diff --git a/Lib/test/test_audioop.py b/Lib/test/test_audioop.py
index 74f72a8..e966833 100644
--- a/Lib/test/test_audioop.py
+++ b/Lib/test/test_audioop.py
@@ -169,6 +169,15 @@
 	return 0
     return 1
 
+def testratecv(data):
+    if verbose:
+	print 'ratecv'
+    state = (-8000, ((256, 512),))
+    if audioop.ratecv(data[0], 1, 1, 8000, 16000, state) != \
+       ('\001\000\000\001\001\002', state):
+	return 0
+    return 1
+
 def testreverse(data):
     if verbose:
 	print 'reverse'