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#!/usr/bin/env python
# Copyright 2017 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.
import logging
import os
import posixpath
import shutil
import sys
import tempfile
import unittest
if __name__ == '__main__':
sys.path.append(
os.path.abspath(
os.path.join(os.path.dirname(__file__), '..', '..', '..')))
from devil import base_error
from devil import devil_env
from devil.android import device_temp_file
from devil.android import device_test_case
from devil.android import device_utils
from devil.android.tools import system_app
logger = logging.getLogger(__name__)
class SystemAppDeviceTest(device_test_case.DeviceTestCase):
PACKAGE = 'com.google.android.webview'
def setUp(self):
super(SystemAppDeviceTest, self).setUp()
self._device = device_utils.DeviceUtils(self.serial)
self._original_paths = self._device.GetApplicationPaths(self.PACKAGE)
self._apk_cache_dir = tempfile.mkdtemp()
# Host location -> device location
self._cached_apks = {}
for o in self._original_paths:
h = os.path.join(self._apk_cache_dir, posixpath.basename(o))
self._device.PullFile(o, h, timeout=60)
self._cached_apks[h] = o
def tearDown(self):
final_paths = self._device.GetApplicationPaths(self.PACKAGE)
if self._original_paths != final_paths:
try:
self._device.Uninstall(self.PACKAGE)
except Exception: # pylint: disable=broad-except
pass
with system_app.EnableSystemAppModification(self._device):
for cached_apk, install_path in self._cached_apks.iteritems():
try:
with device_temp_file.DeviceTempFile(self._device.adb) as tmp:
self._device.adb.Push(cached_apk, tmp.name)
self._device.RunShellCommand(['mv', tmp.name, install_path],
as_root=True,
check_return=True)
except base_error.BaseError:
logger.warning('Failed to reinstall %s',
os.path.basename(cached_apk))
try:
shutil.rmtree(self._apk_cache_dir)
except IOError:
logger.error('Unable to remove app cache directory.')
super(SystemAppDeviceTest, self).tearDown()
def _check_preconditions(self):
if not self._original_paths:
self.skipTest(
'%s is not installed on %s' % (self.PACKAGE, str(self._device)))
if not any(p.startswith('/system/') for p in self._original_paths):
self.skipTest('%s is not installed in a system location on %s' %
(self.PACKAGE, str(self._device)))
def testReplace(self):
self._check_preconditions()
replacement = devil_env.config.FetchPath(
'empty_system_webview', device=self._device)
with system_app.ReplaceSystemApp(self._device, self.PACKAGE, replacement):
replaced_paths = self._device.GetApplicationPaths(self.PACKAGE)
self.assertNotEqual(self._original_paths, replaced_paths)
restored_paths = self._device.GetApplicationPaths(self.PACKAGE)
self.assertEqual(self._original_paths, restored_paths)
def testRemove(self):
self._check_preconditions()
system_app.RemoveSystemApps(self._device, [self.PACKAGE])
removed_paths = self._device.GetApplicationPaths(self.PACKAGE)
self.assertEqual([], removed_paths)
if __name__ == '__main__':
unittest.main()
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