#!/usr/bin/env python
#
# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import logging
from vts.runners.host import asserts
from vts.runners.host import base_test
from vts.runners.host import const
from vts.runners.host import test_runner
from vts.utils.python.controllers import android_device
from vts.utils.python.file import file_utils
HWBINDER_PATH = "/dev/hwbinder"
class VtsKernelHwBinderTest(base_test.BaseTestClass):
"""Test case to validate existence of hwbinder node.
"""
def setUpClass(self):
self.dut = self.registerController(android_device)[0]
self.dut.shell.InvokeTerminal(
"VtsKernelHwBinderTest") # creates a remote shell instance.
self.shell = self.dut.shell.VtsKernelHwBinderTest
def testHwbinderExistence(self):
"""Checks that hwbinder node exists.
"""
logging.info("Testing existence of %s", HWBINDER_PATH)
asserts.assertTrue(
file_utils.Exists(HWBINDER_PATH, self.shell),
"%s: File does not exist." % HWBINDER_PATH)
try:
permissions = file_utils.GetPermission(HWBINDER_PATH, self.shell)
asserts.assertTrue(file_utils.IsReadWrite(permissions),
"%s: File has invalid permissions (%s)" %
(HWBINDER_PATH, permissions))
except (ValueError, IOError) as e:
asserts.fail("Failed to assert permissions: %s" % str(e))
if __name__ == "__main__":
test_runner.main()