SecondLevelCacheTest.cs

using System;
using System.Collections;
using System.Data;
using System.Diagnostics;
using System.Text;
using NHibernate.Cache;
using NHibernate.Test.SecondLevelCacheTests;
using NUnit.Framework;

namespace NHibernate.Test.SecondLevelCacheTests
{
    [TestFixture]
    public class SecondLevelCacheTest : TestCase
    {
        protected override string MappingsAssembly
        {
            get
            {
                return "NHibernate.Test";
            }
        }
        protected override IList Mappings
        {
            get { return new string[] { "SecondLevelCacheTest.Item.hbm.xml" }; }
        }

        protected override void OnSetUp()
        {
            cfg.Properties["hibernate.cache.provider_class"] = typeof(HashtableCacheProvider).AssemblyQualifiedName;
            sessions = cfg.BuildSessionFactory();

			using (ISession session = OpenSession())
			{
				Item item = new Item();
				item.Id = 1;
				session.Save(item);
				for (int i = 0; i < 4; i++)
				{
					Item child = new Item();
					child.Id = i + 2;
					session.Save(child);
					item.Children.Add(child);					
					
				}
				session.Flush();
			}

			sessions.Evict(typeof(Item));
			sessions.EvictCollection(typeof(Item).FullName + ".Children");
        }

		protected override void OnTearDown()
		{
			using (ISession session = OpenSession())
			{
				session.Delete("from Item");//cleaning up
				session.Flush();
			} 
		}

        [Test]
        public void DeleteItemFromCollectionThatIsInTheSecondLevelCache()
        {
            
            using (ISession session = OpenSession())
            {
                Item item = (Item)session.Load(typeof(Item), 1);
                Assert.IsTrue(item.Children.Count == 4); // just force it into the second level cache here
            }
            int childId = -1;
            using (ISession session = OpenSession())
            {
                Item item = (Item)session.Load(typeof(Item), 1);
                Item child = (Item)item.Children[0];
                childId = child.Id;
                session.Delete(child);
            	item.Children.Remove(child);
                session.Flush();
            }

            using (ISession session = OpenSession())
            {
                Item item = (Item)session.Load(typeof(Item), 1);
                Assert.AreEqual(3, item.Children.Count );
                foreach (Item child in item.Children)
                {
                    NHibernateUtil.Initialize(child);
                    Assert.IsFalse(child.Id == childId);
                }
            }
        }

    	[Test]
    	public void InsertItemToCollectionOnTheSecondLevelCache()
    	{
			using (ISession session = OpenSession())
			{
				Item item = (Item)session.Load(typeof(Item), 1);
				Item child = new Item();
				child.Id = 6;
				item.Children.Add(child);
				session.Save(child);
				session.Flush();
			}

			using (ISession session = OpenSession())
			{
				Item item = (Item)session.Load(typeof(Item), 1);
				int count = item.Children.Count;
				Assert.AreEqual(5, count);
			}
		
    	}
    }
}