# File lib/railsbench/railsbenchmark.rb, line 120
  def update_test_session_data(session_data)
    dbman = ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS[:database_manager]
    old_session_data = dbman.new(@session).restore
    new_session_data = old_session_data.merge(session_data || {})
    new_session_data.each{ |k,v| @session[k] = v }
    @session.update
  end