Index: Lib/test/test_index.py
===================================================================
--- Lib/test/test_index.py	(revision 77399)
+++ Lib/test/test_index.py	(working copy)
@@ -214,6 +214,9 @@
 class StringTestCase(SeqTestCase):
     seq = "this is a test"
 
+class ByteArrayTestCase(SeqTestCase):
+    seq = bytearray("this is a test")
+
 class UnicodeTestCase(SeqTestCase):
     seq = u"this is a test"
 
@@ -301,6 +304,7 @@
         BaseTestCase,
         ListTestCase,
         TupleTestCase,
+        ByteArrayTestCase,
         StringTestCase,
         UnicodeTestCase,
         ClassicSeqTestCase,