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1# Copyright 2015 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 logging
6import re
7
8from autotest_lib.client.bin import utils
9from autotest_lib.client.common_lib import error
10from autotest_lib.client.cros.bluetooth import bluetooth_semiauto_helper
11
12
13class bluetooth_IDCheck(bluetooth_semiauto_helper.BluetoothSemiAutoHelper):
14    """Checks whether the Bluetooth ID and Alias are in the correct format."""
15    version = 1
16
17    # Boards which only support bluetooth version 3 and below
18    _BLUETOOTH_3_BOARDS = ['x86-mario', 'x86-zgb']
19
20    # Boards which are not shipped to customers and don't need an id.
21    _REFERENCE_ONLY = ['rambi', 'nyan', 'oak', 'reef']
22
23    def warmup(self):
24        """Overwrite parent warmup; no need to log in."""
25        pass
26
27    def _check_id(self, adapter_info):
28        """Fail if the Bluetooth ID is not in the correct format.
29
30        @param adapter_info: a dict of information about this device's adapter
31        @raises: error.TestFail if incorrect format is found.
32
33        """
34        modalias = adapter_info['Modalias']
35        logging.info('Saw Bluetooth ID of: %s', modalias)
36
37        if self._device in self._BLUETOOTH_3_BOARDS:
38            bt_format = 'bluetooth:v00E0p24..d0300'
39        else:
40            bt_format = 'bluetooth:v00E0p24..d0400'
41
42        if not re.match(bt_format, modalias):
43            raise error.TestFail('%s does not match expected format: %s'
44                                 % (modalias, bt_format))
45
46    def _check_name(self, adapter_info):
47        """Fail if the Bluetooth name is not in the correct format.
48
49        @param adapter_info: a dict of information about this device's adapter
50        @raises: error.TestFail if incorrect format is found.
51
52        """
53        alias = adapter_info['Alias']
54        logging.info('Saw Bluetooth Alias of: %s', alias)
55
56        device_type = utils.get_device_type().lower()
57        alias_format = '%s_[a-z0-9]{4}' % device_type
58        if not re.match(alias_format, alias.lower()):
59            raise error.TestFail('%s does not match expected format: %s'
60                                 % (alias, alias_format))
61
62    def run_once(self):
63        """Entry point of this test."""
64        if not self.supports_bluetooth():
65            return
66
67        self._device = utils.get_board()
68        if self._device in self._REFERENCE_ONLY:
69            return
70
71        self.poll_adapter_presence()
72        adapter_info = self._get_adapter_info()
73        self._check_id(adapter_info)
74        self._check_name(adapter_info)
75