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      1 # Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import os, shutil, tempfile
      6 
      7 from autotest_lib.client.bin import test, utils
      8 from autotest_lib.client.common_lib import error
      9 from autotest_lib.client.cros import constants
     10 from autotest_lib.client.cros.graphics import graphics_utils
     11 
     12 
     13 class ChromeBinaryTest(test.test):
     14     """
     15     Base class for tests to run chrome test binaries without signing in and
     16     running Chrome.
     17     """
     18 
     19     CHROME_TEST_DEP = 'chrome_test'
     20     CHROME_SANDBOX = '/opt/google/chrome/chrome-sandbox'
     21     home_dir = None
     22 
     23     def setup(self):
     24         self.job.setup_dep([self.CHROME_TEST_DEP])
     25 
     26 
     27     def initialize(self):
     28         test_dep_dir = os.path.join(self.autodir, 'deps',
     29                                     self.CHROME_TEST_DEP)
     30         self.job.install_pkg(self.CHROME_TEST_DEP, 'dep', test_dep_dir)
     31 
     32         self.cr_source_dir = '%s/test_src' % test_dep_dir
     33         self.test_binary_dir = '%s/out/Release' % self.cr_source_dir
     34         self.home_dir = tempfile.mkdtemp()
     35 
     36 
     37     def cleanup(self):
     38         if self.home_dir:
     39             shutil.rmtree(self.home_dir, ignore_errors=True)
     40 
     41 
     42     def get_chrome_binary_path(self, binary_to_run):
     43         return os.path.join(self.test_binary_dir, binary_to_run)
     44 
     45 
     46     def run_chrome_test_binary(self, binary_to_run, extra_params='', prefix='',
     47                                as_chronos=True):
     48         """
     49         Run chrome test binary.
     50 
     51         @param binary_to_run: The name of the browser test binary.
     52         @param extra_params: Arguments for the browser test binary.
     53         @param prefix: Prefix to the command that invokes the test binary.
     54         @param as_chronos: Boolean indicating if the tests should run in a
     55             chronos shell.
     56 
     57         @raises: error.TestFail if there is error running the command.
     58         """
     59         binary = self.get_chrome_binary_path(binary_to_run)
     60         cmd = '%s/%s %s' % (self.test_binary_dir, binary_to_run, extra_params)
     61         env_vars = 'HOME=%s CR_SOURCE_ROOT=%s CHROME_DEVEL_SANDBOX=%s' % (
     62                 self.home_dir, self.cr_source_dir, self.CHROME_SANDBOX)
     63         cmd = '%s %s' % (env_vars, prefix + cmd)
     64 
     65         try:
     66             if utils.is_freon():
     67                 if as_chronos:
     68                     utils.system('su %s -c \'%s\'' % ('chronos', cmd))
     69                 else:
     70                     utils.system(cmd)
     71             else:
     72                 if as_chronos:
     73                     graphics_utils.xsystem(cmd, user='chronos')
     74                 else:
     75                     graphics_utils.xsystem(cmd)
     76         except error.CmdError as e:
     77             raise error.TestFail('%s failed! %s' % (binary_to_run, e))
     78 
     79 
     80 def nuke_chrome(func):
     81     """Decorator to nuke the Chrome browser processes."""
     82 
     83     def wrapper(*args, **kargs):
     84         open(constants.DISABLE_BROWSER_RESTART_MAGIC_FILE, 'w').close()
     85         try:
     86             try:
     87                 utils.nuke_process_by_name(
     88                     name=constants.BROWSER, with_prejudice=True)
     89             except error.AutoservPidAlreadyDeadError:
     90                 pass
     91             return func(*args, **kargs)
     92         finally:
     93             # Allow chrome to be restarted again later.
     94             os.unlink(constants.DISABLE_BROWSER_RESTART_MAGIC_FILE)
     95     return wrapper
     96