heat/heat/tests/test_nested_stack.py

102 lines
3.1 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# 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.
import unittest
import mox
from nose.plugins.attrib import attr
from heat.common import context
from heat.common import exception
from heat.common import template_format
from heat.engine import parser
from heat.engine.resources import stack as nested_stack
from heat.common import urlfetch
from heat.tests.utils import setup_dummy_db
@attr(tag=['unit', 'resource'])
@attr(speed='fast')
class NestedStackTest(unittest.TestCase):
test_template = '''
HeatTemplateFormatVersion: '2012-12-12'
Resources:
the_nested:
Type: AWS::CloudFormation::Stack
Properties:
TemplateURL: https://localhost/the.template
Parameters:
KeyName: foo
'''
nested_template = '''
HeatTemplateFormatVersion: '2012-12-12'
Outputs:
Foo:
Value: bar
'''
def setUp(self):
self.m = mox.Mox()
self.m.StubOutWithMock(urlfetch, 'get')
setup_dummy_db()
def tearDown(self):
self.m.UnsetStubs()
print "NestedStackTest teardown complete"
def create_stack(self, template):
t = template_format.parse(template)
stack = self.parse_stack(t)
self.assertEqual(None, stack.create())
return stack
def parse_stack(self, t):
ctx = context.RequestContext.from_dict({
'tenant': 'test_tenant',
'tenant_id': 'aaaa',
'username': 'test_username',
'password': 'password',
'auth_url': 'http://localhost:5000/v2.0'})
stack_name = 'test_stack'
tmpl = parser.Template(t)
params = parser.Parameters(stack_name, tmpl, {})
stack = parser.Stack(ctx, stack_name, tmpl, params)
stack.store()
return stack
def test_nested_stack(self):
urlfetch.get('https://localhost/the.template').AndReturn(
self.nested_template)
self.m.ReplayAll()
stack = self.create_stack(self.test_template)
resource = stack['the_nested']
self.assertTrue(resource.FnGetRefId().startswith(
'arn:openstack:heat::aaaa:stacks/test_stack.the_nested/'))
self.assertEqual(nested_stack.NestedStack.UPDATE_REPLACE,
resource.handle_update({}))
self.assertEqual('bar', resource.FnGetAtt('Outputs.Foo'))
self.assertRaises(
exception.InvalidTemplateAttribute, resource.FnGetAtt, 'Foo')
resource.delete()
self.assertTrue(resource.FnGetRefId().startswith(
'arn:openstack:heat::aaaa:stacks/test_stack.the_nested/'))
self.m.VerifyAll()