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#!/usr/bin/env python
# Copyright 2016 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.
from __future__ import absolute_import
import os
import logging
import subprocess
import platform
import time
def ShouldStartXvfb():
# TODO(crbug.com/973847): Note that you can locally change this to return
# False to diagnose timeouts for dev server tests.
return platform.system() == 'Linux'
def StartXvfb():
display = ':99'
xvfb_command = ['Xvfb', display, '-screen', '0', '1024x769x24', '-ac']
xvfb_process = subprocess.Popen(
xvfb_command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
time.sleep(0.2)
returncode = xvfb_process.poll()
if returncode is None:
os.environ['DISPLAY'] = display
else:
logging.error('Xvfb did not start, returncode: %s, stdout:\n%s',
returncode, xvfb_process.stdout.read())
xvfb_process = None
return xvfb_process
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