public void test_THAT_user_id_IS_rendered_to_caml_properly()
        {
            var    operand = new UserIdValueOperand("123");
            string caml    = operand.ToCaml().ToString();

            Assert.That(caml, Is.EqualTo("<Value Type=\"User\">123</Value>"));
        }
        public void test_WHEN_string_is_not_valid_integer_THEN_exception_is_thrown()
        {
            var operand = new UserIdValueOperand("asd");

            Assert.That(operand.Value, Is.EqualTo(1));
        }