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.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/ruby/basictest
    
    the code of the file until where you have to start completion: #! /usr/bin/env ruby
# -*- coding: us-ascii -*-

$testnum=0
$ntest=0
$failed = 0
class Progress
  def initialize
    @color = nil
    @tty = nil
    @quiet = nil
    @verbose = nil
    ARGV.each do |arg|
      case arg
      when /\A--color(?:=(?:always|(auto)|(never)|(.*)))?\z/
        warn "unknown --color a
    
  def initialize
    @color = nil
    @tty = nil
    @quiet = nil
    @verbose = nil
    ARGV.each do |arg|
      case arg
      when /\A--color(?:=(?:always|(auto)|(never)|(.*)))?\z/
        warn "unknown --color argument: #$3" if $3
        @color = $1 ? nil : !$2
      when /\A--tty(=(?:yes|(no)|(.*)))?\z/
        warn "unknown --tty argument: #$3" if $3
        @tty = !$1 || !$2
        true
      when /\A-(q|-quiet)\z/
        @quiet = true
      when /\A-(v|-verbose)\z/
        @verbose = true
      end
    end