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f867de71d0
Change-Id: I25066c75797ec7ce481ee096a2dc777d48634581 BUG=Get tree 0pen TEST=Ran it Review URL: http://codereview.chromium.org/6279002
659 lines
23 KiB
Python
Executable File
659 lines
23 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""This module runs a suite of Auto Update tests.
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The tests can be run on either a virtual machine or actual device depending
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on parameters given. Specific tests can be run by invoking --test_prefix.
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Verbose is useful for many of the tests if you want to see individual commands
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being run during the update process.
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"""
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import optparse
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import os
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import re
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import sys
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import thread
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import time
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import unittest
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import urllib
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sys.path.append(os.path.join(os.path.dirname(__file__), '../lib'))
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from cros_build_lib import Die
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from cros_build_lib import Info
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from cros_build_lib import ReinterpretPathForChroot
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from cros_build_lib import RunCommand
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from cros_build_lib import RunCommandCaptureOutput
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from cros_build_lib import Warning
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import cros_test_proxy
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class UpdateException(Exception):
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"""Exception thrown when _UpdateImage or _UpdateUsingPayload fail"""
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def __init__(self, code, stdout):
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self.code = code
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self.stdout = stdout
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class AUTest(object):
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"""Abstract interface that defines an Auto Update test."""
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verbose = False
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def setUp(self):
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unittest.TestCase.setUp(self)
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# Set these up as they are used often.
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self.crosutils = os.path.join(os.path.dirname(__file__), '..')
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self.crosutilsbin = os.path.join(os.path.dirname(__file__))
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self.download_folder = os.path.join(self.crosutils, 'latest_download')
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if not os.path.exists(self.download_folder):
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os.makedirs(self.download_folder)
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# -------- Helper functions ---------
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def GetStatefulChangeFlag(self, stateful_change):
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"""Returns the flag to pass to image_to_vm for the stateful change."""
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stateful_change_flag = ''
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if stateful_change:
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stateful_change_flag = '--stateful_update_flag=%s' % stateful_change
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return stateful_change_flag
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def _ParseGenerateTestReportOutput(self, output):
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"""Returns the percentage of tests that passed based on output."""
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percent_passed = 0
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lines = output.split('\n')
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for line in lines:
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if line.startswith("Total PASS:"):
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# FORMAT: ^TOTAL PASS: num_passed/num_total (percent%)$
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percent_passed = line.split()[3].strip('()%')
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Info('Percent of tests passed %s' % percent_passed)
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break
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return int(percent_passed)
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def AssertEnoughTestsPassed(self, unittest, output, percent_required_to_pass):
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"""Helper function that asserts a sufficient number of tests passed.
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Args:
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unittest: Handle to the unittest.
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output: stdout from a test run.
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percent_required_to_pass: percentage required to pass. This should be
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fall between 0-100.
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Returns:
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percent that passed.
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"""
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Info('Output from VerifyImage():')
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print >> sys.stderr, output
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sys.stderr.flush()
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percent_passed = self._ParseGenerateTestReportOutput(output)
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Info('Percent passed: %d vs. Percent required: %d' % (
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percent_passed, percent_required_to_pass))
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unittest.assertTrue(percent_passed >= percent_required_to_pass)
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return percent_passed
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def PerformUpdate(self, image_path, src_image_path='', stateful_change='old',
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proxy_port=None):
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"""Performs an update using _UpdateImage and reports any error.
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Subclasses should not override this method but override _UpdateImage
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instead.
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Args:
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image_path: Path to the image to update with. This image must be a test
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image.
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src_image_path: Optional. If set, perform a delta update using the
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image specified by the path as the source image.
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stateful_change: How to modify the stateful partition. Values are:
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'old': Don't modify stateful partition. Just update normally.
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'clean': Uses clobber-state to wipe the stateful partition with the
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exception of code needed for ssh.
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proxy_port: Port to have the client connect to. For use with
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CrosTestProxy.
