed, 30 insertions, 0 deletions
diff --git a/libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/default.pass.cpp b/libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/default.pass.cpp
new file mode 100644
index 00000000000..28007c8edf4
--- /dev/null
+++ b/libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/default.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <sstream>
+
+// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
+// class basic_stringbuf
+
+// explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out);
+
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+    {
+        std::stringbuf buf;
+        assert(buf.str() == "");
+    }
+    {
+        std::wstringbuf buf;
+        assert(buf.str() == L"");
+    }
+}