def test_revert_nova_fails(self):
self._datastore_changes_to(srvstatus.ServiceStatuses.SHUTDOWN)
with mock.patch.object(utils, 'poll_until') as mock_poll_until:
self.poll_until_side_effects.extend([
None, ("VERIFY_RESIZE", NEW_FLAVOR_ID), None,
PollTimeOut(), ("ERROR", OLD_FLAVOR_ID)
])
mock_poll_until.side_effect = self._poll_until
self.instance.set_datastore_status_to_paused.side_effect = (
lambda: self._datastore_changes_to(srvstatus.ServiceStatuses.
PAUSED))
self.assertRaises(PollTimeOut, self.action.execute)
expected_calls = [mock.call(mock.ANY, sleep_time=2, time_out=120)
] * 5
self.assertEqual(expected_calls, mock_poll_until.call_args_list)
# Make sure self.poll_until_side_effects is empty
self.assertFalse(self.poll_until_side_effects)
self.assertEqual(1, self.guest.stop_db.call_count)
self.server.resize.assert_called_once_with(NEW_FLAVOR_ID)
self.instance.set_datastore_status_to_paused.assert_called_once()
self.instance.guest.reset_configuration.assert_called_once_with(
mock.ANY)
self.instance.server.revert_resize.assert_called_once()
self.instance.update_db.assert_called_once_with(
task_status=InstanceTasks.NONE)
def test_nova_resize_timeout(self):
self._datastore_changes_to(srvstatus.ServiceStatuses.SHUTDOWN)
self.server.status = "ACTIVE"
with mock.patch.object(utils, 'poll_until') as mock_poll_until:
mock_poll_until.side_effect = [None, PollTimeOut()]
self.assertRaises(PollTimeOut, self.action.execute)
expected_calls = [mock.call(mock.ANY, sleep_time=2, time_out=120)
] * 2
self.assertEqual(expected_calls, mock_poll_until.call_args_list)
self.assertEqual(1, self.guest.stop_db.call_count)
self.server.resize.assert_called_once_with(NEW_FLAVOR_ID)
self.instance.update_db.assert_called_once_with(
task_status=InstanceTasks.NONE)
def resize(self, new_flavor_id=None, force_host=None):
self._current_status = "RESIZE"
if self.name.endswith("_RESIZE_TIMEOUT"):
raise PollTimeOut()
def set_to_confirm_mode():
self._current_status = "VERIFY_RESIZE"
def set_to_active():
self.parent.schedule_simulate_running_server(self.id, 1.5)
eventlet.spawn_after(1, set_to_active)
def change_host():
self.old_host = self.host
if not force_host:
self.host = [host for host in FAKE_HOSTS
if host != self.host][0]
else:
self.host = force_host
def set_flavor():
if self.name.endswith("_RESIZE_ERROR"):
self._current_status = "ACTIVE"
return
if new_flavor_id is None:
# Migrations are flavorless flavor resizes.
# A resize MIGHT change the host, but a migrate
# deliberately does.
LOG.debug("Migrating fake instance.")
eventlet.spawn_after(0.75, change_host)
else:
LOG.debug("Resizing fake instance.")
self.old_flavor_ref = self.flavor_ref
flavor = self.parent.flavors.get(new_flavor_id)
self.flavor_ref = flavor.links[0]['href']
eventlet.spawn_after(1, set_to_confirm_mode)
eventlet.spawn_after(0.8, set_flavor)