295 lines
11 KiB
Python
295 lines
11 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from unittest import mock
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from automaton import exceptions as automaton_errors
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from eventlet import semaphore
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import fixtures
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from futurist import periodics
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from oslo_config import cfg
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import stevedore
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from ironic_inspector.common import ironic as ir_utils
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from ironic_inspector.pxe_filter import base as pxe_filter
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from ironic_inspector.pxe_filter import interface
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from ironic_inspector.test import base as test_base
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CONF = cfg.CONF
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class TestFilter(pxe_filter.BaseFilter):
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pass
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class TestDriverManager(test_base.BaseTest):
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def setUp(self):
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super(TestDriverManager, self).setUp()
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pxe_filter._DRIVER_MANAGER = None
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stevedore_driver_fixture = self.useFixture(fixtures.MockPatchObject(
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stevedore.driver, 'DriverManager', autospec=True))
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self.stevedore_driver_mock = stevedore_driver_fixture.mock
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def test_default(self):
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driver_manager = pxe_filter._driver_manager()
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self.stevedore_driver_mock.assert_called_once_with(
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pxe_filter._STEVEDORE_DRIVER_NAMESPACE,
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name='iptables',
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invoke_on_load=True
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)
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self.assertIsNotNone(driver_manager)
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self.assertIs(pxe_filter._DRIVER_MANAGER, driver_manager)
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def test_pxe_filter_name(self):
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CONF.set_override('driver', 'foo', 'pxe_filter')
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driver_manager = pxe_filter._driver_manager()
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self.stevedore_driver_mock.assert_called_once_with(
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pxe_filter._STEVEDORE_DRIVER_NAMESPACE,
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'foo',
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invoke_on_load=True
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)
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self.assertIsNotNone(driver_manager)
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self.assertIs(pxe_filter._DRIVER_MANAGER, driver_manager)
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def test_default_existing_driver_manager(self):
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pxe_filter._DRIVER_MANAGER = True
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driver_manager = pxe_filter._driver_manager()
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self.stevedore_driver_mock.assert_not_called()
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self.assertIs(pxe_filter._DRIVER_MANAGER, driver_manager)
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class TestDriverManagerLoading(test_base.BaseTest):
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def setUp(self):
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super(TestDriverManagerLoading, self).setUp()
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pxe_filter._DRIVER_MANAGER = None
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@mock.patch.object(pxe_filter, 'NoopFilter', autospec=True)
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def test_pxe_filter_driver_loads(self, noop_driver_cls):
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CONF.set_override('driver', 'noop', 'pxe_filter')
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driver_manager = pxe_filter._driver_manager()
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noop_driver_cls.assert_called_once_with()
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self.assertIs(noop_driver_cls.return_value, driver_manager.driver)
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def test_invalid_filter_driver(self):
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CONF.set_override('driver', 'foo', 'pxe_filter')
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self.assertRaisesRegex(stevedore.exception.NoMatches, 'foo',
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pxe_filter._driver_manager)
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self.assertIsNone(pxe_filter._DRIVER_MANAGER)
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class BaseFilterBaseTest(test_base.BaseTest):
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def setUp(self):
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super(BaseFilterBaseTest, self).setUp()
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self.mock_lock = mock.MagicMock(spec=semaphore.BoundedSemaphore)
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self.mock_bounded_semaphore = self.useFixture(
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fixtures.MockPatchObject(semaphore, 'BoundedSemaphore')).mock
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self.mock_bounded_semaphore.return_value = self.mock_lock
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self.driver = TestFilter()
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def assert_driver_is_locked(self):
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"""Assert the driver is currently locked and wasn't locked before."""
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self.driver.lock.__enter__.assert_called_once_with()
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self.driver.lock.__exit__.assert_not_called()
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def assert_driver_was_locked_once(self):
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"""Assert the driver was locked exactly once before."""
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self.driver.lock.__enter__.assert_called_once_with()
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self.driver.lock.__exit__.assert_called_once_with(None, None, None)
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def assert_driver_was_not_locked(self):
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"""Assert the driver was not locked"""
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self.mock_lock.__enter__.assert_not_called()
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self.mock_lock.__exit__.assert_not_called()
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class TestLockedDriverEvent(BaseFilterBaseTest):
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def setUp(self):
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super(TestLockedDriverEvent, self).setUp()
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self.mock_fsm_reset_on_error = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'fsm_reset_on_error')).mock
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self.expected_args = (None,)
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self.expected_kwargs = {'foo': None}
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self.mock_fsm = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'fsm')).mock
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(self.driver.fsm_reset_on_error.return_value.
