1 # Copyright 2015 The Chromium OS 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 5 import logging 6 7 from autotest_lib.client.bin import utils 8 from autotest_lib.client.common_lib import error 9 from autotest_lib.server import site_utils 10 from autotest_lib.server import test 11 from autotest_lib.site_utils import lxc 12 13 14 class AudioTest(test.test): 15 """Base class for audio tests. 16 17 AudioTest provides a common warmup() function for the collection 18 of audio tests. 19 It is not mandatory to use this base class for audio tests, it is for 20 convenience only. 21 22 """ 23 24 def warmup(self): 25 """Warmup for the test before executing main logic of the test.""" 26 # test.test is an old-style class. 27 test.test.warmup(self) 28 audio_test_requirement() 29 30 31 def audio_test_requirement(): 32 """Installs sox and checks it is installed correctly.""" 33 install_sox() 34 check_sox_installed() 35 36 37 def install_sox(): 38 """Install sox command on autotest drone.""" 39 try: 40 lxc.install_package('sox') 41 except error.ContainerError: 42 logging.info('Can not install sox outside of container.') 43 44 45 def check_sox_installed(): 46 """Checks if sox is installed. 47 48 @raises: error.TestError if sox is not installed. 49 50 """ 51 try: 52 utils.run('sox --help') 53 logging.info('Found sox executable.') 54 except error.CmdError: 55 error_message = 'sox command is not installed.' 56 if site_utils.is_inside_chroot(): 57 error_message += ' sudo emerge sox to install sox in chroot' 58 raise error.TestError(error_message) 59
