--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-01-10  Bruno Haible  <bruno@clisp.org>
 
+	Tests for module 'unistr/u16-set'.
+	* modules/unistr/u16-set-tests: New file.
+	* tests/unistr/test-u16-set.c: New file.
+
 	Tests for module 'unistr/u8-set'.
 	* modules/unistr/u8-set-tests: New file.
 	* tests/unistr/test-u8-set.c: New file.

new file mode 100644
--- /dev/null
+++ b/modules/unistr/u16-set-tests
@@ -0,0 +1,13 @@
+Files:
+tests/unistr/test-u16-set.c
+tests/unistr/test-set.h
+tests/macros.h
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-u16-set
+check_PROGRAMS += test-u16-set
+test_u16_set_SOURCES = unistr/test-u16-set.c

new file mode 100644
--- /dev/null
+++ b/tests/unistr/test-u16-set.c
@@ -0,0 +1,29 @@
+/* Test of u16_set() function.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
+
+#include <config.h>
+
+#include "unistr.h"
+
+#include "macros.h"
+
+#define UNIT uint16_t
+#define U_SET u16_set
+#define MAGIC 0xBADE
+#define VALUE 0x2102
+#include "test-set.h"