# 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.

from autotest_lib.client.common_lib import utils

AUTHOR = "Chromium OS"
NAME = "autoupdate_Rollback"
TIME = "MEDIUM"
TEST_CATEGORY = "Functional"
TEST_CLASS = "platform"
TEST_TYPE = "server"
ATTRIBUTES = "suite:au"
BUG_TEMPLATE = {
    'cc': ['chromeos-installer-alerts@google.com'],
    'components': ['Internals>Installer'],
}

DOC = """
This is a rollback test for Chrome OS releases. It first updates a machine and
then invokes rollback to boot from its previously booted partition. It tests
rollback using the update_engine_client rather than manipulating the UI.

Setup for this test is exactly like platform_RebootAfterUpdate. Namely:

Arg:
  job_repo_url: repo url to use to find image to update from -- assumes caller
                has staged image. By default if host[repo_job_url] is set, it'll
                use that. This overrides that value. This value must follow
                the package_url_pattern in the global config.

To run locally:
  1) Setup your devserver in your shadow config that your DUT can reach.
  2) Start your devserver and stage the image you want for example:
     http://localhost:8080/stage?archive_url=\
     gs://chromeos-image-archive/parrot-release/R32-4793.0.0&\
     artifacts=full_payload (and leave it on).
  3) Run with test_that etc passing
     args="job_repo_url=http://<your_hostname>:8080/static/\
     parrot-release/R32-4793.0.0/autotest/packages"

For example:

test_that -b parrot --args="job_repo_url=http://<your_machine>:8080/static/\
parrot-release/R32-4793.0.0/autotest/packages" --fast \
<dut_ip> autoupdate_Rollback
"""

args_dict = utils.args_to_dict(args)
job_repo_url = args_dict.get('job_repo_url')


def run_test(machine):
    """Execute a test configuration on a given machine."""
    host = hosts.create_host(machine)
    job.run_test("autoupdate_Rollback", host=host,
                 job_repo_url=job_repo_url)


# Invoke parallel tests.
parallel_simple(run_test, machines)