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