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: rubocop_test.rb
    path of file: ./repos/standard/test/standard/runners
    
    the code of the file until where you have to start completion: require_relative "../../test_helper"

require "standard/runners/rubocop"
require "fixture/runner/bad_cop"

class Standar
    
  def test_empty_output_on_quiet_success
    fake_out, fake_err = do_with_fake_io do
      @subject.call(create_config)
    end

    assert_equal "", fake_out.string
    assert_equal "", fake_err.string
  end