# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
from autotest_lib.client.cros import backchannel, network

from autotest_lib.client.cros.cellular import cellular, cell_tools
from autotest_lib.client.cros.cellular import emulator_config, labconfig

import logging, re, socket, string, time, urllib2

from autotest_lib.client.cros import flimflam_test_path
import flimflam, routing, mm

# Cellular smoke test and documentation for writing cell tests

class cellular_Smoke(test.test):
  version = 1

  # The autotest infrastructure calls run_once.  The control file
  # fetches the JSON lab config and passes it in as a python object

  def run_once(self, config):
    # backchannel.Backchannel sets up an ethernet connection to the
    # DUT that has restrictive routes is outside of flimflam's
    # control.  This makes the tests resilient to flimflam restarts
    # and helps to ensure that the test is actually sending traffic on
    # the cellular link
    with backchannel.Backchannel():
      flim = flimflam.FlimFlam()

      # This shuts down other network devices on the host.  Again,
      # this is to ensure that test traffic goes over the modem
      with cell_tools.OtherDeviceShutdownContext('cellular', flim):

        bs, verifier = emulator_config.GetDefaultBasestation(
            config, cellular.Technology.WCDMA)

        network.ResetAllModems(flim)

        # TODO(rochberg) Need to figure out what isn't settling here.
        # Going to wait 'til after ResetAllModems changes land.
        time.sleep(10)

        (service, _) = cell_tools.ConnectToCellular(flim, verifier)
        cell_tools.CheckHttpConnectivity(config)


        cell_tools.DisconnectFromCellularService(bs, flim, service)