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Raises an UpdateException if _UpdateImage returns an error.
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"""
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try:
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if not self.use_delta_updates:
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src_image_path = ''
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self._UpdateImage(image_path, src_image_path, stateful_change, proxy_port)
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except UpdateException as err:
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# If the update fails, print it out
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Warning(err.stdout)
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raise
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def AttemptUpdateWithPayloadExpectedFailure(self, payload, expected_msg):
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"""Attempt a payload update, expect it to fail with expected log"""
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try:
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self._UpdateUsingPayload(payload)
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except UpdateException as err:
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# Will raise ValueError if expected is not found.
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if re.search(re.escape(expected_msg), err.stdout, re.MULTILINE):
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return
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Warning("Didn't find '%s' in:" % expected_msg)
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Warning(err.stdout)
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self.fail('We managed to update when failure was expected')
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def AttemptUpdateWithFilter(self, filter):
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"""Update through a proxy, with a specified filter, and expect success."""
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self.PrepareBase(self.target_image_path)
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# The devserver runs at port 8080 by default. We assume that here, and
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# start our proxy at 8081. We then tell our update tools to have the
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# client connect to 8081 instead of 8080.
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proxy_port = 8081
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proxy = cros_test_proxy.CrosTestProxy(port_in=proxy_port,
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address_out='127.0.0.1',
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port_out=8080,
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filter=filter)
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proxy.serve_forever_in_thread()
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# This update is expected to fail...
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try:
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self.PerformUpdate(self.target_image_path, self.base_image_path,
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proxy_port=proxy_port)
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finally:
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proxy.shutdown()
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# -------- Functions that subclasses should override ---------
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@classmethod
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def ProcessOptions(cls, parser, options):
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"""Processes options.
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Static method that should be called from main. Subclasses should also
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call their parent method if they override it.
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"""
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cls.verbose = options.verbose
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cls.base_image_path = options.base_image
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cls.target_image_path = options.target_image
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cls.use_delta_updates = options.delta
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if options.quick_test:
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cls.verify_suite = 'build_RootFilesystemSize'
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else:
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cls.verify_suite = 'suite_Smoke'
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# Sanity checks.
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if not cls.base_image_path:
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parser.error('Need path to base image for vm.')
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elif not os.path.exists(cls.base_image_path):
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Die('%s does not exist' % cls.base_image_path)
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if not cls.target_image_path:
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parser.error('Need path to target image to update with.')
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elif not os.path.exists(cls.target_image_path):
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Die('%s does not exist' % cls.target_image_path)
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def PrepareBase(self, image_path):
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"""Prepares target with base_image_path."""
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pass
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def _UpdateImage(self, image_path, src_image_path='', stateful_change='old',
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proxy_port=None):
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"""Implementation of an actual update.
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See PerformUpdate for description of args. Subclasses must override this
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method with the correct update procedure for the class.
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"""
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pass
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def _UpdateUsingPayload(self, update_path, stateful_change='old',
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proxy_port=None):
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"""Updates target with the pre-generated update stored in update_path.
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Subclasses must override this method with the correct update procedure for
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the class.
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Args:
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update_path: Path to the image to update with. This directory should
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contain both update.gz, and stateful.image.gz
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proxy_port: Port to have the client connect to. For use with
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CrosTestProxy.
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"""
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pass
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def VerifyImage(self, percent_required_to_pass):
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"""Verifies the image with tests.
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Verifies that the test images passes the percent required. Subclasses must
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override this method with the correct update procedure for the class.
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Args:
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percent_required_to_pass: percentage required to pass. This should be
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fall between 0-100.
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Returns:
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Returns the percent that passed.
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"""
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pass
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# -------- Tests ---------
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def testUpdateKeepStateful(self):
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"""Tests if we can update normally.
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This test checks that we can update by updating the stateful partition
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rather than wiping it.
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"""
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# Just make sure some tests pass on original image. Some old images
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# don't pass many tests.
