/V2.2/trunk/RI/Desktop/StockTraderRI.Infrastructure.Tests/TreeHelperFixture.cs

//===================================================================================

// Microsoft patterns & practices

// Composite Application Guidance for Windows Presentation Foundation and Silverlight

//===================================================================================

// Copyright (c) Microsoft Corporation.  All rights reserved.

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY

// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

// FITNESS FOR A PARTICULAR PURPOSE.

//===================================================================================

// The example companies, organizations, products, domain names,

// e-mail addresses, logos, people, places, and events depicted

// herein are fictitious.  No association with any real company,

// organization, product, domain name, email address, logo, person,

// places, or events is intended or should be inferred.

//===================================================================================

using System.Windows.Controls;

using Microsoft.VisualStudio.TestTools.UnitTesting;



namespace StockTraderRI.Infrastructure.Tests

{

    [TestClass]

    public class TreeHelperFixture

    {

        [TestMethod]

        public void ShouldFindDirectAncestor()

        {

            ContentControl parent = new ContentControl();

            TextBlock child = new TextBlock();

            parent.Content = child;



            var foundParent = TreeHelper.FindAncestor(child, d => d == parent);



            Assert.IsNotNull(foundParent);

            Assert.AreSame(parent, foundParent);

        }



        [TestMethod]

        public void ShouldFindIndirectAncestor()

        {

            ContentControl grandParent = new ContentControl();

            ContentControl parent = new ContentControl();

            TextBlock child = new TextBlock();

            grandParent.Content = parent;

            parent.Content = child;



            var foundGrandParent = TreeHelper.FindAncestor(child, d => d == grandParent);



            Assert.IsNotNull(foundGrandParent);

            Assert.AreSame(grandParent, foundGrandParent);

        }

    }

}