104 lines
3.7 KiB
Python
104 lines
3.7 KiB
Python
#
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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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import mock
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from heat.common import exception
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from heat.common import template_format
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from heat.engine.resources.openstack.heat import cloud_watch
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from heat.engine import scheduler
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from heat.engine import watchrule
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from heat.tests import common
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from heat.tests import utils
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AWS_CloudWatch_Alarm = '''
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HeatTemplateFormatVersion: '2012-12-12'
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Description: Template which tests alarms
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Resources:
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test_me:
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Type: AWS::CloudWatch::Alarm
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Properties:
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MetricName: cpu_util
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Namespace: AWS/EC2
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Statistic: Average
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Period: '60'
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EvaluationPeriods: '1'
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Threshold: '50'
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ComparisonOperator: GreaterThanThreshold
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'''
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class CloudWatchAlarmTest(common.HeatTestCase):
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def setUp(self):
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super(CloudWatchAlarmTest, self).setUp()
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self.ctx = utils.dummy_context()
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def parse_stack(self):
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t = template_format.parse(AWS_CloudWatch_Alarm)
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self.stack = utils.parse_stack(t)
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return self.stack
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def test_resource_create_good(self):
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s = self.parse_stack()
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self.assertIsNone(scheduler.TaskRunner(s['test_me'].create)())
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def test_resource_create_failed(self):
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s = self.parse_stack()
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with mock.patch.object(watchrule.WatchRule, 'store') as bad_store:
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bad_store.side_effect = KeyError('any random failure')
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task_func = scheduler.TaskRunner(s['test_me'].create)
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self.assertRaises(exception.ResourceFailure, task_func)
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def test_resource_delete_good(self):
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s = self.parse_stack()
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self.assertIsNone(scheduler.TaskRunner(s['test_me'].create)())
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self.assertIsNone(scheduler.TaskRunner(s['test_me'].delete)())
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def test_resource_delete_notfound(self):
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# if a resource is not found, handle_delete() should not raise
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# an exception.
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s = self.parse_stack()
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self.assertIsNone(scheduler.TaskRunner(s['test_me'].create)())
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res_name = self.stack['test_me'].physical_resource_name()
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self.wr = watchrule.WatchRule.load(self.ctx,
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watch_name=res_name)
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with mock.patch.object(watchrule.WatchRule, 'destroy') as bad_destroy:
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watch_exc = exception.WatchRuleNotFound(watch_name='test')
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bad_destroy.side_effect = watch_exc
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self.assertIsNone(scheduler.TaskRunner(s['test_me'].delete)())
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def _get_watch_rule(self):
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stack = self.parse_stack()
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return stack['test_me']
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@mock.patch.object(cloud_watch.watchrule.WatchRule, 'load')
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def test_check(self, mock_lock):
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res = self._get_watch_rule()
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scheduler.TaskRunner(res.check)()
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self.assertEqual((res.CHECK, res.COMPLETE), res.state)
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@mock.patch.object(cloud_watch.watchrule.WatchRule, 'load')
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def test_check_fail(self, mock_load):
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res = self._get_watch_rule()
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exc = cloud_watch.exception.WatchRuleNotFound(watch_name='Boom')
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mock_load.side_effect = exc
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self.assertRaises(exception.ResourceFailure,
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scheduler.TaskRunner(res.check))
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self.assertEqual((res.CHECK, res.FAILED), res.state)
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self.assertIn('Boom', res.status_reason)
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