NUnitWeb Code

using System;
using System.Collections.Generic;
using System.Text;

using NUnit.Framework;

namespace JavaScript.UnitTest
{
	[TestFixture]
	public class IncDec
	{
		[Test]
		public void SimplePostInc()
		{
			JsEngine eng = new JsEngine();
			string src =
				"var x = 1;\r\n" +
				"x++;";
			Assert.AreEqual("1", eng.Eval(src).ToString(), "Post inc should return original value");
			Assert.AreEqual("2", eng.Eval(src + "\r\nx;").ToString(), "Increment failed");
		}

		[Test]
		public void SimplePostDec()
		{
			JsEngine eng = new JsEngine();
			string src =
				"var x = 1;\r\n" +
				"x--;";
			Assert.AreEqual("1", eng.Eval(src).ToString(), "Post dec should return original value");
			Assert.AreEqual("0", eng.Eval(src + "\r\nx;").ToString(), "Decrement failed");
		}

		[Test]
		public void SimplePreInc()
		{
			JsEngine eng = new JsEngine();
			string src =
				"var x = 1;\r\n" +
				"++x;";
			Assert.AreEqual("2", eng.Eval(src).ToString(), "Pre inc should return updated value");
			Assert.AreEqual("2", eng.Eval(src + "\r\nx;").ToString(), "Assign failed?");
		}

		[Test]
		public void SimplePreDec()
		{
			JsEngine eng = new JsEngine();
			string src =
				"var x = 1;\r\n" +
				"--x;";
			Assert.AreEqual("0", eng.Eval(src).ToString(), "Pre dec should return updated value");
			Assert.AreEqual("0", eng.Eval(src + "\r\nx;").ToString(), "Assign failed?");
		}
	}
}