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#!/usr/bin/python2.4
# Copyright (c) 2006-2008 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.
"""Command for measuring how long pages take to load in a browser.
Prerequisites:
1. The command_line package from tools/site_compare
2. Either the IE BHO or Firefox extension (or both)
Installation:
1. Build the IE BHO, or call regsvr32 on a prebuilt binary
2. Add a file called "measurepageloadtimeextension@google.com" to
the default Firefox profile directory under extensions, containing
the path to the Firefox extension root
Invoke with the command line arguments as documented within
the command line.
"""
import command_line
import win32process
from drivers import windowing
from utils import browser_iterate
def CreateCommand(cmdline):
"""Inserts the command and arguments into a command line for parsing."""
cmd = cmdline.AddCommand(
["measure"],
"Measures how long a series of URLs takes to load in one or more browsers.",
None,
ExecuteMeasure)
browser_iterate.SetupIterationCommandLine(cmd)
cmd.AddArgument(
["-log", "--logfile"], "File to write output", type="string", required=True)
def ExecuteMeasure(command):
"""Executes the Measure command."""
def LogResult(url, proc, wnd, result):
"""Write the result of the browse to the log file."""
log_file.write(result)
log_file = open(command["--logfile"], "w")
browser_iterate.Iterate(command, LogResult)
# Close the log file and return. We're done.
log_file.close()
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