AjErl.Tests.Compiler.ParserTests.ParseSimpleAdd C# (CSharp) Метод

        public void ParseSimpleAdd()
        {
            Parser parser = new Parser("10+20.");

            IExpression expression = parser.ParseExpression();

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

            AddExpression addexpression = (AddExpression)expression;

            Assert.IsInstanceOfType(addexpression.LeftExpression, typeof(ConstantExpression));
            Assert.IsInstanceOfType(addexpression.RightExpression, typeof(ConstantExpression));

            Assert.AreEqual(10, ((ConstantExpression)addexpression.LeftExpression).Value);
            Assert.AreEqual(20, ((ConstantExpression)addexpression.RightExpression).Value);
        }