def test_ednsVersion(self):
        """
        Two L{dns._EDNSMessage} instances compare equal if they have the same
        ednsVersion.
        """
        self.assertNormalEqualityImplementation(
            self.messageFactory(ednsVersion=1),
            self.messageFactory(ednsVersion=1),
            self.messageFactory(ednsVersion=None),
            )

        Two L{dns._EDNSMessage} instances compare equal if they have the same
        ednsVersion.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/names/test/test_dns.py