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# Copyright (c) 2016 Citrix Systems
# All Rights Reserved.
#
# 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 mock
import os
from os_xenapi.tests.plugins import plugin_test
import time
class FakeUnplugException(Exception):
def __init__(self, details):
self.details = details
class PluginlibDom0(plugin_test.PluginTestBase):
def setUp(self):
super(PluginlibDom0, self).setUp()
self.dom0_pluginlib = self.load_plugin("dom0_pluginlib.py")
@mock.patch.object(os.path, 'exists')
def test_configure_logging_log_dir_not_exist(self, mock_path_exist):
name = 'fake_name'
mock_Logger_setLevel = self.mock_patch_object(
self.dom0_pluginlib.logging.Logger, 'setLevel')
mock_sysh_setLevel = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler, 'setLevel')
mock_Formatter = self.mock_patch_object(
self.dom0_pluginlib.logging, 'Formatter')
mock_sysh_setFormatter = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler, 'setFormatter')
mock_Logger_addHandler = self.mock_patch_object(
self.dom0_pluginlib.logging.Logger, 'addHandler')
mock_socket = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler,
'_connect_unixsocket')
mock_path_exist.return_value = False
self.dom0_pluginlib.configure_logging(name)
self.assertTrue(mock_Logger_setLevel.called)
self.assertFalse(mock_sysh_setLevel.called)
self.assertFalse(mock_Formatter.called)
self.assertFalse(mock_sysh_setFormatter.called)
self.assertFalse(mock_Logger_addHandler.called)
self.assertFalse(mock_socket.called)
@mock.patch.object(os.path, 'exists')
def test_configure_logging_log(self, mock_path_exist):
name = 'fake_name'
mock_Logger_setLevel = self.mock_patch_object(
self.dom0_pluginlib.logging.Logger, 'setLevel')
mock_sysh_setLevel = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler, 'setLevel')
mock_Formatter = self.mock_patch_object(
self.dom0_pluginlib.logging, 'Formatter')
mock_sysh_setFormatter = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler, 'setFormatter')
mock_Logger_addHandler = self.mock_patch_object(
self.dom0_pluginlib.logging.Logger, 'addHandler')
mock_socket = self.mock_patch_object(
self.dom0_pluginlib.logging.handlers.SysLogHandler,
'_connect_unixsocket')
mock_path_exist.return_value = True
self.dom0_pluginlib.configure_logging(name)
self.assertTrue(mock_Logger_setLevel.called)
self.assertTrue(mock_sysh_setLevel.called)
self.assertTrue(mock_Formatter.called)
self.assertTrue(mock_sysh_setFormatter.called)
self.assertTrue(mock_Logger_addHandler.called)
self.assertTrue(mock_socket.called)
def test_exists_ok(self):
fake_args = {'k1': 'v1'}
self.assertEqual('v1', self.dom0_pluginlib.exists(fake_args, 'k1'))
def test_exists_exception(self):
fake_args = {'k1': 'v1'}
self.assertRaises(self.dom0_pluginlib.ArgumentError,
self.dom0_pluginlib.exists,
fake_args,
'no_key')
def test_optional_exist(self):
fake_args = {'k1': 'v1'}
self.assertEqual('v1',
self.dom0_pluginlib.optional(fake_args, 'k1'))
def test_optional_none(self):
fake_args = {'k1': 'v1'}
self.assertIsNone(self.dom0_pluginlib.optional(fake_args,
'no_key'))
def test_get_domain_0(self):
mock_get_this_host = self.mock_patch_object(
self.session.xenapi.session,
'get_this_host',
return_val='fake_host_ref')
mock_get_vm_records = self.mock_patch_object(
self.session.xenapi.VM,
'get_all_records_where',
return_val={"fake_vm_ref": "fake_value"})
ret_value = self.dom0_pluginlib._get_domain_0(self.session)
self.assertTrue(mock_get_this_host.called)
self.assertTrue(mock_get_vm_records.called)
self.assertEqual('fake_vm_ref', ret_value)
def test_with_vdi_in_dom0(self):
self.mock_patch_object(
self.dom0_pluginlib,
'_get_domain_0',
return_val='fake_dom0_ref')
mock_vbd_create = self.mock_patch_object(
self.session.xenapi.VBD,
'create',
return_val='fake_vbd_ref')
mock_vbd_plug = self.mock_patch_object(
self.session.xenapi.VBD,
'plug')
self.mock_patch_object(
self.session.xenapi.VBD,
'get_device',
return_val='fake_device_xvda')
mock_vbd_unplug_with_retry = self.mock_patch_object(
self.dom0_pluginlib,
'_vbd_unplug_with_retry')
mock_vbd_destroy = self.mock_patch_object(
self.session.xenapi.VBD,
'destroy')
def handle_function(vbd):
# the fake vbd handle function
self.assertEqual(vbd, 'fake_device_xvda')
self.assertTrue(mock_vbd_plug.called)
self.assertFalse(mock_vbd_unplug_with_retry.called)
return 'function_called'
fake_vdi = 'fake_vdi'
return_value = self.dom0_pluginlib.with_vdi_in_dom0(
self.session, fake_vdi, False, handle_function)
self.assertEqual('function_called', return_value)
self.assertTrue(mock_vbd_plug.called)
self.assertTrue(mock_vbd_unplug_with_retry.called)
self.assertTrue(mock_vbd_destroy.called)
args, kwargs = mock_vbd_create.call_args
self.assertEqual('fake_dom0_ref', args[0]['VM'])
self.assertEqual('RW', args[0]['mode'])
def test_vbd_unplug_with_retry_success_at_first_time(self):
self.dom0_pluginlib._vbd_unplug_with_retry(self.session,
'fake_vbd_ref')
self.assertEqual(1, self.session.xenapi.VBD.unplug.call_count)
def test_vbd_unplug_with_retry_detached_already(self):
error = FakeUnplugException(['DEVICE_ALREADY_DETACHED'])
self.session.xenapi.VBD.unplug.side_effect = error
self.dom0_pluginlib.XenAPI.Failure = FakeUnplugException
self.dom0_pluginlib._vbd_unplug_with_retry(self.session,
'fake_vbd_ref')
self.assertEqual(1, self.session.xenapi.VBD.unplug.call_count)
def test_vbd_unplug_with_retry_success_at_second_time(self):
side_effects = [FakeUnplugException(['DEVICE_DETACH_REJECTED']),
None]
self.session.xenapi.VBD.unplug.side_effect = side_effects
self.dom0_pluginlib.XenAPI.Failure = FakeUnplugException
self.dom0_pluginlib._vbd_unplug_with_retry(self.session,
'fake_vbd_ref')
self.assertEqual(2, self.session.xenapi.VBD.unplug.call_count)
@mock.patch.object(time, 'sleep')
def test_vbd_unplug_with_retry_exceed_max_attempts(self, mock_sleep):
side_effects = ([FakeUnplugException(['DEVICE_DETACH_REJECTED'])]
* (self.dom0_pluginlib.MAX_VBD_UNPLUG_RETRIES + 1))
self.session.xenapi.VBD.unplug.side_effect = side_effects
self.dom0_pluginlib.XenAPI.Failure = FakeUnplugException
self.assertRaises(self.dom0_pluginlib.PluginError,
self.dom0_pluginlib._vbd_unplug_with_retry,
self.session, 'fake_vbd_ref')
self.assertEqual(self.dom0_pluginlib.MAX_VBD_UNPLUG_RETRIES,
self.session.xenapi.VBD.unplug.call_count)
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