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      1 # Copyright (c) 2014 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 
      5 import logging
      6 import time
      7 
      8 from autotest_lib.client.common_lib.cros import chrome
      9 from autotest_lib.client.cros.a11y import a11y_test_base
     10 
     11 
     12 class accessibility_Sanity(a11y_test_base.a11y_test_base):
     13     """Enables then disables all a11y features via accessibilityFeatures API."""
     14     version = 1
     15 
     16     # Features that do not have their own separate tests
     17     _FEATURE_LIST = [
     18         'largeCursor',
     19         'stickyKeys',
     20         'highContrast',
     21         'screenMagnifier',
     22         'autoclick',
     23         'virtualKeyboard'
     24     ]
     25 
     26 
     27     def _check_chromevox(self):
     28         """Run ChromeVox specific checks.
     29 
     30         Check the reported state of ChromeVox before/after enable and disable.
     31 
     32         """
     33         # ChromeVox is initially off.
     34         self._confirm_chromevox_state(False)
     35 
     36         # Turn ChromeVox on and check that all the pieces work.
     37         self._toggle_chromevox()
     38         self._confirm_chromevox_state(True)
     39 
     40         # Turn ChromeVox off.
     41         self._toggle_chromevox()
     42         self._confirm_chromevox_state(False)
     43 
     44 
     45     def run_once(self):
     46         """Entry point of this test."""
     47         extension_path = self._get_extension_path()
     48 
     49         with chrome.Chrome(extension_paths=[extension_path]) as cr:
     50             self._extension = cr.get_extension(extension_path)
     51 
     52             # Check specific features.
     53             self._check_chromevox()
     54 
     55             # Enable then disable all other accessibility features.
     56             for value in [True, False]:
     57                 for feature in self._FEATURE_LIST:
     58                     logging.info('Setting %s to %s.', feature, value)
     59                     self._set_feature(feature, value)
     60                     time.sleep(1)
     61