--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2012-03-10  Bruno Haible  <bruno@clisp.org>
 
+	Tests for module 'log1pf'.
+	* modules/log1pf-tests: New file.
+	* tests/test-log1pf.c: New file.
+
 	New module 'log1pf'.
 	* lib/math.in.h (log1pf): New declaration.
 	* lib/log1pf.c: New file.

new file mode 100644
--- /dev/null
+++ b/modules/log1pf-tests
@@ -0,0 +1,16 @@
+Files:
+tests/test-log1pf.c
+tests/test-log1p.h
+tests/signature.h
+tests/macros.h
+tests/randomf.c
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-log1pf
+check_PROGRAMS += test-log1pf
+test_log1pf_SOURCES = test-log1pf.c randomf.c
+test_log1pf_LDADD = $(LDADD) @LOG1PF_LIBM@

new file mode 100644
--- /dev/null
+++ b/tests/test-log1pf.c
@@ -0,0 +1,49 @@
+/* Test of log1pf() function.
+   Copyright (C) 2010-2012 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 <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (log1pf, float, (float));
+
+#include <float.h>
+
+#include "macros.h"
+
+#define DOUBLE float
+#define HUGEVAL HUGE_VALF
+#define L_(literal) literal##f
+#define MANT_DIG FLT_MANT_DIG
+#define LOG1P log1pf
+#define RANDOM randomf
+#include "test-log1p.h"
+
+int
+main ()
+{
+  /* A particular value.  */
+  x = 0.6f;
+  y = log1pf (x);
+  ASSERT (y >= 0.4700036f && y <= 0.4700037f);
+
+  test_function ();
+
+  return 0;
+}