• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# Copyright (c) 2010 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 glob, logging, os, sys, commands
6
7from autotest_lib.client.bin import test, utils
8from autotest_lib.client.common_lib import error
9
10class hardware_Keyboard(test.test):
11    """
12    Test the keyboard through the user mode /dev/input/event interface.
13    """
14    version = 1
15    dev_input_event_path = '/dev/input/event*'
16    supported_keys = ['Esc', 'F1', 'F2', 'F3', 'F4', 'F5','F6', 'F7', 'F8',
17                      'F9', 'F10', 'Grave', 'Minus', 'Equal', 'Backspace',
18                      '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
19                      'Tab', 'LeftBrace', 'RightBrace', 'BackSlash',
20                      'LeftMeta', 'Semicolon', 'Apostrophe', 'Enter',
21                      'LeftShift', 'Comma', 'Dot', 'Slash', 'RightShift',
22                      'LeftControl', 'LeftAlt', 'Space', 'RightAlt',
23                      'RightCtrl', 'Up', 'Down', 'Left', 'Right',
24                      'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P',
25                      'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L',
26                      'Z', 'X', 'C', 'V', 'B', 'N', 'M']
27    live_test_key = 'LeftMeta'
28    preserve_srcdir = True
29
30    def setup(self):
31        os.chdir(self.srcdir)
32        utils.make()
33
34    def _supported(self, event, key_name):
35        cmd = os.path.join(self.srcdir, 'evtest') + ' ' + event
36        cmd += ' -s ' + key_name
37        (status, output) = commands.getstatusoutput(cmd)
38        if status:
39            logging.error('Unsupported Key : %s' % key_name)
40            return False
41        logging.info('%s : %s' % (key_name, output))
42        return True
43
44    def run_once(self):
45        high_key_count = 0
46        high_key_event = ''
47        for event in glob.glob(hardware_Keyboard.dev_input_event_path):
48            # Find the event file with the most keys
49            cmd = os.path.join(self.srcdir, 'evtest') + ' ' + event
50            cmd += ' -n'
51            (status, output) = commands.getstatusoutput(cmd)
52            if status:  ## bad event, log the command's output as a warning
53                logging.warning("Bad event. cmd : %s" % cmd)
54                logging.warning(output)
55                continue
56            num_keys = int(output)
57            if (num_keys > high_key_count):
58                high_key_count = num_keys
59                high_key_event = event
60        logging.info('Event with most is %s with %d keys' % (high_key_event,
61                                                             high_key_count))
62        if (high_key_count < len(hardware_Keyboard.supported_keys)):
63            raise error.TestError('No suitable keyboard found.')
64        # Check that all necessary keyboard keys exist.
65        if not all(self._supported(high_key_event, key_name)
66                   for key_name in hardware_Keyboard.supported_keys):
67            raise error.TestError('Required key unsupported in %s' %
68                                  high_key_event)
69        # Test one live keystroke. Test will wait on user input.
70        cmd = os.path.join(self.srcdir, 'evtest') + ' ' + high_key_event
71        cmd += ' -k'
72        (status, output) = commands.getstatusoutput(cmd)
73        if status:
74            raise error.TestError('Key Capture Test failed : %s' % output);
75        if (output != hardware_Keyboard.live_test_key):
76            raise error.TestError('Incorrect key pressed : %s' % output);
77