You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_rdoc_parser_rd.rb
    path of file: ./repos/ruby/test/rdoc
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require_relative 'helper'

class TestRDocParserRd < RDoc::TestCase

  def setup
    super

    @RP = RDoc::Parser

    @tempfile = Tempfile.new self.class.name
    filename = @tempfile.path

    @
    
  def test_scan
    parser = util_parser 'it ((*really*)) works'

    expected = doc(para('it <em>really</em> works'))
    expected.file = @top_level

    parser.scan

    assert_equal expected, @top_level.comment.parse
  end

  def util_parser content
    RDoc::Parser::RD.new @top_level, @fn, content, @options, @stats
  end

end