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alielie

2026-09-10 9ec80cafc23f5ee3278cacce3c9f86f4087b435a

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using NUnit.Framework;
 
namespace DynamicExpresso.UnitTest
{
    [TestFixture]
    public class DefaultOperatorTest
    {
        [Test]
        public void Default_value_type()
        {
            var target = new Interpreter();
 
            Assert.That(target.Eval("default(bool)"), Is.EqualTo(default(bool)));
            Assert.That(target.Eval("default(char)"), Is.EqualTo(default(char)));
            Assert.That(target.Eval("default(sbyte)"), Is.EqualTo(default(sbyte)));
            Assert.That(target.Eval("default(byte)"), Is.EqualTo(default(byte)));
            Assert.That(target.Eval("default(short)"), Is.EqualTo(default(short)));
            Assert.That(target.Eval("default(ushort)"), Is.EqualTo(default(ushort)));
            Assert.That(target.Eval("default(int)"), Is.EqualTo(default(int)));
            Assert.That(target.Eval("default(uint)"), Is.EqualTo(default(uint)));
            Assert.That(target.Eval("default(long)"), Is.EqualTo(default(long)));
            Assert.That(target.Eval("default(ulong)"), Is.EqualTo(default(ulong)));
            Assert.That(target.Eval("default(float)"), Is.EqualTo(default(float)));
            Assert.That(target.Eval("default(double)"), Is.EqualTo(default(double)));
            Assert.That(target.Eval("default(decimal)"), Is.EqualTo(default(decimal)));
            Assert.That(target.Eval("default(DateTime)"), Is.EqualTo(default(System.DateTime)));
            Assert.That(target.Eval("default(TimeSpan)"), Is.EqualTo(default(System.TimeSpan)));
            Assert.That(target.Eval("default(Guid)"), Is.EqualTo(default(System.Guid)));
 
            Assert.That(target.Eval("default(bool)").GetType(), Is.EqualTo(typeof(bool)));
            Assert.That(target.Eval("default(char)").GetType(), Is.EqualTo(typeof(char)));
            Assert.That(target.Eval("default(sbyte)").GetType(), Is.EqualTo(typeof(sbyte)));
            Assert.That(target.Eval("default(byte)").GetType(), Is.EqualTo(typeof(byte)));
            Assert.That(target.Eval("default(short)").GetType(), Is.EqualTo(typeof(short)));
            Assert.That(target.Eval("default(ushort)").GetType(), Is.EqualTo(typeof(ushort)));
            Assert.That(target.Eval("default(int)").GetType(), Is.EqualTo(typeof(int)));
            Assert.That(target.Eval("default(uint)").GetType(), Is.EqualTo(typeof(uint)));
            Assert.That(target.Eval("default(long)").GetType(), Is.EqualTo(typeof(long)));
            Assert.That(target.Eval("default(ulong)").GetType(), Is.EqualTo(typeof(ulong)));
            Assert.That(target.Eval("default(float)").GetType(), Is.EqualTo(typeof(float)));
            Assert.That(target.Eval("default(double)").GetType(), Is.EqualTo(typeof(double)));
            Assert.That(target.Eval("default(decimal)").GetType(), Is.EqualTo(typeof(decimal)));
            Assert.That(target.Eval("default(DateTime)").GetType(), Is.EqualTo(typeof(System.DateTime)));
            Assert.That(target.Eval("default(TimeSpan)").GetType(), Is.EqualTo(typeof(System.TimeSpan)));
            Assert.That(target.Eval("default(Guid)").GetType(), Is.EqualTo(typeof(System.Guid)));
        }
 
        [Test]
        public void Default_reference_type()
        {
            var target = new Interpreter();
 
            Assert.That(target.Eval("default(object)"), Is.EqualTo(default(object)));
            Assert.That(target.Eval("default(string)"), Is.EqualTo(default(string)));
        }
 
        [Test]
        public void Default_nullable_type()
        {
            var target = new Interpreter();
 
            Assert.That(target.Eval("default(int?)"), Is.EqualTo(default(int?)));
            Assert.That(target.Eval("default(double?)"), Is.EqualTo(default(double?)));
            Assert.That(target.Eval("default(DateTime?)"), Is.EqualTo(default(System.DateTime?)));
        }
    }
}