public void ParseTwoUnaryMessage()
{
ModelParser parser = new ModelParser("x length asString");
IExpression expression = parser.ParseExpression();
Assert.IsNotNull(expression);
Assert.IsInstanceOfType(expression, typeof(MessageExpression));
MessageExpression mexpression = (MessageExpression)expression;
Assert.IsInstanceOfType(mexpression.Target, typeof(MessageExpression));
Assert.AreEqual("asString", mexpression.Selector);
Assert.AreEqual(0, mexpression.Arguments.Count());
}