/V4/PrismLibrary/Desktop/Prism.Tests/Regions/SingleActiveRegionFixture.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 Microsoft.Practices.Prism.Regions;

using Microsoft.VisualStudio.TestTools.UnitTesting;



namespace Microsoft.Practices.Prism.Tests.Regions

{

    [TestClass]

    public class SingleActiveRegionFixture

    {

        [TestMethod]

        public void ActivatingNewViewDeactivatesCurrent()

        {

            IRegion region = new SingleActiveRegion();

            var view = new object();

            region.Add(view);

            region.Activate(view);



            Assert.IsTrue(region.ActiveViews.Contains(view));



            var view2 = new object();

            region.Add(view2);

            region.Activate(view2);



            Assert.IsFalse(region.ActiveViews.Contains(view));

            Assert.IsTrue(region.ActiveViews.Contains(view2));

        }

    }

}