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self.PrepareBase(self.base_image_path)
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# TODO(sosa): move to 100% once we start testing using the autotest paired
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# with the dev channel.
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percent_passed = self.VerifyImage(10)
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# Update to - all tests should pass on new image.
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Info('Updating from base image on vm to target image.')
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self.PerformUpdate(self.target_image_path, self.base_image_path)
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self.VerifyImage(100)
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# Update from - same percentage should pass that originally passed.
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Info('Updating from updated image on vm back to base image.')
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self.PerformUpdate(self.base_image_path, self.target_image_path)
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self.VerifyImage(percent_passed)
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def testUpdateWipeStateful(self):
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"""Tests if we can update after cleaning the stateful partition.
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This test checks that we can update successfully after wiping the
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stateful partition.
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"""
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# Just make sure some tests pass on original image. Some old images
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# don't pass many tests.
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self.PrepareBase(self.base_image_path)
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# TODO(sosa): move to 100% once we start testing using the autotest paired
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# with the dev channel.
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percent_passed = self.VerifyImage(10)
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# Update to - all tests should pass on new image.
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Info('Updating from base image on vm to target image and wiping stateful.')
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self.PerformUpdate(self.target_image_path, self.base_image_path, 'clean')
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self.VerifyImage(100)
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# Update from - same percentage should pass that originally passed.
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Info('Updating from updated image back to base image and wiping stateful.')
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self.PerformUpdate(self.base_image_path, self.target_image_path, 'clean')
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self.VerifyImage(percent_passed)
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# TODO(sosa): Get test to work with verbose.
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def NotestPartialUpdate(self):
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"""Tests what happens if we attempt to update with a truncated payload."""
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# Preload with the version we are trying to test.
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self.PrepareBase(self.target_image_path)
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# Image can be updated at:
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# ~chrome-eng/chromeos/localmirror/autest-images
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url = 'http://gsdview.appspot.com/chromeos-localmirror/' \
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'autest-images/truncated_image.gz'
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payload = os.path.join(self.download_folder, 'truncated_image.gz')
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# Read from the URL and write to the local file
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urllib.urlretrieve(url, payload)
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expected_msg = 'download_hash_data == update_check_response_hash failed'
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self.AttemptUpdateWithPayloadExpectedFailure(payload, expected_msg)
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# TODO(sosa): Get test to work with verbose.
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def NotestCorruptedUpdate(self):
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"""Tests what happens if we attempt to update with a corrupted payload."""
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# Preload with the version we are trying to test.
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self.PrepareBase(self.target_image_path)
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# Image can be updated at:
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# ~chrome-eng/chromeos/localmirror/autest-images
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url = 'http://gsdview.appspot.com/chromeos-localmirror/' \
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'autest-images/corrupted_image.gz'
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payload = os.path.join(self.download_folder, 'corrupted.gz')
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# Read from the URL and write to the local file
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urllib.urlretrieve(url, payload)
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# This update is expected to fail...
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expected_msg = 'zlib inflate() error:-3'
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self.AttemptUpdateWithPayloadExpectedFailure(payload, expected_msg)
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def testInterruptedUpdate(self):
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"""Tests what happens if we interrupt payload delivery 3 times."""
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class InterruptionFilter(cros_test_proxy.Filter):
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"""This filter causes the proxy to interrupt the download 3 times
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It does this by closing the first three connections to transfer
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2M total in the outbound connection after they transfer the
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2M.
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"""
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def __init__(self):
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"""Defines variable shared across all connections"""
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self.close_count = 0
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def setup(self):
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"""Called once at the start of each connection."""
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self.data_size = 0
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def OutBound(self, data):
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"""Called once per packet for outgoing data.
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The first three connections transferring more than 2M
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outbound will be closed.
