| # 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. |
| |
| from datetime import datetime, timedelta |
| import collections |
| import json |
| import logging |
| import os |
| import time |
| import urlparse |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros import dev_server |
| from autotest_lib.server import autotest, test |
| from autotest_lib.server.cros.dynamic_suite import tools |
| |
| |
| def snippet(text): |
| """Returns the text with start/end snip markers around it. |
| |
| @param text: The snippet text. |
| |
| @return The text with start/end snip markers around it. |
| """ |
| snip = '---8<---' * 10 |
| start = '-- START -' |
| end = '-- END -' |
| return ('%s%s\n%s\n%s%s' % |
| (start, snip[len(start):], text, end, snip[len(end):])) |
| |
| |
| # Update event types. |
| EVENT_TYPE_DOWNLOAD_COMPLETE = '1' |
| EVENT_TYPE_INSTALL_COMPLETE = '2' |
| EVENT_TYPE_UPDATE_COMPLETE = '3' |
| EVENT_TYPE_DOWNLOAD_STARTED = '13' |
| EVENT_TYPE_DOWNLOAD_FINISHED = '14' |
| EVENT_TYPE_REBOOTED_AFTER_UPDATE = '54' |
| |
| # Update event results. |
| EVENT_RESULT_ERROR = '0' |
| EVENT_RESULT_SUCCESS = '1' |
| EVENT_RESULT_SUCCESS_REBOOT = '2' |
| EVENT_RESULT_UPDATE_DEFERRED = '9' |
| |
| # Omaha event types/results, from update_engine/omaha_request_action.h |
| # These are stored in dict form in order to easily print out the keys. |
| EVENT_TYPE_DICT = { |
| EVENT_TYPE_DOWNLOAD_COMPLETE: 'download_complete', |
| EVENT_TYPE_INSTALL_COMPLETE: 'install_complete', |
| EVENT_TYPE_UPDATE_COMPLETE: 'update_complete', |
| EVENT_TYPE_DOWNLOAD_STARTED: 'download_started', |
| EVENT_TYPE_DOWNLOAD_FINISHED: 'download_finished', |
| EVENT_TYPE_REBOOTED_AFTER_UPDATE: 'rebooted_after_update' |
| } |
| |
| EVENT_RESULT_DICT = { |
| EVENT_RESULT_ERROR: 'error', |
| EVENT_RESULT_SUCCESS: 'success', |
| EVENT_RESULT_SUCCESS_REBOOT: 'success_reboot', |
| EVENT_RESULT_UPDATE_DEFERRED: 'update_deferred' |
| } |
| |
| |
| class ExpectedUpdateEventChainFailed(error.TestFail): |
| """Raised if we fail to receive an expected event in a chain.""" |
| |
| |
| class ExpectedUpdateEvent(object): |
| """Defines an expected event in an update process.""" |
| |
| _ATTR_NAME_DICT_MAP = { |
| 'event_type': EVENT_TYPE_DICT, |
| 'event_result': EVENT_RESULT_DICT, |
| } |
| |
| _VALID_TYPES = set(EVENT_TYPE_DICT.keys()) |
| _VALID_RESULTS = set(EVENT_RESULT_DICT.keys()) |
| |
| def __init__(self, event_type=None, event_result=None, version=None, |
| previous_version=None, on_error=None): |
| """Initializes an event expectation. |
| |
| @param event_type: Expected event type. |
| @param event_result: Expected event result code. |
| @param version: Expected reported image version. |
| @param previous_version: Expected reported previous image version. |
| @param on_error: This is either an object to be returned when a received |
| event mismatches the expectation, or a callable used |
| for generating one. In the latter case, takes as |
| input two attribute dictionaries (expected and actual) |
| and an iterable of mismatched keys. If None, a generic |
| message is returned. |
| """ |
| if event_type and event_type not in self._VALID_TYPES: |
| raise ValueError('event_type %s is not valid.' % event_type) |
| |
| if event_result and event_result not in self._VALID_RESULTS: |
| raise ValueError('event_result %s is not valid.' % event_result) |
| |
| self._expected_attrs = { |
| 'event_type': event_type, |
| 'event_result': event_result, |
| 'version': version, |
| 'previous_version': previous_version, |
| } |
| self._on_error = on_error |
| |
| |
| @staticmethod |
| def _attr_val_str(attr_val, helper_dict, default=None): |
| """Returns an enriched attribute value string, or default.""" |
| if not attr_val: |
| return default |
| |
| s = str(attr_val) |
| if helper_dict: |
| s += ':%s' % helper_dict.get(attr_val, 'unknown') |
| |
| return s |
| |
| |
| def _attr_name_and_values(self, attr_name, expected_attr_val, |
| actual_attr_val=None): |
| """Returns an attribute name, expected and actual value strings. |
| |
| This will return (name, expected, actual); the returned value for |
| actual will be None if its respective input is None/empty. |
| |
| """ |
| helper_dict = self._ATTR_NAME_DICT_MAP.get(attr_name) |
| expected_attr_val_str = self._attr_val_str(expected_attr_val, |
| helper_dict, |
| default='any') |
| actual_attr_val_str = self._attr_val_str(actual_attr_val, helper_dict) |
| |
| return attr_name, expected_attr_val_str, actual_attr_val_str |
| |
| |
| def _attrs_to_str(self, attrs_dict): |
| return ' '.join(['%s=%s' % |
| self._attr_name_and_values(attr_name, attr_val)[0:2] |
| for attr_name, attr_val in attrs_dict.iteritems()]) |
| |
| |
| def __str__(self): |
| return self._attrs_to_str(self._expected_attrs) |
| |
| |
| def verify(self, actual_event): |
| """Verify the attributes of an actual event. |
| |
| @param actual_event: a dictionary containing event attributes |
| |
| @return An error message, or None if all attributes as expected. |
| |
| """ |
| mismatched_attrs = [ |
| attr_name for attr_name, expected_attr_val |
| in self._expected_attrs.iteritems() |
| if (expected_attr_val and |
| not self._verify_attr(attr_name, expected_attr_val, |
| actual_event.get(attr_name)))] |
| if not mismatched_attrs: |
| return None |
| if callable(self._on_error): |
| return self._on_error(self._expected_attrs, actual_event, |
| mismatched_attrs) |
| if self._on_error is None: |
| return ('Received event (%s) does not match expectation (%s)' % |
| (self._attrs_to_str(actual_event), self)) |
| return self._on_error |
| |
| |
