public void SetSqlUpdate() { var subClass = typeof(Inherited); var mapdoc = new HbmMapping(); var mapper = new UnionSubclassMapper(subClass, mapdoc); mapper.SqlUpdate("blah"); var hbmEntity = mapdoc.UnionSubclasses[0]; hbmEntity.SqlUpdate.Should().Not.Be.Null(); hbmEntity.SqlUpdate.Text[0].Should().Be("blah"); }