| #!/usr/bin/env python2 |
| # -*- coding: utf-8 -*- |
| # Copyright (c) 2013 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. |
| |
| """Integration test to test the basic functionality of dev-install. |
| |
| This module contains a test that runs some sanity integration tests against |
| a VM. First it starts a VM test image and turns it into a base image by wiping |
| all of the stateful partition. Once done, runs dev_install to restore the |
| stateful partition. |
| """ |
| |
| from __future__ import print_function |
| |
| import argparse |
| import os |
| import shutil |
| import sys |
| import tempfile |
| |
| import constants |
| sys.path.append(constants.SOURCE_ROOT) |
| sys.path.append(constants.CROS_PLATFORM_ROOT) |
| |
| from chromite.lib import constants as chromite_constants |
| from chromite.lib import cros_build_lib |
| from chromite.lib import cros_logging as logging |
| from chromite.lib import dev_server_wrapper |
| from chromite.lib import image_lib |
| from chromite.lib import osutils |
| from chromite.lib import remote_access |
| from chromite.lib import vm |
| |
| from crostestutils.lib import test_helper |
| |
| |
| class TestError(Exception): |
| """Raised on any error during testing. It being raised is a test failure.""" |
| |
| |
| class DevModeTest(object): |
| """Wrapper for dev mode tests.""" |
| |
| # qemu hardcodes 10.0.2.2 as the host from the guest's point of view |
| # https://wiki.qemu.org/Documentation/Networking#User_Networking_.28SLIRP.29 |
| # When the host's eth0 IP address is also 10.0.2.*, and the guest tries to |
| # access it, the requests will be handled by qemu and never be seen by the |
| # host. Instead, let the guest always connect to 10.0.2.2. |
| HOST_IP_ADDRESS = '10.0.2.2' |
| |
| def __init__(self, image_path, board, binhost): |
| """Initializes DevModeTest. |
| |
| Args: |
| image_path: Filesystem path to the image to test. |
| board: Board of the image under test. |
| binhost: Binhost override. Binhost as defined here is where dev-install |
| go to search for binary packages. By default this will |
| be set to the devserver url of the host running this script. |
| If no override i.e. the default is ok, set to None. |
| """ |
| self.image_path = image_path |
| self.board = board |
| self.binhost = binhost |
| self.tmpdir = tempfile.mkdtemp('DevModeTest') |
| self.working_image_path = None |
| self.devserver = None |
| self.device = None |
| self.port = None |
| |
| def Cleanup(self): |
| """Cleans up any state at the end of the test.""" |
| try: |
| if self.devserver: |
| self.devserver.Stop() |
| self.devserver = None |
| if self.device: |
| self.device.Cleanup() |
| self.device = None |
| if self.port: |
| cros_build_lib.run(['./cros_vm', '--stop', '--ssh-port=%d' % self.port], |
| cwd=chromite_constants.CHROMITE_BIN_DIR, |
| check=False) |
| self.port = None |
| osutils.RmDir(self.tmpdir, ignore_missing=True) |
| self.tmpdir = None |
| except Exception: |
| logging.exception('Received error during cleanup') |
| |
| def _WipeDevInstall(self): |
| """Wipes the devinstall state.""" |
| logging.info('Wiping /usr/local/bin from the image.') |
| with image_lib.LoopbackPartitions( |
| self.working_image_path, destination=self.tmpdir) as image: |
| image.Mount(('STATE',), mount_opts=()) |
| dev_image_path = os.path.join(self.tmpdir, 'dir-STATE', 'dev_image') |
| osutils.RmDir(dev_image_path, sudo=True) |
| |
| def PrepareTest(self): |
| """Pre-test modification to the image and env to setup test.""" |
| logging.info('Setting up the image %s for vm testing.', self.image_path) |
| vm_path = vm.CreateVMImage(image=self.image_path, board=self.board, |
| updatable=False) |
| |
| logging.info('Making copy of the vm image %s to manipulate.', vm_path) |
| self.working_image_path = os.path.join(self.tmpdir, |
| os.path.basename(vm_path)) |
| shutil.copyfile(vm_path, self.working_image_path) |
| logging.debug('Copy of vm image stored at %s.', self.working_image_path) |
| |
| self._WipeDevInstall() |
| |
| self.port = remote_access.GetUnusedPort() |
| logging.info('Starting the vm on port %d.', self.port) |
| vm_cmd = ['./cros_vm', '--ssh-port=%d' % self.port, |
| '--image-path=%s' % self.working_image_path, '--start'] |
| cros_build_lib.run(vm_cmd, cwd=chromite_constants.CHROMITE_BIN_DIR) |
| |
| self.device = remote_access.ChromiumOSDevice( |
| remote_access.LOCALHOST, port=self.port, base_dir=self.tmpdir) |
| if not self.device.MountRootfsReadWrite(): |
| raise TestError('Failed to make rootfs writeable') |
| |
| if not self.binhost: |
| logging.info('Starting the devserver.') |
| self.devserver = dev_server_wrapper.DevServerWrapper() |
| self.devserver.Start() |
| self.binhost = self.devserver.GetDevServerURL( |
| ip=self.HOST_IP_ADDRESS, port=self.devserver.port, |
| sub_dir='static/pkgroot/%s/packages' % self.board) |
| |
| logging.info('Using binhost %s', self.binhost) |
| |
| def TestDevInstall(self): |
| """Tests that we can run dev-install and have python work afterwards.""" |
| try: |
| logging.info('Running dev install in the vm.') |
| self.device.run( |
| ['bash', '-l', '-c', |
| '"/usr/bin/dev_install --yes --binhost=%s"' % self.binhost]) |
| |
| logging.info('Verifying that all python versions work on the image.') |
| # Symlinks can be tricky, and running python from one place might work |
| # while it fails from another. Test all the prefixes (and $PATH). |
| for prefix in ('/usr/bin', '/usr/local/bin', '/usr/local/usr/bin', ''): |
| for prog in ('python', 'python2', 'python3'): |
| self.device.run(['sudo', '-u', 'chronos', '--', |
| os.path.join(prefix, prog), |
| '-c', '"print(\'hello world\')"']) |
| except (cros_build_lib.RunCommandError, |
| remote_access.SSHConnectionError) as e: |
| self.devserver.PrintLog() |
| logging.error('dev-install test failed. See devserver log above for more ' |
| 'details.') |
| raise TestError('dev-install test failed with: %s' % str(e)) |
| |
| def Run(self): |
| try: |
| self.PrepareTest() |
| self.TestDevInstall() |
| logging.info('All tests passed.') |
| finally: |
| self.Cleanup() |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser(description=__doc__) |
| parser.add_argument('--binhost', metavar='URL', |
| help='binhost override. By default, starts up a devserver' |
| ' and uses it as the binhost.') |
| parser.add_argument('board', nargs=1, help='board to use.') |
| parser.add_argument('image_path', nargs=1, help='path to test|vm image.') |
| parser.add_argument('-v', '--verbose', default=False, action='store_true', |
| help='Print out added debugging information') |
| options = parser.parse_args() |
| |
| test_helper.SetupCommonLoggingFormat(verbose=options.verbose) |
| DevModeTest(os.path.realpath(options.image_path[0]), options.board[0], |
| options.binhost).Run() |
| |
| if __name__ == '__main__': |
| main() |
