Add basic stack-preview functional test
Change-Id: I401bc78488f62fe4d4674ae2d32678cce0242a56 Closes-bug: #1479594
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Angus Salkeld
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heat_integrationtests/functional/test_preview.py
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187
heat_integrationtests/functional/test_preview.py
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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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from heat_integrationtests.common import test
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from heatclient import exc
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import six
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class StackPreviewTest(test.HeatIntegrationTest):
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template = '''
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heat_template_version: 2015-04-30
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parameters:
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incomming:
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type: string
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resources:
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one:
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type: OS::Heat::TestResource
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properties:
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value: fred
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two:
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type: OS::Heat::TestResource
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properties:
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value: {get_param: incomming}
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depends_on: one
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outputs:
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main_out:
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value: {get_attr: [two, output]}
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'''
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env = '''
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parameters:
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incomming: abc
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'''
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def setUp(self):
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super(StackPreviewTest, self).setUp()
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self.client = self.orchestration_client
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self.project_id = self.identity_client.auth_ref.project_id
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def _assert_resource(self, res, stack_name):
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self.assertEqual(stack_name, res['stack_name'])
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self.assertEqual('INIT', res['resource_action'])
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self.assertEqual('COMPLETE', res['resource_status'])
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for field in ('resource_status_reason', 'physical_resource_id',
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'description'):
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self.assertIn(field, res)
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self.assertEqual('', res[field])
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for field in ('creation_time', 'updated_time'):
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self.assertIn(field, res)
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self.assertIsNotNone(res[field])
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self.assertIn('output', res['attributes'])
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# resource_identity
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self.assertEqual(stack_name,
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res['resource_identity']['stack_name'])
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self.assertEqual('None', res['resource_identity']['stack_id'])
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self.assertEqual(self.project_id,
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res['resource_identity']['tenant'])
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self.assertEqual('/resources/%s' % res['resource_name'],
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res['resource_identity']['path'])
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# stack_identity
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self.assertEqual(stack_name,
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res['stack_identity']['stack_name'])
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self.assertEqual('None', res['stack_identity']['stack_id'])
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self.assertEqual(self.project_id,
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res['stack_identity']['tenant'])
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self.assertEqual('', res['stack_identity']['path'])
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def _assert_results(self, result, stack_name):
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# global stuff.
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self.assertEqual(stack_name, result['stack_name'])
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self.assertTrue(result['disable_rollback'])
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self.assertEqual('None', result['id'])
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self.assertIsNone(result['parent'])
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self.assertEqual('No description', result['template_description'])
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# parameters
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self.assertEqual('None', result['parameters']['OS::stack_id'])
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self.assertEqual(stack_name, result['parameters']['OS::stack_name'])
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self.assertEqual('abc', result['parameters']['incomming'])
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def test_basic_pass(self):
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stack_name = self._stack_rand_name()
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result = self.client.stacks.preview(
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template=self.template,
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stack_name=stack_name,
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disable_rollback=True,
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environment=self.env).to_dict()
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self._assert_results(result, stack_name)
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for res in result['resources']:
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self._assert_resource(res, stack_name)
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self.assertEqual('OS::Heat::TestResource',
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res['resource_type'])
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# common properties
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self.assertEqual(False, res['properties']['fail'])
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self.assertEqual(0, res['properties']['wait_secs'])
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self.assertEqual(False, res['properties']['update_replace'])
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if res['resource_name'] == 'one':
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self.assertEqual('fred', res['properties']['value'])
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self.assertEqual(['two'], res['required_by'])
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if res['resource_name'] == 'two':
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self.assertEqual('abc', res['properties']['value'])
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self.assertEqual([], res['required_by'])
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def test_basic_fail(self):
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stack_name = self._stack_rand_name()
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# break the template so it fails validation.
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wont_work = self.template.replace('get_param: incomming',
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'get_param: missing')
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excp = self.assertRaises(exc.HTTPBadRequest,
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self.client.stacks.preview,
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template=wont_work,
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stack_name=stack_name,
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disable_rollback=True,
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environment=self.env)
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self.assertIn('Property error: : resources.two.properties.value: '
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': The Parameter (missing) was not provided.',
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six.text_type(excp))
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def test_nested_pass(self):
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"""Nested stacks need to recurse down the stacks."""
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main_template = '''
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heat_template_version: 2015-04-30
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parameters:
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incomming:
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type: string
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resources:
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main:
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type: nested.yaml
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properties:
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value: {get_param: incomming}
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outputs:
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main_out:
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value: {get_attr: [main, output]}
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'''
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nested_template = '''
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heat_template_version: 2015-04-30
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parameters:
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value:
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type: string
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resources:
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nested:
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type: OS::Heat::TestResource
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properties:
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value: {get_param: value}
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outputs:
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output:
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value: {get_attr: [nested, output]}
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'''
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stack_name = self._stack_rand_name()
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result = self.client.stacks.preview(
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disable_rollback=True,
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stack_name=stack_name,
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template=main_template,
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files={'nested.yaml': nested_template},
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environment=self.env).to_dict()
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self._assert_results(result, stack_name)
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# nested resources return a list of their resources.
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res = result['resources'][0][0]
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nested_stack_name = '%s-%s' % (stack_name,
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res['parent_resource'])
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self._assert_resource(res, nested_stack_name)
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self.assertEqual('OS::Heat::TestResource',
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res['resource_type'])
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self.assertEqual(False, res['properties']['fail'])
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self.assertEqual(0, res['properties']['wait_secs'])
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self.assertEqual(False, res['properties']['update_replace'])
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self.assertEqual('abc', res['properties']['value'])
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self.assertEqual([], res['required_by'])
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