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_rdoc.rb
    path of file: ./repos/truffleruby/test/mri/tests/rdoc
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require_relative 'helper'

class TestRDocRDoc < RDoc::TestCase

  def setup
    super

    @rdoc = RDoc::RDoc.new
    @rdoc.options = RDoc::Options.new

    @stats = RDoc::Stats.new @store, 0, 0
    @rdoc.instance_variable_set :@stats, @stats
  end

  def test_document # functional test
    options = RDoc::Options.new
    options.files = [File.expand_path('../xref_data.rb', 
    
  def test_document # functional test
    options = RDoc::Options.new
    options.files = [File.expand_path('../xref_data.rb', __FILE__)]
    options.setup_generator 'ri'
    options.main_page = 'MAIN_PAGE.rdoc'
    options.root      = Pathname File.expand_path('..', __FILE__)
    options.title     = 'title'

    rdoc = RDoc::RDoc.new

    temp_dir do
      options.op_dir = 'ri'

      capture_output do
        rdoc.document options
      end

      assert File.directory? 'ri'
      assert_equal rdoc, rdoc.store.rdoc
    end

    store = rdoc.store

    assert_equal 'MAIN_PAGE.rdoc', store.main
    assert_equal 'title',          store.title
  end