| # Copyright 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| import unittest |
| |
| from metrics import smoothness |
| from telemetry.page import page |
| from telemetry.page.page_measurement_results import PageMeasurementResults |
| |
| class SmoothnessMetricsUnitTest(unittest.TestCase): |
| |
| def testCalcResultsFromRAFRenderStats(self): |
| rendering_stats = {'droppedFrameCount': 5, |
| 'totalTimeInSeconds': 1, |
| 'numAnimationFrames': 10, |
| 'numFramesSentToScreen': 10} |
| res = PageMeasurementResults() |
| res.WillMeasurePage(page.Page('http://foo.com/', None)) |
| smoothness.CalcScrollResults(rendering_stats, res) |
| res.DidMeasurePage() |
| self.assertEquals(50, res.page_results[0]['dropped_percent'].value) |
| self.assertAlmostEquals( |
| 100, |
| res.page_results[0]['mean_frame_time'].value, 2) |
| |
| def testCalcResultsRealRenderStats(self): |
| rendering_stats = {'numFramesSentToScreen': 60, |
| 'globalTotalTextureUploadTimeInSeconds': 0, |
| 'totalProcessingCommandsTimeInSeconds': 0, |
| 'globalTextureUploadCount': 0, |
| 'droppedFrameCount': 0, |
| 'textureUploadCount': 0, |
| 'numAnimationFrames': 10, |
| 'totalPaintTimeInSeconds': 0.35374299999999986, |
| 'globalTotalProcessingCommandsTimeInSeconds': 0, |
| 'totalTextureUploadTimeInSeconds': 0, |
| 'totalRasterizeTimeInSeconds': 0, |
| 'totalTimeInSeconds': 1.0} |
| res = PageMeasurementResults() |
| res.WillMeasurePage(page.Page('http://foo.com/', None)) |
| smoothness.CalcScrollResults(rendering_stats, res) |
| res.DidMeasurePage() |
| self.assertEquals(0, res.page_results[0]['dropped_percent'].value) |
| self.assertAlmostEquals( |
| 1000 / 60., |
| res.page_results[0]['mean_frame_time'].value, 2) |