| def _verify_attr(self, attr_name, expected_attr_val, actual_attr_val): |
| """Verifies that an actual log event attributes matches expected on. |
| |
| @param attr_name: name of the attribute to verify |
| @param expected_attr_val: expected attribute value |
| @param actual_attr_val: actual attribute value |
| |
| @return True if actual value is present and matches, False otherwise. |
| |
| """ |
| # None values are assumed to be missing and non-matching. |
| if actual_attr_val is None: |
| logging.error('No value found for %s (expected %s)', |
| *self._attr_name_and_values(attr_name, |
| expected_attr_val)[0:2]) |
| return False |
| |
| # We allow expected version numbers (e.g. 2940.0.0) to be contained in |
| # actual values (2940.0.0-a1); this is necessary for the test to pass |
| # with developer / non-release images. |
| if (actual_attr_val == expected_attr_val or |
| ('version' in attr_name and expected_attr_val in actual_attr_val)): |
| return True |
| |
| return False |
| |
| |
| def get_attrs(self): |
| """Returns a dictionary of expected attributes.""" |
| return dict(self._expected_attrs) |
| |
| |
| class ExpectedUpdateEventChain(object): |
| """Defines a chain of expected update events.""" |
| def __init__(self): |
| self._expected_events_chain = [] |
| self._current_timestamp = None |
| |
| |
| def add_event(self, expected_events, timeout, on_timeout=None): |
| """Adds an expected event to the chain. |
| |
| @param expected_events: The ExpectedEvent, or a list thereof, to wait |
| for. If a list is passed, it will wait for *any* |
| of the provided events, but only one of those. |
| @param timeout: A timeout (in seconds) to wait for the event. |
| @param on_timeout: An error string to use if the event times out. If |
| None, a generic message is used. |
| """ |
| if isinstance(expected_events, ExpectedUpdateEvent): |
| expected_events = [expected_events] |
| self._expected_events_chain.append( |
| (expected_events, timeout, on_timeout)) |
| |
| |
| @staticmethod |
| def _format_event_with_timeout(expected_events, timeout): |
| """Returns a string representation of the event, with timeout.""" |
| until = 'within %s seconds' % timeout if timeout else 'indefinitely' |
| return '%s, %s' % (' OR '.join(map(str, expected_events)), until) |
| |
| |
| def __str__(self): |
| return ('[%s]' % |
| ', '.join( |
| [self._format_event_with_timeout(expected_events, timeout) |
| for expected_events, timeout, _ |
| in self._expected_events_chain])) |
| |
| |
| def __repr__(self): |
| return str(self._expected_events_chain) |
| |
| |
| def verify(self, get_next_event): |
| """Verifies that an actual stream of events complies. |
| |
| @param get_next_event: a function returning the next event |
| |
| @raises ExpectedUpdateEventChainFailed if we failed to verify an event. |
| |
| """ |
| for expected_events, timeout, on_timeout in self._expected_events_chain: |
| logging.info('Expecting %s', |
| self._format_event_with_timeout(expected_events, |
| timeout)) |
| err_msg = self._verify_event_with_timeout( |
| expected_events, timeout, on_timeout, get_next_event) |
| if err_msg is not None: |
| logging.error('Failed expected event: %s', err_msg) |
| raise ExpectedUpdateEventChainFailed(err_msg) |
| |
| |
| def _verify_event_with_timeout(self, expected_events, timeout, on_timeout, |
| get_next_event): |
| """Verify an expected event occurs within a given timeout. |
| |
| @param expected_events: the list of possible events expected next |
| @param timeout: specified in seconds |
| @param on_timeout: A string to return if timeout occurs, or None. |
| @param get_next_event: function returning the next event in a stream |
| |
| @return None if event complies, an error string otherwise. |
| |
| """ |
| new_event = get_next_event() |
| if new_event: |
| # If this is the first event, set it as the current time |
| if self._current_timestamp is None: |
| self._current_timestamp = datetime.strptime(new_event[ |
| 'timestamp'], |
| '%Y-%m-%d %H:%M:%S') |
| |
| # Get the time stamp for the current event and convert to datetime |
| timestamp = new_event['timestamp'] |
| event_timestamp = datetime.strptime(timestamp, '%Y-%m-%d %H:%M:%S') |
| |
| # Add the timeout onto the timestamp to get its expiry |
| event_timeout = self._current_timestamp + timedelta(seconds=timeout) |
| |
| # If the event happened before the timeout |
| if event_timestamp < event_timeout: |
| difference = event_timestamp - self._current_timestamp |
| logging.info('Event took %s seconds to fire during the ' |
| 'update', difference.seconds) |
| results = [event.verify(new_event) for event in expected_events] |
| self._current_timestamp = event_timestamp |
| return None if None in results else ' AND '.join(results) |
| |
| logging.error('Timeout expired') |
| if on_timeout is None: |
| return ('Waiting for event %s timed out after %d seconds' % |
| (' OR '.join(map(str, expected_events)), timeout)) |
| return on_timeout |
| |
| |
| class UpdateEventLogVerifier(object): |
| """Verifies update event chains on a devserver update log.""" |
| def __init__(self, event_log_filename): |
| self._event_log_filename = event_log_filename |
| self._event_log = [] |
| self._num_consumed_events = 0 |
| |
| |
| def verify_expected_events_chain(self, expected_event_chain): |
| """Verify a given event chain. |
| |
| @param expected_event_chain: instance of expected event chain. |
| |
| @raises ExpectedUpdateEventChainFailed if we failed to verify the an |
| event. |
| """ |
| expected_event_chain.verify(self._get_next_log_event) |
| |
| |
| def _get_next_log_event(self): |
| """Returns the next event in an event log. |
| |