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"""
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if self.close_count < 3:
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if self.data_size > (2 * 1024 * 1024):
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self.close_count += 1
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return None
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self.data_size += len(data)
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return data
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self.AttemptUpdateWithFilter(InterruptionFilter())
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def testDelayedUpdate(self):
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"""Tests what happens if some data is delayed during update delivery"""
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class DelayedFilter(cros_test_proxy.Filter):
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"""Causes intermittent delays in data transmission.
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It does this by inserting 3 20 second delays when transmitting
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data after 2M has been sent.
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"""
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def setup(self):
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"""Called once at the start of each connection."""
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self.data_size = 0
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self.delay_count = 0
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def OutBound(self, data):
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"""Called once per packet for outgoing data.
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The first three packets after we reach 2M transferred
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are delayed by 20 seconds.
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"""
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if self.delay_count < 3:
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if self.data_size > (2 * 1024 * 1024):
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self.delay_count += 1
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time.sleep(20)
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self.data_size += len(data)
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return data
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self.AttemptUpdateWithFilter(DelayedFilter())
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def SimpleTest(self):
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"""A simple update that updates once from a base image to a target.
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We explicitly don't use test prefix so that isn't run by default. Can be
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run using test_prefix option.
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"""
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self.PrepareBase(self.base_image_path)
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self.PerformUpdate(self.target_image_path, self.base_image_path)
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self.VerifyImage(100)
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class RealAUTest(unittest.TestCase, AUTest):
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"""Test harness for updating real images."""
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def setUp(self):
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AUTest.setUp(self)
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@classmethod
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def ProcessOptions(cls, parser, options):
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"""Processes non-vm-specific options."""
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AUTest.ProcessOptions(parser, options)
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cls.remote = options.remote
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if not cls.remote:
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parser.error('We require a remote address for real tests.')
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def PrepareBase(self, image_path):
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"""Auto-update to base image to prepare for test."""
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self.PerformUpdate(image_path)
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def _UpdateImage(self, image_path, src_image_path='', stateful_change='old',
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proxy_port=None):
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"""Updates a remote image using image_to_live.sh."""
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stateful_change_flag = self.GetStatefulChangeFlag(stateful_change)
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cmd = ['%s/image_to_live.sh' % self.crosutils,
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'--image=%s' % image_path,
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'--remote=%s' % self.remote,
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stateful_change_flag,
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'--verify',
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'--src_image=%s' % src_image_path
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]
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if proxy_port:
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cmd.append('--proxy_port=%s' % proxy_port)
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if self.verbose:
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try:
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RunCommand(cmd)
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except Exception, e:
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raise UpdateException(1, e.message)
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else:
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(code, stdout, stderr) = RunCommandCaptureOutput(cmd)
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if code != 0:
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raise UpdateException(code, stdout)
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def _UpdateUsingPayload(self, update_path, stateful_change='old',
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proxy_port=None):
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"""Updates a remote image using image_to_live.sh."""
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stateful_change_flag = self.GetStatefulChangeFlag(stateful_change)
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cmd = ['%s/image_to_live.sh' % self.crosutils,
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'--payload=%s' % update_path,
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'--remote=%s' % self.remote,
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stateful_change_flag,
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'--verify',
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]
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if proxy_port:
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cmd.append('--proxy_port=%s' % proxy_port)
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if self.verbose:
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try:
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RunCommand(cmd)
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except Exception, e:
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raise UpdateException(1, e.message)
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else:
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(code, stdout, stderr) = RunCommandCaptureOutput(cmd)
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if code != 0:
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raise UpdateException(code, stdout)
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def VerifyImage(self, percent_required_to_pass):
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"""Verifies an image using run_remote_tests.sh with verification suite."""
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output = RunCommand([
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'%s/run_remote_tests.sh' % self.crosutils,
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'--remote=%s' % self.remote,
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self.verify_suite,
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], error_ok=True, enter_chroot=False, redirect_stdout=True)
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return self.AssertEnoughTestsPassed(self, output, percent_required_to_pass)
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class VirtualAUTest(unittest.TestCase, AUTest):
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"""Test harness for updating virtual machines."""
