client/site_tests/platform_DebugDaemonGetModemStatus/platform_DebugDaemonGetModemStatus.py

# Copyright (c) 2012 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.

import dbus
import json

from autotest_lib.client.bin import test
from autotest_lib.client.common_lib import error

class platform_DebugDaemonGetModemStatus(test.test):
    version = 1

    def run_once(self, *args, **kwargs):
        bus = dbus.SystemBus()
        proxy = bus.get_object('org.chromium.debugd', '/org/chromium/debugd')
        self.iface = dbus.Interface(proxy,
                                    dbus_interface='org.chromium.debugd')
        result = self.iface.GetModemStatus()
        modems = json.loads(result)
        ok = False
        for m in modems:
            if 'path' in m:
                print 'Found modem: %s' % m['path']
                ok = True
        if not ok:
            raise error.TestFail('No modems found: %s' % result)