1# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5import gobject
6from dbus.mainloop.glib import DBusGMainLoop
7
8
9from autotest_lib.client.bin import test
10from autotest_lib.client.common_lib import error
11from autotest_lib.client.common_lib.cros import policy, session_manager
12from autotest_lib.client.cros import constants, cros_ui, cryptohome, ownership
13
14
15class login_GuestAndActualSession(test.test):
16    """Ensure that the session_manager correctly handles ownership when a guest
17       signs in before a real user.
18    """
19    version = 1
20
21
22    def initialize(self):
23        super(login_GuestAndActualSession, self).initialize()
24        policy.install_protobufs(self.autodir, self.job)
25        # Ensure a clean beginning.
26        ownership.restart_ui_to_clear_ownership_files()
27
28        bus_loop = DBusGMainLoop(set_as_default=True)
29        self._session_manager = session_manager.connect(bus_loop)
30        self._listener = session_manager.OwnershipSignalListener(
31                gobject.MainLoop())
32        self._listener.listen_for_new_key_and_policy()
33
34
35    def run_once(self):
36        owner = 'first_user@nowhere.com'
37
38        cryptohome.mount_guest()
39        self._session_manager.StartSession(constants.GUEST_USER, '')
40        cryptohome.ensure_clean_cryptohome_for(owner)
41        self._session_manager.StartSession(owner, '')
42        self._listener.wait_for_signals(desc='Device ownership complete.')
43
44        # Ensure that the first real user got to be the owner.
45        retrieved_policy = policy.get_policy(self._session_manager)
46        if retrieved_policy is None: raise error.TestFail('Policy not found')
47        policy.compare_policy_response(retrieved_policy, owner=owner)
48
49
50    def cleanup(self):
51        # Testing is done, so just stop the UI instead of calling StopSession.
52        # The latter can fail if Chrome is hanging: https://crbug.com/876197
53        cros_ui.stop(allow_fail=True)
54        cros_ui.start(allow_fail=True, wait_for_login_prompt=False)
55