1#!/usr/bin/env python
2#
3# Copyright (C) 2019 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16#
17
18"""A test to check if dynamic partitions is enabled for new devices in Q."""
19
20import logging
21
22from vts.runners.host import asserts
23from vts.runners.host import base_test
24from vts.runners.host import test_runner
25from vts.utils.python.file import target_file_utils
26
27class VtsKernelCheckpointDTFstabTest(base_test.BaseTestClass):
28    """A test class to verify dynamic partitions are enabled."""
29
30    def setUpClass(self):
31        """Initializes device and shell."""
32        self.dut = self.android_devices[0]
33        self.shell = self.dut.shell
34
35    def testMetadataEarlyMounted(self):
36        """Checks metadata exists in device tree based fstab.
37
38        Userdata checkpoint requires metadata to be early mounted.
39        """
40        fstab = "/proc/device-tree/firmware/android/fstab"
41        if target_file_utils.Exists(fstab, self.shell):
42            asserts.assertTrue(target_file_utils.Exists(fstab + "/metadata",
43                                                        self.shell))
44        else:
45            logging.info("device is not using device tree fstab")
46
47if __name__ == "__main__":
48    test_runner.main()
49