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alielie

2026-09-10 9ec80cafc23f5ee3278cacce3c9f86f4087b435a

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using NUnit.Framework;
using System.Linq.Expressions;
 
namespace DynamicExpresso.UnitTest
{
    [TestFixture]
    public class WorkingContextTest
    {
        [Test]
        public void Simulate_a_working_context_using_this_keyword()
        {
            var workingContext = new { FirstName = "homer" };
 
            var interpreter = new Interpreter();
            interpreter.SetVariable("this", workingContext);
 
            Assert.That(interpreter.Eval("this.FirstName"), Is.EqualTo(workingContext.FirstName));
        }
 
        [Test]
        public void Injection_a_property_expresion_to_simulate_a_working_context_parsing_another_property()
        {
            var workingContext = new { FirstName = "homer" };
 
            var interpreter = new Interpreter();
            interpreter.SetVariable("this", workingContext);
            var firstNameExpression = interpreter.Parse("this.FirstName").Expression;
            interpreter.SetExpression("FirstName", firstNameExpression);
 
            Assert.That(interpreter.Eval("FirstName"), Is.EqualTo(workingContext.FirstName));
        }
 
        [Test]
        public void Injection_a_property_expresion_to_simulate_a_working_context()
        {
            var workingContext = new { FirstName = "homer" };
 
            var workingContextExpression = Expression.Constant(workingContext);
            var firstNameExpression = Expression.Property(workingContextExpression, "FirstName");
 
            var interpreter = new Interpreter();
            interpreter.SetExpression("FirstName", firstNameExpression);
 
            Assert.That(interpreter.Eval("FirstName"), Is.EqualTo(workingContext.FirstName));
        }
    }
}