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__enter__.return_value) = self.mock_fsm
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def test_locked_driver_event(self):
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event = 'foo'
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@pxe_filter.locked_driver_event(event)
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def fun(driver, *args, **kwargs):
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self.assertIs(self.driver, driver)
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self.assertEqual(self.expected_args, args)
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self.assertEqual(self.expected_kwargs, kwargs)
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self.assert_driver_is_locked()
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self.assert_driver_was_not_locked()
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fun(self.driver, *self.expected_args, **self.expected_kwargs)
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self.mock_fsm_reset_on_error.assert_called_once_with()
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self.mock_fsm.process_event.assert_called_once_with(event)
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self.assert_driver_was_locked_once()
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class TestBaseFilterFsmPrecautions(BaseFilterBaseTest):
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def setUp(self):
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super(TestBaseFilterFsmPrecautions, self).setUp()
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self.mock_fsm = self.useFixture(
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fixtures.MockPatchObject(TestFilter, 'fsm')).mock
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# NOTE(milan): overriding driver so that the patch ^ is applied
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self.mock_bounded_semaphore.reset_mock()
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self.driver = TestFilter()
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self.mock_reset = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'reset')).mock
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def test___init__(self):
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self.assertIs(self.mock_lock, self.driver.lock)
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self.mock_bounded_semaphore.assert_called_once_with()
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self.assertIs(self.mock_fsm, self.driver.fsm)
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self.mock_fsm.initialize.assert_called_once_with(
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start_state=pxe_filter.States.uninitialized)
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def test_fsm_reset_on_error(self):
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with self.driver.fsm_reset_on_error() as fsm:
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self.assertIs(self.mock_fsm, fsm)
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self.mock_reset.assert_not_called()
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def test_fsm_automaton_error(self):
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def fun():
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with self.driver.fsm_reset_on_error():
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raise automaton_errors.NotFound('Oops!')
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self.assertRaisesRegex(pxe_filter.InvalidFilterDriverState,
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'.*TestFilter.*Oops!', fun)
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self.mock_reset.assert_not_called()
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def test_fsm_reset_on_error_ctx_custom_error(self):
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class MyError(Exception):
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pass
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def fun():
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with self.driver.fsm_reset_on_error():
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raise MyError('Oops!')
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self.assertRaisesRegex(MyError, 'Oops!', fun)
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self.mock_reset.assert_called_once_with()
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class TestBaseFilterInterface(BaseFilterBaseTest):
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def setUp(self):
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super(TestBaseFilterInterface, self).setUp()
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self.mock_get_client = self.useFixture(
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fixtures.MockPatchObject(ir_utils, 'get_client')).mock
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self.mock_ironic = mock.Mock()
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self.mock_get_client.return_value = self.mock_ironic
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self.mock_periodic = self.useFixture(
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fixtures.MockPatchObject(periodics, 'periodic')).mock
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self.mock_reset = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'reset')).mock
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self.mock_log = self.useFixture(
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fixtures.MockPatchObject(pxe_filter, 'LOG')).mock
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self.driver.fsm_reset_on_error = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'fsm_reset_on_error')).mock
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def test_init_filter(self):
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self.driver.init_filter()
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self.mock_log.debug.assert_called_once_with(
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'Initializing the PXE filter driver %s', self.driver)
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self.mock_reset.assert_not_called()
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def test_sync(self):
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self.driver.sync(self.mock_ironic)
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self.mock_reset.assert_not_called()
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def test_tear_down_filter(self):
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self.assert_driver_was_not_locked()
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self.driver.tear_down_filter()
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self.assert_driver_was_locked_once()
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self.mock_reset.assert_called_once_with()
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def test_get_periodic_sync_task(self):
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sync_mock = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'sync')).mock
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self.driver.get_periodic_sync_task()
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self.mock_periodic.assert_called_once_with(spacing=15, enabled=True)
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self.mock_periodic.return_value.call_args[0][0]()
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sync_mock.assert_called_once_with(self.mock_get_client.return_value)
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def test_get_periodic_sync_task_invalid_state(self):
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sync_mock = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'sync')).mock
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sync_mock.side_effect = pxe_filter.InvalidFilterDriverState('Oops!')
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self.driver.get_periodic_sync_task()
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self.mock_periodic.assert_called_once_with(spacing=15, enabled=True)
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self.assertRaisesRegex(periodics.NeverAgain, 'Oops!',
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self.mock_periodic.return_value.call_args[0][0])
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def test_get_periodic_sync_task_custom_error(self):
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class MyError(Exception):
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pass
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sync_mock = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'sync')).mock
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sync_mock.side_effect = MyError('Oops!')
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self.driver.get_periodic_sync_task()
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self.mock_periodic.assert_called_once_with(spacing=15, enabled=True)
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self.assertRaisesRegex(
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MyError, 'Oops!', self.mock_periodic.return_value.call_args[0][0])
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def test_get_periodic_sync_task_disabled(self):
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CONF.set_override('sync_period', 0, 'pxe_filter')
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self.driver.get_periodic_sync_task()
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self.mock_periodic.assert_called_once_with(spacing=float('inf'),
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enabled=False)
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def test_get_periodic_sync_task_custom_spacing(self):
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CONF.set_override('sync_period', 4224, 'pxe_filter')
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self.driver.get_periodic_sync_task()
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self.mock_periodic.assert_called_once_with(spacing=4224, enabled=True)
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class TestDriverReset(BaseFilterBaseTest):
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def setUp(self):
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super(TestDriverReset, self).setUp()
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self.mock_fsm = self.useFixture(
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fixtures.MockPatchObject(self.driver, 'fsm')).mock
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def test_reset(self):
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self.driver.reset()
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self.assert_driver_was_not_locked()
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self.mock_fsm.process_event.assert_called_once_with(
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pxe_filter.Events.reset)
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class TestDriver(test_base.BaseTest):
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def setUp(self):
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super(TestDriver, self).setUp()
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self.mock_driver = mock.Mock(spec=interface.FilterDriver)
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self.mock__driver_manager = self.useFixture(
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fixtures.MockPatchObject(pxe_filter, '_driver_manager')).mock
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self.mock__driver_manager.return_value.driver = self.mock_driver
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def test_driver(self):
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ret = pxe_filter.driver()
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self.assertIs(self.mock_driver, ret)
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self.mock__driver_manager.assert_called_once_with()
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