1 # Copyright 2013 The Chromium 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 """Runs a Google Maps pixel test. 6 Performs several common navigation actions on the map (pan, zoom, rotate) then 7 captures a screenshot and compares selected pixels against expected values""" 8 9 import json 10 import optparse 11 import os 12 13 import cloud_storage_test_base 14 import maps_expectations 15 16 from telemetry import test 17 from telemetry.core import bitmap 18 from telemetry.core import util 19 from telemetry.page import page 20 from telemetry.page import page_set 21 from telemetry.page import page_test 22 # pylint: disable=W0401,W0614 23 from telemetry.page.actions.all_page_actions import * 24 25 class _MapsValidator(cloud_storage_test_base.ValidatorBase): 26 def CustomizeBrowserOptions(self, options): 27 options.AppendExtraBrowserArgs('--enable-gpu-benchmarking') 28 29 def ValidatePage(self, page, tab, results): 30 # TODO: This should not be necessary, but it's not clear if the test is 31 # failing on the bots in it's absence. Remove once we can verify that it's 32 # safe to do so. 33 _MapsValidator.SpinWaitOnRAF(tab, 3) 34 35 if not tab.screenshot_supported: 36 raise page_test.Failure('Browser does not support screenshot capture') 37 screenshot = tab.Screenshot(5) 38 if not screenshot: 39 raise page_test.Failure('Could not capture screenshot') 40 41 dpr = tab.EvaluateJavaScript('window.devicePixelRatio') 42 expected = self._ReadPixelExpectations(page) 43 self._ValidateScreenshotSamples( 44 page.display_name, screenshot, expected, dpr) 45 46 @staticmethod 47 def SpinWaitOnRAF(tab, iterations, timeout = 60): 48 waitScript = r""" 49 window.__spinWaitOnRAFDone = false; 50 var iterationsLeft = %d; 51 52 function spin() { 53 iterationsLeft--; 54 if (iterationsLeft == 0) { 55 window.__spinWaitOnRAFDone = true; 56 return; 57 } 58 window.requestAnimationFrame(spin); 59 } 60 window.requestAnimationFrame(spin); 61 """ % iterations 62 63 def IsWaitComplete(): 64 return tab.EvaluateJavaScript('window.__spinWaitOnRAFDone') 65 66 tab.ExecuteJavaScript(waitScript) 67 util.WaitFor(IsWaitComplete, timeout) 68 69 def _ReadPixelExpectations(self, page): 70 expectations_path = os.path.join(page._base_dir, page.pixel_expectations) 71 with open(expectations_path, 'r') as f: 72 json_contents = json.load(f) 73 return json_contents 74 75 76 class MapsPage(page.Page): 77 def __init__(self, page_set, base_dir): 78 super(MapsPage, self).__init__( 79 url='http://localhost:10020/tracker.html', 80 page_set=page_set, 81 base_dir=base_dir, 82 name='Maps.maps_002') 83 self.pixel_expectations = 'data/maps_002_expectations.json' 84 85 def RunNavigateSteps(self, action_runner): 86 action_runner.NavigateToPage(self) 87 action_runner.WaitForJavaScriptCondition('window.testDone', timeout=180) 88 89 90 class Maps(cloud_storage_test_base.TestBase): 91 """Google Maps pixel tests.""" 92 test = _MapsValidator 93 94 def CreateExpectations(self, page_set): 95 return maps_expectations.MapsExpectations() 96 97 def CreatePageSet(self, options): 98 page_set_path = os.path.join( 99 util.GetChromiumSrcDir(), 'content', 'test', 'gpu', 'page_sets') 100 ps = page_set.PageSet(archive_data_file='data/maps.json', 101 make_javascript_deterministic=False, 102 file_path=page_set_path) 103 ps.AddPage(MapsPage(ps, ps.base_dir)) 104 return ps 105