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vm_image_path = None
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# VM Constants.
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_FULL_VDISK_SIZE = 6072
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_FULL_STATEFULFS_SIZE = 3074
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_KVM_PID_FILE = '/tmp/harness_pid'
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def _KillExistingVM(self, pid_file):
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if os.path.exists(pid_file):
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Warning('Existing %s found. Deleting and killing process' %
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pid_file)
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RunCommand(['./cros_stop_vm', '--kvm_pid=%s' % pid_file],
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cwd=self.crosutilsbin)
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assert not os.path.exists(pid_file)
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def setUp(self):
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"""Unit test overriden method. Is called before every test."""
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AUTest.setUp(self)
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self._KillExistingVM(self._KVM_PID_FILE)
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@classmethod
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def ProcessOptions(cls, parser, options):
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"""Processes vm-specific options."""
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AUTest.ProcessOptions(parser, options)
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cls.board = options.board
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# Communicate flags to tests.
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cls.graphics_flag = ''
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if options.no_graphics: cls.graphics_flag = '--no_graphics'
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if not cls.board:
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parser.error('Need board to convert base image to vm.')
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def PrepareBase(self, image_path):
|
|
"""Creates an update-able VM based on base image."""
|
|
self.vm_image_path = '%s/chromiumos_qemu_image.bin' % os.path.dirname(
|
|
image_path)
|
|
|
|
Info('Creating: %s' % self.vm_image_path)
|
|
|
|
if not os.path.exists(self.vm_image_path):
|
|
Info('Qemu image %s not found, creating one.' % self.vm_image_path)
|
|
RunCommand(['%s/image_to_vm.sh' % self.crosutils,
|
|
'--full',
|
|
'--from=%s' % ReinterpretPathForChroot(
|
|
os.path.dirname(image_path)),
|
|
'--vdisk_size=%s' % self._FULL_VDISK_SIZE,
|
|
'--statefulfs_size=%s' % self._FULL_STATEFULFS_SIZE,
|
|
'--board=%s' % self.board,
|
|
'--test_image'], enter_chroot=True)
|
|
else:
|
|
Info('Using existing VM image %s' % self.vm_image_path)
|
|
|
|
Info('Testing for %s' % self.vm_image_path)
|
|
self.assertTrue(os.path.exists(self.vm_image_path))
|
|
|
|
def _UpdateImage(self, image_path, src_image_path='', stateful_change='old',
|
|
proxy_port=None):
|
|
"""Updates VM image with image_path."""
|
|
stateful_change_flag = self.GetStatefulChangeFlag(stateful_change)
|
|
if src_image_path == self.base_image_path:
|
|
src_image_path = self.vm_image_path
|
|
|
|
cmd = ['%s/cros_run_vm_update' % self.crosutilsbin,
|
|
'--update_image_path=%s' % image_path,
|
|
'--vm_image_path=%s' % self.vm_image_path,
|
|
'--snapshot',
|
|
self.graphics_flag,
|
|
'--persist',
|
|
'--kvm_pid=%s' % self._KVM_PID_FILE,
|
|
stateful_change_flag,
|
|
'--src_image=%s' % src_image_path,
|
|
]
|
|
|
|
if proxy_port:
|
|
cmd.append('--proxy_port=%s' % proxy_port)
|
|
|
|
if self.verbose:
|
|
try:
|
|
RunCommand(cmd)
|
|
except Exception, e:
|
|
raise UpdateException(1, e.message)
|
|
else:
|
|
(code, stdout, stderr) = RunCommandCaptureOutput(cmd)
|
|
if code != 0:
|
|
raise UpdateException(code, stdout)
|
|
|
|
def _UpdateUsingPayload(self, update_path, stateful_change='old',
|
|
proxy_port=None):
|
|
"""Updates a vm image using cros_run_vm_update."""
