96 lines
3.5 KiB
Python
96 lines
3.5 KiB
Python
# Copyright 2014 Red Hat Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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import mock
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from neutron.agent.linux import external_process
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from neutron.tests import base
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TEST_UUID = 'test-uuid'
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TEST_SERVICE = 'testsvc'
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TEST_PID = 1234
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class BaseTestProcessMonitor(base.BaseTestCase):
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def setUp(self):
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super(BaseTestProcessMonitor, self).setUp()
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self.log_patch = mock.patch("neutron.agent.linux.external_process."
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"LOG.error")
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self.error_log = self.log_patch.start()
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self.spawn_patch = mock.patch("eventlet.spawn")
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self.eventlent_spawn = self.spawn_patch.start()
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# create a default process monitor
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self.create_child_process_monitor('respawn')
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def create_child_process_monitor(self, action):
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conf = mock.Mock()
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conf.AGENT.check_child_processes_action = action
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conf.AGENT.check_child_processes = True
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self.pmonitor = external_process.ProcessMonitor(
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config=conf,
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resource_type='test')
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def get_monitored_process(self, uuid, service=None):
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monitored_process = mock.Mock()
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self.pmonitor.register(uuid=uuid,
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service_name=service,
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monitored_process=monitored_process)
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return monitored_process
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class TestProcessMonitor(BaseTestProcessMonitor):
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def test_error_logged(self):
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pm = self.get_monitored_process(TEST_UUID)
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pm.active = False
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self.pmonitor._check_child_processes()
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self.assertTrue(self.error_log.called)
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def test_exit_handler(self):
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self.create_child_process_monitor('exit')
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pm = self.get_monitored_process(TEST_UUID)
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pm.active = False
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with mock.patch.object(external_process.ProcessMonitor,
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'_exit_handler') as exit_handler:
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self.pmonitor._check_child_processes()
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exit_handler.assert_called_once_with(TEST_UUID, None)
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def test_register(self):
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pm = self.get_monitored_process(TEST_UUID)
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self.assertEqual(len(self.pmonitor._monitored_processes), 1)
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self.assertIn(pm, self.pmonitor._monitored_processes.values())
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def test_register_same_service_twice(self):
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self.get_monitored_process(TEST_UUID)
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self.get_monitored_process(TEST_UUID)
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self.assertEqual(len(self.pmonitor._monitored_processes), 1)
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def test_register_different_service_types(self):
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self.get_monitored_process(TEST_UUID)
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self.get_monitored_process(TEST_UUID, TEST_SERVICE)
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self.assertEqual(len(self.pmonitor._monitored_processes), 2)
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def test_unregister(self):
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self.get_monitored_process(TEST_UUID)
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self.pmonitor.unregister(TEST_UUID, None)
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self.assertEqual(len(self.pmonitor._monitored_processes), 0)
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def test_unregister_unknown_process(self):
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self.pmonitor.unregister(TEST_UUID, None)
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self.assertEqual(len(self.pmonitor._monitored_processes), 0)
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