testem.js

#!/usr/bin/env node

var log = require('npmlog')
var program = require('commander')
var progOptions = program
var Config = require('./lib/config')
var Api = require('./lib/api')
var appMode = 'dev'
  
program
  .version(require(__dirname + '/package').version)
  .usage('[options]')
  .option('-f, --file [file]', 'config file - defaults to testem.json or testem.yml')
  .option('-p, --port [num]', 'server port - defaults to 7357', Number)
  .option('--host [hostname]', 'host name - defaults to localhost', String)
  .option('-l, --launch [list]', 'list of launchers to launch(comma separated)')
  .option('-s, --skip [list]', 'list of launchers to skip(comma separated)')
  .option('-d, --debug', 'output debug to debug log - testem.log')
  .option('-t, --test_page [page]', 'the html page to drive the tests')
  .option('-g, --growl', 'turn on growl notifications')


program
  .command('launchers')
  .description('Print the list of available launchers (browsers & process launchers)')
  .action(act(function(env){
    env.__proto__ = program
    progOptions = env
    appMode = 'launchers'
  }))

program
  .command('ci')
  .description('Continuous integration mode')
  .option('-T, --timeout [sec]', 'timeout a browser after [sec] seconds', null)
  .option('-P, --parallel [num]', 'number of browsers to run in parallel, defaults to 1', Number)
  .option('-b, --bail_on_uncaught_error', 'Bail on any uncaught errors')
  .option('-R, --reporter [reporter]', 'Test reporter to use [tap|dot|xunit]', 'tap')
  .action(act(function(env){
    env.__proto__ = program
    progOptions = env
    appMode = 'ci'
  }))

program
  .command('server')
  .description('Run just the server')
  .action(act(function(env){
    env.__proto__ = program
    progOptions = env
    appMode = 'server'
  }))


program.on('--help', function(){
  console.log('  Keyboard Controls (in dev mode):\n')
  console.log('    ENTER                  run the tests')
  console.log('    q                      quit')
  console.log('    LEFT ARROW             move to the next browser tab on the left')
  console.log('    RIGHT ARROW            move to the next browser tab on the right')
  console.log('    TAB                    switch between top and bottom panel (split mode only)')
  console.log('    UP ARROW               scroll up in the target text panel')
  console.log('    DOWN ARROW             scroll down in the target text panel')
  console.log('    SPACE                  page down in the target text panel')
  console.log('    b                      page up in the target text panel')
  console.log('    d                      half a page down in the target text panel')
  console.log('    u                      half a page up in the target text panel')
  console.log()
})


main()
function main(){
  program.parse(process.argv)

  var config = new Config(appMode, progOptions)
  if (appMode === 'launchers'){
    config.read(function(){
      config.printLauncherInfo()
    })
  }else{
    var api = new Api()
    if (appMode === 'ci'){
      api.startCI(progOptions)
    }else if (appMode === 'dev'){
      api.startDev(progOptions)
    }else if (appMode === 'server'){
      api.startServer(progOptions)
    }
  }
}

// this is to workaround the weird behavior in command where
// if you provide additional command line arguments that aren't
// options, it goes in as a string as the 1st arguments of the 
// "action" callback, we don't want this
function act(fun){
  return function(){
    var options = arguments[arguments.length - 1]
    fun(options)
  }
}