public virtual void test_constant_name()
        {
            AttributeType <string> test = AttributeType.NAME;

            assertEquals(test.ToString(), "name");
        }
        //-------------------------------------------------------------------------
        public virtual void test_of()
        {
            AttributeType <string> test = AttributeType.of("test");

            assertEquals(test.ToString(), "test");
        }
        //-------------------------------------------------------------------------
        public virtual void test_constant_description()
        {
            AttributeType <string> test = AttributeType.DESCRIPTION;

            assertEquals(test.ToString(), "description");
        }