1 # Copyright (c) 2014 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.client.cros import touch_playback_test_base 10 11 12 class touch_UpdateErrors(touch_playback_test_base.touch_playback_test_base): 13 """Check that touch update is tried and that there are no update errors.""" 14 version = 1 15 16 # Older devices with Synaptics touchpads do not report firmware updates. 17 _INVALID_BOARDS = ['x86-alex', 'x86-alex_he', 'x86-zgb', 'x86-zgb_he', 18 'x86-mario', 'stout'] 19 20 # Devices which have errors in older builds but not newer ones. 21 _IGNORE_OLDER_LOGS = ['expresso', 'enguarde', 'cyan', 'wizpig'] 22 23 # Devices which have errors in the first build after update. 24 _IGNORE_AFTER_UPDATE_LOGS = ['link'] 25 26 def _find_logs_start_line(self): 27 """Find where in /var/log/messages this build's logs start. 28 29 Prevent bugs such as crosbug.com/p/31012, where unfixable errors from 30 FSI builds remain in the logs. 31 32 For devices where this applies, split the logs by Linux version. Since 33 this line can repeat, find the last chunk of logs where the version is 34 all the same - all for the build under test. 35 36 @returns: string of the line number to start looking at logs 37 38 """ 39 if not (self._platform in self._IGNORE_OLDER_LOGS or 40 self._platform in self._IGNORE_AFTER_UPDATE_LOGS): 41 return '0' 42 43 log_cmd = 'grep -ni "Linux version " /var/log/messages' 44 45 version_entries = utils.run(log_cmd).stdout.strip().split('\n') 46 47 # Separate the line number and the version date (i.e. remove timestamp). 48 lines, dates = [], [] 49 for entry in version_entries: 50 lines.append(entry[:entry.find(':')]) 51 dates.append(entry[entry.find('Linux version '):]) 52 latest = dates[-1] 53 start_line = lines[-1] 54 start_line_index = -1 55 56 # Find where logs from this build start by checking backwards for the 57 # first change in build. Some of these dates may be duplicated. 58 for i in xrange(len(lines)-1, -1, -1): 59 if dates[i] != latest: 60 break 61 start_line = lines[i] 62 start_line_index = i 63 64 if start_line_index == 0: 65 return '0' 66 67 logging.info('This build has an older build; skipping some logs, ' 68 'as was hardcoded for this platform.') 69 70 # Ignore the first build after update if required. 71 if self._platform in self._IGNORE_AFTER_UPDATE_LOGS: 72 start_line_index += 1 73 if start_line_index >= len(lines): 74 raise error.TestError( 75 'Insufficent logs: aborting test to avoid a known ' 76 'issue! Please reboot and try again.') 77 start_line = lines[start_line_index] 78 79 return start_line 80 81 def _check_updates(self, input_type): 82 """Fail the test if device has problems with touch firmware update. 83 84 @param input_type: string of input type, e.g. 'touchpad' 85 86 @raises: TestFail if no update attempt occurs or if there is an error. 87 88 """ 89 hw_id = self.player.devices[input_type].hw_id 90 if not hw_id: 91 raise error.TestError('%s has no valid hw_id!' % input_type) 92 93 start_line = self._find_logs_start_line() 94 log_cmd = 'tail -n +%s /var/log/messages | grep -i touch' % start_line 95 96 pass_terms = ['touch-firmware-update'] 97 if hw_id == 'wacom': # Wacom styluses don't have Product ids. 98 pass_terms.append(hw_id) 99 else: 100 pass_terms.append('"Product[^a-z0-9]ID[^a-z0-9]*%s"' % hw_id) 101 fail_terms = ['error[^s]', 'err[^a-z]'] 102 ignore_terms = ['touchview','autotest'] 103 104 # Remove lines that match ignore_terms. 105 for term in ignore_terms: 106 log_cmd += ' | grep -v -i %s' % term 107 108 # Check for key terms in touch logs. 109 for term in pass_terms + fail_terms: 110 search_cmd = '%s | grep -i %s' % (log_cmd, term) 111 log_entries = utils.run(search_cmd, ignore_status=True).stdout 112 if term in fail_terms and len(log_entries) > 0: 113 error_msg = log_entries.split('\n')[0] 114 error_msg = error_msg[error_msg.find(term)+len(term):].strip() 115 raise error.TestFail(error_msg) 116 if term in pass_terms and len(log_entries) == 0: 117 logging.info('Did not find "%s"!', term) 118 raise error.TestFail('Touch firmware did not attempt update.') 119 120 def run_once(self, input_type='touchpad'): 121 """Entry point of this test.""" 122 if not self.player.has(input_type): 123 raise error.TestError('No %s found on this device!' % input_type) 124 125 # Skip run on invalid touch inputs. 126 if self._platform in self._INVALID_BOARDS: 127 logging.info('This touchpad is not supported for this test.') 128 return 129 130 self._check_updates(input_type) 131
