   if unused_count > 0
     console.log "#{unused_count} instructions have yet to be tested."
 
-if require.main == module
-  {argv} = optimist
-  optimist.usage '''
-  Usage: $0
-  Optional flags:
-    --print-usage
-    -q, --quiet
-    -h, --help
-  '''
-  return optimist.showHelp() if argv.help? or argv.h?
-  print_usage = argv['print-usage']
-  quiet = argv.q? or argv.quiet?
-
-  op_stats = setup_opcode_stats()
-
+run_all_tests = (quiet) ->
   # set up the classpath and get the test dir
   doppio_dir = path.resolve __dirname, '..'
   test_dir = path.resolve doppio_dir, 'test'

    c = "test/#{path.basename(file, '.java')}"
    console.log "running #{c}..." unless quiet
    jvm.run_class(rs, c, [])

  if print_usage
    print_opcode_usage op_stats
  else
    print_unused_opcodes op_stats

{RuntimeState} = require '../src/runtime'
natives = require '../src/natives'

setup_opcode_stats = ->
  # monkeypatch opcode execution
  op_stats = {}
  for num, op of opcodes.opcodes
