#!/usr/bin/env python

# Copyright (c) 2013 The Chromium OS 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 cStringIO import StringIO
import pexpect
import sys
import time

TIMEOUT=10

class Tee(object):
  def __init__(self, target):
    self._target = target

  def write(self, data):
    sys.stdout.write(data)
    self._target.write(data)

  def flush(self):
    sys.stdout.flush()
    self._target.flush()

log = StringIO()
test_name = sys.argv[1]
start_time = time.time()
child = pexpect.spawn('build/host/{0}/{0}.exe'.format(test_name),
                      timeout=TIMEOUT)
child.logfile = Tee(log)
result_id = child.expect([pexpect.TIMEOUT, 'Pass!', 'Fail!'])
elapsed_time = time.time() - start_time
failed = False
if result_id == 0:
  sys.stderr.write('Test %s timed out after %d seconds!\n' %
                   (test_name, TIMEOUT))
  failed = True
elif result_id == 1:
  sys.stderr.write('Test %s passed! (%.3f seconds)\n' %
                   (test_name, elapsed_time))
elif result_id == 2:
  sys.stderr.write('Test %s failed! (%.3f seconds)\n' %
                   (test_name, elapsed_time))
  failed = True

if failed:
  sys.stderr.write('\n====== Emulator output ======\n')
  sys.stderr.write(log.getvalue())
  sys.stderr.write('\n=============================\n')
  sys.exit(1)
else:
  sys.exit(0)