public void Should_write_the_properties()
        {
            var joinedSubclassMapping = new JoinedSubclassMapping();
            joinedSubclassMapping.AddProperty(new PropertyMapping());

            _mocker.Get<IHbmWriter<PropertyMapping>>()
                .Expect(x => x.Write(joinedSubclassMapping.Properties.First())).Return(new HbmProperty());

            _subclassWriter.VerifyXml(joinedSubclassMapping)
                .Element("property").Exists();
        }