#2355: py3k warning for buffer().
diff --git a/Lib/test/test_py3kwarn.py b/Lib/test/test_py3kwarn.py
index 07bcdf9..41ad25b 100644
--- a/Lib/test/test_py3kwarn.py
+++ b/Lib/test/test_py3kwarn.py
@@ -118,6 +118,11 @@
             with catch_warning() as w:
                 self.assertWarning(set(), w, expected)
 
+    def test_buffer(self):
+        expected = 'buffer will be removed in 3.x'
+        with catch_warning() as w:
+            self.assertWarning(buffer('a'), w, expected)
+
 
 def test_main():
     run_unittest(TestPy3KWarnings)