Build Fluent nHibernate SQLite configuration in memory

gistfile1.cs

    /// <summary>
    /// Builds the configuration.
    /// </summary>
    /// <returns>nHibernate SQLite configuration</returns>
    protected override Configuration BuildConfiguration()
    {
        CleanUpDbFileIfRequired();

        return Fluently.Configure()
                .Database(SQLiteConfiguration.Standard.InMemory()
                            .AutoQuoteAllKeywords())
                .Mappings(m => m.FluentMappings
                    .AddFromAssembly(typeof(FluentAbstract).Assembly))
                .ExposeConfiguration(x => x.SetProperty(NHibernate.Cfg.Environment.ReleaseConnections, "on_close"))
                .CurrentSessionContext<ThreadStaticSessionContext>()
                .BuildConfiguration();
    }