Writing NHibernate Level 2 Cache Usage Tests

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Domain
{
  public class CompositeId
  {
    public int Id1 { get; internal set; }
    public int Id2 { get; internal set; }
    public CompositeId(int id1, int id2)
    {
      Id1 = id1;
      Id2 = id2;
    }
    
    internal CompositeId(){}

    public override bool Equals(object obj)
    {
      if (obj == null || !(obj is CompositeId))
        return false;

      CompositeId inObj = obj as CompositeId;
      return CompositeId.AreEqual(this, inObj);
    }

    public override int GetHashCode()
    {
      int hash = 7;
      hash = 3 * hash + Id1;
      hash = 3 * hash + Id2;
      return hash;
    }

    public static bool operator ==(CompositeId t1, CompositeId t2)
    {
      return CompositeId.AreEqual(t1, t2);
    }

    public static bool operator !=(CompositeId t1, CompositeId t2)
    {
      return !CompositeId.AreEqual(t1, t2);
    }

    private static bool AreEqual(CompositeId t1, CompositeId t2)
    {
      object objt1 = t1;
      object objt2 = t2;

      return (objt1 == null && objt2 == null) || (objt1 != null && objt2 != null && (t1.Id1 == t2.Id1 && t1.Id2 == t2.Id2));
    }
  }

  public class CompositeEntity
  {
    public virtual CompositeId Id { get; internal set; }
    public virtual string Data { get; set; }
    
    public CompositeEntity(int id1, int id2)
    {
      Id = new CompositeId(id1, id2);
    }

    public CompositeEntity(CompositeId id)
    {
      Id = id;
    }

    internal CompositeEntity()
    {
    
    }

  }


}