|
|
stateful_change_flag = self.GetStatefulChangeFlag(stateful_change)
|
|
cmd = ['%s/cros_run_vm_update' % self.crosutilsbin,
|
|
'--payload=%s' % update_path,
|
|
'--vm_image_path=%s' % self.vm_image_path,
|
|
'--snapshot',
|
|
self.graphics_flag,
|
|
'--persist',
|
|
'--kvm_pid=%s' % self._KVM_PID_FILE,
|
|
stateful_change_flag,
|
|
]
|
|
|
|
if proxy_port:
|
|
cmd.append('--proxy_port=%s' % proxy_port)
|
|
|
|
if self.verbose:
|
|
try:
|
|
RunCommand(cmd)
|
|
except Exception, e:
|
|
raise UpdateException(1, e.message)
|
|
else:
|
|
(code, stdout, stderr) = RunCommandCaptureOutput(cmd)
|
|
if code != 0:
|
|
raise UpdateException(code, stdout)
|
|
|
|
def VerifyImage(self, percent_required_to_pass):
|
|
"""Runs vm smoke suite to verify image."""
|
|
# image_to_live already verifies lsb-release matching. This is just
|
|
# for additional steps.
|
|
|
|
commandWithArgs = ['%s/cros_run_vm_test' % self.crosutilsbin,
|
|
'--image_path=%s' % self.vm_image_path,
|
|
'--snapshot',
|
|
'--persist',
|
|
'--kvm_pid=%s' % self._KVM_PID_FILE,
|
|
self.verify_suite,
|
|
]
|
|
|
|
if self.graphics_flag:
|
|
commandWithArgs.append(self.graphics_flag)
|
|
|
|
output = RunCommand(commandWithArgs, error_ok=True, enter_chroot=False,
|
|
redirect_stdout=True)
|
|
return self.AssertEnoughTestsPassed(self, output, percent_required_to_pass)
|
|
|
|
|
|
def main():
|
|
parser = optparse.OptionParser()
|
|
parser.add_option('-b', '--base_image',
|
|
help='path to the base image.')
|
|
parser.add_option('-r', '--board',
|
|
help='board for the images.')
|
|
parser.add_option('--no_delta', action='store_false', default=True,
|
|
dest='delta',
|
|
help='Disable using delta updates.')
|
|
parser.add_option('--no_graphics', action='store_true',
|
|
help='Disable graphics for the vm test.')
|
|
parser.add_option('-m', '--remote',
|
|
help='Remote address for real test.')
|
|
parser.add_option('-q', '--quick_test', default=False, action='store_true',
|
|
help='Use a basic test to verify image.')
|
|
parser.add_option('-t', '--target_image',
|
|
help='path to the target image.')
|
|
parser.add_option('--test_prefix', default='test',
|
|
help='Only runs tests with specific prefix i.e. '
|
|
'testFullUpdateWipeStateful.')
|
|
parser.add_option('-p', '--type', default='vm',
|
|
help='type of test to run: [vm, real]. Default: vm.')
|
|
parser.add_option('--verbose', default=True, action='store_true',
|
|
help='Print out rather than capture output as much as '
|
|
'possible.')
|
|
(options, leftover_args) = parser.parse_args()
|
|
|
|
if leftover_args:
|
|
parser.error('Found extra options we do not support: %s' % leftover_args)
|
|
|
|
if options.type == 'vm': test_class = VirtualAUTest
|
|
elif options.type == 'real': test_class = RealAUTest
|
|
else: parser.error('Could not parse harness type %s.' % options.type)
|
|
|
|
test_class.ProcessOptions(parser, options)
|
|
|
|
test_loader = unittest.TestLoader()
|
|
test_loader.testMethodPrefix = options.test_prefix
|
|
test_suite = test_loader.loadTestsFromTestCase(test_class)
|
|
test_result = unittest.TextTestRunner(verbosity=2).run(test_suite)
|
|
|
|
if not test_result.wasSuccessful():
|
|
Die('Test harness was not successful')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|