diff -r a24783b5a9b6 Lib/test/test_ctypes.py
--- a/Lib/test/test_ctypes.py	Tue Jan 29 15:49:33 2013 -0600
+++ b/Lib/test/test_ctypes.py	Tue Jan 29 15:57:17 2013 -0600
@@ -7,10 +7,10 @@
 
 import ctypes.test
 
-def test_main():
+def load_tests(*args):
     skipped, testcases = ctypes.test.get_tests(ctypes.test, "test_*.py", verbosity=0)
     suites = [unittest.makeSuite(t) for t in testcases]
-    run_unittest(unittest.TestSuite(suites))
+    return unittest.TestSuite(suites)
 
 if __name__ == "__main__":
-    test_main()
+    unittest.main()