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_digest.rb
    path of file: ./repos/jruby/test/mri/digest
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
# $RoughId: test.rb,v 1.4 2001/07/13 15:38:27 knu Exp $
# $Id$

require 'test/unit'
require 'tempfile'

require 'digest'
%w[digest/md5 digest/rmd160 digest/sha1 digest/sha2 digest/bubblebabble].each do |lib|
  begin
    require lib
  rescue Load
    
    def test_race_mixed
      assert_separately(['-rdigest', "-I#{File.dirname(__FILE__)}"], <<-"end;")
        assert_nothing_raised {
          t = Thread.start {
            sleep #{ EnvUtil.apply_timeout_scale(0.1) }
            Thread.current.report_on_exception = false
            Digest::Foo.new
          }
          Digest(:Foo).new
          begin
            t.join
          rescue NoMethodError, NameError
            # NoMethodError is highly likely; NameError is listed just in case
          end