| Uses the filename handed to it during initialization to read the |
| host log from devserver used during the update. |
| |
| @return The next new event in the host log, as reported by devserver; |
| None if no such event was found or an error occurred. |
| |
| """ |
| # (Re)read event log from hostlog file, if necessary. |
| if len(self._event_log) <= self._num_consumed_events: |
| try: |
| with open(self._event_log_filename, 'r') as out_log: |
| self._event_log = json.loads(out_log.read()) |
| except Exception as e: |
| raise error.TestFail('Error while reading the hostlogs ' |
| 'from devserver: %s' % e) |
| |
| # Return next new event, if one is found. |
| if len(self._event_log) > self._num_consumed_events: |
| new_event = { |
| key: str(val) for key, val |
| in self._event_log[self._num_consumed_events].iteritems() |
| } |
| self._num_consumed_events += 1 |
| logging.info('Consumed new event: %s', new_event) |
| return new_event |
| |
| |
| class TestPlatform(object): |
| """An interface and factory for platform-dependent functionality.""" |
| |
| # Named tuple containing urls for staged urls needed for test. |
| # source_url: url to find the update payload for the source image. |
| # source_stateful_url: url to find the stateful payload for the source |
| # image. |
| # target_url: url to find the update payload for the target image. |
| # target_stateful_url: url to find the stateful payload for the target |
| # image. |
| StagedURLs = collections.namedtuple( |
| 'StagedURLs', |
| ['source_url', 'source_stateful_url', 'target_url', |
| 'target_stateful_url']) |
| |
| |
| def __init__(self): |
| assert False, 'Cannot instantiate this interface' |
| |
| |
| @staticmethod |
| def create(host): |
| """Returns a TestPlatform implementation based on the host type. |
| |
| *DO NOT* override this method. |
| |
| @param host: a host object representing the DUT |
| |
| @return A TestPlatform implementation. |
| """ |
| os_type = host.get_os_type() |
| if os_type in ('cros', 'moblab'): |
| return ChromiumOSTestPlatform(host) |
| |
| raise error.TestError('Unknown OS type reported by host: %s' % os_type) |
| |
| |
| def initialize(self, autotest_devserver): |
| """Initialize the object. |
| |
| @param autotest_devserver: Instance of client.common_lib.dev_server to |
| use to reach the devserver instance for this |
| build. |
| """ |
| raise NotImplementedError |
| |
| |
| def prep_artifacts(self, test_conf): |
| """Prepares update artifacts for the test. |
| |
| The test config must include 'source_payload_uri' and |
| 'target_payload_uri'. In addition, it may include platform-specific |
| values as determined by the test control file. |
| |
| @param test_conf: Dictionary containing the test configuration. |
| |
| @return A tuple of staged URLs. |
| |
| @raise error.TestError on failure. |
| """ |
| raise NotImplementedError |
| |
| |
| def reboot_device(self): |
| """Reboots the device.""" |
| raise NotImplementedError |
| |
| |
| def prep_device_for_update(self, source_payload_uri): |
| """Prepares the device for update. |
| |
| @param source_payload_uri: Source payload GS URI to install. |
| |
| @raise error.TestError on failure. |
| """ |
| raise NotImplementedError |
| |
| |
| def get_active_slot(self): |
| """Returns the active boot slot of the device.""" |
| raise NotImplementedError |
| |
| |
| def start_update_perf(self, bindir): |
| """Starts performance monitoring (if available). |
| |
| @param bindir: Directory containing test binary files. |
| """ |
| raise NotImplementedError |
| |
| |
| def stop_update_perf(self): |
| """Stops performance monitoring and returns data (if available). |
| |
| @return Dictionary containing performance attributes. |
| """ |
| raise NotImplementedError |
| |
| |
| def trigger_update(self, target_payload_uri): |
| """Kicks off an update. |
| |
| @param target_payload_uri: The GS URI to use for the update. |
| """ |
| raise NotImplementedError |
| |
| |
| def finalize_update(self): |
| """Performs post-update procedures.""" |
| raise NotImplementedError |
| |
| |
| def get_update_log(self, num_lines): |
| """Returns the update log. |
| |
| @param num_lines: Number of log lines to return (tail), zero for all. |
| |
| @return String containing the last |num_lines| from the update log. |
| """ |
| raise NotImplementedError |
| |
| |
| def check_device_after_update(self): |
| """Runs final sanity checks. |
| |
| @raise error.TestError on failure. |
| """ |
| raise NotImplementedError |
| |
| |
| def oobe_triggers_update(self): |
| """Returns True if this host has an OOBE flow during which |
| it will perform an update check and perhaps an update. |
| One example of such a flow is Hands-Off Zero-Touch Enrollment. |
| |
| @return Boolean indicating whether the DUT's OOBE triggers an update. |
| """ |
| raise NotImplementedError |
| |
| |
| def verify_version(self, version): |
| """Compares the OS version on the DUT with the provided version. |
| |
| @param version: The version to compare with (string). |
| @raise error.TestFail if the versions differ. |
| """ |
| actual_version = self._host.get_release_version() |
| if actual_version != version: |
| err_msg = 'Failed to verify OS version. Expected %s, was %s' % ( |
| version, actual_version) |
| logging.error(err_msg) |
| raise error.TestFail(err_msg) |
| |
| |
| class ChromiumOSTestPlatform(TestPlatform): |
| """A TestPlatform implementation for Chromium OS.""" |
| |
| _STATEFUL_UPDATE_FILENAME = 'stateful.tgz' |
| |
| def __init__(self, host): |
| self._host = host |
| self._autotest_devserver = None |
| self._staged_urls = None |
| self._perf_mon_pid = None |
| |
| |
