1# Copyright 2014 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4# pylint: disable=W0212 5 6import os 7import sys 8import unittest 9 10sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir)) 11 12from pylib import android_commands 13from pylib.device import device_utils 14from pylib.perf import perf_control 15 16class TestPerfControl(unittest.TestCase): 17 def setUp(self): 18 if not os.getenv('BUILDTYPE'): 19 os.environ['BUILDTYPE'] = 'Debug' 20 21 devices = android_commands.GetAttachedDevices() 22 self.assertGreater(len(devices), 0, 'No device attached!') 23 self._device = device_utils.DeviceUtils( 24 android_commands.AndroidCommands(device=devices[0])) 25 26 def testHighPerfMode(self): 27 perf = perf_control.PerfControl(self._device) 28 try: 29 perf.SetPerfProfilingMode() 30 for cpu in range(perf._num_cpu_cores): 31 path = perf_control.PerfControl._CPU_ONLINE_FMT % cpu 32 self.assertEquals('1', 33 self._device.ReadFile(path)[0]) 34 path = perf_control.PerfControl._SCALING_GOVERNOR_FMT % cpu 35 self.assertEquals('performance', 36 self._device.ReadFile(path)[0]) 37 finally: 38 perf.SetDefaultPerfMode() 39 40if __name__ == '__main__': 41 unittest.main() 42