Silence warnings due to deprecated TestCase methods

With a veiled criticism.

tests/testutils.py

@@ -41,6 +41,16 @@ else:
 
     unittest.TestCase.skipTest = skipTest
 
+# Silence warnings caused by the stubborness of the Python unittest maintainers
+# http://bugs.python.org/issue9424
+if not hasattr(unittest.TestCase, 'assert_') \
+or unittest.TestCase.assert_ is not unittest.TestCase.assertTrue:
+    # mavaff...
+    unittest.TestCase.assert_ = unittest.TestCase.assertTrue
+    unittest.TestCase.failUnless = unittest.TestCase.assertTrue
+    unittest.TestCase.assertEquals = unittest.TestCase.assertEqual
+    unittest.TestCase.failUnlessEqual = unittest.TestCase.assertEqual
+
 
 def decorate_all_tests(cls, decorator):
     """Apply *decorator* to all the tests defined in the TestCase *cls*."""