NoMethodError on class

gistfile1.rb

class FoosController < ApplicationController
  # GET /foos
  # GET /foos.xml
  def index
    @foos = Foo.all
    Foo.bad_method #should raise NoMethodError
    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @foos }
    end
  end
end