On Rails

Code coverage for restful actions

If a respond_to block in a restful action is run for one type, rcov wrongly assumes the blocks for the other types are also covered. If you put the code in a seperate function, rcov will correctly detect it if it is not tested.

def new
  @payment = Payment.new(params[:payment])

  respond_to do |format|
    format.html # new.html.erb
    format.xml  { render :xml => @payment }
    format.js {
      this_code_is_not_tested_and_not_detected_by_rcov
    }
  end
end