| # Copyright 2020 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 logging |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros.power import power_status |
| from autotest_lib.client.cros.power import power_test |
| from autotest_lib.client.cros.power import power_utils |
| |
| |
| class power_WaitForCoolDown(power_test.power_Test): |
| """class for power_WaitForCoolDown test.""" |
| version = 1 |
| |
| def initialize(self, pdash_note='', seconds_period=20., |
| force_discharge=False): |
| power_utils.set_display_power(power_utils.DISPLAY_POWER_ALL_OFF) |
| super(power_WaitForCoolDown, self).initialize( |
| seconds_period=seconds_period, |
| pdash_note=pdash_note, |
| force_discharge=force_discharge) |
| for log in self._meas_logs: |
| if type(log) == power_status.TempLogger: |
| self._tlog = log |
| break |
| else: |
| raise error.TestNAError('DUT does not have temp sensor.') |
| |
| def run_once(self, target_temp=48, max_runtime=600): |
| """"Look at temperature every |seconds_period| seconds for at most |
| |max_runtime| seconds until reported temps do not exceed |target_temp|. |
| |
| @param target_temp: Target temperature in celsius. |
| @param max_runtime: Maximum runtime in seconds. |
| """ |
| loop_secs = max(1, int(self._seconds_period)) |
| num_loop = int(max_runtime / loop_secs) |
| self.start_measurements() |
| |
| for i in range(num_loop): |
| max_temp = max(self._tlog.refresh()) |
| if max_temp <= target_temp: |
| logging.info('Cooldown at %d seconds, temp: %.1fC', |
| i * self._seconds_period, max_temp) |
| return |
| self.loop_sleep(i, loop_secs) |
| |
| max_temp = max(self._tlog.refresh()) |
| logging.warn( |
| 'Fail to cool down after %d seconds, temp: %.1fC, target: %dC', |
| num_loop * loop_secs, max_temp, target_temp) |
| |
| def cleanup(self): |
| power_utils.set_display_power(power_utils.DISPLAY_POWER_ALL_ON) |
| super(power_WaitForCoolDown, self).cleanup() |