# Copyright 2021 - 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.
"""Tests for restart."""
import sys

import unittest

from unittest import mock

from acloud import errors
from acloud.internal.lib import driver_test_lib
from acloud.internal.lib.ssh import Ssh
from acloud.list import list as list_instances
from acloud.powerwash import powerwash
from acloud.public import config
from acloud.public import report
from acloud.reconnect import reconnect
from acloud.restart import restart


class RestartTest(driver_test_lib.BaseDriverTest):
    """Test restart."""
    @mock.patch.object(sys, "exit")
    @mock.patch.object(restart, "RestartFromInstance")
    def testRun(self, mock_restart, mock_exit):
        """test Run."""
        cfg = mock.MagicMock()
        args = mock.MagicMock()
        instance_obj = mock.MagicMock()
        # Test case with provided instance name.
        args.instance_name = "instance_1"
        args.instance_id = 1
        args.powerwash = False
        self.Patch(config, "GetAcloudConfig", return_value=cfg)
        self.Patch(list_instances, "GetInstancesFromInstanceNames",
                   return_value=[instance_obj])
        restart.Run(args)
        mock_restart.assert_has_calls([
            mock.call(cfg, instance_obj, args.instance_id, args.powerwash)])

        # Test case for user select one instance to restart AVD.
        selected_instance = mock.MagicMock()
        self.Patch(list_instances, "GetCFRemoteInstances",
                   return_value=selected_instance)
        self.Patch(list_instances, "ChooseOneRemoteInstance",
                   return_value=selected_instance)
        args.instance_name = None
        restart.Run(args)
        mock_restart.assert_has_calls([
            mock.call(cfg, selected_instance, args.instance_id, args.powerwash)])

        # Test case for not support local instances.
        local_instances = mock.MagicMock()
        self.Patch(list_instances, "GetCFRemoteInstances",
                   return_value=None)
        self.Patch(list_instances, "GetLocalInstances",
                   return_value=local_instances)
        restart.Run(args)
        mock_exit.assert_called_once()

    # pylint: disable=no-member
    def testRestartFromInstance(self):
        """test RestartFromInstance."""
        cfg = mock.MagicMock()
        cfg.ssh_private_key_path = "fake_path"
        cfg.extra_args_ssh_tunnel = ""
        instance = mock.MagicMock()
        instance.ip = "0.0.0.0"
        instance.name = "ins-name"
        self.Patch(powerwash, "PowerwashDevice")
        self.Patch(reconnect, "ReconnectInstance")
        self.Patch(report, "Report")
        self.Patch(Ssh, "Run")
        # should powerwash
        restart.RestartFromInstance(cfg, instance, 1, True)
        powerwash.PowerwashDevice.assert_called_once()

        # should restart
        restart.RestartFromInstance(cfg, instance, 1, False)
        Ssh.Run.assert_called_once()

        # coverage for except
        self.Patch(Ssh, "Run",
                   side_effect=errors.DeviceConnectionError())
        restart.RestartFromInstance(cfg, instance, 1, False)


if __name__ == '__main__':
    unittest.main()