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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
5from measurements import repaint
6from telemetry.core import wpr_modes
7from telemetry.page import page as page_module
8from telemetry.unittest import options_for_unittests
9from telemetry.unittest import page_test_test_case
10from telemetry.unittest import test
11
12
13class 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
22class 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