| #!/usr/bin/env python |
| # |
| # Copyright (C) 2018 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. |
| # |
| |
| """A test module to check system-as-root is enabled for new devices in P. |
| |
| The test logic is: |
| if precondition-first-api-level >= 28 (in AndroidTest.xml): |
| assert ( |
| ro.build.system_root_image is 'true' AND |
| /system mount point doesn't exist) |
| else: |
| assert True |
| """ |
| |
| |
| 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 |
| |
| |
| # The property to indicate the system image is also root image. |
| _SYSTEM_ROOT_IMAGE_PROP = "ro.build.system_root_image" |
| |
| |
| class VtsKernelSystemAsRootTest(base_test.BaseTestClass): |
| """A test class to verify system-as-root is enabled.""" |
| |
| def setUpClass(self): |
| """Initializes device and shell.""" |
| self._dut = self.android_devices[0] |
| self._shell = self._dut.shell |
| |
| def testSystemRootImageProperty(self): |
| """Checks ro.build.system_root_image is 'true'.""" |
| asserts.assertEqual("true", |
| self._dut.getProp(_SYSTEM_ROOT_IMAGE_PROP), |
| "%s is not true" % _SYSTEM_ROOT_IMAGE_PROP) |
| |
| def testNoSystemMountPoint(self): |
| """Checks there is no /system mount point.""" |
| # The format of /proc/mounts is: |
| # <partition> <mount point> <file system> <mount options> ... |
| results = self._shell.Execute( |
| "cat /proc/mounts | cut -d\" \" -f2") |
| mount_points = results[const.STDOUT][0].split() |
| logging.info('Mount points on the device: %s', mount_points) |
| asserts.assertFalse("/system" in mount_points, |
| "/system mount point shouldn't exist") |
| |
| |
| if __name__ == "__main__": |
| test_runner.main() |