public void ClassAttributes()
        {
            IClassMapping rm = new AttributeOverXmlClassMapping(GetXmlClassMapping(typeof (MixAddress)));
            var mi = new List<Attribute>(rm.GetClassAttributes());
            Assert.AreEqual(0, mi.Count);

            rm = new AttributeOverXmlClassMapping(GetXmlClassMapping(typeof (MixSuricato)));
            mi = new List<Attribute>(rm.GetClassAttributes());
            Assert.AreEqual(2, mi.Count);

            rm = new XmlOverAttributeClassMapping(GetXmlClassMapping(typeof (MixSuricato)));
            mi = new List<Attribute>(rm.GetClassAttributes());
            Assert.AreEqual(2, mi.Count);
        }