Refactoring benchmarks for perf bot efficiency.

tools/perf/perf_tools/smoothness_benchmark_unittest.py

 # Copyright (c) 2012 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.
 from telemetry import multi_page_benchmark
 from telemetry import multi_page_benchmark_unittest_base
-from perf_tools import scrolling_benchmark
+from perf_tools import smoothness_benchmark
 
 from telemetry import browser_finder
 from telemetry import options_for_unittests
 
 import os
 import urlparse
 
-class ScrollingBenchmarkUnitTest(
+class SmoothnessBenchmarkUnitTest(
   multi_page_benchmark_unittest_base.MultiPageBenchmarkUnitTestBase):
 
+  def testFirstPaintTimeMeasurement(self):
+    ps = self.CreatePageSetFromFileInUnittestDataDir('scrollable_page.html')
+
+    benchmark = smoothness_benchmark.SmoothnessBenchmark()
+    all_results = self.RunBenchmark(benchmark, ps)
+
+    self.assertEqual(0, len(all_results.page_failures))
+    self.assertEqual(1, len(all_results.page_results))
+
+    results0 = all_results.page_results[0]
+    if results0['first_paint'] == 'unsupported':
+      # This test can't run on content_shell.
+      return
+    self.assertTrue(results0['first_paint'] > 0)
+
   def testScrollingWithGpuBenchmarkingExtension(self):
     ps = self.CreatePageSetFromFileInUnittestDataDir('scrollable_page.html')
 
-    benchmark = scrolling_benchmark.ScrollingBenchmark()
+    benchmark = smoothness_benchmark.SmoothnessBenchmark()
     all_results = self.RunBenchmark(benchmark, ps)
 
     self.assertEqual(0, len(all_results.page_failures))
     self.assertEqual(1, len(all_results.page_results))
     results0 = all_results.page_results[0]
 
     self.assertTrue('dropped_percent' in results0)
     self.assertTrue('mean_frame_time' in results0)
 
   def testCalcResultsFromRAFRenderStats(self):
     rendering_stats = {'droppedFrameCount': 5,
                        'totalTimeInSeconds': 1,
                        'numAnimationFrames': 10,
                        'numFramesSentToScreen': 10}
     res = multi_page_benchmark.BenchmarkResults()
     res.WillMeasurePage(True)
-    scrolling_benchmark.CalcScrollResults(rendering_stats, res)
+    smoothness_benchmark.CalcScrollResults(rendering_stats, res)
     res.DidMeasurePage()
     self.assertEquals(50, res.page_results[0]['dropped_percent'])
     self.assertAlmostEquals(100, res.page_results[0]['mean_frame_time'], 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 = multi_page_benchmark.BenchmarkResults()
     res.WillMeasurePage(True)
-    scrolling_benchmark.CalcScrollResults(rendering_stats, res)
+    smoothness_benchmark.CalcScrollResults(rendering_stats, res)
     res.DidMeasurePage()
     self.assertEquals(0, res.page_results[0]['dropped_percent'])
     self.assertAlmostEquals(1000/60., res.page_results[0]['mean_frame_time'], 2)
 
   def testBoundingClientRect(self):
     options = options_for_unittests.Get()
     browser_to_create = browser_finder.FindBrowser(options)
     if not browser_to_create:
       raise Exception('No browser found, cannot continue test.')
 
@@ skipping 27 matching lines @@
                   __ScrollTest_GetBoundingVisibleRect(document.body).height"""))
         rect_right = int(tab.runtime.Evaluate("""
                   __ScrollTest_GetBoundingVisibleRect(document.body).left +
                   __ScrollTest_GetBoundingVisibleRect(document.body).width"""))
         viewport_width = int(tab.runtime.Evaluate('window.innerWidth'))
         viewport_height = int(tab.runtime.Evaluate('window.innerHeight'))
 
         self.assertTrue(rect_bottom <= viewport_height)
         self.assertTrue(rect_right <= viewport_width)
 
-class ScrollingBenchmarkWithoutGpuBenchmarkingUnitTest(
+class SmoothnessBenchmarkWithoutGpuBenchmarkingUnitTest(
   multi_page_benchmark_unittest_base.MultiPageBenchmarkUnitTestBase):
 
   def CustomizeOptionsForTest(self, options):
     options.no_gpu_benchmarking_extension = True
 
   def testScrollingWithoutGpuBenchmarkingExtension(self):
     ps = self.CreatePageSetFromFileInUnittestDataDir('scrollable_page.html')
 
-    benchmark = scrolling_benchmark.ScrollingBenchmark()
+    benchmark = smoothness_benchmark.SmoothnessBenchmark()
     benchmark.use_gpu_benchmarking_extension = False
 
     all_results = self.RunBenchmark(benchmark, ps)
 
     self.assertEqual(0, len(all_results.page_failures))
     self.assertEqual(1, len(all_results.page_results))
     results0 = all_results.page_results[0]
 
     self.assertTrue('dropped_percent' in results0)
     self.assertTrue('mean_frame_time' in results0)