'Two L{dns._EDNSMessage} instances compare equal if they have the same
additional records.'

def test_additional(self):

    self.assertNormalEqualityImplementation(self.messageFactory(additional=[dns.RRHeader('example.com', payload=dns.Record_A('1.2.3.4'))]), self.messageFactory(additional=[dns.RRHeader('example.com', payload=dns.Record_A('1.2.3.4'))]), self.messageFactory(additional=[dns.RRHeader('example.org', payload=dns.Record_A('1.2.3.4'))]))
