AjTalk.Tests.Model.ModelParserTests.ParseMessageWithOneArgument C# (CSharp) Method

        public void ParseMessageWithOneArgument()
        {
            ModelParser parser = new ModelParser("r width: 100");
            IExpression expression = parser.ParseExpression();

            Assert.IsNotNull(expression);
            Assert.IsInstanceOfType(expression, typeof(MessageExpression));

            MessageExpression mexpression = (MessageExpression)expression;

            Assert.IsInstanceOfType(mexpression.Target, typeof(VariableExpression));

            VariableExpression vexpression = (VariableExpression)mexpression.Target;
            Assert.AreEqual("r", vexpression.Name);

            Assert.AreEqual("width:", mexpression.Selector);
            Assert.AreEqual(1, mexpression.Arguments.Count());
            Assert.IsInstanceOfType(mexpression.Arguments.First(), typeof(ConstantExpression));

            ConstantExpression cexpression = (ConstantExpression)mexpression.Arguments.First();
            Assert.AreEqual(100, cexpression.Value);
        }