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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.
"""
test_stack
----------------------------------
Functional tests for stack methods.
"""
import tempfile
from openstack import exceptions
from openstack.tests import fakes
from openstack.tests.functional import base
simple_template = '''heat_template_version: 2014-10-16
parameters:
length:
type: number
default: 10
resources:
my_rand:
type: OS::Heat::RandomString
properties:
length: {get_param: length}
outputs:
rand:
value:
get_attr: [my_rand, value]
'''
root_template = '''heat_template_version: 2014-10-16
parameters:
length:
type: number
default: 10
count:
type: number
default: 5
resources:
my_rands:
type: OS::Heat::ResourceGroup
properties:
count: {get_param: count}
resource_def:
type: My::Simple::Template
properties:
length: {get_param: length}
outputs:
rands:
value:
get_attr: [my_rands, attributes, rand]
'''
environment = '''
resource_registry:
My::Simple::Template: %s
'''
validate_template = '''heat_template_version: asdf-no-such-version '''
class TestStack(base.BaseFunctionalTest):
def setUp(self):
super().setUp()
if not self.user_cloud.has_service('orchestration'):
self.skipTest('Orchestration service not supported by cloud')
def _cleanup_stack(self):
self.user_cloud.delete_stack(self.stack_name, wait=True)
self.assertIsNone(self.user_cloud.get_stack(self.stack_name))
def test_stack_validation(self):
test_template = tempfile.NamedTemporaryFile(delete=False)
test_template.write(validate_template.encode('utf-8'))
test_template.close()
stack_name = self.getUniqueString('validate_template')
self.assertRaises(
exceptions.SDKException,
self.user_cloud.create_stack,
name=stack_name,
template_file=test_template.name,
)
def test_stack_simple(self):
test_template = tempfile.NamedTemporaryFile(delete=False)
test_template.write(fakes.FAKE_TEMPLATE.encode('utf-8'))
test_template.close()
self.stack_name = self.getUniqueString('simple_stack')
self.addCleanup(self._cleanup_stack)
stack = self.user_cloud.create_stack(
name=self.stack_name, template_file=test_template.name, wait=True
)
# assert expected values in stack
self.assertEqual('CREATE_COMPLETE', stack['stack_status'])
rand = stack['outputs'][0]['output_value']
self.assertEqual(10, len(rand))
# assert get_stack matches returned create_stack
stack = self.user_cloud.get_stack(self.stack_name)
self.assertEqual('CREATE_COMPLETE', stack['stack_status'])
self.assertEqual(rand, stack['outputs'][0]['output_value'])
# assert stack is in list_stacks
stacks = self.user_cloud.list_stacks()
stack_ids = [s['id'] for s in stacks]
self.assertIn(stack['id'], stack_ids)
# update with no changes
stack = self.user_cloud.update_stack(
self.stack_name, template_file=test_template.name, wait=True
)
# assert no change in updated stack
self.assertEqual('UPDATE_COMPLETE', stack['stack_status'])
rand = stack['outputs'][0]['output_value']
self.assertEqual(rand, stack['outputs'][0]['output_value'])
# update with changes
stack = self.user_cloud.update_stack(
self.stack_name,
template_file=test_template.name,
wait=True,
length=12,
)
# assert changed output in updated stack
stack = self.user_cloud.get_stack(self.stack_name)
self.assertEqual('UPDATE_COMPLETE', stack['stack_status'])
new_rand = stack['outputs'][0]['output_value']
self.assertNotEqual(rand, new_rand)
self.assertEqual(12, len(new_rand))
def test_stack_nested(self):
test_template = tempfile.NamedTemporaryFile(
suffix='.yaml', delete=False
)
test_template.write(root_template.encode('utf-8'))
test_template.close()
simple_tmpl = tempfile.NamedTemporaryFile(suffix='.yaml', delete=False)
simple_tmpl.write(fakes.FAKE_TEMPLATE.encode('utf-8'))
simple_tmpl.close()
env = tempfile.NamedTemporaryFile(suffix='.yaml', delete=False)
expanded_env = environment % simple_tmpl.name
env.write(expanded_env.encode('utf-8'))
env.close()
self.stack_name = self.getUniqueString('nested_stack')
self.addCleanup(self._cleanup_stack)
stack = self.user_cloud.create_stack(
name=self.stack_name,
template_file=test_template.name,
environment_files=[env.name],
wait=True,
)
# assert expected values in stack
self.assertEqual('CREATE_COMPLETE', stack['stack_status'])
rands = stack['outputs'][0]['output_value']
self.assertEqual(['0', '1', '2', '3', '4'], sorted(rands.keys()))
for rand in rands.values():
self.assertEqual(10, len(rand))
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