| def _stage_payload(self, build_name, filename, archive_url=None): |
| """Stage the given payload onto the devserver. |
| |
| Works for either a stateful or full/delta test payload. Expects the |
| gs_path or a combo of build_name + filename. |
| |
| @param build_name: The build name e.g. x86-mario-release/<version>. |
| If set, assumes default gs archive bucket and |
| requires filename to be specified. |
| @param filename: In conjunction with build_name, this is the file you |
| are downloading. |
| @param archive_url: An optional GS archive location, if not using the |
| devserver's default. |
| |
| @return URL of the staged payload on the server. |
| |
| @raise error.TestError if there's a problem with staging. |
| |
| """ |
| try: |
| self._autotest_devserver.stage_artifacts(image=build_name, |
| files=[filename], |
| archive_url=archive_url) |
| return self._autotest_devserver.get_staged_file_url(filename, |
| build_name) |
| except dev_server.DevServerException, e: |
| raise error.TestError('Failed to stage payload: %s' % e) |
| |
| |
| def _stage_payload_by_uri(self, payload_uri): |
| """Stage a payload based on its GS URI. |
| |
| This infers the build's label, filename and GS archive from the |
| provided GS URI. |
| |
| @param payload_uri: The full GS URI of the payload. |
| |
| @return URL of the staged payload on the server. |
| |
| @raise error.TestError if there's a problem with staging. |
| |
| """ |
| archive_url, _, filename = payload_uri.rpartition('/') |
| build_name = urlparse.urlsplit(archive_url).path.strip('/') |
| return self._stage_payload(build_name, filename, |
| archive_url=archive_url) |
| |
| |
| def _get_stateful_uri(self, build_uri): |
| """Returns a complete GS URI of a stateful update given a build path.""" |
| return '/'.join([build_uri.rstrip('/'), self._STATEFUL_UPDATE_FILENAME]) |
| |
| |
| def _payload_to_stateful_uri(self, payload_uri): |
| """Given a payload GS URI, returns the corresponding stateful URI.""" |
| build_uri = payload_uri.rpartition('/')[0] |
| if build_uri.endswith('payloads'): |
| build_uri = build_uri.rpartition('/')[0] |
| return self._get_stateful_uri(build_uri) |
| |
| |
| @staticmethod |
| def _get_update_parameters_from_uri(payload_uri): |
| """Extract the two vars needed for cros_au from the Google Storage URI. |
| |
| dev_server.auto_update needs two values from this test: |
| (1) A build_name string e.g samus-release/R60-9583.0.0 |
| (2) A filename of the exact payload file to use for the update. This |
| payload needs to have already been staged on the devserver. |
| |
| This function extracts those two values from a Google Storage URI. |
| |
| @param payload_uri: Google Storage URI to extract values from |
| """ |
| archive_url, _, payload_file = payload_uri.rpartition('/') |
| build_name = urlparse.urlsplit(archive_url).path.strip('/') |
| |
| # This test supports payload uris from two Google Storage buckets. |
| # They store their payloads slightly differently. One stores them in |
| # a separate payloads directory. E.g |
| # gs://chromeos-image-archive/samus-release/R60-9583.0.0/blah.bin |
| # gs://chromeos-releases/dev-channel/samus/9334.0.0/payloads/blah.bin |
| if build_name.endswith('payloads'): |
| build_name = build_name.rpartition('/')[0] |
| payload_file = 'payloads/' + payload_file |
| |
| logging.debug('Extracted build_name: %s, payload_file: %s from %s.', |
| build_name, payload_file, payload_uri) |
| return build_name, payload_file |
| |
| |
| def _install_version(self, payload_uri, clobber_stateful=False): |
| """Install the specified host with the image given by the url. |
| |
| @param payload_uri: GS URI used to compute values for devserver cros_au |
| @param clobber_stateful: force a reinstall of the stateful image. |
| """ |
| |
| build_name, payload_file = self._get_update_parameters_from_uri( |
| payload_uri) |
| logging.info('Installing image %s on the DUT', payload_uri) |
| |
| try: |
| ds = self._autotest_devserver |
| _, pid = ds.auto_update(host_name=self._host.hostname, |
| build_name=build_name, |
| force_update=True, |
| full_update=True, |
| log_dir=self._results_dir, |
| payload_filename=payload_file, |
| clobber_stateful=clobber_stateful) |
| except: |
| logging.fatal('ERROR: Failed to install image on the DUT.') |
| raise |
| return pid |
| |
| |
| def _stage_artifacts_onto_devserver(self, test_conf): |
| """Stages artifacts that will be used by the test onto the devserver. |
| |
| @param test_conf: a dictionary containing test configuration values |
| |
| @return a StagedURLs tuple containing the staged urls. |
| """ |
| logging.info('Staging images onto autotest devserver (%s)', |
| self._autotest_devserver.url()) |
| |
| staged_source_url = None |
| source_payload_uri = test_conf['source_payload_uri'] |
| |
| if source_payload_uri: |
| staged_source_url = self._stage_payload_by_uri(source_payload_uri) |
| |
| # In order to properly install the source image using a full |
| # payload we'll also need the stateful update that comes with it. |
| # In general, tests may have their source artifacts in a different |
| # location than their payloads. This is determined by whether or |
| # not the source_archive_uri attribute is set; if it isn't set, |
| # then we derive it from the dirname of the source payload. |
| source_archive_uri = test_conf.get('source_archive_uri') |
| if source_archive_uri: |
| source_stateful_uri = self._get_stateful_uri(source_archive_uri) |
| else: |
| source_stateful_uri = self._payload_to_stateful_uri( |
| source_payload_uri) |
| |
| staged_source_stateful_url = self._stage_payload_by_uri( |
| source_stateful_uri) |
