Hello,
While working with Fluent NHibernate to map my entities, I ran into
this exception when trying to test my mappings with the
PersistenceSpecification:
Test method FluentNHibernateBug.Tests.UnitTest1.TestMethod1 threw
exception: System.InvalidCastException: Unable to cast object of type
'Iesi.Collections.Generic.HashedSet`1[FluentNHibernateBug.Bar]' to
type 'System.Collections.Generic.IList`1[FluentNHibernateBug.Bar]'..
I'm using these entities:
Bar.cs:
namespace FluentNHibernateBug
{
public class Bar
{
public virtual int Id { get; set; }
public virtual string Name { get; set; }
}
}
Foo.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace FluentNHibernateBug.Entities
{
public class Foo
{
public Foo()
{
Bars = new List<Bar>();
}
public virtual int Id { get; set; }
public virtual ICollection<Bar> Bars { get; set; }
}
}
Mappings:
BarMapping.cs:
using FluentNHibernate.Mapping;
namespace FluentNHibernateBug.Mappings
{
public class BarMapping : ClassMap<Bar>
{
public BarMapping()
{
Id(bar => bar.Id);
Map(bar => bar.Name);
}
}
}
FooMapping.cs:
using FluentNHibernate.Mapping;
using FluentNHibernateBug.Entities;
namespace FluentNHibernateBug.Mappings
{
public class FooMapping : ClassMap<Foo>
{
public FooMapping()
{
Id(foo => foo.Id);
HasMany(foo => foo.Bars)
.AsBag();
}
}
}
And the unit test that fails me:
using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using FluentNHibernate.Testing;
using FluentNHibernateBug.Entities;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using NHibernate.Tool.hbm2ddl;
namespace FluentNHibernateBug.Tests
{
[TestClass]
public class UnitTest1
{
[TestMethod]
public void TestMethod1()
{
var configuration = Fluently.Configure()
.Database(SQLiteConfiguration.Standard.InMemory())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<Foo>
())
.BuildConfiguration();
var sessionFactory = configuration.BuildSessionFactory();
var session = sessionFactory.OpenSession();
new SchemaExport(configuration).Execute(true, true, false,
true, session.Connection, null);
var specification = new PersistenceSpecification<Foo>
(session);
var barList = new List<Bar>
{
new Bar{Name = "Bar1"}
};
specification
.CheckList(foo => foo.Bars, barList)
.VerifyTheMappings();
}
}
}
Any ideas?
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