blob: 4feb330a98f05ee846ec09c72e3556354a81deb6 [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Simple script for xvfb_unittest to launch.
This script outputs formatted data to stdout for the xvfb unit tests
to read and compare with expected output.
from __future__ import print_function
import os
import signal
import sys
import time
def print_signal(sig, *_):
# print_function does not guarantee its output won't be interleaved
# with other logging elsewhere, but it does guarantee its output
# will appear intact. Because the tests parse via starts_with, prefix
# with a newline. These tests were previously flaky due to output like
# > Signal: 1 <other messages>.
print('\nSignal :{}'.format(sig))
if __name__ == '__main__':
signal.signal(signal.SIGTERM, print_signal)
signal.signal(signal.SIGINT, print_signal)
# test the subprocess display number.
print('\nDisplay :{}'.format(os.environ.get('DISPLAY', 'None')))
if len(sys.argv) > 1 and sys.argv[1] == '--sleep':
time.sleep(2) # gives process time to receive signal.