SharpDevelop/ICSharpCode.NRefactory.Tests/CSharp/DepthFirstVisitorTests.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;

namespace ICSharpCode.NRefactory.CSharp
{
	[TestFixture]
	public class DepthFirstVisitorTests
	{
		sealed class CollectNodesVisitor : DepthFirstAstVisitor
		{
			internal List<AstNode> nodes = new List<AstNode>();
			
			protected override void VisitChildren(AstNode node)
			{
				nodes.Add(node);
				base.VisitChildren(node);
			}
		}
		
		[Test]
		public void TestCollectNodes()
		{
			var cu = new CSharpParser().Parse("using System;\nclass Test {\n  int field; // comment\n}");
			CollectNodesVisitor v = new CollectNodesVisitor();
			cu.AcceptVisitor(v);
			Assert.AreEqual(cu.DescendantsAndSelf.ToList(), v.nodes);
		}
	}
}