Writing NHibernate Level 2 Cache Usage Tests

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NHibernate;
using NHibernate.Burrow;
using Domain;

namespace Tests
{
  /// <summary>
  /// NHibernate helper class. Intended for SessionFactory and Session management
  /// helper functionality.
  /// </summary>
  public static class NHibernateHelper
  {

    public static void EvictSecondLevelCache()
    {
      BurrowFramework bf = new BurrowFramework();

      ISessionFactory sFactory = bf.GetSessionFactory(typeof(Parent));
      sFactory.EvictQueries();
      IDictionary classMetadata = sFactory.GetAllClassMetadata();
      foreach (Type t in classMetadata.Keys)
      {
        sFactory.Evict(t);
      }

      IDictionary collectionMetadata = sFactory.GetAllCollectionMetadata();
      foreach (string role in collectionMetadata.Keys)
      {
        sFactory.EvictCollection(role);
      }
    }

    public static void EvictSecondLevelQueryCache(string region)
    {
      BurrowFramework bf = new BurrowFramework();

      ISessionFactory sFactory = bf.GetSessionFactory(typeof(Parent));
      if (String.IsNullOrEmpty(region))
        sFactory.EvictQueries();
      else
        sFactory.EvictQueries(region);
    }

    public static void EvictSecondLevelQueryCache()
    {
      EvictSecondLevelQueryCache(String.Empty);
    }
  }
}