  def setup
    @namespace = "theplaylist"
    @store  = Redis::Store.new :namespace => @namespace, :marshalling => false # TODO remove mashalling option
    @client = @store.instance_variable_get(:@client)
    @rabbit = "bunny"
    @default_store = Redis::Store.new
    @other_namespace = 'other'
    @other_store = Redis::Store.new :namespace => @other_namespace
  end
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.