| # 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 logging |
| import time |
| |
| from autotest_lib.client.bin import test |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros.networking import shill_context |
| from autotest_lib.client.cros.networking import shill_proxy |
| |
| |
| class cellular_StressEnable(test.test): |
| """ |
| Stress-tests enabling and disabling a technology at short intervals. |
| |
| """ |
| version = 1 |
| |
| okerrors = [ |
| shill_proxy.ShillProxy.ERROR_IN_PROGRESS |
| ] |
| |
| def _enable_device(self, enable): |
| try: |
| timeout = shill_proxy.ShillProxy.DEVICE_ENABLE_DISABLE_TIMEOUT |
| if enable: |
| self.device.Enable(timeout=timeout) |
| else: |
| self.device.Disable(timeout=timeout) |
| except dbus.exceptions.DBusException, err: |
| if err.get_dbus_name() in cellular_StressEnable.okerrors: |
| return |
| raise error.TestFail(err) |
| |
| |
| def _test(self, settle): |
| self._enable_device(False) |
| time.sleep(settle) |
| self._enable_device(True) |
| time.sleep(settle) |
| |
| |
| def run_once(self, test_env, cycles=3, min=15, max=25): |
| with test_env, shill_context.ServiceAutoConnectContext( |
| test_env.shill.wait_for_cellular_service_object, False): |
| self.device = test_env.shill.find_cellular_device_object() |
| for t in xrange(max, min, -1): |
| for n in xrange(cycles): |
| # deciseconds are an awesome unit. |
| logging.info('Cycle %d: %f seconds delay.', n, t / 10.0) |
| self._test(t / 10.0) |
| logging.info('Done.') |
