def test_setOpenIDNamespace_deprecated(self):
message = Message()
warning_msg = "Method 'setOpenIDNamespace' is deprecated. Pass namespace to Message constructor instead."
with ShouldWarn(DeprecationWarning(warning_msg)):
warnings.simplefilter('always')
message.setOpenIDNamespace(OPENID2_NS, False)
self.assertEqual(message.getOpenIDNamespace(), OPENID2_NS)
