[fluent-nhib] ArgumentOutOfRangeException : Index was out of range.

[Jan Van Ryswyck]

Hi,

I'm getting this weird ArgumentOutOfRangeException whenever I use the
PersitenceSpecification class for verifying an entity that has a
reference to a value object.

    public class CatalogItem : DomainEntity
    {
        internal virtual Manufacturer Manufacturer { get; private
set; }
        internal virtual String Name { get; private set; }

        protected CatalogItem()
        {}

        public CatalogItem(String name, String manufacturer)
        {
            Name = name;
            Manufacturer = new Manufacturer(manufacturer);
        }
    }

    public class CatalogItemMapping : ClassMap<CatalogItem>
    {
        public CatalogItemMapping()
        {
            Id(catalogItem => catalogItem.Id);

            Component<Manufacturer>(category => category.Manufacturer,
                                    m => m.Map(manufacturer =>
manufacturer.Name));

            Map(catalogItem => catalogItem.Name);
            Map(Reveal.Property<CatalogItem>("Price"));
        }
    }

    [TestFixture]
    public class When_verifying_the_class_mapping_of_a_catalog_item
        : NHibernateSpecification
    {
        [Test]
        public void Then_a_catalog_object_should_be_persistable()
        {
            new PersistenceSpecification<CatalogItem>(Session)
                .VerifyTheMappings();
        }
    }

    [TestFixture]
    public class NHibernateSpecification
        : Specification
    {
        protected ISession Session { get; private set; }

        protected override void Establish_context()
        {
            var configuration = new SQLiteConfiguration()
                .InMemory()
                .ShowSql()
                .ToProperties();

            var sessionSource = new SessionSource(configuration, new
RetailerPersistenceModel());
            Session = sessionSource.CreateSession();

            sessionSource.BuildSchema(Session);
            ProvideInitialData(Session);

            Session.Flush();
            Session.Clear();
        }

        protected override void Dispose_context()
        {
            Session.Dispose();
            Session = null;
        }

        protected virtual void ProvideInitialData(ISession session)
        {}
    }

Here's the error I'm getting:

TestCase 'Then_a_catalog_object_should_be_persistable'
not executed: System.ArgumentOutOfRangeException : Index was out of
range. Must be non-negative and less than the size of the collection.
Parameter name: index
        at System.ThrowHelper.ThrowArgumentOutOfRangeException
(ExceptionArgument argument, ExceptionResource resource)
        at System.ThrowHelper.ThrowArgumentOutOfRangeException()
        at System.Collections.Generic.List`1.get_Item(Int32 index)
        at System.Data.SQLite.SQLiteParameterCollection.GetParameter(Int32
index)
        at
System.Data.Common.DbParameterCollection.System.Collections.IList.get_Item
(Int32 index)
        at NHibernate.Type.GuidType.Set(IDbCommand cmd, Object value, Int32
index)
        at NHibernate.Type.NullableType.NullSafeSet(IDbCommand cmd, Object
value, Int32 index)
        at NHibernate.Type.NullableType.NullSafeSet(IDbCommand st, Object
value, Int32 index, ISessionImplementor session)
        at NHibernate.Persister.Entity.AbstractEntityPersister.Dehydrate
(Object id, Object[] fields, Object rowId, Boolean[] includeProperty,
Boolean[][] includeColumns, Int32 table, IDbCommand statement,
ISessionImplementor session, Int32 index)
        at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object
id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql,
Object obj, ISessionImplementor session)
        at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object
id, Object[] fields, Object obj, ISessionImplementor session)
        at NHibernate.Action.EntityInsertAction.Execute()
        at NHibernate.Engine.ActionQueue.Execute(IExecutable executable)
        at NHibernate.Engine.ActionQueue.ExecuteActions(IList list)
        at NHibernate.Engine.ActionQueue.ExecuteActions()
        at
NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions
(IEventSource session)
        at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush
(FlushEvent event)
        at NHibernate.Impl.SessionImpl.Flush()
        at NHibernate.Transaction.AdoTransaction.Commit()
        d:\Builds\FluentNH\src\FluentNHibernate\Testing
\PersistenceSpecification.cs(127,0): at
FluentNHibernate.Testing.PersistenceSpecification`1.TransactionalSave
(Object propertyValue)
        d:\Builds\FluentNH\src\FluentNHibernate\Testing
\PersistenceSpecification.cs(105,0): at
FluentNHibernate.Testing.PersistenceSpecification`1.VerifyTheMappings
()
        C:\Source\SupplyChain\Tests\Retailer.IntegrationTests\Mappings
\CatalogItemMappingSpecifications.cs(14,0): at
SupplyChain.Retailer.IntegrationTests.Mappings.When_verifying_the_class_mapping_of_a_catalog_item.Then_a_catalog_object_should_be_persistable
()

Sorry for the long post, but this one got me busy for a couple of
hours now. This might not be caused by FNH as I found this JIRA ticket
of NH itself that mentions something similar:

http://forum.hibernate.org/viewtopic.php?p=2395409

I'm still hoping that I'm doing something wrong in my code :-). Any
thought?

Thanks in advance




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