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 5 import logging 6 7 from autotest_lib.client.common_lib import error 8 from autotest_lib.client.common_lib.cros import chrome 9 from autotest_lib.client.cros import touch_playback_test_base 10 11 12 class touch_TouchscreenScroll( 13 touch_playback_test_base.touch_playback_test_base): 14 """Plays back scrolls and checks for correct page movement.""" 15 version = 1 16 17 _DIRECTIONS = ['down', 'up', 'right', 'left'] 18 _REVERSES = {'down': 'up', 'up': 'down', 'right': 'left', 'left': 'right'} 19 _FILENAME_FMT_STR = 'scroll-%s' 20 21 22 def _check_scroll_direction(self, filepath, expected): 23 """Playback and raise error if scrolling does not match down value. 24 25 @param filepath: Gesture file's complete path for playback. 26 @param expected: String, expected direction in which test page scroll 27 should move for the gesture file being played. 28 29 @raises TestFail if actual scrolling did not match expected. 30 31 """ 32 is_vertical = expected == 'up' or expected == 'down' 33 is_down_or_right = expected == 'down' or expected == 'right' 34 35 self._set_default_scroll_position(is_vertical) 36 self._playback(filepath, touch_type='touchscreen') 37 self._wait_for_scroll_position_to_settle(is_vertical) 38 delta = self._get_scroll_position(is_vertical) - self._DEFAULT_SCROLL 39 logging.info('Scroll delta was %d', delta) 40 41 # Check if movement occured in correct direction. 42 if ((is_down_or_right and delta <= 0) or 43 (not is_down_or_right and delta >= 0)): 44 raise error.TestFail('Page scroll was in wrong direction! ' 45 'Delta=%d' % delta) 46 47 48 def _is_testable(self): 49 """Return True if test can run on this device, else False. 50 51 @raises: TestError if host has no touchscreen. 52 53 """ 54 # Raise error if no touchscreen detected. 55 if not self._has_touchscreen: 56 raise error.TestError('No touchscreen found on this device!') 57 58 # Check if playback files are available on DUT to run test. 59 self._filepaths = self._find_test_files_from_directions( 60 'touchscreen', self._FILENAME_FMT_STR, self._DIRECTIONS) 61 if not self._filepaths: 62 logging.info('Missing gesture files, Aborting test.') 63 return False 64 65 return True 66 67 68 def run_once(self): 69 """Entry point of this test.""" 70 if not self._is_testable(): 71 return 72 73 # Log in and start test. 74 with chrome.Chrome(autotest_ext=True) as cr: 75 self._open_test_page(cr) 76 for direction in self._DIRECTIONS: 77 self._check_scroll_direction(self._filepaths[direction], 78 self._REVERSES[direction]) 79