| |
| # Log source image URLs. |
| logging.info('Source full payload from %s staged at %s', |
| source_payload_uri, staged_source_url) |
| if staged_source_stateful_url: |
| logging.info('Source stateful update from %s staged at %s', |
| source_stateful_uri, staged_source_stateful_url) |
| |
| target_payload_uri = test_conf['target_payload_uri'] |
| staged_target_url = self._stage_payload_by_uri(target_payload_uri) |
| target_stateful_uri = None |
| staged_target_stateful_url = None |
| target_archive_uri = test_conf.get('target_archive_uri') |
| if target_archive_uri: |
| target_stateful_uri = self._get_stateful_uri(target_archive_uri) |
| else: |
| target_stateful_uri = self._payload_to_stateful_uri( |
| target_payload_uri) |
| |
| if not staged_target_stateful_url and target_stateful_uri: |
| staged_target_stateful_url = self._stage_payload_by_uri( |
| target_stateful_uri) |
| |
| # Log target payload URLs. |
| logging.info('%s test payload from %s staged at %s', |
| test_conf['update_type'], target_payload_uri, |
| staged_target_url) |
| logging.info('Target stateful update from %s staged at %s', |
| target_stateful_uri, staged_target_stateful_url) |
| |
| return self.StagedURLs(staged_source_url, staged_source_stateful_url, |
| staged_target_url, staged_target_stateful_url) |
| |
| |
| def _run_login_test(self, tag): |
| """Runs login_LoginSuccess test on the DUT.""" |
| client_at = autotest.Autotest(self._host) |
| client_at.run_test('login_LoginSuccess', tag=tag) |
| |
| |
| def _start_perf_mon(self, bindir): |
| """Starts monitoring performance and resource usage on a DUT. |
| |
| Call _stop_perf_mon() with the returned PID to stop monitoring |
| and collect the results. |
| |
| @param bindir: Directoy containing monitoring script. |
| |
| @return The PID of the newly created DUT monitoring process. |
| """ |
| # We can't assume much about the source image so we copy the |
| # performance monitoring script to the DUT directly. |
| path = os.path.join(bindir, 'update_engine_performance_monitor.py') |
| self._host.send_file(path, '/tmp') |
| cmd = 'python /tmp/update_engine_performance_monitor.py --start-bg' |
| return int(self._host.run(cmd).stdout) |
| |
| |
| def _stop_perf_mon(self, perf_mon_pid): |
| """Stops monitoring performance and resource usage on a DUT. |
| |
| @param perf_mon_pid: the PID returned from _start_perf_mon(). |
| |
| @return Dictionary containing performance attributes, or None if |
| unavailable. |
| """ |
| # Gracefully handle problems with performance monitoring by |
| # just returning None. |
| try: |
| cmd = ('python /tmp/update_engine_performance_monitor.py ' |
| '--stop-bg=%d') % perf_mon_pid |
| perf_json_txt = self._host.run(cmd).stdout |
| return json.loads(perf_json_txt) |
| except Exception as e: |
| logging.warning('Failed to parse output from ' |
| 'update_engine_performance_monitor.py: %s', e) |
| return None |
| |
| |
| # Interface overrides. |
| # |
| def initialize(self, autotest_devserver, results_dir): |
| self._autotest_devserver = autotest_devserver |
| self._results_dir = results_dir |
| |
| |
| def reboot_device(self): |
| self._host.reboot() |
| |
| |
| def prep_artifacts(self, test_conf): |
| self._staged_urls = self._stage_artifacts_onto_devserver(test_conf) |
| return self._staged_urls |
| |
| |
| def prep_device_for_update(self, source_payload_uri): |
| # Install the source version onto the DUT. |
| if self._staged_urls.source_url: |
| self._install_version(source_payload_uri, clobber_stateful=True) |
| |
| # Make sure we can login before the target update. |
| self._run_login_test('source_update') |
| |
| |
| def get_active_slot(self): |
| return self._host.run('rootdev -s').stdout.strip() |
| |
| |
| def start_update_perf(self, bindir): |
| if self._perf_mon_pid is None: |
| self._perf_mon_pid = self._start_perf_mon(bindir) |
| |
| |
| def stop_update_perf(self): |
| perf_data = None |
| if self._perf_mon_pid is not None: |
| perf_data = self._stop_perf_mon(self._perf_mon_pid) |
| self._perf_mon_pid = None |
| |
| return perf_data |
| |
| |
| def trigger_update(self, target_payload_uri): |
| logging.info('Updating device to target image.') |
| return self._install_version(target_payload_uri) |
| |
| def finalize_update(self): |
| # Stateful update is controlled by cros_au |
| pass |
| |
| |
| def get_update_log(self, num_lines): |
| return self._host.run_output( |
| 'tail -n %d /var/log/update_engine.log' % num_lines, |
| stdout_tee=None) |
| |
| |
| def check_device_after_update(self): |
| # Make sure we can login after update. |
| self._run_login_test('target_update') |
| |
| |
| def oobe_triggers_update(self): |
| return self._host.oobe_triggers_update() |
| |
| |
| class autoupdate_EndToEndTest(test.test): |
| """Complete update test between two Chrome OS releases. |
| |
| Performs an end-to-end test of updating a ChromeOS device from one version |
| to another. The test performs the following steps: |
| |
| 1. Stages the source (full) and target update payload on the central |
| devserver. |
| 2. Installs a source image on the DUT (if provided) and reboots to it. |
| 3. Then starts the target update by calling cros_au RPC on the devserver. |
| 4. This copies the devserver code and all payloads to the DUT. |
| 5. Starts a devserver on the DUT. |
| 6. Starts an update pointing to this local devserver. |
| 7. Watches as the DUT applies the update to rootfs and stateful. |
| 8. Reboots and repeats steps 5-6, ensuring that the next update check |
| shows the new image version. |
| 9. Returns the hostlogs collected during each update check for |
