// The following code was generated by Microsoft Visual Studio 2005.
// The test owner should check each test for validity.
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Text;
using System.Collections.Generic;
using Aga.Controls.Tree;

namespace Aga.Controls.UnitTests
{
	[TestClass]
	public class NodeTest
	{
		[TestMethod]
		public void ParentTest()
		{
			Node r1 = new Node("");
			Node node = new Node("");
			Assert.AreEqual(-1, node.Index);

			r1.Nodes.Add(node);
			Assert.AreEqual(1, r1.Nodes.Count);
			Assert.AreEqual(r1, node.Parent);
			Assert.AreEqual(0, node.Index);

			r1.Nodes.Remove(node);
			Assert.AreEqual(0, r1.Nodes.Count);
			Assert.AreEqual(null, node.Parent);
			Assert.AreEqual(-1, node.Index);

			node.Parent = r1;
			Assert.AreEqual(1, r1.Nodes.Count);
			Assert.AreEqual(r1, node.Parent);
			Assert.AreEqual(0, node.Index);

			node.Parent = null;
			Assert.AreEqual(0, r1.Nodes.Count);
			Assert.AreEqual(null, node.Parent);
			Assert.AreEqual(-1, node.Index);


			Node r2 = new Node("");
			node.Parent = r1;

			node.Parent = r2;
			Assert.AreEqual(1, r2.Nodes.Count);
			Assert.AreEqual(0, r1.Nodes.Count);
			Assert.AreEqual(r2, node.Parent);

			r1.Nodes.Add(node);
			Assert.AreEqual(1, r1.Nodes.Count);
			Assert.AreEqual(0, r2.Nodes.Count);
			Assert.AreEqual(r1, node.Parent);



			Node node2 = new Node("");
			r1.Nodes[0] = node2;
			Assert.AreEqual(null, node.Parent);
			Assert.AreEqual(r1, node2.Parent);
		}

		[TestMethod]
		public void IndexTest()
		{
			Node r1 = new Node("");
			Node node0 = new Node("");
			Node node1 = new Node("");
			Node node2 = new Node("");
			Assert.AreEqual(-1, node0.Index);

			r1.Nodes.Add(node0);
			r1.Nodes.Add(node1);
			r1.Nodes.Add(node2);
			CheckNodes(r1);

			r1.Nodes.Insert(1, new Node());
			CheckNodes(r1);

			r1.Nodes.RemoveAt(2);
			CheckNodes(r1);
		}

		private void CheckNodes(Node root)
		{
			for (int i = 0; i < root.Nodes.Count; i++ )
				Assert.AreEqual(i, root.Nodes[i].Index);
		}

		[TestMethod]
		public void ClearTest()
		{
			Node node = new Node("");
			int num = 125000;
			for (int i = 0; i < num; i++)
				node.Nodes.Add(new Node());
			Assert.AreEqual(num, node.Nodes.Count);

			TimeCounter.Start();
			node.Nodes.Clear();
			Console.WriteLine("Clear: {0}", TimeCounter.Finish());

			Assert.AreEqual(0, node.Nodes.Count);
		}


		private int remove, insert;
		[TestMethod]
		public void ModelTest()
		{
			TreeModel model = new TreeModel();
			model.NodesInserted += new EventHandler<TreeModelEventArgs>(model_NodesInserted);
			model.NodesRemoved += new EventHandler<TreeModelEventArgs>(model_NodesRemoved);

			remove = 0;
			insert = 0;
			Node node = new Node("");
			model.Root.Nodes.Add(node);
			model.Root.Nodes.Remove(node);
			Assert.AreEqual(1, remove);
			Assert.AreEqual(1, insert);
		}

		void model_NodesRemoved(object sender, TreeModelEventArgs e)
		{
			remove++;
		}

		void model_NodesInserted(object sender, TreeModelEventArgs e)
		{
			insert++;
		}

	}
}