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      1 # Copyright 2014 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 from measurements import repaint
      6 from telemetry.core import wpr_modes
      7 from telemetry.page import page as page_module
      8 from telemetry.unittest import options_for_unittests
      9 from telemetry.unittest import page_test_test_case
     10 from telemetry.unittest import test
     11 
     12 
     13 class TestRepaintPage(page_module.Page):
     14   def __init__(self, page_set, base_dir):
     15     super(TestRepaintPage, self).__init__('file://blank.html',
     16                                           page_set, base_dir)
     17 
     18   def RunRepaint(self, action_runner):
     19     action_runner.RepaintContinuously(seconds=2)
     20 
     21 
     22 class RepaintUnitTest(page_test_test_case.PageTestTestCase):
     23   """Smoke test for repaint measurement
     24 
     25      Runs repaint measurement on a simple page and verifies
     26      that all metrics were added to the results. The test is purely functional,
     27      i.e. it only checks if the metrics are present and non-zero.
     28   """
     29 
     30   def setUp(self):
     31     self._options = options_for_unittests.GetCopy()
     32     self._options.browser_options.wpr_mode = wpr_modes.WPR_OFF
     33 
     34   def testRepaint(self):
     35     ps = self.CreateEmptyPageSet()
     36     ps.AddPage(TestRepaintPage(ps, ps.base_dir))
     37     measurement = repaint.Repaint()
     38     results = self.RunMeasurement(measurement, ps, options=self._options)
     39     self.assertEquals(0, len(results.failures))
     40 
     41     frame_times = results.FindAllPageSpecificValuesNamed('frame_times')
     42     self.assertEquals(len(frame_times), 1)
     43     self.assertGreater(frame_times[0].GetRepresentativeNumber(), 0)
     44 
     45     mean_frame_time = results.FindAllPageSpecificValuesNamed('mean_frame_time')
     46     self.assertEquals(len(mean_frame_time), 1)
     47     self.assertGreater(mean_frame_time[0].GetRepresentativeNumber(), 0)
     48 
     49     jank = results.FindAllPageSpecificValuesNamed('jank')
     50     self.assertEquals(len(jank), 1)
     51     self.assertGreater(jank[0].GetRepresentativeNumber(), 0)
     52 
     53     mostly_smooth = results.FindAllPageSpecificValuesNamed('mostly_smooth')
     54     self.assertEquals(len(mostly_smooth), 1)
     55     self.assertGreaterEqual(mostly_smooth[0].GetRepresentativeNumber(), 0)
     56 
     57   @test.Disabled('android')
     58   def testCleanUpTrace(self):
     59     self.TestTracingCleanedUp(repaint.Repaint, self._options)
     60