| verification against expected update events. |
| |
| Some notes on naming: |
| devserver: Refers to a machine running the Chrome OS Update Devserver. |
| autotest_devserver: An autotest wrapper to interact with a devserver. |
| Can be used to stage artifacts to a devserver. While |
| this can also be used to update a machine, we do not |
| use it for that purpose in this test as we manage |
| updates with out own devserver instances (see below). |
| *staged_url's: In this case staged refers to the fact that these items |
| are available to be downloaded statically from these urls |
| e.g. 'localhost:8080/static/my_file.gz'. These are usually |
| given after staging an artifact using a autotest_devserver |
| though they can be re-created given enough assumptions. |
| *update_url's: Urls refering to the update RPC on a given omaha devserver. |
| Since we always use an instantiated omaha devserver to run |
| updates, these will always reference an existing instance |
| of an omaha devserver that we just created for the purposes |
| of updating. |
| |
| """ |
| version = 1 |
| |
| # Timeout periods, given in seconds. |
| _WAIT_FOR_INITIAL_UPDATE_CHECK_SECONDS = 12 * 60 |
| # TODO(sosa): Investigate why this needs to be so long (this used to be |
| # 120 and regressed). |
| _WAIT_FOR_DOWNLOAD_STARTED_SECONDS = 4 * 60 |
| # See https://crbug.com/731214 before changing WAIT_FOR_DOWNLOAD |
| _WAIT_FOR_DOWNLOAD_COMPLETED_SECONDS = 20 * 60 |
| _WAIT_FOR_UPDATE_COMPLETED_SECONDS = 4 * 60 |
| _WAIT_FOR_UPDATE_CHECK_AFTER_REBOOT_SECONDS = 15 * 60 |
| |
| # Logs and their whereabouts. |
| _WHERE_UPDATE_LOG = ('update_engine log (in sysinfo or on the DUT, also ' |
| 'included in the test log)') |
| _WHERE_OMAHA_LOG = 'Omaha-devserver log (included in the test log)' |
| |
| |
| def initialize(self): |
| """Sets up variables that will be used by test.""" |
| self._host = None |
| self._omaha_devserver = None |
| self._source_image_installed = False |
| |
| |
| def cleanup(self): |
| """Kill the omaha devserver if it's still around.""" |
| if self._omaha_devserver: |
| self._omaha_devserver.stop_devserver() |
| |
| self._omaha_devserver = None |
| |
| |
| def _get_hostlog_file(self, filename, pid): |
| """Return the hostlog file location. |
| |
| @param filename: The partial filename to look for. |
| @param pid: The pid of the update. |
| |
| """ |
| hosts = [self._host.hostname, self._host.ip] |
| for host in hosts: |
| hostlog = '%s_%s_%s' % (filename, host, pid) |
| file_url = os.path.join(self.job.resultdir, |
| dev_server.AUTO_UPDATE_LOG_DIR, |
| hostlog) |
| if os.path.exists(file_url): |
| return file_url |
| raise error.TestFail('Could not find %s for pid %s' % (filename, pid)) |
| |
| |
| def _dump_update_engine_log(self, test_platform): |
| """Dumps relevant AU error log.""" |
| try: |
| error_log = test_platform.get_update_log(80) |
| logging.error('Dumping snippet of update_engine log:\n%s', |
| snippet(error_log)) |
| except Exception: |
| # Mute any exceptions we get printing debug logs. |
| pass |
| |
| |
| def _report_perf_data(self, perf_data): |
| """Reports performance and resource data. |
| |
| Currently, performance attributes are expected to include 'rss_peak' |
| (peak memory usage in bytes). |
| |
| @param perf_data: A dictionary containing performance attributes. |
| """ |
| rss_peak = perf_data.get('rss_peak') |
| if rss_peak: |
| rss_peak_kib = rss_peak / 1024 |
| logging.info('Peak memory (RSS) usage on DUT: %d KiB', rss_peak_kib) |
| self.output_perf_value(description='mem_usage_peak', |
| value=int(rss_peak_kib), |
| units='KiB', |
| higher_is_better=False) |
| else: |
| logging.warning('No rss_peak key in JSON returned by ' |
| 'update_engine_performance_monitor.py') |
| |
| |
| def _error_initial_check(self, expected, actual, mismatched_attrs): |
| if 'version' in mismatched_attrs: |
| err_msg = ('Initial update check was received but the reported ' |
| 'version is different from what was expected.') |
| if self._source_image_installed: |
| err_msg += (' The source payload we installed was probably ' |
| 'incorrect or corrupt.') |
| else: |
| err_msg += (' The DUT is probably not running the correct ' |
| 'source image.') |
| return err_msg |
| |
| return 'A test bug occurred; inspect the test log.' |
| |
| |
| def _error_intermediate(self, expected, actual, mismatched_attrs, action, |
| problem): |
| if 'event_result' in mismatched_attrs: |
| event_result = actual.get('event_result') |
| reported = (('different than expected (%s)' % |
| EVENT_RESULT_DICT[event_result]) |
| if event_result else 'missing') |
| return ('The updater reported result code is %s. This could be an ' |
| 'updater bug or a connectivity problem; check the %s. For ' |
| 'a detailed log of update events, check the %s.' % |
| (reported, self._WHERE_UPDATE_LOG, self._WHERE_OMAHA_LOG)) |
| if 'event_type' in mismatched_attrs: |
| event_type = actual.get('event_type') |
| reported = ('different (%s)' % EVENT_TYPE_DICT[event_type] |
| if event_type else 'missing') |
| return ('Expected the updater to %s (%s) but received event type ' |
| 'is %s. This could be an updater %s; check the ' |
| '%s. For a detailed log of update events, check the %s.' % |
| (action, EVENT_TYPE_DICT[expected['event_type']], reported, |
| problem, self._WHERE_UPDATE_LOG, self._WHERE_OMAHA_LOG)) |
| if 'version' in mismatched_attrs: |
| return ('The updater reported an unexpected version despite ' |
| 'previously reporting the correct one. This is most likely ' |
| 'a bug in update engine; check the %s.' % |
| self._WHERE_UPDATE_LOG) |
| |
| return 'A test bug occurred; inspect the test log.' |
| |
