# Copyright 2014 Rackspace, Inc.
#
# 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 json
import mock
import requests
import six
from six.moves import http_client
from ironic.common import exception
from ironic.drivers.modules import agent_client
from ironic.tests import base
[docs]class MockResponse(object):
    status_code = http_client.OK
    def __init__(self, text):
        assert isinstance(text, six.string_types)
        self.text = text
[docs]    def json(self):
        return json.loads(self.text)  
[docs]class MockNode(object):
    def __init__(self):
        self.uuid = 'uuid'
        self.driver_internal_info = {
            'agent_url': "http://127.0.0.1:9999",
            'hardware_manager_version': {'generic': '1'}
        }
        self.instance_info = {}
[docs]    def as_dict(self):
        return {
            'uuid': self.uuid,
            'driver_internal_info': self.driver_internal_info,
            'instance_info': self.instance_info
        }  
[docs]class TestAgentClient(base.TestCase):
[docs]    def setUp(self):
        super(TestAgentClient, self).setUp()
        self.client = agent_client.AgentClient()
        self.client.session = mock.MagicMock(autospec=requests.Session)
        self.node = MockNode() 
[docs]    def test__get_command_url(self):
        command_url = self.client._get_command_url(self.node)
        expected = self.node.driver_internal_info['agent_url'] + '/v1/commands'
        self.assertEqual(expected, command_url) 
[docs]    def test__get_command_url_fail(self):
        del self.node.driver_internal_info['agent_url']
        self.assertRaises(exception.IronicException,
                          self.client._get_command_url,
                          self.node) 
[docs]    def test__get_command_body(self):
        expected = json.dumps({'name': 'prepare_image', 'params': {}})
        self.assertEqual(expected,
                         self.client._get_command_body('prepare_image', {})) 
[docs]    def test__command(self):
        response_data = {'status': 'ok'}
        response_text = json.dumps(response_data)
        self.client.session.post.return_value = MockResponse(response_text)
        method = 'standby.run_image'
        image_info = {'image_id': 'test_image'}
        params = {'image_info': image_info}
        url = self.client._get_command_url(self.node)
        body = self.client._get_command_body(method, params)
        response = self.client._command(self.node, method, params)
        self.assertEqual(response, response_data)
        self.client.session.post.assert_called_once_with(
            url,
            data=body,
            params={'wait': 'false'}) 
[docs]    def test__command_fail_json(self):
        response_text = 'this be not json matey!'
        self.client.session.post.return_value = MockResponse(response_text)
        method = 'standby.run_image'
        image_info = {'image_id': 'test_image'}
        params = {'image_info': image_info}
        url = self.client._get_command_url(self.node)
        body = self.client._get_command_body(method, params)
        self.assertRaises(exception.IronicException,
                          self.client._command,
                          self.node, method, params)
        self.client.session.post.assert_called_once_with(
            url,
            data=body,
            params={'wait': 'false'}) 
[docs]    def test__command_fail_post(self):
        error = 'Boom'
        self.client.session.post.side_effect = requests.RequestException(error)
        method = 'foo.bar'
        params = {}
        self.client._get_command_url(self.node)
        self.client._get_command_body(method, params)
        e = self.assertRaises(exception.IronicException,
                              self.client._command,
                              self.node, method, params)
        self.assertEqual('Error invoking agent command %(method)s for node '
                         '%(node)s. Error: %(error)s' %
                         {'method': method, 'node': self.node.uuid,
                          'error': error}, str(e)) 
[docs]    def test_get_commands_status(self):
        with mock.patch.object(self.client.session, 'get',
                               autospec=True) as mock_get:
            res = mock.MagicMock(spec_set=['json'])
            res.json.return_value = {'commands': []}
            mock_get.return_value = res
            self.assertEqual([], self.client.get_commands_status(self.node)) 
[docs]    def test_prepare_image(self):
