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._events.set_default_scroll_position(is_vertical) 36 start_scroll = self._events.get_scroll_position(is_vertical) 37 self._events.clear_previous_events() 38 39 self._playback(filepath, touch_type='touchscreen') 40 41 self._events.wait_for_events_to_complete() 42 end_scroll = self._events.get_scroll_position(is_vertical) 43 delta = end_scroll - start_scroll 44 logging.info('Scroll delta was %d (%d to %d)', 45 delta, start_scroll, end_scroll) 46 47 # Check if movement occured in correct direction. 48 if ((is_down_or_right and delta <= 0) or 49 (not is_down_or_right and delta >= 0)): 50 self._events.log_events() 51 raise error.TestFail('Page scroll was in wrong direction! ' 52 'Delta=%d' % delta) 53 54 55 def _is_testable(self): 56 """Return True if test can run on this device, else False. 57 58 @raises: TestError if host has no touchscreen. 59 60 """ 61 # Raise error if no touchscreen detected. 62 if not self._has_touchscreen: 63 raise error.TestError('No touchscreen found on this device!') 64 65 # Check if playback files are available on DUT to run test. 66 self._filepaths = self._find_test_files_from_directions( 67 'touchscreen', self._FILENAME_FMT_STR, self._DIRECTIONS) 68 if not self._filepaths: 69 logging.info('Missing gesture files, Aborting test.') 70 return False 71 72 return True 73 74 75 def run_once(self): 76 """Entry point of this test.""" 77 if not self._is_testable(): 78 return 79 80 # Log in and start test. 81 with chrome.Chrome(autotest_ext=True, 82 init_network_controller=True) as cr: 83 self._open_events_page(cr) 84 self._events.expand_page() 85 self._events.set_prevent_defaults(False) 86 for direction in self._DIRECTIONS: 87 self._check_scroll_direction(self._filepaths[direction], 88 self._REVERSES[direction]) 89