| |
| def _error_download_started(self, expected, actual, mismatched_attrs): |
| return self._error_intermediate(expected, actual, mismatched_attrs, |
| 'begin downloading', |
| 'bug, crash or provisioning error') |
| |
| |
| def _error_download_finished(self, expected, actual, mismatched_attrs): |
| return self._error_intermediate(expected, actual, mismatched_attrs, |
| 'finish downloading', 'bug or crash') |
| |
| |
| def _error_update_complete(self, expected, actual, mismatched_attrs): |
| return self._error_intermediate(expected, actual, mismatched_attrs, |
| 'complete the update', 'bug or crash') |
| |
| |
| def _error_reboot_after_update(self, expected, actual, mismatched_attrs): |
| if 'event_result' in mismatched_attrs: |
| event_result = actual.get('event_result') |
| reported = ('different (%s)' % EVENT_RESULT_DICT[event_result] |
| if event_result else 'missing') |
| return ('The updater was expected to reboot (%s) but reported ' |
| 'result code is %s. This could be a failure to reboot, an ' |
| 'updater bug or a connectivity problem; check the %s and ' |
| 'the system log. For a detailed log of update events, ' |
| 'check the %s.' % |
| (EVENT_RESULT_DICT[expected['event_result']], reported, |
| self._WHERE_UPDATE_LOG, self._WHERE_OMAHA_LOG)) |
| if 'event_type' in mismatched_attrs: |
| event_type = actual.get('event_type') |
| reported = ('different (%s)' % EVENT_TYPE_DICT[event_type] |
| if event_type else 'missing') |
| return ('Expected to successfully reboot into the new image (%s) ' |
| 'but received event type is %s. This probably means that ' |
| 'the new image failed to verify after reboot, possibly ' |
| 'because the payload is corrupt. This might also be an ' |
| 'updater bug or crash; check the %s. For a detailed log of ' |
| 'update events, check the %s.' % |
| (EVENT_TYPE_DICT[expected['event_type']], reported, |
| self._WHERE_UPDATE_LOG, self._WHERE_OMAHA_LOG)) |
| if 'version' in mismatched_attrs: |
| return ('The DUT rebooted after the update but reports a different ' |
| 'image version than the one expected. This probably means ' |
| 'that the payload we applied was incorrect or corrupt.') |
| if 'previous_version' in mismatched_attrs: |
| return ('The DUT rebooted after the update and reports the ' |
| 'expected version. However, it reports a previous version ' |
| 'that is different from the one previously reported. This ' |
| 'is most likely a bug in update engine; check the %s.' % |
| self._WHERE_UPDATE_LOG) |
| |
| return 'A test bug occurred; inspect the test log.' |
| |
| |
| def _timeout_err(self, desc, timeout, event_type=None): |
| if event_type is not None: |
| desc += ' (%s)' % EVENT_TYPE_DICT[event_type] |
| return ('Failed to receive %s within %d seconds. This could be a ' |
| 'problem with the updater or a connectivity issue. For more ' |
| 'details, check the %s.' % |
| (desc, timeout, self._WHERE_UPDATE_LOG)) |
| |
| |
| def run_update_test(self, test_platform, test_conf): |
| """Runs the actual update test once preconditions are met. |
| |
| @param test_platform: TestPlatform implementation. |
| @param test_conf: A dictionary containing test configuration values |
| |
| @raises ExpectedUpdateEventChainFailed if we failed to verify an update |
| event. |
| """ |
| |
| # Record the active root partition. |
| source_active_slot = test_platform.get_active_slot() |
| logging.info('Source active slot: %s', source_active_slot) |
| |
| source_release = test_conf['source_release'] |
| target_release = test_conf['target_release'] |
| |
| # TODO(dhaddock): Reuse update_engine_performance_monitor |
| # script with chromite autoupdater. Can't use it here anymore because |
| # the DUT is restarted a bunch of times during the update and the |
| # process is killed before we can get the results back. |
| try: |
| # Update the DUT to the target image. |
| pid = test_platform.trigger_update(test_conf['target_payload_uri']) |
| |
| # Verify the host log that was returned from the update. |
| file_url = self._get_hostlog_file('devserver_hostlog_rootfs', pid) |
| |
| logging.info('Checking update steps with devserver hostlog file: ' |
| '%s' % file_url) |
| log_verifier = UpdateEventLogVerifier(file_url) |
| |
| # Verify chain of events in a successful update process. |
| chain = ExpectedUpdateEventChain() |
| chain.add_event( |
| ExpectedUpdateEvent( |
| version=source_release, |
| on_error=self._error_initial_check), |
| self._WAIT_FOR_INITIAL_UPDATE_CHECK_SECONDS, |
| on_timeout=self._timeout_err( |
| 'an initial update check', |
| self._WAIT_FOR_INITIAL_UPDATE_CHECK_SECONDS)) |
| chain.add_event( |
| ExpectedUpdateEvent( |
| event_type=EVENT_TYPE_DOWNLOAD_STARTED, |
| event_result=EVENT_RESULT_SUCCESS, |
| version=source_release, |
| on_error=self._error_download_started), |
| self._WAIT_FOR_DOWNLOAD_STARTED_SECONDS, |
| on_timeout=self._timeout_err( |
| 'a download started notification', |
| self._WAIT_FOR_DOWNLOAD_STARTED_SECONDS, |
| event_type=EVENT_TYPE_DOWNLOAD_STARTED)) |
| chain.add_event( |
| ExpectedUpdateEvent( |
| event_type=EVENT_TYPE_DOWNLOAD_FINISHED, |
| event_result=EVENT_RESULT_SUCCESS, |
| version=source_release, |
| on_error=self._error_download_finished), |
| self._WAIT_FOR_DOWNLOAD_COMPLETED_SECONDS, |
| on_timeout=self._timeout_err( |
| 'a download finished notification', |
| self._WAIT_FOR_DOWNLOAD_COMPLETED_SECONDS, |
| event_type=EVENT_TYPE_DOWNLOAD_FINISHED)) |
| chain.add_event( |
| ExpectedUpdateEvent( |
| event_type=EVENT_TYPE_UPDATE_COMPLETE, |
| event_result=EVENT_RESULT_SUCCESS, |
| version=source_release, |
| on_error=self._error_update_complete), |
