diff --git a/Lib/test/test_multibytecodec_support.py b/Lib/test/test_multibytecodec_support.py
--- a/Lib/test/test_multibytecodec_support.py
+++ b/Lib/test/test_multibytecodec_support.py
@@ -344,5 +344,9 @@ class TestBase_Mapping(unittest.TestCase
             self.assertEqual(str(csetch, self.encoding), unich)
 
 def load_teststring(encoding):
-    from test import cjkencodings_test
-    return cjkencodings_test.teststring[encoding]
+    dir = os.path.join(os.path.dirname(__file__), 'cjkencodings')
+    with open(os.path.join(dir, encoding + '.txt'), 'rb') as f:
+        encoded = f.read()
+    with open(os.path.join(dir, encoding + '-utf8.txt'), 'rb') as f:
+        utf8 = f.read()
+    return encoded, utf8