/source/library/Interlace.Tests/Utilities/TestNotifyRelatedEntityChanged.cs

#region Using Directives and Copyright Notice



// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd

// All rights reserved.

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//       derived from this software without specific prior written permission.

// 

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Text;



using EntrustDal.EntityClasses;



using MbUnit.Framework;



using Interlace.Utilities;



#endregion



namespace Interlace.Tests.Utilities

{

    [TestFixture]

    class TestNotifyRelatedEntityChanged

    {

        [Test]

        public void Go()

        {

            UserEntity user = new UserEntity();



            int eventCalledCount = 0;

            UserCertificateEntity eventCalledCertificate = null;



            user.PropertyChanged += new PropertyChangedEventHandler(

                delegate(object sender, PropertyChangedEventArgs e)

                {

                    if (e.PropertyName == "Certificate")

                    {

                        eventCalledCount++;



                        // Save the certificate to ensure that at the time of the event the

                        // property has been updated:

                        eventCalledCertificate = user.Certificate;

                    }

                });



            // Try setting the certificate:

            user.Certificate = new UserCertificateEntity();



            Assert.AreEqual(1, eventCalledCount);

            Assert.IsTrue(object.ReferenceEquals(user.Certificate, eventCalledCertificate));



            // Try setting a different certificate:

            user.Certificate = new UserCertificateEntity();



            Assert.AreEqual(2, eventCalledCount);

            Assert.IsTrue(object.ReferenceEquals(user.Certificate, eventCalledCertificate));



            // Try clearing the certificate:

            user.Certificate = null;



            Assert.AreEqual(3, eventCalledCount);

            Assert.IsNull(eventCalledCertificate);

        }

    }

}