| self._WAIT_FOR_UPDATE_COMPLETED_SECONDS, |
| on_timeout=self._timeout_err( |
| 'an update complete notification', |
| self._WAIT_FOR_UPDATE_COMPLETED_SECONDS, |
| event_type=EVENT_TYPE_UPDATE_COMPLETE)) |
| |
| log_verifier.verify_expected_events_chain(chain) |
| |
| except: |
| logging.fatal('ERROR: Failure occurred during the target update.') |
| raise |
| |
| if test_platform.oobe_triggers_update(): |
| # If DUT automatically checks for update during OOBE, |
| # checking the post-update CrOS version and slot is sufficient. |
| # This command checks the OS version. |
| # The slot is checked a little later, after the else block. |
| logging.info('Skipping post reboot update check.') |
| test_platform.verify_version(target_release) |
| else: |
| # Observe post-reboot update check, which should indicate that the |
| # image version has been updated. |
| # Verify the host log that was returned from the update. |
| file_url = self._get_hostlog_file('devserver_hostlog_reboot', pid) |
| |
| logging.info('Checking post-reboot devserver hostlogs: %s' % |
| file_url) |
| log_verifier = UpdateEventLogVerifier(file_url) |
| |
| chain = ExpectedUpdateEventChain() |
| expected_events = [ |
| ExpectedUpdateEvent( |
| event_type=EVENT_TYPE_UPDATE_COMPLETE, |
| event_result=EVENT_RESULT_SUCCESS_REBOOT, |
| version=target_release, |
| previous_version=source_release, |
| on_error=self._error_reboot_after_update), |
| # Newer versions send a "rebooted_after_update" message |
| # after reboot with the previous version instead of another |
| # "update_complete". |
| ExpectedUpdateEvent( |
| event_type=EVENT_TYPE_REBOOTED_AFTER_UPDATE, |
| event_result=EVENT_RESULT_SUCCESS, |
| version=target_release, |
| previous_version=source_release, |
| on_error=self._error_reboot_after_update), |
| ] |
| chain.add_event( |
| expected_events, |
| self._WAIT_FOR_UPDATE_CHECK_AFTER_REBOOT_SECONDS, |
| on_timeout=self._timeout_err( |
| 'a successful reboot notification', |
| self._WAIT_FOR_UPDATE_CHECK_AFTER_REBOOT_SECONDS, |
| event_type=EVENT_TYPE_UPDATE_COMPLETE)) |
| |
| log_verifier.verify_expected_events_chain(chain) |
| |
| # Make sure we're using a different slot after the update. |
| target_active_slot = test_platform.get_active_slot() |
| if target_active_slot == source_active_slot: |
| err_msg = 'The active image slot did not change after the update.' |
| if None in (source_release, target_release): |
| err_msg += (' The DUT likely rebooted into the old image, which ' |
| 'probably means that the payload we applied was ' |
| 'corrupt. But since we did not check the source ' |
| 'and/or target version we cannot say for sure.') |
| elif source_release == target_release: |
| err_msg += (' Given that the source and target versions are ' |
| 'identical, the DUT likely rebooted into the old ' |
| 'image. This probably means that the payload we ' |
| 'applied was corrupt.') |
| else: |
| err_msg += (' This is strange since the DUT reported the ' |
| 'correct target version. This is probably a system ' |
| 'bug; check the DUT system log.') |
| raise error.TestFail(err_msg) |
| |
| logging.info('Target active slot changed as expected: %s', |
| target_active_slot) |
| |
| logging.info('Update successful, test completed') |
| |
| |
| def run_once(self, host, test_conf): |
| """Performs a complete auto update test. |
| |
| @param host: a host object representing the DUT |
| @param test_conf: a dictionary containing test configuration values |
| |
| @raise error.TestError if anything went wrong with setting up the test; |
| error.TestFail if any part of the test has failed. |
| """ |
| self._host = host |
| logging.debug('The test configuration supplied: %s', test_conf) |
| |
| # Find a devserver to use. We first try to pick a devserver with the |
| # least load. In case all devservers' load are higher than threshold, |
| # fall back to the old behavior by picking a devserver based on the |
| # payload URI, with which ImageServer.resolve will return a random |
| # devserver based on the hash of the URI. |
| # The picked devserver needs to respect the location of the host if |
| # 'prefer_local_devserver' is set to True or 'restricted_subnets' is |
| # set. |
| hostname = self._host.hostname if self._host else None |
| least_loaded_devserver = dev_server.get_least_loaded_devserver( |
| hostname=hostname) |
| if least_loaded_devserver: |
| logging.debug('Choosing the least loaded devserver: %s', |
| least_loaded_devserver) |
| autotest_devserver = dev_server.ImageServer(least_loaded_devserver) |
| else: |
| logging.warning('No devserver meets the maximum load requirement. ' |
| 'Picking a random devserver to use.') |
| autotest_devserver = dev_server.ImageServer.resolve( |
| test_conf['target_payload_uri'], host.hostname) |
| devserver_hostname = urlparse.urlparse( |
| autotest_devserver.url()).hostname |
| |
| logging.info('Devserver chosen for this run: %s', devserver_hostname) |
| |
| # Obtain a test platform implementation. |
| test_platform = TestPlatform.create(host) |
| test_platform.initialize(autotest_devserver, self.job.resultdir) |
| |
| # Stage source images and update payloads onto the devserver. |
| staged_urls = test_platform.prep_artifacts(test_conf) |
| self._source_image_installed = bool(staged_urls.source_url) |
| |
| # Prepare the DUT (install source version etc). |
| test_platform.prep_device_for_update(test_conf['source_payload_uri']) |
| |
| # Start the update. |
| try: |
| self.run_update_test(test_platform, test_conf) |
| except ExpectedUpdateEventChainFailed: |
| self._dump_update_engine_log(test_platform) |
| raise |
| |
| test_platform.check_device_after_update() |
