Home | History | Annotate | Download | only in measurements 
      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 import os
      5 import StringIO
      6 import unittest
      7 
      8 from measurements import loading_measurement_analyzer
      9 from telemetry.core import util
     10 
     11 class LoadingMeasurementAnalyzerUnitTest(unittest.TestCase):
     12 
     13   # TODO(tonyg): Remove this backfill when we can assume python 2.7 everywhere.
     14   def assertIn(self, first, second, _=None):
     15     self.assertTrue(first in second,
     16                     msg="'%s' not found in '%s'" % (first, second))
     17 
     18   def testLoadingProfile(self):
     19     output = StringIO.StringIO()
     20     csv_path = os.path.join(
     21         util.GetChromiumSrcDir(),
     22         'tools', 'perf', 'measurements','test_data', 'loading_profile.csv')
     23     loading_measurement_analyzer.main([csv_path], stdout=output)
     24     output = output.getvalue()
     25 
     26     # Get the summary right.
     27     self.assertIn('Total URLs: 9', output)
     28     self.assertIn('Total page load time: 51s', output)
     29     self.assertIn('Average page load time: 5621ms', output)
     30 
     31     # Spot check a few samples.
     32     self.assertIn('WTF::IntHash::hash:  1359797948period  1.1%', output)
     33     self.assertIn('WebCore::rangesIntersect:   648335678period  0.5%', output)
     34     self.assertIn('v8::internal::Scanner::Scan:    19668346period  0.0', output)
     35 
     36   def testLoadingTimeline(self):
     37     output = StringIO.StringIO()
     38     csv_path = os.path.join(
     39         util.GetChromiumSrcDir(),
     40         'tools', 'perf', 'measurements','test_data', 'loading_timeline.csv')
     41     loading_measurement_analyzer.main([csv_path], stdout=output)
     42     output = output.getvalue()
     43 
     44     # Get the summary right.
     45     self.assertIn('Total URLs: 9', output)
     46     self.assertIn('Total page load time: 4s', output)
     47     self.assertIn('Average page load time: 422ms', output)
     48     self.assertIn('Total CPU time: 4s', output)
     49     self.assertIn('Average CPU time: 430ms', output)
     50 
     51     # Spot check a few samples.
     52     self.assertIn('EvaluateScript:           0s  19.0%', output)
     53     self.assertIn('ParseHTML:           0s  9.4%', output)
     54     self.assertIn('GCEvent:           0s  3.7%', output)
     55