Standardize on test.test_support.run_unittest() (as opposed to a mix of run_unittest() and run_suite()). Also, add functionality to run_unittest() that admits usage of unittest.TestLoader.loadTestsFromModule().
diff --git a/Lib/test/test_base64.py b/Lib/test/test_base64.py
index 997a413..ff2c370 100644
--- a/Lib/test/test_base64.py
+++ b/Lib/test/test_base64.py
@@ -183,16 +183,8 @@
 
 
 
-def suite():
-    suite = unittest.TestSuite()
-    suite.addTest(unittest.makeSuite(LegacyBase64TestCase))
-    suite.addTest(unittest.makeSuite(BaseXYTestCase))
-    return suite
-
-
 def test_main():
-    test_support.run_suite(suite())
-
+    test_support.run_unittest(__name__)
 
 if __name__ == '__main__':
-    unittest.main(defaultTest='suite')
+    test_main()