public void UniqueKey_Set_and_get() {
            var mgr = new MappingManager();
            var property = typeof (Entity).GetProperty("Id");
            mgr.Add(property, "id");
            mgr.SetUniqueKey(property);
            var key = mgr.GetUniqueKey(typeof (Entity));

            Assert.AreEqual(property, key.Property);
            Assert.AreEqual("id", key.FieldName);
        }
 public void GetUniqueKey_doesnt_admit_null()
 {
     var mgr = new MappingManager();
     mgr.GetUniqueKey(null);
 }