| # Copyright (c) 2012 The Chromium 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 copy |
| import dbus |
| import logging |
| import os |
| import time |
| |
| from chromeos.power_strip import PowerStrip |
| import pyauto |
| import pyauto_errors |
| |
| class PyNetworkUITest(pyauto.PyUITest): |
| """A subclass of PyUITest for Chrome OS network tests. |
| |
| A subclass of PyUITest that automatically sets the flimflam |
| priorities to put wifi connections first before starting tests. |
| This is for convenience when writing wifi tests. |
| """ |
| _ROUTER_CONFIG_FILE = os.path.join(pyauto.PyUITest.DataDir(), |
| 'pyauto_private', 'chromeos', 'network', |
| 'wifi_testbed_config') |
| _FLIMFLAM_PATH = 'org.chromium.flimflam' |
| |
| def setUp(self): |
| self.CleanupFlimflamDirsOnChromeOS() |
| # Move ethernet to the end of the flimflam priority list, |
| # effectively hiding any ssh connections that the |
| # test harness might be using and putting wifi ahead. |
| self._PushServiceOrder('wifi,ethernet') |
| self._ParseDefaultRoutingTable() |
| pyauto.PyUITest.setUp(self) |
| |
| def tearDown(self): |
| pyauto.PyUITest.tearDown(self) |
| self._PopServiceOrder() |
| # Remove the route entry for the power strip. |
| if hasattr(self, 'ps_route_entry'): |
| os.system('route del -net %(ipaddress)s gateway %(gateway)s netmask ' |
| '%(netmask)s dev %(iface)s' % self.ps_route_entry) |
| |
| def _GetFlimflamManager(self): |
| _proxy = dbus.SystemBus().get_object(self._FLIMFLAM_PATH, '/') |
| return dbus.Interface(_proxy, self._FLIMFLAM_PATH + '.Manager') |
| |
| def _ParseDefaultRoutingTable(self): |
| """Creates and stores a dictionary of the default routing paths.""" |
| route_table_headers = ['destination', 'gateway', 'genmask', 'flags', |
| 'metric', 'ref', 'use', 'iface'] |
| routes = os.popen('route -n | egrep "^0.0.0.0"').read() |
| routes = [interface.split() for interface in routes.split('\n')][:-1] |
| self.default_routes = {} |
| for iface in routes: |
| self.default_routes[iface[-1]] = dict(zip(route_table_headers, iface)) |
| |
| def _SetServiceOrder(self, service_order): |
| self._GetFlimflamManager().SetServiceOrder(service_order) |
| # Flimflam throws a dbus exception if device is already disabled. This |
| # is not an error. |
| try: |
| self._GetFlimflamManager().DisableTechnology('wifi') |
| except dbus.DBusException as e: |
| if 'org.chromium.flimflam.Error.AlreadyDisabled' not in str(e): |
| raise e |
| self._GetFlimflamManager().EnableTechnology('wifi') |
| |
| def _PushServiceOrder(self, service_order): |
| self._old_service_order = self._GetFlimflamManager().GetServiceOrder() |
| self._SetServiceOrder(service_order) |
| service_order = service_order.split(',') |
| |
| # Verify services that are present in both the service_order |
| # we set and the one retrieved from device are in the correct order. |
| set_service_order = self._GetFlimflamManager().GetServiceOrder().split(',') |
| common_service = set(service_order) & set(set_service_order) |
| |
| service_order = [s for s in service_order if s in common_service] |
| set_service_order = [s for s in set_service_order if s in common_service] |
| |
| assert service_order == set_service_order, \ |
| 'Flimflam service order not set properly. %s != %s' % \ |
| (service_order, set_service_order) |
| |
| def _PopServiceOrder(self): |
| self._SetServiceOrder(self._old_service_order) |
| |
| # Verify services that are present in both the service_order |
| # we set and the one retrieved from device are in the correct order. |
| old_service_order = self._old_service_order.split(',') |
| set_service_order = self._GetFlimflamManager().GetServiceOrder().split(',') |
| common_service = set(old_service_order) & set(set_service_order) |
| |
| old_service_order = [s for s in old_service_order if s in common_service] |
| set_service_order = [s for s in set_service_order if s in common_service] |
| |
| assert old_service_order == set_service_order, \ |
| 'Flimflam service order not set properly. %s != %s' % \ |
| (old_service_order, set_service_order) |