        self.client._command = mock.MagicMock(spec_set=[])
        image_info = {'image_id': 'image'}
        params = {'image_info': image_info}
        self.client.prepare_image(self.node,
                                  image_info,
                                  wait=False)
        self.client._command.assert_called_once_with(
            node=self.node, method='standby.prepare_image',
            params=params, wait=False) 
[docs]    def test_prepare_image_with_configdrive(self):
        self.client._command = mock.MagicMock(spec_set=[])
        configdrive_url = 'http://swift/configdrive'
        self.node.instance_info['configdrive'] = configdrive_url
        image_info = {'image_id': 'image'}
        params = {
            'image_info': image_info,
            'configdrive': configdrive_url,
        }
        self.client.prepare_image(self.node,
                                  image_info,
                                  wait=False)
        self.client._command.assert_called_once_with(
            node=self.node, method='standby.prepare_image',
            params=params, wait=False) 
[docs]    def test_start_iscsi_target(self):
        self.client._command = mock.MagicMock(spec_set=[])
        iqn = 'fake-iqn'
        port = agent_client.DEFAULT_IPA_PORTAL_PORT
        wipe_disk_metadata = False
        params = {'iqn': iqn, 'portal_port': port,
                  'wipe_disk_metadata': wipe_disk_metadata}
        self.client.start_iscsi_target(self.node, iqn)
        self.client._command.assert_called_once_with(
            node=self.node, method='iscsi.start_iscsi_target',
            params=params, wait=True) 
[docs]    def test_start_iscsi_target_custom_port(self):
        self.client._command = mock.MagicMock(spec_set=[])
        iqn = 'fake-iqn'
        port = 3261
        wipe_disk_metadata = False
        params = {'iqn': iqn, 'portal_port': port,
                  'wipe_disk_metadata': wipe_disk_metadata}
        self.client.start_iscsi_target(self.node, iqn, portal_port=port)
        self.client._command.assert_called_once_with(
            node=self.node, method='iscsi.start_iscsi_target',
            params=params, wait=True) 
[docs]    def test_install_bootloader(self):
        self.client._command = mock.MagicMock(spec_set=[])
        root_uuid = 'fake-root-uuid'
        efi_system_part_uuid = 'fake-efi-system-part-uuid'
        params = {'root_uuid': root_uuid,
                  'efi_system_part_uuid': efi_system_part_uuid}
        self.client.install_bootloader(
            self.node, root_uuid, efi_system_part_uuid=efi_system_part_uuid)
        self.client._command.assert_called_once_with(
            node=self.node, method='image.install_bootloader', params=params,
            wait=True) 
[docs]    def test_get_clean_steps(self):
        self.client._command = mock.MagicMock(spec_set=[])
        ports = []
        expected_params = {
            'node': self.node.as_dict(),
            'ports': []
        }
        self.client.get_clean_steps(self.node,
                                    ports)
        self.client._command.assert_called_once_with(
            node=self.node, method='clean.get_clean_steps',
            params=expected_params, wait=True) 
[docs]    def test_execute_clean_step(self):
        self.client._command = mock.MagicMock(spec_set=[])
        ports = []
        step = {'priority': 10, 'step': 'erase_devices', 'interface': 'deploy'}
        expected_params = {
            'step': step,
            'node': self.node.as_dict(),
            'ports': [],
            'clean_version':
                self.node.driver_internal_info['hardware_manager_version']
        }
        self.client.execute_clean_step(step,
                                       self.node,
                                       ports)
        self.client._command.assert_called_once_with(
            node=self.node, method='clean.execute_clean_step',
            params=expected_params) 
[docs]    def test_power_off(self):
        self.client._command = mock.MagicMock(spec_set=[])
        self.client.power_off(self.node)
        self.client._command.assert_called_once_with(
            node=self.node, method='standby.power_off', params={}) 
[docs]    def test_sync(self):
        self.client._command = mock.MagicMock(spec_set=[])
        self.client.sync(self.node)
        self.client._command.assert_called_once_with(
            node=self.node, method='standby.sync', params={}, wait=True)