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 os 7 import time 8 9 from autotest_lib.client.bin import utils 10 from autotest_lib.client.common_lib.cros import chrome 11 from autotest_lib.client.cros import service_stopper 12 from autotest_lib.client.cros.graphics import graphics_utils 13 from autotest_lib.client.cros.image_comparison import rgb_image_comparer 14 from autotest_lib.client.cros.ui import ui_test_base 15 16 class ui_SystemTray(ui_test_base.ui_TestBase): 17 """ 18 Collects system tray screenshots. 19 20 See comments on parent class for overview of how things flow. 21 22 """ 23 24 def initialize(self): 25 """Perform necessary initialization prior to test run. 26 27 Private Attributes: 28 _services: service_stopper.ServiceStopper object 29 """ 30 # Do not switch off screen for screenshot utility. 31 self._services = service_stopper.ServiceStopper(['powerd']) 32 self._services.stop_services() 33 34 35 def cleanup(self): 36 self._services.restore_services() 37 38 39 def capture_screenshot(self, filepath): 40 """ 41 Sets the portion of the screenshot to crop. 42 Calls into take_screenshot_crop to take the screenshot and crop it. 43 44 self.logged_in controls which logged-in state we are testing when we 45 take the screenshot. 46 47 if None, we don't login at all 48 if True, we login as the test user 49 if False, we login as guest 50 51 For the logged in user we mask the profile photo so that the randomly 52 generated profile pictures don't break the tests. 53 54 @param filepath: path, fullpath to where the screenshot will be saved to 55 56 """ 57 58 w, h = graphics_utils.get_display_resolution() 59 box = (w - self.width, h - self.height, w, h) 60 61 if self.logged_in is None: 62 graphics_utils.take_screenshot_crop(filepath, box) 63 return 64 65 with chrome.Chrome(logged_in=self.logged_in): 66 # set up a pixel comparer 67 image_name = os.path.splitext(filepath)[0] 68 temp_file_path = '%s_temp.png' % image_name 69 comparer = rgb_image_comparer.RGBImageComparer( 70 rgb_pixel_threshold=0) 71 72 def has_animation_stopped(): 73 """ 74 Takes two screenshots. Checks if they are identical to 75 indicate the shelf has stop animating. 76 77 """ 78 79 graphics_utils.take_screenshot_crop(filepath, box) 80 graphics_utils.take_screenshot_crop(temp_file_path, box) 81 diff = comparer.compare(filepath, temp_file_path) 82 logging.debug("Pixel diff count: %d", diff.diff_pixel_count) 83 return diff.diff_pixel_count == 0 84 85 # crbug.com/476791 error when take screenshots too soon after login 86 time.sleep(30) 87 utils.poll_for_condition(has_animation_stopped, 88 timeout=30, 89 desc='end of system tray animation') 90 91 if self.logged_in and self.mask_points is not None: 92 self.draw_image_mask(filepath, self.mask_points) 93 94 95 def run_once(self, width, height, mask_points=None, logged_in=None): 96 self.width = width 97 self.height = height 98 self.logged_in = logged_in 99 self.mask_points = mask_points 100 101 if utils.get_board() != 'link': 102 logging.info('This test should only be run on link so exiting.') 103 return 104 105 self.run_screenshot_comparison_test() 106
