charm-nova-cell-controller/unit_tests/test_nova_cell_controller_handlers.py
Hervé Beraud ff9280d24d Use unittest.mock instead of mock
The mock third party library was needed for mock support in py2
runtimes. Since we now only support py36 and later, we can use the
standard lib unittest.mock module instead.

Note that https://github.com/openstack/charms.openstack is used during tests
and he need `mock`, unfortunatelly it doesn't declare `mock` in its
requirements so it retrieve mock from other charm project (cross dependency).
So we depend on charms.openstack first and when
Ib1ed5b598a52375e29e247db9ab4786df5b6d142 will be merged then CI
will pass without errors.

Depends-On: Ib1ed5b598a52375e29e247db9ab4786df5b6d142
Change-Id: I821bf39f976be059f6e7e03b337d6f323787dcb0
2021-12-15 14:18:49 +00:00

185 lines
7.1 KiB
Python

# Copyright 2016 Canonical Ltd
#
# 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.
from __future__ import absolute_import
from __future__ import print_function
from unittest import mock
import reactive.nova_cell_controller_handlers as handlers
import charms_openstack.test_utils as test_utils
class TestRegisteredHooks(test_utils.TestRegisteredHooks):
def test_hooks(self):
defaults = [
'charm.installed',
'amqp.connected',
'shared-db.connected',
'config.changed',
'update-status']
hook_set = {
'when': {
'render_stuff': (
'shared-db.available',
'amqp.available',),
'db_setup': ('config.rendered',),
'send_compute_data': (
'endpoint.nova-cell-compute.changed',
'endpoint.cloud-compute.joined',),
'send_cell_data': (
'shared-db.available',
'endpoint.nova-cell-compute.joined',
'amqp.available',),
'request_credentials': (
'identity-credentials.connected',)},
'when_not': {
'db_setup': ('shared-db.synced',)}
}
# test that the hooks were registered via the
# reactive.nova_cell_controller_handlers
self.registered_hooks_test_helper(handlers, hook_set, defaults)
class TestRenderStuff(test_utils.PatchHelper):
def bob(self, release='mitaka'):
self.ncc_charm = mock.MagicMock()
self.patch_object(handlers.charm, 'provide_charm_instance',
new=mock.MagicMock())
self.provide_charm_instance().__enter__.return_value = self.ncc_charm
self.provide_charm_instance().__exit__.return_value = None
self.patch_object(handlers, 'set_flag')
self.patch_object(handlers.hookenv, 'config')
self.patch_object(handlers.os_utils, 'get_os_codename_install_source')
self.mock_nc_ep = mock.MagicMock()
self.mock_ncc_ep = mock.MagicMock()
self.mock_amqp_ep = mock.MagicMock()
self.mock_cred_conn_ep = mock.MagicMock()
self.mock_cred_avail_ep = None
if release == 'train':
self.mock_cred_avail_ep = 'arg3'
self.mock_db_ep = mock.MagicMock()
def _endpoint_from_flag(ep):
mocks = {
'endpoint.cloud-compute.joined': self.mock_nc_ep,
'endpoint.nova-cell-compute.joined': self.mock_ncc_ep,
'endpoint.nova-cell-compute.changed': self.mock_ncc_ep,
'amqp.available': self.mock_amqp_ep,
'identity-credentials.connected': self.mock_cred_conn_ep,
'identity-credentials.available.auth': self.mock_cred_avail_ep,
'shared-db.available': self.mock_db_ep}
return mocks[ep]
self.patch_object(handlers, 'endpoint_from_flag',
side_effect=_endpoint_from_flag)
def test_request_credentials(self):
self.bob()
handlers.request_credentials()
self.mock_cred_conn_ep.request_credentials.assert_called_with(
'nova-cell-controller',
project='services')
def test_render_stuff(self):
self.bob(release='stein')
self.get_os_codename_install_source.return_value = 'stein'
handlers.render_stuff('arg1', 'arg2')
self.ncc_charm.render_with_interfaces.assert_called_once_with(
('arg1', 'arg2'))
self.ncc_charm.assess_status.assert_called_once_with()
self.set_flag.assert_called_once_with('config.rendered')
self.bob(release='train')
self.get_os_codename_install_source.return_value = 'train'
handlers.render_stuff('arg1', 'arg2')
self.ncc_charm.render_with_interfaces.assert_called_once_with(
('arg1', 'arg2', 'arg3'))
self.ncc_charm.assess_status.assert_called_once_with()
self.set_flag.assert_called_once_with('config.rendered')
def test_db_setup(self):
self.bob()
handlers.db_setup('arg1')
self.ncc_charm.db_sync.assert_called_once_with()
self.ncc_charm.restart_all.assert_called_once_with()
self.set_flag.assert_called_once_with('shared-db.synced')
def test_send_compute_data(self):
self.bob()
self.mock_ncc_ep.get_region.return_value = {
'region': 'Region52'}
self.mock_ncc_ep.get_volume_data.return_value = {
'volume_service': 'cinder'}
self.mock_ncc_ep.get_ec2_data.return_value = {
'ec2_host': 'http://ec2host'}
self.mock_ncc_ep.get_restart_trigger.return_value = {
'restart_trigger': 'a-uuid'}
self.mock_ncc_ep.get_network_data.return_value = {
'quantum_url': 'http://neutron:1234/api',
'quantum_plugin': 'ovs',
'network_manager': 'neutron',
'quantum_security_groups': True,
}
self.mock_ncc_ep.get_console_data.return_value = {
'serial_console_base_url': 'http://nova/serial',
'enable_serial_console': True,
}
handlers.send_compute_data()
self.mock_nc_ep.set_network_data.assert_called_once_with(
'http://neutron:1234/api',
neutron_plugin='ovs',
network_manager='neutron',
enable_security_groups=True)
self.mock_nc_ep.set_console_data.assert_called_once_with(
serial_console_base_url='http://nova/serial',
enable_serial_console=True,
)
self.mock_nc_ep.set_region.assert_called_once_with(
'Region52')
self.mock_nc_ep.set_volume_data.assert_called_once_with(
'cinder')
self.mock_nc_ep.set_ec2_data.assert_called_once_with(
'http://ec2host')
self.mock_nc_ep.trigger_remote_restart.assert_called_once_with(
restart_key='a-uuid')
def test_send_cell_data(self):
self.bob()
mock_amqp_conv = mock.MagicMock()
mock_amqp_conv.units = [
'rabbitmq-server-cell2/0',
'rabbitmq-server-cell2/1']
self.mock_amqp_ep.conversation.return_value = mock_amqp_conv
mock_db_conv = mock.MagicMock()
mock_db_conv.units = [
'percona-cluster-cell2/0',
'percona-clustercell2/1']
self.mock_db_ep.conversation.return_value = mock_db_conv
self.config.return_value = 'cell2'
handlers.send_cell_data()
self.mock_ncc_ep.send_cell_data.assert_called_once_with(
'cell2',
'rabbitmq-server-cell2',
'percona-cluster-cell2')