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# 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.
"""This measurement runs a blink performance test and reports the results."""
import os
import sys
from telemetry.core import util
from telemetry.page import page_measurement
from telemetry.page import page_set
def CreatePageSetFromPath(path):
assert os.path.exists(path)
page_set_dict = {'pages': []}
def _AddPage(path):
if not path.endswith('.html'):
return
if '../' in open(path, 'r').read():
# If the page looks like it references its parent dir, include it.
page_set_dict['serving_dirs'] = [os.path.dirname(os.path.dirname(path))]
page_set_dict['pages'].append({'url':
'file://' + path.replace('\\', '/')})
def _AddDir(dir_path, skipped):
for candidate_path in os.listdir(dir_path):
if candidate_path == 'resources':
continue
candidate_path = os.path.join(dir_path, candidate_path)
if candidate_path.startswith(tuple([os.path.join(path, s)
for s in skipped])):
continue
if os.path.isdir(candidate_path):
_AddDir(candidate_path, skipped)
else:
_AddPage(candidate_path)
if os.path.isdir(path):
skipped = []
skipped_file = os.path.join(path, 'Skipped')
if os.path.exists(skipped_file):
for line in open(skipped_file, 'r').readlines():
line = line.strip()
if line and not line.startswith('#'):
skipped.append(line.replace('/', os.sep))
_AddDir(path, skipped)
else:
_AddPage(path)
return page_set.PageSet.FromDict(page_set_dict, os.getcwd() + os.sep)
class BlinkPerf(page_measurement.PageMeasurement):
def __init__(self):
super(BlinkPerf, self).__init__('')
with open(os.path.join(os.path.dirname(__file__),
'blink_perf.js'), 'r') as f:
self._blink_perf_js = f.read()
def CreatePageSet(self, args, options):
if len(args) < 2:
print 'Must specify a file or directory to run.'
sys.exit(1)
page_set_arg = args[1]
if not os.path.exists(page_set_arg):
print '%s does not exist.' % page_set_arg
sys.exit(1)
return CreatePageSetFromPath(page_set_arg)
@property
def results_are_the_same_on_every_page(self):
return False
def WillNavigateToPage(self, page, tab):
page.script_to_evaluate_on_commit = self._blink_perf_js
def CustomizeBrowserOptions(self, options):
options.AppendExtraBrowserArg('--js-flags=--expose_gc')
def MeasurePage(self, page, tab, results):
def _IsDone():
return tab.EvaluateJavaScript('testRunner.isDone')
util.WaitFor(_IsDone, 600)
log = tab.EvaluateJavaScript('document.getElementById("log").innerHTML')
for line in log.splitlines():
if not line.startswith('values '):
continue
parts = line.split()
values = [float(v.replace(',', '')) for v in parts[1:-1]]
units = parts[-1]
metric = page.display_url.split('.')[0].replace('/', '_')
results.Add(metric, units, values)
break
print log
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