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_path_support.rb
    path of file: ./repos/ruby/test/rubygems
    
    the code of the file until where you have to start completion: # frozen_string_literal: tr
    
  def test_initialize_path
    Gem.stub(:path_separator, File::PATH_SEPARATOR) do
      ps = Gem::PathSupport.new ENV.to_hash.merge("GEM_PATH" => %W[#{@tempdir}/foo #{@tempdir}/bar].join(Gem.path_separator))

      assert_equal ENV["GEM_HOME"], ps.home

      expected = [
        File.join(@tempdir, "foo"),
        File.join(@tempdir, "bar"),
        ENV["GEM_HOME"],
      ]

      assert_equal expected, ps.path
    end
  end