src/tools/perf/metrics/test_page_measurement_results.py

   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 telemetry.page import page as page_module
   6 from telemetry.results import page_measurement_results
   7 from telemetry.value import scalar
   8
   9
  10 class TestPageMeasurementResults(
  11     page_measurement_results.PageMeasurementResults):
  12   def __init__(self, test):
  13     super(TestPageMeasurementResults, self).__init__()
  14     self.test = test
  15     page = page_module.Page("http://www.google.com", {})
  16     self.WillMeasurePage(page)
  17
  18   def GetPageSpecificValueNamed(self, name):
  19     values = [value for value in self.all_page_specific_values
  20          if value.name == name]
  21     assert len(values) == 1, 'Could not find value named %s' % name
  22     return values[0]
  23
  24   def AssertHasPageSpecificScalarValue(self, name, units, expected_value):
  25     value = self.GetPageSpecificValueNamed(name)
  26     self.test.assertEquals(units, value.units)
  27     self.test.assertTrue(isinstance(value, scalar.ScalarValue))
  28     self.test.assertEquals(expected_value, value.value)
  29
  30   def __str__(self):
  31     return '\n'.join([repr(x) for x in self.all_page_specific_values])