def run_desktop_mochitests(parser, options):
    # create our Marionette instance
    marionette_args = {}
    if options.marionette:
        host, port = options.marionette.split(':')
        marionette_args['host'] = host
        marionette_args['port'] = int(port)
    mochitest = B2GDesktopMochitest(marionette_args, options.profile_data_dir)

    # add a -bin suffix if b2g-bin exists, but just b2g was specified
    if options.app[-4:] != '-bin':
        if os.path.isfile("%s-bin" % options.app):
            options.app = "%s-bin" % options.app

    options = MochitestOptions.verifyOptions(parser, options, mochitest)
    if options == None:
        sys.exit(1)

    if options.desktop and not options.profile:
        raise Exception("must specify --profile when specifying --desktop")

    options.browserArgs += ['-marionette']

    retVal = mochitest.runTests(options, onLaunch=mochitest.startTests)
    mochitest.message_logger.finish()

    sys.exit(retVal)

def main():
  automation = Automation()
  mochitest = Mochitest(automation)
  parser = MochitestOptions(automation)
  options, args = parser.parse_args()

  options = parser.verifyOptions(options, mochitest)
  if options == None:
    sys.exit(1)

  options.utilityPath = mochitest.getFullPath(options.utilityPath)
  options.certPath = mochitest.getFullPath(options.certPath)
  if options.symbolsPath and not isURL(options.symbolsPath):
    options.symbolsPath = mochitest.getFullPath(options.symbolsPath)

  automation.setServerInfo(options.webServer,
                           options.httpPort,
                           options.sslPort,
                           options.webSocketPort)
  sys.exit(mochitest.runTests(options))

    def verifyOptions(self, options, mochitest):
        # since we are reusing verifyOptions, it will exit if App is not found
        temp = options.app
        options.app = __file__
        tempPort = options.httpPort
        tempSSL = options.sslPort
        tempIP = options.webServer
        options = MochitestOptions.verifyOptions(self, options, mochitest)
        options.webServer = tempIP
        options.app = temp
        options.sslPort = tempSSL
        options.httpPort = tempPort

        return options 

    def verifyOptions(self, options, mochitest):
        # since we are reusing verifyOptions, it will exit if App is not found
        temp = options.app
        options.app = __file__
        tempPort = options.httpPort
        tempSSL = options.sslPort
        tempIP = options.webServer
        # We are going to override this option later anyway, just pretend
        # like it's not set for verification purposes.
        options.dumpOutputDirectory = None
        options = MochitestOptions.verifyOptions(self, options, mochitest)
        options.webServer = tempIP
        options.app = temp
        options.sslPort = tempSSL
        options.httpPort = tempPort

        return options

    def __init__(self, automation, **kwargs):
        defaults = {}
        MochitestOptions.__init__(self, automation)

        self.add_option("--remote-app-path", action="store",
                    type = "string", dest = "remoteAppPath",
                    help = "Path to remote executable relative to device root using only forward slashes. Either this or app must be specified but not both")
        defaults["remoteAppPath"] = None

        self.add_option("--deviceIP", action="store",
                    type = "string", dest = "deviceIP",
                    help = "ip address of remote device to test")
        defaults["deviceIP"] = None

        self.add_option("--dm_trans", action="store",
                    type = "string", dest = "dm_trans",
                    help = "the transport to use to communicate with device: [adb|sut]; default=sut")
        defaults["dm_trans"] = "sut"

        self.add_option("--devicePort", action="store",
                    type = "string", dest = "devicePort",
                    help = "port of remote device to test")
        defaults["devicePort"] = 20701

        self.add_option("--remote-product-name", action="store",
                    type = "string", dest = "remoteProductName",
                    help = "The executable's name of remote product to test - either fennec or firefox, defaults to fennec")
        defaults["remoteProductName"] = "fennec"

        self.add_option("--remote-logfile", action="store",
                    type = "string", dest = "remoteLogFile",
                    help = "Name of log file on the device relative to the device root.  PLEASE ONLY USE A FILENAME.")
        defaults["remoteLogFile"] = None

        self.add_option("--remote-webserver", action = "store",
                    type = "string", dest = "remoteWebServer",
                    help = "ip address where the remote web server is hosted at")
        defaults["remoteWebServer"] = None

        self.add_option("--http-port", action = "store",
                    type = "string", dest = "httpPort",
                    help = "http port of the remote web server")
        defaults["httpPort"] = automation.DEFAULT_HTTP_PORT

        self.add_option("--ssl-port", action = "store",
                    type = "string", dest = "sslPort",
                    help = "ssl port of the remote web server")
        defaults["sslPort"] = automation.DEFAULT_SSL_PORT

        self.add_option("--pidfile", action = "store",
                    type = "string", dest = "pidFile",
                    help = "name of the pidfile to generate")
        defaults["pidFile"] = ""

        self.add_option("--robocop-ini", action = "store",
                    type = "string", dest = "robocopIni",
                    help = "name of the .ini file containing the list of tests to run")
        defaults["robocopIni"] = ""

        self.add_option("--robocop", action = "store",
                    type = "string", dest = "robocop",
                    help = "name of the .ini file containing the list of tests to run. [DEPRECATED- please use --robocop-ini")
        defaults["robocop"] = ""

        self.add_option("--robocop-apk", action = "store",
                    type = "string", dest = "robocopApk",
                    help = "name of the Robocop APK to use for ADB test running")
        defaults["robocopApk"] = ""

        self.add_option("--robocop-path", action = "store",
                    type = "string", dest = "robocopPath",
                    help = "Path to the folder where robocop.apk is located at.  Primarily used for ADB test running. [DEPRECATED- please use --robocop-apk]")
        defaults["robocopPath"] = ""

        self.add_option("--robocop-ids", action = "store",
                    type = "string", dest = "robocopIds",
                    help = "name of the file containing the view ID map (fennec_ids.txt)")
        defaults["robocopIds"] = ""

        self.add_option("--remoteTestRoot", action = "store",
                    type = "string", dest = "remoteTestRoot",
                    help = "remote directory to use as test root (eg. /mnt/sdcard/tests or /data/local/tests)")
        defaults["remoteTestRoot"] = None

        defaults["logFile"] = "mochitest.log"
        defaults["autorun"] = True
        defaults["closeWhenDone"] = True
        defaults["testPath"] = ""
        defaults["app"] = None

        self.set_defaults(**defaults)