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

class TestGemGemRunner < Gem::TestCase
  def setup
    @orig_gem_home = ENV["GEM
    
  def teardown
    super

    Gem::Command.build_args = @orig_args
    Gem::Command.specific_extra_args_hash = @orig_specific_extra_args
    Gem::Command.extra_args = @orig_extra_args

    ENV["GEM_HOME"] = @orig_gem_home
  end