tools/perf/profile_creators/small_profile_creator.py

# Copyright (c) 2013 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.

import os

from telemetry.core import util
from telemetry.page import page_set
from telemetry.page import profile_creator


class SmallProfileCreator(profile_creator.ProfileCreator):
  """
  Runs a browser through a series of operations to fill in a small test profile.
  """

  def __init__(self):
    super(SmallProfileCreator, self).__init__()
    typical_25 = os.path.join(util.GetBaseDir(), 'page_sets', 'typical_25.json')
    self._page_set = page_set.PageSet.FromFile(typical_25)

    # Open all links in the same tab save for the last _NUM_TABS links which
    # are each opened in a new tab.
    self._NUM_TABS = 5

  def TabForPage(self, page, browser):
    idx = page.page_set.pages.index(page)
    # The last _NUM_TABS pages open a new tab.
    if idx <= (len(page.page_set.pages) - self._NUM_TABS):
      return browser.tabs[0]
    else:
      return browser.tabs.New()

  def MeasurePage(self, _, tab, results):
    # Can't use WaitForDocumentReadyStateToBeComplete() here due to
    # crbug.com/280750 .
    tab.WaitForDocumentReadyStateToBeInteractiveOrBetter()