#
# 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.

"""
Test class for DRAC Power Driver
"""

import mock

from ironic.common import exception
from ironic.common import states
from ironic.db import api as dbapi
from ironic.drivers.modules.drac import client as drac_client
from ironic.drivers.modules.drac import common as drac_common
from ironic.drivers.modules.drac import power as drac_power
from ironic.drivers.modules.drac import resource_uris
from ironic.tests import base
from ironic.tests.db import utils as db_utils
from ironic.tests.drivers.drac import utils as test_utils

INFO_DICT = db_utils.get_test_drac_info()


@mock.patch.object(drac_client, 'pywsman')
@mock.patch.object(drac_power, 'pywsman')
class DracPowerInternalMethodsTestCase(base.TestCase):

    def setUp(self):
        super(DracPowerInternalMethodsTestCase, self).setUp()
        driver_info = INFO_DICT
        db_node = db_utils.get_test_node(driver='fake_drac',
                                         driver_info=driver_info,
                                         instance_uuid='instance_uuid_123')
        self.dbapi = dbapi.get_instance()
        self.node = self.dbapi.create_node(db_node)

    def test__get_power_state(self, mock_power_pywsman, mock_client_pywsman):
        result_xml = test_utils.build_soap_xml([{'EnabledState': '2'}],
                                             resource_uris.DCIM_ComputerSystem)
        mock_xml = test_utils.mock_wsman_root(result_xml)
        mock_pywsman_client = mock_client_pywsman.Client.return_value
        mock_pywsman_client.enumerate.return_value = mock_xml

        self.assertEqual(states.POWER_ON,
                         drac_power._get_power_state(self.node))

        mock_pywsman_client.enumerate.assert_called_once_with(mock.ANY,
            mock.ANY, resource_uris.DCIM_ComputerSystem)

    def test__set_power_state(self, mock_power_pywsman, mock_client_pywsman):
        result_xml = test_utils.build_soap_xml([{'ReturnValue':
                                                     drac_common.RET_SUCCESS}],
                                             resource_uris.DCIM_ComputerSystem)
        mock_xml = test_utils.mock_wsman_root(result_xml)
        mock_pywsman_client = mock_client_pywsman.Client.return_value
        mock_pywsman_client.invoke.return_value = mock_xml

        mock_pywsman_clientopts = mock_power_pywsman.ClientOptions.return_value

        drac_power._set_power_state(self.node, states.POWER_ON)

        mock_pywsman_clientopts.add_selector.assert_has_calls([
            mock.call('CreationClassName', 'DCIM_ComputerSystem'),
            mock.call('Name', 'srv:system')
        ])
        mock_pywsman_clientopts.add_property.assert_called_once_with(
            'RequestedState', '2')

        mock_pywsman_client.invoke.assert_called_once_with(mock.ANY,
            resource_uris.DCIM_ComputerSystem, 'RequestStateChange')

    def test__set_power_state_fail(self, mock_power_pywsman,
                                   mock_client_pywsman):
        result_xml = test_utils.build_soap_xml([{'ReturnValue':
                                                         drac_common.RET_ERROR,
                                                'Message': 'error message'}],
                                             resource_uris.DCIM_ComputerSystem)

        mock_xml = test_utils.mock_wsman_root(result_xml)
        mock_pywsman_client = mock_client_pywsman.Client.return_value
        mock_pywsman_client.invoke.return_value = mock_xml

        mock_pywsman_clientopts = mock_power_pywsman.ClientOptions.return_value

        self.assertRaises(exception.DracOperationError,
                          drac_power._set_power_state, self.node,
                          states.POWER_ON)

        mock_pywsman_clientopts.add_selector.assert_has_calls([
            mock.call('CreationClassName', 'DCIM_ComputerSystem'),
            mock.call('Name', 'srv:system')
        ])
        mock_pywsman_clientopts.add_property.assert_called_once_with(
            'RequestedState', '2')

        mock_pywsman_client.invoke.assert_called_once_with(mock.ANY,
            resource_uris.DCIM_ComputerSystem, 'RequestStateChange')


class DracPowerTestCase(base.TestCase):

    def setUp(self):
        super(DracPowerTestCase, self).setUp()
        driver_info = INFO_DICT
        db_node = db_utils.get_test_node(driver='fake_drac',
                                         driver_info=driver_info,
                                         instance_uuid='instance_uuid_123')
        self.dbapi = dbapi.get_instance()
        self.node = self.dbapi.create_node(db_node)

    def test_get_properties(self):
        expected = drac_common.COMMON_PROPERTIES
        driver = drac_power.DracPower()
        self.assertEqual(expected, driver.get_properties())

    @mock.patch.object(drac_power, '_get_power_state')
    def test_get_power_state(self, mock_get_power_state):
        mock_get_power_state.return_value = states.POWER_ON
        driver = drac_power.DracPower()
        task = mock.Mock()
        task.node.return_value = self.node

        self.assertEqual(states.POWER_ON, driver.get_power_state(task))
        mock_get_power_state.assert_called_once_with(task.node)

    @mock.patch.object(drac_power, '_set_power_state')
    def test_set_power_state(self, mock_set_power_state):
        driver = drac_power.DracPower()
        task = mock.Mock()
        task.node.return_value = self.node

        driver.set_power_state(task, states.POWER_ON)
        mock_set_power_state.assert_called_once_with(task.node,
                                                     states.POWER_ON)

    @mock.patch.object(drac_power, '_set_power_state')
    def test_reboot(self, mock_set_power_state):
        driver = drac_power.DracPower()
        task = mock.Mock()
        task.node.return_value = self.node

        driver.reboot(task)
        mock_set_power_state.assert_called_once_with(task.node,
                                                     states.REBOOT)
